Buss Fuse Selection Chart (600 Volts or Less)
Circuit Load Ampere Fuse Symbol Voltage Interrupting Remarks
Rating Type Rating (a-c) Class Rating Page
(KA)
Conventional Dimensions—Class RK1, RK5 (0-600A), L (601-6000A)
All type loads 0-600A LOW-PEAK®LPN-RK_SP 250V RK1†† 300 All-purpose fuses. 7-9
(optimum (dual-element, LPS-RK_SP 600V Unequaled for combined
overcurrent time-delay) short-circuit and
protection). 601 to LOW-PEAK®KRP-C_SP 600V L 300 overload protection. 4-5
6000A (time-delay) (Specification grade product)
Motors, welder, 0 FUSETRON®FRN-R 250V RK5†† 200 Moderate degree of 10
transformers, to (dual-element, FRS-R 600V current limitation. Time-delay 11
capacitor banks 600A time-delay) passes surge currents.
(circuits with heavy 0 DURA-LAGTM DLN-R 250V RK5 200 12
inrush currents). to (dual-element, DLS-R 600V
600A time-delay)
601 to LIMITRON®KLU 600V L 200 All-purpose fuse. Time- 6
Main, 4000A (time-delay) delay passes surge-currents.
Feeder Non-motor loads KTN-R 250V RK1†† 200 Same short-circuit protection 13
and (circuits with no 0 KTS-R 600V as LOW-PEAK fuses but
Branch heavy inrush to must be sized larger for
currents). 600A LIMITRON®circuits with surge-currents;
LIMITRON fuses
_____
(fast-acting) i.e., up to 300%.
particularly suited for 601 to KTU 600V L 200 A fast acting, high 6
circuit breaker 6000A performance fuse.
protection.
Reduced Dimensions For Installation in Restricted SpaceClass J(0-600A), T(0-1200A), CC(0-30A), G(0-60A)
All type loads LOW-PEAK®LPJ_SP 600V J 300 All-purpose fuses. 15
(optimum (dual-element Unequaled for combined
overcurrent time-delay) short-circuit and overload
protection). 0protection. (Specification
__________ to grade product)
Non-motor loads 600A LIMITRON®JKS 600V J 200 Very similar to KTS-R 16
(circuits with no (quick acting) LIMITRON, but smaller.
heavy inrush 0 to T-TRONTM JJN 300V T 200 The space saver (⁄Ω£ the size 17
currents). 1200A JJS 600V of KTN-R/KTS-R).
Motor loads 0 to 30A LOW-PEAK®LP-CC 600V CC 200 Rejection feature 19
(circuits with (time-delay)
heavy in-rush
currents.)
Non-motor loads 0 to 30A LIMITRON®KTK-R 600V CC 200 Very compact (⁄‹Ω£™∑ ≈ 1⁄Ω™∑); 20
(circuits with no (fast-acting) rejection feature.
heavy in-rush
Branch currents.)
Control transformer 0 to 30A TRON®FNQ-R 600V CC 200 Excellent for control 20
circuits and lighting (time-delay) transformer protection.
ballasts; etc.
General purpose; 0 SC SC 480V G 100 Current limiting; 18
i.e., lighting to ⁄‹Ω£™∑ dia. varying
panel boards. 60A lengths per amp rating.
Miscellaneous 0 to ONE-TIME NON 250V H or K510 Forerunners of 14
600A NOS 600V the modern
Plug fuses can 0 FUSTAT®S125V S 10 Base threads of Type S 24
be used for to (dual-element, differ with amp ratings.
branch circuits 30A time-delay) T and W have Edison base.
and small FUSETRON®T125V ** 10 T & S fuses recommended
component (dual-element, for motor circuits. W not 24
protection. time-delay) recommended for circuits
Buss Type W W125V ** 10 with motor loads.
** UL Listed as Edison Base Plug Fuse.
Some ampere ratings are available as UL Class K5 with a 50,000A interrupting rating.
†† RK1 and RK5 fuses fit standard switches, fuseblocks and holders; however, the rejection feature of class R switches and fuseblocks designed specifically for rejection type fuses
(RK1 and RK5) prevent the insertion of the non-rejection fuses (K1, K5, and H).
Bussmann®
1
General Data Selection Chart
200,000A Interrupting Rating (rms symmetrical)
Current Limiting
10,00050,000 AIC
General
Purpose
(non-
current
limiting
fuses)
General Data Dimensions (Inches) Bussmann®
2
A
B
CLASS T
T- Tr o n Fuses
JJN (300V) JJS (600V)
CLASS J
Low-Peak®& Limitron®Fuses
LPJ & JKS (600V)
CLASS L Low-Peak®& Limitron®Fuses
KRP-C, KTU, & KLU (601 - 4000A) (600V)
NOTE: KRP-CL (150A to 600A) fuses
have same dimensions as 601A to
800A case size. KTU (200A to 600A)
have same dimensions, except tube
3lgth. 2dia.; terminal 1fi/•∑ width
≈ 1⁄/¢∑ thick.
CLASS RK5 & RK1
Fusetron®, Low-Peak®&
Limitron®Fuses (250V & 600V)
FRN-R & FRS-R; LPN-RK &
LPS-RK; KTN-R & KTS-R
Basic dimensions are same as Class H (for-
merly NEC) ONE-TIME (NON & NOS) and
SUPERLAG Renewable RES & REN fuses.
NOTE: These fuses can be used to replace
existing Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
250V 600V
Ampere A B A B
⁄Ω¡º-30 2.565.81
35-60 3.815.51.06
Fusetron & Limitron
250V 600V
Ampere A B A B
70-100 5.881.067.881.34
110-200 7.131.569.631.84
225-400 8.632.0611.632.59
450-600 10.382.5913.383.13
Low-Peak
250V 600V
Ampere A B A B
70-100 5.88∑ 1.16∑ 7.88∑ 1.16∑
110-200 7.131.669.631.66
225-400 8.632.3811.632.38
450-600 10.382.8813.382.88
A
B
Bussmann®
General Data Dimensions (Millimeters)
3
A
B
CLASS T
T- Tr o n Fuses
JJN (300V) JJS (600V)
CLASS J
Low-Peak®& Limitron®Fuses
LPJ & JKS (600V)
CLASS L Low-Peak®& Limitron®Fuses
KRP-C, KTU, & KLU (601 - 4000A) (600V)
NOTE: KRP-CL (150A to 600A) fuses
have same dimensions as 601A to
800A case size. KTU (200A to 600A)
have same dimensions, except tube
76.2mm lgth. x 50.8mm dia.; terminal
41,3mm width x 31.8mm thick.
CLASS RK5 & RK1
Fusetron®, Low-Peak®&
Limitron®Fuses (250V & 600V)
FRN-R & FRS-R; LPN-RK &
LPS-RK; KTN-R & KTS-R
Basic dimensions are same as Class H (for-
merly NEC) ONE-TIME (NON & NOS) and
SUPERLAG Renewable RES & REN fuses.
NOTE: These fuses can be used to replace
existing Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
250V 600V
Ampere A B A B
⁄Ω¡º-30 50.8 14.3 127.0 20.6
35-60 76.2 20.6 139.7 27.0
Fusetron & Limitron
250V 600V
Ampere A B A B
70-100 149.2 26.9 200.0 34.0
110-200 181.0 39.6 244.5 46.7
225-400 219.1 52.3 295.3 65.8
450-600 263.5 65.8 339.7 79.5
Low-Peak
250V 600V
Ampere A B A B
70-100 149.2 29.5 200.0 29.5
110-200 181.0 42.2 244.5 42.2
225-400 219.1 60.5 295.3 60.5
450-600 263.5 73.2 339.7 73.2
A
B
KRP-C_SP
Time-Delay 4 seconds (minimum) at 500% rated current
Ampere Ratings: 601-6000 Amps
Voltage Rating: 600 Volts AC (or less), 300 Volts DC for
601-2000 amps.
Interrupting Rating: AC: 300,000A RMS Sym.
DC: 100,000A
Agency Approvals:
UL Listed-Special Purpose (meets all performance
requirements of UL Standard 248-10 for Class L fuses),
Guide JFHR, File E56412
CSA Certified (200,000 AIR), Class 1422-02, File 53787,
Class L per CSA C22.2, No. 248.10
Dimensions: See pages 2-3 for Class L dimensional data.
All-purpose silver linked fuse for both overload and short-
circuit protection for high capacity systems (mains and large
feeders).
Time-delay (minimum of four seconds at five times amp rating)
for close sizing.
Current limiting action of the fuse generally affords consider-
able reduction in bus bracing.
Interrupting rating of 300,000 amperes complies with
NEC Sections 110-9 and 230-65 for todays large capacity
systems.
O-ring seals maximize pressure build-up during current limiting
action and ensure filler retention.
High grade silica-sand filler; accelerates response of fuse to
short-circuits by having quenching effect upon the fuse arc.
99.9% pure silver fuselinks. The high conductivity of silver
gives low watt loss and low operating temperature at normal
current levels; minimizes total clearing I2t fault energy let-thru.
Selective coordination (blackout prevention)
Glass melamine tube.
Silver plated end bells.
Reducers not necessary.
Ordering Information
Catalog Ctn. Weight**
Number Qty. Lbs. Kg.
KRP-C-601SP
KRP-C-650SP
KRP-C-700SP 1 3.75 1.7
KRP-C-750SP
KRP-C-800SP
KRP-C-801SP
KRP-C-900SP
KRP-C-1000SP 1 4.5 2.041
KRP-C-1100SP
KRP-C-1200SP
KRP-C-1350SP
KRP-C-1400SP
KRP-C-1500SP 1 6.50 2.948
KRP-C-1600SP
Catalog Ctn. Weight**
Number Qty. Lbs. Kg.
KRP-C-1800SP
KRP-C-1900SP 1 8.5 3.85
KRP-C-2000SP
KRP-C-2001SP
KRP-C-2400SP 1 17.25 7.824
KRP-C-2500SP
KRP-C-3000SP 1 18.25 8.278
KRP-C-3500SP
KRP-C-3800SP 1 23.50 10.659
KRP-C-4000SP
KRP-C-4500SP 1 29 13.154
KRP-C-5000SP
KRP-C-6000SP 1 36 16.329
*Special purpose rating of 300,000 AIR.
**Weight per carton.
Use KRP-CL for current ratings below 601 Amps.
O-RING SEALS
Formation of arc gas within fuse
body suppresses arcing; lowers
arcing I2t energy. O-ring seals
maximize pressure build-up during
current limiting action. Also volume
of sand is critical. Slight loss can
adversely impact on current limit-
ing action. O-ring seals insure filler
retention. They compensate to a
degree for switchgear misalign-
ment, and expansion and con-
traction of mounting surfaces
with change in load to no-load
conditions.
