Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Main characteristics
12/04
126
650 to 1300VAC / 63 to 2800A.
• Exceptionally low I2T, Watt losses.
• Non-magnetic construction, highly reliable low voltage.
• Indicator