SAND FILLER
High grade silica-sand filler.
Accelerates response of fuse to
short-circuits by having quenching
effect upon the fuse arc.
Substantially contributes to current
limiting action.
99.9% PURE SILVER
FUSELINKS
Embody “silver-sand” design.
99.9% pure silver links; silica-
sand filler. The high conductivity of
silver gives low watt loss and low
operating temperature at normal
current levels; minimizes total
clearing I2t fault energy let-thru…
state-of-art fuse design. High
degree of current limitation holds
down fault currents and levels of
destructive energy. (Although other
link materials can provide current
limitation, they do not equal that
of silver.)
Bussmann®
4For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Low-Peak®Time-Delay, Class L Fuses
Electrical - Power Fuses
BIF document: 1008 and 1009
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
5
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1016
4
00,000
10,000
1,000
10,000
200,000
100,000
1
00,000
AMPERE
RATING
6,000
5,000
4,000
3,000
2,500
2,000
1,600
1,200
800
601
A
B
1,000
300
100
10
1
.1
.01
1,000
1
0,000
0
0,000
0
0,000
TIME IN SECONDS
800A
120
0
160
0
200
0
250
0
300
0
400
0
500
0
600
0
AMPERE
RATING
KRP-CL
Current Limiting, Time-Delay
Construction: Glass Melamine Tube
Ampere Ratings: 150-600 Amps.
Voltage Rating: 600 Volts AC (or less)
These fuses have the same performance characteristics as
KRP-C fuses. They are used in applications where there is a
need for Class L dimension fuses with 150-600 ampere
ratings. KRP-CL fuses have the same dimensions as
800 ampere Class L fuses.
Dimensions: See pages 2-3 for Class L dimensional data.
Ordering Information
Catalog Number (Symbol & Amps)
KRP-CL-150 KRP-CL-300 KRP-CL-500
KRP-CL-200 KRP-CL-350 KRP-CL-600
KRP-CL-225 KRP-CL-400
KRP-CL-250 KRP-CL-450
Weight of each is 3.75 lbs.
CURRENT IN
AMPERES
PROSPECTIVE SHORT CIRCUIT CURRENT
SYMMETRICAL RMS AMPERES
Current Limitation Curves—KRP-C Time-Current Characteristic Curves—Average Melt
KRP-C
Recommended Fuseblocks for Class L: (6011200 Amps)
Catalog Number Poles
51215 1
51235 3
Use KRP-CL for current ratings below 601 Amps.
Bussmann®
6For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1010 BIF document: 1013
KLU
Time-Delay 5 seconds (minimum) at 500%
rated current
Bolt Mount
Ampere Ratings: 601-4000 Amps.
Voltage Rating: 600 Volts AC (or less)
Interrupting Rating: 200,000A RMS Sym.
Agency Approvals: Std. 248-10, Class L
UL Listed, Guide JDDZ, File E4273
CSA Certified, CSA Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class L dimensional data.
Ordering Information
Catalog Ctn. Weight**
Number Qty. Lbs. Kg.
KLU-601
KLU-650
KLU-700 1 3.75 1.70
KLU-800
KLU-1000 1 4.25 1.93
KLU-1200
KLU-1500 1 6.00 2.72
KLU-1600
Catalog Ctn. Weight**
Number Qty. Lbs. Kg.
KLU-1800
KLU-2000
KLU-2500 1 8.50 3.86
KLU-3000
KLU-4000
**Weight per carton.
KLU Limitron® general purpose copper link fuses.
Current limitingprovides component short-circuit
protection.
Fuse reducers not necessary.
See KRP-CL for current ratings below 601 Amps.
Recommended Fuseblocks: (6011200 Amps)
Catalog Number Poles
51215 1
51235 3
Limitron® Class L Fuses
KTU
Fast Acting, Bolt Mount
Ampere Ratings: 601-6000 Amps.
Voltage Rating: 600 Volts AC (or less)
Interrupting Rating: 200,000 RMS Sym.
Agency Approvals: Std. 248-10, Class L
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class L dimensional data.
Ordering Information
Catalog Ctn. Weight**
Number Qty. Lbs. Kg.
KTU-601
KTU-650
KTU-700 1 3.75 1.70
KTU-750
KTU-800
KTU-801
KTU-900
KTU-1100 1 4.25 1.927
KTU-1200
KTU-1350
KTU-1400
KTU-1500 1 6 2.721
KTU-1600
Catalog Ctn. Weight**
Number Qty. Lbs. Kg.
KTU-1800
KTU-2000 1 8.5 3.855
KTU-2400
KTU-2500 1 17 7.711
KTU-3000 1 17.25 7.824
KTU-3001
KTU-4000 1 24 10.886
KTU-4500 1 31 14.061
KTU-5000
KTU-6000 1 34 15.422
**Weight per carton.
Recommended Fuseblocks for Class L: (6011200 Amps)
Catalog Number Poles
51215 1
51235 3
For protection of circuit breakers with lower interrupting
ratings and non-inductive loads such as lighting and
heating circuits.
99.9% pure silver-links.
Reducers not necessary.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
7
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: (LPN-RK) 1003 (0-60) & 1004 (70-600) BIF document: (LPS-RK) 1001 (0-60) & 1002 (70-600)
Low-Peak®Dual-Element, Time-Delay, Class RK1 Fuses
LPN-RK_SP (250V)
LPS-RK_SP (600V)
Dual-Element, Time-Delay 10 seconds (minimum) at
500% rated current (8 seconds for 0-30A sizes)
Ampere Ratings: ⁄Ω¡º-600 Amps.
Voltage Rating: LPN-RK: 250 Volts AC (or less),
125 Volts DC (⁄Ω¡º-60 A); 250 VDC (70-600 A)
LPS-RK: 600 Volts AC (or less), 300 Volts DC
Current Limiting RK1 Fuse
Interrupting Rating: 300,000A RMS Sym.
(50,000A @ 300V DC)
Agency Approvals:
UL Listed Special Purpose**, Guide JFHR, File E56412
CSA Certified (200,000 AIR), Class RK1 per CSA C22.2,
No. 248.12, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class RK1 dimensional data.
Catalog Numbers (250V AC/125V DC)
LPN-RK-⁄Ω¡ºSP LPN-RK-3⁄Ω™SP LPN-RK-60SP
LPN-RK-⁄fiΩ¡ººSP LPN-RK-4SP LPN-RK-70SP
LPN-RK-¤Ω¡ºSP LPN-RK-4⁄Ω™SP LPN-RK-80SP
LPN-RK-‹Ω¡ºSP LPN-RK-5SP LPN-RK-90SP
LPN-RK-›Ω¡ºSP LPN-RK-5flΩ¡ºSP LPN-RK-100SP
LPN-RK-⁄Ω™SP LPN-RK-6SP LPN-RK-110SP
LPN-RK-flΩ¡ºSP LPN-RK-6⁄Ω¢SP LPN-RK-125SP
LPN-RK-°Ω¡ºSP LPN-RK-8SP LPN-RK-150SP
LPN-RK-1SP LPN-RK-9SP LPN-RK-175SP
LPN-RK-1⁄Ω•SP LPN-RK-10SP LPN-RK-200SP
LPN-RK-1⁄Ω¢SP LPN-RK-12SP LPN-RK-225SP
LPN-RK-1›Ω¡ºSP LPN-RK-15SP LPN-RK-250SP
LPN-RK-1flΩ¡ºSP LPN-RK-17⁄Ω™SP LPN-RK-300SP
LPN-RK-1°Ω¡ºSP LPN-RK-20SP LPN-RK-350SP
LPN-RK-2SP LPN-RK-25SP LPN-RK-400SP
LPN-RK-2⁄Ω¢SP LPN-RK-30SP LPN-RK-450SP
LPN-RK-2⁄Ω™SP LPN-RK-35SP LPN-RK-500SP
LPN-RK-2°Ω¡ºSP LPN-RK-40SP LPN-RK-600SP
LPN-RK-3SP LPN-RK-45SP
LPN-RK-3¤Ω¡ºSP LPN-RK-50SP
**Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses.
0-60 Amp fuses available with Albaloy plate option.
70-600 Amp fuses available with Tin plate option.
Current limitation for maximum short-circuit protection.
High speed of response is highly sensitive to fault currents, but
insensitive to starting current and transient surges.
Provides long time-delay for temporary motor start-up.
Time-delay permits 125% FLA sizing for back-up, motor running
protection.
Catalog Numbers (600V AC/300V DC)
LPS-RK-⁄Ω¡ºSP LPS-RK-2⁄Ω™SP LPS-RK-12SP LPS-RK-110SP
LPS-RK-¤Ω¡ºSP LPS-RK-2°Ω¡ºSP LPS-RK-15SP LPS-RK-125SP
LPS-RK-‹Ω¡ºSP LPS-RK-3SP LPS-RK-17⁄Ω™SP LPS-RK-150SP
LPS-RK-›Ω¡ºSP LPS-RK-3¤Ω¡ºSP LPS-RK-20SP LPS-RK-175SP
LPS-RK-⁄Ω™SP LPS-RK-3⁄Ω™SP LPS-RK-25SP LPS-RK-200SP
LPS-RK-flꭧSP LPS-RK-4SP LPS-RK-30SP LPS-RK-225SP
LPS-RK-°Ω¡ºSP LPS-RK-4⁄Ω™SP LPS-RK-35SP LPS-RK-250SP
LPS-RK-1SP LPS-RK-5SP LPS-RK-40SP LPS-RK-300SP
LPS-RK-1⁄Ω•SP LPS-RK-5flΩ¡ºSP LPS-RK-45SP LPS-RK-350SP
LPS-RK-1⁄Ω¢SP LPS-RK-6SP LPS-RK-50SP LPS-RK-400SP
LPS-RK-1›Ω¡ºSP LPS-RK-6⁄Ω¢SP LPS-RK-60SP LPS-RK-450SP
LPS-RK-1⁄Ω™SP LPS-RK-7SP LPS-RK-70SP LPS-RK-500SP
LPS-RK-1flꭧSP LPS-RK-8SP LPS-RK-80SP LPS-RK-600SP
LPS-RK-1°Ω¡ºSP LPS-RK-9SP LPS-RK-90SP
LPS-RK-2⁄Ω¢SP LPS-RK-10SP LPS-RK-100SP
**Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses.
Carton Quantity and Weight
LPN-RK (250 Volts AC) LPS-RK (600 Volts AC)
Ampere Carton Weight* Carton Weight*
Ratings Qty. Lbs. Kg Qty. Lbs. Kg
0-30 10 0.5 0.227 10 1.6 0.725
35-60 10 1.2 0.544 10 2.6 1.178
70-100 5 1.5 0.680 5 4.0 1.814
110-200 1 0.69 0.313 1 2.0 0.906
225-400 1 1.75 0.793 1 4.6 2.086
450-600 1 3.25 1.474 1 5.6 2.540
*Weight per carton.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
8For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: (LPN-RK) 1003 (0-60) & 1004 (70-600),
1110 (Fuseblock)
Low-Peak®Dual-Element, Time-Delay, Class RK1 Fuses
BIF document: (LPS-RK) 1001 (0-60) & 1002
(70-600), 1111 (600V Fuseblock)
A
B
60
0
40
0
20
0
10
0
AMPERE
RATIN
400,000
100,000
10,000
1,000
1,000
10,000
100,000
200,000
RMS SYMMETRICAL CURRENTS IN AMPERES
A–B=ASYMMETRICAL AVAILABLE PEAK (2.3 X SYMM RMS AMPS)
INSTANTANEOUS
PEAK
LET
-
THRU
CURRENT
IN
AMPS
60
30
60
30
A
B
60
0
40
0
20
0
AMPERE
RATING
400,000
100,000
10,000
1,000
1,000
10,000
100,000
200,000
INSTANTANEOUS
PEAK
LET
-
THRU
CURRENT
IN
AMPS
10
0
RMS SYMMETRICAL CURRENTS IN AMPERES
A–B=ASYMMETRICAL AVAILABLE PEAK (2.3 X SYMM RMS AMPS)
Recommended Fuseblocks for Class RK1 fuses
Terminal Type (Suffix No.)
Catalog Screw w/ Box Lug w/ ⁄Ω¢∑
Number Pres. Clip Quick-
Amps Poles (250V) (600V) Plate CU only Connect
⁄Ω¡º 1 R25030-1 R60030-1 SR PR CR COR QR**
to 2 R25030-2 R60030-2 SR PR CR COR QR**
30 3 R25030-3 R60030-3 SR PR CR COR QR**
1 1 R25060-1 R60060-1 SR* PR CR COR
to 2 R25060-2 R60060-2 SR* PR CR COR
60 3 R25060-3 R60060-3 SR* PR CR COR
61 1 R25100-1 R60100-1 ——CR COR
to 2 R25100-2 R60100-2 ——CR COR
100 3 R25100-3 R60100-3 ——CR COR
to 200 1 R25200-1 R60200-1 ——CR COR
R25200-3 R60200-3 ——CR ——
to 400 1 R25400-1 R60400-1 ——CR* COR*
R25400-3 R60400-3 ——CR ——
to 600 1 R25600-1 R60600-1 ——CR ——
R25600-3 R60600-3 ——CR ——
*UL Recognized, No CSA Certification.
**Quick connect not available on 600V blocks.
Current Limitation CurvesLPN-RK (250V)
Current Limitation CurvesLPS-RK (600V)
Bussmann®
9
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: (LPS-RK) 1001 (0-60) & 1002 (70-600)BIF document: (LPN-RK) 1003 (0-60) & 1004 (70-600)
Low-Peak®Dual-Element, Time-Delay, Class RK1 Fuses
.1
.2
.15
.3
.4
.6 .5
.8
11.25
1.6
22.5
3.2
4
56.25
8
10
12
AMPERE RATING
300
100
10
1
.1
.01
.1
1
1
0
0
0
0
0
TIME IN SECONDS
1/10
15/100
2/10
4/10
6/10
16/10
8/10
1
2
4
5
8
12
10
11/4
21/232/10
61/4
1/2
3/10
Time-Current Characteristic CurvesAverage Melt
LPN-RK
250V LPS-RK
600V
LPN-RK
250V LPS-RK
600V
TIME IN SECONDS
TIME IN SECONDS
TIME IN SECONDS
CURRENT IN AMPERES
CURRENT IN AMPERES
CURRENT IN AMPERES
CURRENT IN AMPERES
AMPERE
RATING
AMPERE
RATING
AMPERE
RATING
Bussmann®
10 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1019 (0-60), 1020 (70-600) & 1110 (Fuseblock)
Fusetron®Dual-Element, Time-Delay, Class RK5 Fuses
FRN-R (250V)
Dual-Element, Time-Delay 10 seconds (minimum) at
500% rated current
Ampere Ratings: ⁄Ω¡º-600 Amps.
Voltage Rating: 250 Volts AC (or less), 125 Volts DC
Current Limiting RK5 Fuse
Interrupting Rating: 200,000A RMS Sym.
(20,000A @ 125V DC)
Agency Approvals: Std. 248-12, Class RK5
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-01, File 53787
Dimensions: See pages 2-3 for Class RK5 dimensional data.
Catalog Numbers (250V AC/125V DC)
FRN-R-⁄Ω¡º FRN-R-2 FRN-R-10 FRN-R-100
FRN-R-⁄Ω• FRN-R-2⁄Ω¢ FRN-R-12 FRN-R-110
FRN-R-⁄fiΩ¡ºº FRN-R-2⁄Ω™ FRN-R-15 FRN-R-125
FRN-R-¤Ω¡º FRN-R-2°Ω¡º FRN-R-17⁄Ω™ FRN-R-150
FRN-R-⁄Ω¢ FRN-R-3 FRN-R-20 FRN-R-175
FRN-R-‹Ω¡º FRN-R-3¤Ω¡º FRN-R-25 FRN-R-200
FRN-R-›Ω¡º FRN-R-3⁄Ω™ FRN-R-30 FRN-R-225
FRN-R-⁄Ω™ FRN-R-4 FRN-R-35 FRN-R-250
FRN-R-flΩ¡º FRN-R-4⁄Ω™ FRN-R-40 FRN-R-300
FRN-R-°Ω¡º FRN-R-5 FRN-R-45 FRN-R-350
FRN-R-1 FRN-R-5flꭧ FRN-R-50 FRN-R-400
FRN-R-1⁄Ω• FRN-R-6 FRN-R-60 FRN-R-450
FRN-R-1⁄Ω¢ FRN-R-6⁄Ω¢ FRN-R-70 FRN-R-500
FRN-R-1›Ω¡º FRN-R-7 FRN-R-75 FRN-R-600
FRN-R-1⁄Ω™ FRN-R-7⁄Ω™ FRN-R-80
FRN-R-1flꭧ FRN-R-8 FRN-R-85
FRN-R-1°Ω¡º FRN-R-9 FRN-R-90
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
0-15 10 0.40 0.181
17.5-30 10 .50 0.227
35-60 10 1.00 0.453
70-100 5 1.5 0.680
101-200 1 0.77 0.349
201-400 1 1.52 0.689
401-600 1 2.94 1.334
*Weight per carton.
Provides motor overload, ground fault and short-circuit
protection.
Helps protect motors against burnout from overloads.
Helps protect motors against burnout from single phasing
on three phase systems.
Simplifies and improves blackout prevention (selective
coordination).
Fuse Reducers For Class R Fuses
Desired Catalog Number
Equipment Fuse (Case) (Pairs)
Fuse Clips Size 250V
60A 30A No. 263-R
100A 30A No. 213-R
60A No. 216-R
200A 60A No. 226-R
100A No. 2621-R
100A No. 2641-R
400A 200A No. 242-R
100A No. 2661-R
600A 200A No. 2662-R
400A No. 2664-R*
*Single reducer only (pair not required).
Fuseblocks for Class R 250V Fuses
(Clip Retaining Spring Standard, Suffix R)
Terminal Type (Suffix No.)
Basic Screw w/ Box Lug w/ ⁄Ω¢∑
Catalog Pres. Clip Quick-
Amps Poles Number Plate CU only Connect
⁄Ω¡º 1 R25030-1 SR PR CR COR QR
to 2 R25030-2 SR PR CR COR QR
30 3 R25030-3 SR PR CR COR QR
31 1 R25060-1 SR CR COR
to 2 R25060-2 SR CR COR
60 3 R25060-3 SR CR COR
70 1 R25100-1 ——CR COR
to 2 R25100-2 ——CR COR
100 3 R25100-3 ——CR COR
to 200 1 R25200-1 ——CR ——
3 R25200-3 ——CR ——
to 400 1 R25400-1 ——CR ——
3 R25400-3 ——CR ——
to 600 1 R25600-1 ——CR ——
3 R25600-3 ——CR ——
Time-Current and Current Limitation Curves located on
page 203.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
11
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1017 (0-60), 1018 (70-600) & 1111 (Fuseblock)
Fusetron®Dual-Element, Time-Delay, Class RK5 Fuses
FRS-R (600V)
Dual-Element, Time-Delay 10 seconds (minimum) at
500% rated current
Ampere Ratings: ⁄Ω¡º-600 Amps.
Voltage Rating: 600 Volts AC (or less), 300 Volts DC
Current Limiting RK5 Fuse
Interrupting Rating: 200,000A RMS Sym.
(20,000A @ 300V DC)
Agency Approvals: Std. 248-12, Class RK5
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class RK5 dimensional data.
Catalog Numbers (600V AC/ 300V DC)
FRS-R-⁄Ω¡º FRS-R-2 FRS-R-10 FRS-R-100
FRS-R-⁄Ω• FRS-R-2⁄Ω¢ FRS-R-12 FRS-R-110
FRS-R-⁄fiΩ¡ºº FRS-R-2⁄Ω™ FRS-R-15 FRS-R-125
FRS-R-¤Ω¡º FRS-R-2°Ω¡º FRS-R-17⁄Ω™ FRS-R-150
FRS-R-⁄Ω¢ FRS-R-3 FRS-R-20 FRS-R-175
FRS-R-‹Ω¡º FRS-R-3¤Ω¡º FRS-R-25 FRS-R-200
FRS-R-›Ω¡º FRS-R-3⁄Ω™ FRS-R-30 FRS-R-225
FRS-R-⁄Ω™ FRS-R-4 FRS-R-35 FRS-R-250
FRS-R-flΩ¡º FRS-R-4⁄Ω™ FRS-R-40 FRS-R-275
FRS-R-°Ω¡º FRS-R-5 FRS-R-45 FRS-R-300
FRS-R-1 FRS-R-5flꭧ FRS-R-50 FRS-R-325
FRS-R-1⁄Ω• FRS-R-6 FRS-R-60 FRS-R-350
FRS-R-1⁄Ω¢ FRS-R-6⁄Ω¢ FRS-R-70 FRS-R-400
FRS-R-1›Ω¡º FRS-R-7 FRS-R-75 FRS-R-450
FRS-R-1⁄Ω™ FRS-R-7⁄Ω™ FRS-R-80 FRS-R-500
FRS-R-1flꭧ FRS-R-8 FRS-R-85 FRS-R-600
FRS-R-1°Ω¡º FRS-R-9 FRS-R-90
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
0-15 10 0.40 0.181
17.5-30 10 0.50 0.227
35-60 10 3.10 1.406
65-100 1 0.54 0.245
101-200 1 1.22 0.544
201-400 1 3.00 1.359
401-600 1 5.00 2.268
*Weight per carton.
Fuse Reducers For Class R Fuses
Desired Catalog Number
Equipment Fuse (Case) (Pairs)
Fuse Clips Size 600V
60A 30A No. 663-R
100A 30A No. 216-R
60A No. 616-R
200A 60A No. 626-R
100A No. 2621-R
400A 100A No. 2641-R
200A No. 642-R
100A No. 2661-R
600A 200A No. 2662-R
400A No. 2664-R*
*Single reducer only (pair not required).
Fuseblocks for Class R 600V Fuses
(Clip Retaining Spring Standard, Suffix R)
Terminal Type (Suffix No.)
Basic Screw w/ Box Lug w/
Catalog Pres. Clip
Amps Poles Number Plate CU only
⁄Ω¡º 1 R60030-1 SR PR CR COR
to 2 R60030-2 SR PR CR COR
30 3 R60030-3 SR PR CR COR
31 1 R60060-1 SR CR COR
to 2 R60060-2 SR CR COR
60 3 R60060-3 SR CR COR
65 1 R60100-1 ——CR COR
to 2 R60100-2 ——CR COR
100 3 R60100-3 ——CR COR
to 200 1 R60200-1 ——CR
R60200-3 ——CR
to 400 1 R60400-1 ——CR
R60400-3 ——CR
to 600 1 R60600-1 ——CR
R60600-3 ——CR
Time-Current and Current Limitation Curves located on
page 204.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
12 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1021 (0-600) BIF document: 1022 (0-600)
Dura-LagDual-Element, Time-Delay, Class RK5 Fuses
DLN-R (250V)
Dual-Element, Time-Delay 10 seconds (minimum) at
500% rated current
Ampere Ratings: 1-600 Amps.
Voltage Rating: 250 Volts AC (or less), 125V DC
Current Limiting RK5 Fuses
Interrupting Rating: 200,000A RMS Sym.
(20,000A @125V DC)
Agency Approvals: Std. 248-12, Class RK5
UL Listed, Guide JDDZ, File E4273
CSA C22.2, No. 106-HRCI-R, File 53787
Dimensions: See pages 2-3 for Class RK5 dimensional data.
Catalog Numbers (250V AC/125V DC)
DLN-R-1 DLN-R-15 DLN-R-100
DLN-R-2 DLN-R-20 DLN-R-125
DLN-R-2⁄Ω™ DLN-R-25 DLN-R-150
DLN-R-3 DLN-R-30 DLN-R-175
DLN-R-3¤Ω¡º DLN-R-35 DLN-R-200
DLN-R-4 DLN-R-40 DLN-R-225
DLN-R-5 DLN-R-45 DLN-R-250
DLN-R-6 DLN-R-50 DLN-R-300
DLN-R-6⁄Ω¢ DLN-R-60 DLN-R-400
DLN-R-8 DLN-R-70 DLN-R-600
DLN-R-10 DLN-R-80
DLN-R-12 DLN-R-90
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
⁄Ω¡º-30 10 0.56 0.252
35-60 10 1.38 0.621
70-100 5 1.56 0.702
110-200 1 0.90 0.405
225-400 1 1.80 0.810
450-600 1 3.30 1.485
*Weight per carton.
Recommended Fuseblocks for Class R 250V Fuses
See pages 66-67.
DLS-R (600V)
Dual-Element, Time-Delay 10 seconds (minimum) at
500% rated current
Ampere Ratings: 1-600 Amps.
Voltage Rating: 600 Volts AC (or less), 300V DC
Current Limiting RK5 Fuses
Interrupting Rating: 200,000A RMS Sym.,
(20,000A @ 300V DC)
Agency Approvals: Std. 248-12, Class RK5
UL Listed, Guide JDDZ, File E4273
CSA C22.2, No. 106-HRCI-R
Dimensions: See pages 2-3 for Class RK5 dimensional data.
Catalog Numbers (600V AC/300V DC)
DLS-R-1 DLS-R-12 DLS-R-100
DLS-R-1flꭧ DLS-R-15 DLS-R-110
DLS-R-2 DLS-R-17⁄Ω™ DLS-R-125
DLS-R-2⁄Ω™ DLS-R-20 DLS-R-150
DLS-R-3 DLS-R-25 DLS-R-175
DLS-R-3⁄Ω™ DLS-R-30 DLS-R-200
DLS-R-4 DLS-R-35 DLS-R-225
DLS-R-5 DLS-R-40 DLS-R-250
DLS-R-6 DLS-R-45 DLS-R-300
DLS-R-6⁄Ω¢ DLS-R-50 DLS-R-350
DLS-R-7 DLS-R-60 DLS-R-400
DLS-R-8 DLS-R-70 DLS-R-500
DLS-R-9 DLS-R-80 DLS-R-600
DLS-R-10 DLS-R-90
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
⁄Ω¡º-30 10 1.62 0.729
35-60 10 3.00 1.35
70-100 5 3.00 1.35
110-200 1 1.41 0.635
225-400 1 3.13 1.409
450-600 1 5.28 2.376
*Weight per carton.
Recommended Fuseblocks for Class R 600V Fuses
See pages 68-69.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information. CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
KTS-R (600V)
Fast Acting
Ampere Ratings: 1-600 Amps.
Voltage Rating: 600 Volts AC (or less).
Current Limiting RK1 Fuse (curves on page 206)
Interrupting Rating: 200,000A RMS Sym.
Agency Approvals: Std. 248-12, Class RK1
UL Listed, Guide JDDZ, File E54273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class RK1 dimensional data.
Catalog Numbers (600V AC)
KTS-R-1 KTS-R-30 KTS-R-125
KTS-R-2 KTS-R-35 KTS-R-150
KTS-R-3 KTS-R-40 KTS-R-175
KTS-R-4 KTS-R-45 KTS-R-200
KTS-R-5 KTS-R-50 KTS-R-225
KTS-R-6 KTS-R-60 KTS-R-250
KTS-R-8 KTS-R-70 KTS-R-300
KTS-R-10 KTS-R-75 KTS-R-350
KTS-R-12 KTS-R-80 KTS-R-400
KTS-R-15 KTS-R-90 KTS-R-450
KTS-R-20 KTS-R-100 KTS-R-500
KTS-R-25 KTS-R-110 KTS-R-600
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
1-30 10 1.45 0.657
40-60 10 2.63 1.262
70-100 1 0.5 0.226
110-200 1 1.4 0.634
225-400 1 2.75 1.246
450-600 1 4.25 1.925
*Weight per carton.
Recommended Fuseblocks for Class R 600V fuses
See pages 68-69.
Bussmann®
13
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1043 (0-600) BIF document: 1044 (0-600)
Limitron®Fast Acting, Class RK1 Fuses
KTN-R (250V)
Fast Acting
Ampere Ratings: 1-600 Amps.
Voltage Rating: 250 Volts AC (or less).
Current Limiting RK1 Fuse (curves on page 205)
Interrupting Rating: 200,000A RMS Sym.
Agency Approvals: Std. 248-12, Class RK1
UL Listed, Guide JDDZ, File E54273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class RK1 dimensional data.
Catalog Numbers (250V AC)
KTN-R-1 KTN-R-30 KTN-R-125
KTN-R-2 KTN-R-35 KTN-R-150
KTN-R-3 KTN-R-40 KTN-R-175
KTN-R-4 KTN-R-45 KTN-R-200
KTN-R-5 KTN-R-50 KTN-R-225
KTN-R-6 KTN-R-60 KTN-R-250
KTN-R-8 KTN-R-70 KTN-R-300
KTN-R-10 KTN-R-75 KTN-R-350
KTN-R-12 KTN-R-80 KTN-R-400
KTN-R-15 KTN-R-90 KTN-R-450
KTN-R-20 KTN-R-100 KTN-R-500
KTN-R-25 KTN-R-110 KTN-R-600
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
1-30 10 .45 0.204
40-60 10 1.82 0.824
70-100 5 1.85 0.838
110-200 1 1.05 0.476
225-400 1 2.38 1.078
450-600 1 3.50 1.587
*Weight per carton.
Recommended Fuseblocks for Class R 250V Fuses
See pages 66-67.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Recommended Fuse Reducers
250 Volt 600 Volt
Cat. Weight Cat. Weight
Clip Fuse No. Carton* Clip Fuse No. Carton*
Size Size (Pair) (lbs) Size Size (Pair) (lbs)
60A 30A No. 263 0.38 60A 30A No. 663 1.00
100A 30A No. 213 1.73 100A 30A No. 216 1.73
100A 60A No. 216 1.73 100A 60A No. 616 1.85
200A 60A No. 226 3.00 200A 60A No. 626 3.33
200A 100A No. 2621 1.63 200A 100A No. 2621 1.63
400A 100 No. 2641 4.90 400A 100 No. 2641 4.90
400A 200A No. 2642 3.50 400A 200A No. 2642 3.50
600A 100A No. 2661 8.70 600A 100A No. 2661 8.70
600A 200A No. 2662 6.85 600A 200A No. 2662 6.85
600A 400A No. 2664 4.45 600A 400A No. 2664 4.45
*Carton quantity10 pair.
Catalog Numbers (600V AC)
NOS-1 NOS-12 NOS-70 NOS-200
NOS-2 NOS-15 NOS-75 NOS-225
NOS-3 NOS-20 NOS-80 NOS-250
NOS-4 NOS-25 NOS-90 NOS-300
NOS-5 NOS-30 NOS-100 NOS-350
NOS-6 NOS-35 NOS-110 NOS-400
NOS-7 NOS-40 NOS-125 NOS-450
NOS-8 NOS-45 NOS-150 NOS-500
NOS-9 NOS-50 NOS-175 NOS-600
NOS-10 NOS-60 ——
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
NOS 1-30 10 1.45 0.657
NOS 35-60 10 2.6 1.179
NOS 70-100 5 2.80 1.270
NOS 110-200 1 1.24 0.562
NOS 225-400 1 3.03 1.374
NOS 450-600 1 4.63 2.100
*Weight per carton.
NON and NOS
General Purpose Application
Non-Current Limiting
Ampere Ratings: ⁄Ω•-600 Amps.
Voltage Rating: NON: 250 Volts AC, 125 Volts DC (0-100A);
NOS: 600 Volts AC
Interrupting Rating: 50,000A RMS Sym. (1-60A),
10,000A RMS Sym. (65-600A)
10,000A @ 125V DC (NON 0-100A)
Agency Approvals:
UL Listed 250V: Class K5 (0-60A), Std. 248-9
Class H (65-600A), Std. 248-6
600V: Class K5 (0-60A), Std. 248-9
Class H (70-600A,) Std. 248-6
Guide JDDZ, File E4273
CSA Certified 250V: (0-12, 65-600)
600V: (0-600)
Class 1421-01, File 53787
Dimensions: See pages 2-3 for dimensional data under
Class RK5/RK1.
Catalog Numbers (250V AC)
NON-⁄Ω• NON-5 NON-40 NON-175
NON-⁄Ω™ NON-6 NON-45 NON-200
NON-‹Ω¢ NON-6⁄Ω¢ NON-50 NON-225
NON-°Ω¡º NON-7 NON-60 NON-250
NON-1 NON-8 NON-65 NON-300
NON-1⁄Ω¢ NON-9 NON-70 NON-350
NON-1⁄Ω™ NON-10 NON-75 NON-400
NON-1flꭧ NON-12 NON-80 NON-450
NON-2 NON-15 NON-90 NON-500
NON-2⁄Ω™ NON-20 NON-100 NON-600
NON-3 NON-25 NON-110
NON-3¤Ω¡º NON-30 NON-125
NON-4 NON-35 NON-150
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
NON ⁄Ω•-30 10 0.38 0.172
NON 35-60 10 1.00 0.453
NON 65-100 5 0.79 0.358
NON 110-200 1 0.79 0.358
NON 225-400 1 1.65 0.748
NON 450-600 1 2.76 1.25
Bussmann®
14 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1030
One-Time General Purpose Fuses
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Catalog Symbol & Current Ratings
Symbol Rating Class Volt IR
NON 0-60 K5 250AC 50,000
70-600 H 250AC 10,000
0-100 H 125DC 10,000
NOS 0-60 K5 600 50,000
70-600 H 600 10,000
*Weight per carton.
Bussmann®
15
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1006 (0-60) and 1007 (70-600)
Low-Peak®Dual-Element, Time-Delay, Class J Fuses
LPJ_SP
Dual-Element,
Time-Delay
10 seconds (minimum) at
500% rated current
Ampere Ratings:
1-600 Amps.
Voltage Rating:
600 Volts AC (or less),
300V DC (110-200A)
Current Limiting
Interrupting Rating:
AC 300,000A RMS Sym.
DC 20,000A
Agency Approvals:
UL Listed - Special Purpose**, Guide JFHR, File E56412
CSA Certified (200,000 AIR) Class J per CSA-22.2 No. 248.8,
Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class J dimensional data.
Catalog Numbers
LPJ-1SP LPJ-4⁄Ω™SP LPJ-25SP LPJ-125SP
LPJ-1⁄Ω¢SP LPJ-5SP LPJ-30SP LPJ-150SP
LPJ-1flꭧSP LPJ-5flꭧSP LPJ-35SP LPJ-175SP
LPJ-1°Ω¡ºSP LPJ-6SP LPJ-40SP LPJ-200SP
LPJ-2SP LPJ-7SP LPJ-45SP LPJ-225SP
LPJ-2⁄Ω¢SP LPJ-8SP LPJ-50SP LPJ-250SP
LPJ-2⁄Ω™SP LPJ-9SP LPJ-60SP LPJ-300SP
LPJ-2°Ω¡ºSP LPJ-10SP LPJ-70SP LPJ-350SP
LPJ-3SP LPJ-12SP LPJ-80SP LPJ-400SP
LPJ-3¤Ω¡ºSP LPJ-15SP LPJ-90SP LPJ-450SP
LPJ-3⁄Ω™SP LPJ-17⁄Ω™SP LPJ-100SP LPJ-500SP
LPJ-4SP LPJ-20SP LPJ-110SP LPJ-600SP
**Meets all performance requirements of UL Standard 248-8 for Class J fuses.
Available with silver plated terminals. Add SP/ in front of part number.
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
0-30 10 1.09 0.49
35-60 10 1.78 0.81
70-100 5 1.69 0.77
110-200 5 4.21 1.91
225-400 1 1.67 0.76
450-600 1 2.80 0.27
*Weight per carton.
See pages 70-71 for Class J recommended fuseblocks.
A
MPERE
RATING
1A
3A
5A
10A
15A
20A
30A
40A
50A
60A
300
100
10
1
.1
.01
TIME IN SECONDS
10 000
1,000
100
10
1
RMS SYMMETRICAL CURRENT IN AMPERES
100
125
200
225
400
600
INSTANTANEOUS PEAK LET-THRU CURRENT IN AMPS
100,000
10,000
1,000
100
B
A
100
000
000
000
000
60
0
40
0
20
0
10
0
60
50
40
30
20
15
AMPERE
RATIN
LPJ Current Limitation Curves
Time-Current Classification CurvesAverage Melt
Current Limitation Curves
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
16 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1026 (1-60A), 1027 (70-600A)
Limitron®Quick Acting, Class J Fuses
JKS
Quick Acting
Ampere Ratings: 1-600 Amps.
Voltage Rating: 600 Volts AC (or less)
Current Limiting
Interrupting Rating: 200,000A RMS Sym.
Agency Approvals: Std. 248-8, Class J
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class J dimensional data.
Catalog Numbers
JKS-1 JKS-15 JKS-70 JKS-225
JKS-2 JKS-20 JKS-80 JKS-250
JKS-3 JKS-25 JKS-90 JKS-300
JKS-4 JKS-30 JKS-100 JKS-350
JKS-5 JKS-35 JKS-110 JKS-400
JKS-6 JKS-40 JKS-125 JKS-450
JKS-8 JKS-45 JKS-150 JKS-500
JKS-10 JKS-50 JKS-175 JKS-600
JKS-12 JKS-60 JKS-200
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
1-30 10 0.95 0.43
35-60 10 1.175 0.53
70-100 5 0.28 0.13
110-200 1 0.86 0.39
225-400 1 1.78 0.81
450-600 1 3.07 1.39
*Weight per carton.
Recommended Fuseblocks for Class J Fuses
Pyramid J Fuseblock;
30A, 600V; 3-Pole; Panel or 35mm DIN-Rail Mount
Mounting Catalog Numbers
Screws with Box
Pressure Aluminum Copper
Plate Only
Panel JP60030-3PR JP60030-3CR JP60030-3COR
(#10-14 Cu (#2-8 Al or (#2-14 Cu)
Wire) #2-14 Cu)
With JP60030-3PRA JP60030-CRA JP60030-CORA
DIN-Rail (#10-14 Cu (#2-8 Al or (#2-14 Cu)
Adapter* Wire) #2-14 Cu)
*Adapter Only: Cat. No. JPA-3 (for use with 35mm symmetrical DIN-Rail).
Standard Class J Fuseblocks
Catalog Numbers
Pressure Box Box Lug w/ Max. Wire
Amps Screw Plate Lug Retaining Clip Size
1 J60030-1S J60030-1P J60030-1C J60030-1CR
S, P, #10 Cu
1-30 2 J60030-2S J60030-2P J60030-2C J60030-2CR
3 J60030-3S J60030-3P J60030-3C J60030-3CR
C #2 Cu Al
1——J60060-1C J60060-1CR
35-60 2 ——J60060-2C J60060-2CR #2 Cu Al
3——J60060-3C J60060-3CR
70-100 3 ———J60100-3CR 1/0 Cu Al
110-200 1———J60200-1CR 250 MCM Cu Al
3———J60200-3CR
225-400 1———J60400-1CR 500 MCM Cu Al
3———J60400-3CR
450-600 1———J60600-1CR (2) 500 MCM Cu Al
3———J60600-3CR
Fuse Reducers for J Dimension Fuses
Cat. Weight Cat. Weight
Clip Fuse No. Carton* Clip Fuse No. Carton*
Size Size (Pair) (lbs) Size Size (Pair) (lbs)
60A 30A J63 0.38 400A 100A J41 4.90
100A 30A J13 1.73 400A 200A J42 2.75
100A 60A J16 1.85 600A 400A J64 3.55
200A 60A J26 2.55 600A 200A J62 3.55
200A 100A J21 1.36 ——
*Carton quantity10 pair.
Poles
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
BIF document: 1108
BIF document: 1114
Bussmann®
17
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
T- Tro n ®Very Fast Acting, Class T Fuses
JJN
Very Fast Acting
Ampere Ratings: 1-1200 Amps.
Voltage Rating: 300 Volts AC
(or less), (15-600A 160V DC)
Current Limiting (curves on
page 208)
Interrupting Rating: 200,000A
RMS Sym. (20,000A DC @ 160V DC)
Agency Approvals: Std. 248-15, Class T
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class T dimensional data.
Catalog Numbers
JJN-1 JJN-35 JJN-110 JJN-400
JJN-2 JJN-40 JJN-125 JJN-450
JJN-3 JJN-45 JJN-150 JJN-500
JJN-6 JJN-50 JJN-175 JJN-600
JJN-10 JJN-60 JJN-200 JJN-700
JJN-15 JJN-70 JJN-225 JJN-800
JJN-20 JJN-80 JJN-250 JJN-1000
JJN-25 JJN-90 JJN-300 JJN-1200
JJN-30 JJN-100 JJN-350
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
1-30 10 0.12 0.054
35-60 10 0.23 0.104
70-100 5 0.36 0.163
110-200 1 0.14 0.063
225-400 1 0.25 0.113
450-600 1 0.44 0.200
700-800 1 0.80 0.363
1000-1200 1 1.45 0.658
*Weight per carton.
JJS
Very Fast Acting
Ampere Ratings: 1-800 Amps.
Voltage Rating: 600 Volts AC
(or less)
Current Limiting (curves on
page 208)
Interrupting Rating: 200,000A
RMS Sym.
Agency Approvals: Std. 248-15, Class T
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-02, File 53787
Dimensions: See pages 2-3 for Class T dimensional data.
Catalog Numbers
JJS-1 JJS-30 JJS-90 JJS-250
JJS-2 JJS-35 JJS-100 JJS-300
JJS-3 JJS-40 JJS-110 JJS-350
JJS-6 JJS-45 JJS-125 JJS-400
JJS-10 JJS-50 JJS-150 JJS-450
JJS-15 JJS-60 JJS-175 JJS-500
JJS-20 JJS-70 JJS-200 JJS-600
JJS-25 JJS-80 JJS-225 JJS-800
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
1-30 10 0.33 0.149
35-60 10 0.82 0.371
70-100 5 0.51 0.231
110-200 1 0.192 0.087
225-400 1 0.46 0.208
450-600 1 0.85 0.385
800 1 1.65 0.748
*Weight per carton.
Standard Class T Fuseblocks (300V) Catalog Data
Catalog Numbers
Amps Poles Screw Box Lug
⁄Ω™ 2 T30030-2SR T30030-2CR
to 3 T30030-3SR T30030-3CR
30 4 T30030-4SR T30030-4CR
31 2 T30060-2SR T30060-2CR
to 3 T30060-3SR T30060-3CR
60 4 T30060-4SR T30060-4CR
61 1 T30100-1CR
to 2 T30100-2CR
100 3 T30100-3CR
101 to 1 T30200-1C
200 3 T30200-3C
201 to 400 1 T30400-1C
401 to 600 1 T30600-1C
Standard Class T Fuseblocks (600V) Catalog Data
Catalog Numbers
Amps Poles Screw Box Lug
⁄Ω™ 1 T60030-1SR T60030-1CR
to 2 T60030-2SR T60030-2CR
30 3 T60030-3SR T60030-3CR
31 1 T60060-1SR T60060-1CR
to 2 T60060-2SR T60060-2CR
60 3 T60060-3SR T60060-3CR
61 1 T60100-1C
to 2 T60100-2C
100 3 T60100-3C
101 to 1 T60200-1C
200 3 1B0089
201 to 400 1 T60400-1C
401 to 600 1 T60600-1C
BIF document: 1025 BIF document: 1029
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 VAC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
BIF document: 1115 (300V Fuseblock) and 1116 (600V Fuseblock)
Bussmann®
18 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1024 (0-60) and 1106 (Fuseblock)
Time-Delay Class G Fuses
SC
Fast Acting (0-6A), Class G
Time-Delay (7-60A), Class G
Construction: Melamine Tube
Ampere Ratings: ⁄Ω™-60A
Voltage Rating: 0-20A: 600V AC/170V DC or less
Interrupting Rating: 100,000A RMS Sym., 10,000A DC
Agency Approvals: Std. 248-5, Class G, UL Listed,
Guide JDDZ, File E4273
CSA Certified, Class 1422-01, File 53787
Catalog Symbol & Current Ratings
SC-⁄Ω™ SC-6 SC-25
SC-1 SC-7 SC-30
SC-1⁄Ω™ SC-8 SC-35
SC-2 SC-9 SC-40
SC-2⁄Ω™ SC-10 SC-45
SC-3 SC-12 SC-50
SC-4 SC-15 SC-60
SC-5 SC-20
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
⁄Ω™-15 4 0.06 0.03
20 4 0.06 0.03
25-30 2 0.04 0.02
36-60 2 0.08 0.03
*Weight per carton.
Panel-mount Fuseholders for SC Fuses
Catalog Description
Number Fuse Size Terminal Type
HPF-EE 1-15A Solder (w/o leads)
HPF-FEE 1-15A Leads; 10#18 copper insul. wire
HPF-JJ 20A Solder (w/o leads)
HPF-FF 25-30A Solder (w/o leads)
HPS-EE 1-15A Solder (w/o leads)
Physical Size:
Fuse (Amps) (Length)
SC-⁄Ω™ to -15 1.319
SC-20 1.419
SC-25 to -30 1.639
SC-35 to -60 2.259
Compact branch-circuit units with high interrupting rating
and current limitation.
With a 600 volt rating, they can be used in 120/208,
120/240 and 277/480 volt circuits.
Length variations relative to case size make the rejection
type fuses.
In general, SC fuses are about ⁄Ω™ the size of the 600 V NEC
fuse type.
SC fuses with ampere ratings above 6 amps have a degree
of overload time-delay which permits them to pass tempo-
rary overloads. At 200% load, they have a minimum open-
ing time of 12 seconds.
Standard SC Fuseblocks Catalog Data
Terminal Type
Screw With Pressure Plate Box Lug
Amps Poles Quick w/Quick Box w/Retaining
Connect Connect Lug Clip
⁄Ω™ 1 BG3011SQ BG3011PQ BG3011B
to 2 BG3012SQ BG3012PQ BG3012B
15 3 BG3013SQ BG3013PQ BG3013B
1 BG3021SQ BG3021PQ BG3021B
20 2 BG3022SQ BG3022PQ BG3022B
3 BG3023SQ BG3023PQ BG3023B
25 1 BG3031S BG3031P BG3031B
to 2 BG3032S BG3032P BG3032B
30 3 BG3033S BG3033P BG3033B
35 1 ——G30060-1CR
to 2——G30060-2CR
60 3 ——G30060-3C G30060-3CR
A
(Length)
.41"
(10.3mm)
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
19
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1023 (0-30) and 1105 (Fuseblock)
Low-Peak®Time-Delay, Class CC Fuses
LP-CC Low-Peak®Fuse
Time-Delay Current Limiting,
Class CC - Rejection Type
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑
(10.3mm 38.1mm)
Ampere Ratings: ⁄Ω™ - 30 Amps.
Voltage Rating: 600 Volts AC (or less), 300V DC (⁄Ω™-2°Ω¡ºA
& 20-30A), 150V DC (3-15A)
Interrupting Rating: 200,000A RMS Sym; 20,000A DC
Construction: Melamine Tube
Agency Approvals: Std. 248-4, Class CC
UL Listed, Guide JDDZ, File E4273
CSA Certified; Class 1422-02, File 53787
Catalog Symbol
600 Volts AC
LP-CC-⁄Ω™ LP-CC-2⁄Ω™ LP-CC-7⁄Ω™
LP-CC-flΩ¡º LP-CC-2°Ω¡º LP-CC-8
LP-CC-°Ω¡º LP-CC-3 LP-CC-9
LP-CC-1 LP-CC-3¤Ω¡º LP-CC-10
LP-CC-1⁄Ω• LP-CC-3⁄Ω™ LP-CC-12
LP-CC-1⁄Ω¢ LP-CC-4 LP-CC-15
LP-CC-1›Ω¡º LP-CC-4⁄Ω™ LP-CC-20
LP-CC-1⁄Ω™ LP-CC-5 LP-CC-25
LP-CC-1flꭧ LP-CC-5flꭧ LP-CC-30
LP-CC-1°Ω¡º LP-CC-6
LP-CC-2 LP-CC-6⁄Ω¢
LP-CC-2⁄Ω¢ LP-CC-7
Recommended Fuseblocks for Class CC Fuses
Screw Pressure
No. of Screw Pressure Box Quick- Quick-
Poles Terminal Plate Terminal Connect Connect
1 BC6031S BC6031P BC6031B BC6031SQ BC6031PQ
2 BC6032S BC6032P BC6032B BC6032SQ BC6032PQ
3 BC6033S BC6033P BC6033B BC6033SQ BC6033PQ
Current-Limiting Effects
Prospective Short- *Let-Thru Current (Apparent RMS Symmetrical)
Circuit Current 1⁄Ω¢A2°Ω¡ºA 15A 20A 25A 30A
1000 100 135 240 305 380 435
3000 140 210 350 440 575 580
5000 165 255 420 570 690 710
10,000 210 340 540 700 870 1,000
20,000 260 435 680 870 1,090 1,305
30,000 290 525 800 1,030 1,300 1,520
40,000 315 610 870 1,150 1,390 1,700
50,000 340 650 915 1,215 1,520 1,820
60,000 350 735 1,050 1,300 1,650 1,980
80,000 390 785 1,130 1,500 1,780 2,180
100,000 420 830 1,210 1,600 2,000 2,400
200,000 525 1,100 1,600 2,000 2,520 3,050
*RMS Symmetrical Amperes Short-Circuit
NOTE: To calculate Ip(Ipeak) multiply IRMS value 2.3.
200
100
10
TIME IN SECONDS
1
.1
.01
⁄Ω™
flꭧ
°Ω¡º
1
1⁄Ω¢
3
3⁄Ω™
4
4⁄Ω™
6
8
10
12
15
20
25
30
AMPERE
RATING
.4
1
10
100
1000
CURRENT IN AMPERES
Time Current CharacteristicsAverage Melt
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
20 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 1014 BIF document: 1015
BIF document: 1105
Class CC Rejection-Type Fuses
FNQ-R
Time-Delay, Rejection Type
Branch Circuit Fuse
Class CC
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑ (10.3mm 38.1mm)
Construction: Melamine Tube
Ampere Ratings: ⁄Ω¢-30 Amps.
Voltage Rating: 600V AC or less
Interrupting Rating: 200,000A RMS Sym.
Agency Approvals: Std. 248-4, Class CC
UL Listed, Guide JDDZ, File E4273
CSA Certified, Class 1422-01, File 53787
Catalog Symbol & Current Ratings
600 Volts AC
FNQ-R-⁄Ω¢ FNQ-R-1⁄Ω™ FNQ-R-6
FNQ-R-‹Ω¡º FNQ-R-1flΩ¡º FNQ-R-6⁄Ω¢
FNQ-R-›Ω¡º FNQ-R-1°Ω¡º FNQ-R-7
FNQ-R-⁄Ω™ FNQ-R-2 FNQ-R-7⁄Ω™
FNQ-R-flΩ¡º FNQ-R-2⁄Ω¢ FNQ-R-8
FNQ-R-‹Ω¢ FNQ-R-2⁄Ω™ FNQ-R-9
FNQ-R-°Ω¡º FQN-R-2°Ω¡º FNQ-R-10
FNQ-R-1 FNQ-R-3 FNQ-R-12
FNQ-R-1⁄Ω• FNQ-R-3¤Ω¡º FNQ-R-15
FNQ-R-1⁄Ω¢ FNQ-R-3⁄Ω™ FNQ-R-20
FNQ-R-1‹Ω¡º FNQ-R-4 FNQ-R-25
FNQ-R-1›Ω¡º FNQ-R-5 FNQ-R-30
Time-Current and Current Limitation Curves on page 209.
KTK-R Limitron®Fuse
Fast Acting; Branch Circuit Fuse
Class CC - Rejection Feature
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑ (10.3mm 38.1mm)
Construction: Melamine Tube
Ampere Ratings: ⁄Ω¡º-30 Amps.
Voltage Rating: 600 Volts AC (or less).
Interrupting Rating: 200,000A RMS Sym.
Agency Approvals: Std. 248-4, Class CC
UL Listed, Guide JDDZ, File E4273
CSA Certified, File 53787, Class 1422-02
Catalog Symbol & Current Ratings
600 Volts AC
KTK-R-⁄Ω¡º KTK-R-1 KTK-R-7
KTK-R-⁄Ω• KTK-R-1⁄Ω™ KTK-R-8
KTK-R-¤Ω¡º KTK-R-2 KTK-R-9
KTK-R-⁄Ω¢ KTK-R-2⁄Ω™ KTK-R-10
KTK-R-‹Ω¡º KTK-R-3 KTK-R-12
KTK-R-›Ω¡º KTK-R-3⁄Ω™ KTK-R-15
KTK-R-⁄Ω™ KTK-R-4 KTK-R-20
KTK-R-flꭧ KTK-R-5 KTK-R-25
KTK-R-‹Ω¢ KTK-R-6 KTK-R-30
Time-Current and Current Limitation Curves on page 210.
Recommended Fuseblocks for Class CC Fuses
Screw Pressure
No. of Screw Pressure Box Quick- Quick-
Poles Terminal Plate Terminal Connect Connect
1 BC6031S BC6031P BC6031B BC6031SQ BC6031PQ
2 BC6032S BC6032P BC6032B BC6032SQ BC6032PQ
3 BC6033S BC6033P BC6033B BC6033SQ BC6033PQ
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Bussmann®
21
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 2010 (0-30A) and 1104 (Fuseblock) BIF document: 2045 and 1104 (Fuseblock)
⁄‹Ω£™∑ 1‹Ω•∑ Supplementary Fuses
BBS
Fast Acting
Physical Size:
⁄‹Ω£™∑ ≈ 1‹Ω•∑ (10.3mm 35mm)
Construction: Fibre Cartridge
Interrupting Rating: 10,000A RMS Sym.
Ampere Ratings: ⁄Ω¡º-30A
Voltage Rating: 600V AC (⁄Ω¡º-5A), 250V AC (6-10A),
48V AC (12-30A)
Agency Approvals: Std. 248-14
UL Listed, 0-5A/600V, Guide JDYX, File E19180
CSA Certified, 0-5A/600V, Class 1422-01, File 53787
Catalog Symbol & Current Ratings
600 Volts AC 250 Volts AC 48 Volts AC
BBS-
⁄Ω¡º BBS-6 BBS-12
BBS-¤Ω¡º BBS-7 BBS-15
BBS-⁄Ω¢ BBS-8 BBS-20
BBS-›Ω¡º BBS-10 BBS-25
BBS-⁄Ω™ BBS-30
BBS-flΩ¡º ——
BBS-‹Ω¢ ——
BBS-°Ω¡º ——
BBS-1 ——
BBS-1⁄Ω™ ——
BBS-1flΩ¡º ——
BBS-1°Ω¡º ——
BBS-2 ——
BBS-3 ——
BBS-4 ——
BBS-5 ——
KTQ
Fast Acting
Physical Size:
⁄‹Ω£™∑ ≈ 1‹Ω•∑ (10.3mm 34.9mm)
Construction: Fibre Cartridge
Ampere Ratings: 1-6A
Voltage Rating: 600V AC
Interrupting Rating: 10,000A RMS Sym.
Agency Approvals: Std. 248-14
UL Recognized, 4-6A, Guide JDYX2, File E19180
Catalog Symbol & Current Ratings
600 Volts AC
KTQ-1
KTQ-1flꭧ
KTQ-2
KTQ-3
KTQ-4
KTQ-5
KTQ-6
Recommended Fuseblocks
Terminal Type
Screw Pressure
with Plate w/
Quick Quick Box
Amps Poles Connect Connect Lug
⁄Ω¡º 1 BM6031SQ BM6031PQ BM6031B
to 2 BM6032SQ BM6032PQ BM6032B
30 3 BM6033SQ BM6033PQ BM6033B
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Recommended Fuseblocks
Terminal Type
Screw Pressure
with Plate w/
Quick Quick Box
Amps Poles Connect Connect Lug
⁄Ω¡º 1 BM6031SQ BM6031PQ BM6031B
to 2 BM6032SQ BM6032PQ BM6032B
30 3 BM6033SQ BM6033PQ BM6033B
BIF document: 1104
KTK and KLM
Fast Acting
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑ (10.3mm 38.1mm)
Construction: Melamine Tube;
Albaloy Plated Brass Endcaps
Voltage Rating:
KTK - 600V AC or less
KLM - 500V AC/DC or less
(0-10A @ 500V DC,
12-30A @ 600V DC)
Interrupting Rating:
100,000A - KTK; 10,000A - KLM,
RMS SYM. (UL)
Agency Approvals: Std. 248-14
KTK-UL Listed, Guide JDYX,
File E19180
KLM-UL Recognized, Guide JFHR2,
File E56412
CSA Certified, File 53787, Class
1422-01, HRC-Misc
Electrical - Power Fuses Bussmann®
22 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
BIF document: KTK-1011
KLM-2020
BIF document: 2046 (0-30) and
1104 (Fuseblock)
BIF document: 2011 (0-30) and
1104 (Fuseblock)
⁄‹Ω£™∑ 1⁄Ω™∑ Supplementary Fuses
Catalog Symbol & Current Ratings
250 Volts IR* 250 Volts IR* 250 Volts IR* 125 Volts
*All have interrupting rating of 10,000A at 125V.
Catalog Symbol & Current Ratings
250 Volts 250 Volts 250 Volts 250 Volts
BAN-1 BAN-5 BAN-12 BAN-30
BAN-2 BAN-6 BAN-15
BAN-3 BAN-8 BAN-20
BAN-4 BAN-10 BAN-25
Catalog Symbol & Current Ratings
600 Volts AC - UL Listed and C.S.A.
KTK-
⁄Ω¡º KTK-‹Ω¢ KTK-4 KTK-12
KTK-⁄Ω KTK-1 KTK-5 KTK-15
KTK-¤Ω¡º KTK-1⁄Ω¢ KTK-6 KTK-20
KTK-⁄Ω¢ KTK-1⁄Ω KTK-7 KTK-25
KTK-‹Ω¡º KTK-2 KTK-7⁄Ω KTK-30
KTK-›Ω¡º KTK-2⁄Ω KTK-8
KTK-⁄Ω KTK-3 KTK-9
KTK-flΩ¡º KTK-3⁄Ω KTK-10
500 Volts AC/DC - UL Recognized and C.S.A.
KLM-
⁄Ω¡º KLM-⁄Ω KLM-3 KLM-10
KLM-⁄Ω KLM-‹Ω¢ KLM-4 KLM-15
KLM-¤Ω¡º KLM-1 KLM-5 KLM-20
KLM-⁄Ω¢ KLM-1⁄Ω KLM-6 KLM-25
KLM-‹Ω¡º KLM-2 KLM-8 KLM-30
BAF
Fast Acting
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑
(10.3mm 38.1mm)
Construction: Fibre Tube;
Albaloy Plated Brass Endcaps
Voltage Rating: 250V AC (¤Ω¡º-15A),
125V AC (20-30A)
Interrupting Rating: 10,000A at
125V AC
Agency Approvals: Std. 248-14
UL 0-15/250V, Guide JDYX,
File E19180
CSA Certified, 0-15/250V,
Class 1422-01, File 53787
BAN
Fast Acting
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑
(10.3mm 38.1mm)
Construction: Fibre Tube
Voltage Rating: 250V AC
Interrupting Ratings:
35A (0-1A), 100A (1⁄Ω™-3A),
200A (4-8A), 750A (10-15A),
10,000A (20-30A)
BAF-¤Ω¡º
BAF-⁄Ω¢
BAF-⁄Ω IR
BAF-flꭧ 35A
BAF-°Ω¡º
BAF-1
BAF-1⁄Ω
BAF-1°Ω¡º IR
BAF-2100A
BAF-2⁄Ω
BAF-3
BAF-4IR
BAF-5200A
BAF-6
BAF-6⁄Ω¢
BAF-7IR
BAF-8200A
BAF-9
BAF-10 IR
BAF-12 750A
BAF-15
BAF-20 IR
BAF-25
10000A
BAF-30
Recommended Fuseblocks
Terminal Type
Screw Pressure
with Plate w/
Quick Quick Box
Amps Poles Connect Connect Lug
⁄Ω¡º 1 BM6031SQ BM6031PQ BM6031B
to 2 BM6032SQ BM6032PQ BM6032B
30 3 BM6033SQ BM6033PQ BM6033B
Recommended Fuseblocks
Terminal Type
Screw Pressure
with Plate w/
Quick Quick Box
Amps Poles Connect Connect Lug
⁄Ω¡º 1 BM6031SQ BM6031PQ BM6031B
to 2 BM6032SQ BM6032PQ BM6032B
30 3 BM6033SQ BM6033PQ BM6033B
CE logo denotes compliance with European
Union Low Voltage Directive (50-1000V AC,
75-1500V DC). Refer to BIF document #8002
or contact Bussmann Application Engineering
at 636-527-1270 for more information.
CE logo denotes compliance with European
Union Low Voltage Directive (50-1000V AC,
75-1500V DC). Refer to BIF document #8002
or contact Bussmann Application Engineering
at 636-527-1270 for more information.
Bussmann®
23
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
BIF document: 2028 BIF document: 1012
⁄‹Ω£™∑ 1⁄Ω™∑ Supplementary Fuses
250 Volts AC IR 125 Volts AC IR
FNQ
Time-Delay
Physical Size:
⁄‹Ω£™∑ ≈ 1⁄Ω™∑ (5 AG)
(10.3mm 38.1mm)
Construction: Fibre Tube
Ampere Ratings: ⁄Ω¡º - 30 Amps.
Voltage Rating: 500V AC or less
Interrupting Rating: 10,000A RMS Sym.
Agency Approvals: Std. 248-14
UL Listed, Guide JDYX, File E19180
CSA Certified, Class 1422-01, File 53787
Catalog Symbol & Current Ratings
500 Volts AC
FNQ-⁄Ω¡º FNQ-°Ω¡º FNQ-3¤Ω¡º FNQ-8
FNQ-⁄Ω• FNQ-1 FNQ-3⁄Ω™ FNQ-9
FNQ-⁄fiΩ¡ºº FNQ-1⁄Ω• FNQ-4 FNQ-10
FNA-‹Ω¡§ FNQ-1⁄Ω¢ FNQ-4⁄Ω™ FNQ-12
FNQ-¤Ω¡º FNQ-1⁄Ω™ FNQ-5 FNQ-14
FNQ-⁄Ω¢ FNQ-1flΩ¡º FNQ-5flΩ¡º FNQ-15
FNQ-‹Ω¡º FNQ-2 FNQ-6 FNQ-20
FNQ-›Ω¡º FNQ-2⁄Ω¢ FNQ-6⁄Ω¢ FNQ-25
FNQ-⁄Ω™ FNQ-2⁄Ω™ FNQ-7 FNQ-30
FNQ-flΩ¡º FNQ-3 ——
FNM Fusetron®Fuse
Time-Delay
Physical Size: ⁄‹Ω£™∑ ≈ 1⁄Ω™∑ (5 AG)
(10.3mm 38.1mm)
Construction: Fibre Tube
Ampere Ratings: ⁄Ω¡º - 30 Amps.
Voltage Rating: 250 Volts AC (or less).
Interrupting Rating: See Table Below.
Agency Approvals: Std. 248-14
UL Listed, 0-10/250V; 12-15/125V;
File E19180, Guide JDYX
CSA Certified, 1-10/250V; Class 1422-01, 12-15/125V;
File 53787
Catalog Symbol & Current Ratings
250 Volts AC IR 250 Volts AC IR
FNM-⁄Ω¡º
FNM-⁄Ω•
FNM-⁄fiΩ¡ºº
FNM-¤Ω¡º
FNM-⁄Ω¢ 35A
FNM-‹Ω¡º @ 250V AC
FNM-›Ω¡º 10,000A
FNM-⁄Ω™ @ 125V AC
FNM-flꭧ
FNM-‹Ω¢
FNM-°Ω¡º
FNM-1
FNM-1⁄Ω•
FNM-1⁄Ω¢
FNM-1›Ω¡º
FNM-1⁄Ω™
FNM-1flꭧ 100A
FNM-1°Ω¡º @ 250V AC
FNM-2 10,000A
FNM-2⁄Ω¢ @ 125V AC
FNM-2⁄Ω™
FNM-2°Ω¡º
FNM-3
FNM-3¤Ω¡º
FNM-3⁄Ω™
FNM-4
FNM-4⁄Ω™
FNM-5
FNM-5flꭧ 200A
FNM-6 @ 250V AC
FNM-6⁄Ω¢ 10,000A
FNM-7 @ 125V AC
FNM-8
FNM-9
FNM-10
FNM-12
FNM-15 10,000A
@ 125V AC
32 Volts AC
FNM-20
FNM-25
FNM-30
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000V AC, 75-1500V DC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Electrical - Power Fuses Bussmann®
24
Plug Fuses
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
BIF document: 1032 (S)
& 1034 (T)
BIF document: 1033 (SL) & 1035 (TL)BIF document: 1036
W Series
Fast Acting
Ampere Ratings: ⁄Ω™ - 30 Amps
Voltage Rating: 125V AC
Element is a simple fusible, metal link.
For general purpose circuit protection.
Quickly opens when short-circuit or
overload occurs. Use for lighting and
other non-motor circuits. Edison base.
Agency Approvals: Std. 248-11
UL Listed, Guide JEFV, File E12112
SL and TL Series
Time-Delay, Loaded Link
Ampere Ratings: 15 - 30 Amps
Voltage Rating: 125V AC
Heat absorbing metal bead on ele-
ment link for time-delay. Passes motor
overload starting currents without
needlessly opening.
Edison base (TL), Rejection base (SL).
Agency Approvals: Std. 248-11
UL Listed, Guide JEFV, File E12112
S and T Series
Time-Delay, Dual-Element
Ampere Ratings:
Type S: ⁄Ω¢ - 30 Amps
Type T: ‹Ω¡º - 30 Amps
Voltage Rating: 125V AC
For all-purpose application. Like two
fuses in one. A simple link element for
short-circuits and dangerous overloads
plus a series-connected element which
lets the harmless overload starting cur-
rents of motors pass without opening.
Uses less energy; operates cooler;
provides superior protection.
Edison base (T), Rejection base (S).
Agency Approvals: Std. 248-11
Type S: UL Listed (0-6⁄Ω¢) Guide JFHR,
File E56412 (7-30A) Guide JEFV,
File E12112;
CSA Certified, Class 1423-01, File 53787
Type W
W-⁄Ω™ W-4 W-10
W-1 W-5 W-12
W-1°Ω¡º W-6 W-15
W-2 W-6⁄Ω™ W-20
W-2⁄Ω™ W-7 W-25
W-3 W-8 W-30
Type SL Type TL
SL-15 TL-15
SL-20 TL-20
SL-25 TL-25
SL-30 TL-30
Type S
S-⁄Ω¢ S-1›Ω¡º S-3⁄Ω™ S-9
S-‹Ω¡º S-1flΩ¡º S-4 S-10
S-›Ω¡º S-1°Ω¡º S-4⁄Ω™ S-12
S-⁄Ω™ S-2 S-5 S-14
S-flΩ¡º S-2⁄Ω¢ S-5flΩ¡º S-15
S-°Ω¡º S-2⁄Ω™ S-6 S-20
S-1 S-2°Ω¡º S-6⁄Ω¢ S-25
S-1⁄Ω• S-3 S-7 S-30
S-1⁄Ω¢ S-3¤Ω¡º S-8
Type T
T-‹Ω¡º T-1flΩ¡º T-4 T-10
T-›Ω¡º T-1°Ω¡º T-4⁄Ω™ T-12
T-⁄Ω™ T-2 T-5 T-14
T-flΩ¡º T-2⁄Ω¢ T-5flΩ¡º T-15
T-°Ω¡º T-2⁄Ω™ T-6 T-20
T-1 T-2°Ω¡º T-6⁄Ω¢ T-25
T-1⁄Ω• T-3 T-7 T-30
T-1⁄Ω¢ T-3¤Ω¡º T-8
T-1›Ω¡º T-3⁄Ω™ T-9
CE logo denotes compliance with European
Union Low Voltage Directive (50-1000V AC,
75-1500V DC). Refer to BIF document #8002
or contact Bussmann Application Engineering
at 636-527-1270 for more information.
CE logo denotes compliance with European
Union Low Voltage Directive (50-1000V AC,
75-1500V DC). Refer to BIF document #8002
or contact Bussmann Application Engineering
at 636-527-1270 for more information.
CE logo denotes compliance with European
Union Low Voltage Directive (50-1000V AC,
75-1500V DC). Refer to BIF document #8002
or contact Bussmann Application Engineering
at 636-527-1270 for more information.
Bussmann®
25
For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Plug Fuses
Electrical - Power Fuses
Fustat Fuse Adaptors
Fustat Adaptors (various ampere ratings) screw into the
Edison Thread fuse sockets of standard household fuse
boxes. Adaptors serve the purpose of preventing the wrong
size fuse from being used.
Symbol Carton
Catalog Number and Amperes Qty. Wt.
SA- 15, 20, 30
(Branch Circuits) 0.03
SA- 1, 1⁄Ω¢, 1flΩ¡º, 2, 2⁄Ω™,4(lbs)
(Single Motor Circuits) 3¤Ω¡º, 4, 5, 6⁄Ω¢, 8, 10
EDA Edison base dummy
ENA Edison base neutral
Dual-Element Fustat®Fuses and Adaptors for Small
Motor Protection.
(Both Motor Running and Short-Circuit Protection)
Fuses Adapter Other Accepted
Cat No. Cat. No. Ampere Ratings
S‹Ω¡º, S⁄Ω™, S°Ω¡º SA1 1 amp and
S›Ω¡º, SflΩ¡º, S1 Smaller
S1⁄Ω•, S1⁄Ω¢ SA1⁄Ω¢ All smaller
S1›Ω¡º, S1flΩ¡º SA1flΩ¡º All smaller
S1°Ω¡º, S2 SA2
S2⁄Ω¢, S2⁄Ω™ SA2⁄Ω™ 1°Ω¡º, 2
S2°Ω¡º, S3, S3¤Ω¡º SA3¤Ω¡º 1°Ω¡º, 2, 2⁄Ω¢, 2⁄Ω™
S3⁄Ω™, S4 SA4
S4⁄Ω™, S5 SA5 3⁄Ω™, 4
S5flΩ¡º, S6⁄Ω¢ SA6⁄Ω¢ 3⁄Ω™, 4, 4⁄Ω™, 5
S7, S8 SA8
S9, S10 SA10 7, 8
S12, S14 SA15 7, 8, 9, 10
Branch Circuit Protection
S15 SA15
S20 SA20
S25 SA30
S30 SA30 20, 25, 30
Bussmann®
26 For complete specification data, call Bussmann Information Fax ~ 636.527.1450
Electrical - Power Fuses
Cable Limiters & Welder Limiters
BIF document: 1042 BIF document: 1045
68000 & 64000 Series
Welder Limiters for Class H and J Fuseholders
Voltage Rating: 600 Volts AC or less
Interrupting Rating: 200,000 Amps RMS Symmetrical
Catalog Symbol & Current Ratings
Type Catalog Amp Rating Carton Weight Each
Fuseholder Number (Nominal) Quantity Lbs. Kg.
68150 150 1 1.40 0.63
68200 200
Class H 68300 300 1 2.75 1.25
68400 400
68600 600 1 4.25 1.92
64200 200 1 1.00 0.45
64300 300 1 1.75 0.79
Class J 64400 400 1 1.75 0.79
64600 600 1 3.50 1.59
Current-limiting devices designed specially for use on
welder circuits only.
Time-current characteristics are designed to hold on the
intermittent overloading encountered in welder operation,
while providing short-circuit protection to the circuit and
equipment.
Welder limiters have excess current capacity in the operat-
ing range as needed for this type of service.
Because of the special characteristics of the welder limiters,
they are not intended for application on general-use circuits.
K Series
Cable Limiters
Interrupting Rating: 200,000 Amps., 600 Volts AC
RMS Symmetrical
Copper Cable Limiter 600 Volts
Catalog Cable Catalog Cable
Symbol Size Symbol Size
Tubular Terminals
KCY #4 KCF 4/0
KCZ #3 KCH 250 MCM
KCA #2 KCJ 350 MCM
KCB #1 KCM 500 MCM
KCC 1/0 KCR 750 MCM
KCD 2/0 KCS 1000 MCM
KCE 3/0
Tubular Terminal and Offset Bolt-Type Terminal
KQV #12 KDD 2/0
KQT #10 KDE 3/0
KFZ #8 KDF 4/0
KIG #6 KDH 250 MCM
KDY #4 KDJ 350 MCM
KDA #2 KDM 500 MCM
KDB #1 KDR 750 MCM
KDC 1/0
Compression Connector Rod Terminal and Tubular Terminal
KEX 4/0 KQO 350 MCM
KFH-A 250 MCM KDT 500 MCM
*Center Bolt-Type Terminal and Off-Set Bolt-Type Terminal
KPF 4/0 KDP 500 MCM
KFT 250 MCM KFM 750 MCM
KEW 350 MCM
Also available with molded rubber boots. Add “–B to end of part number.
*Copper or aluminum cable; sizes of all other limiters pertain to copper only.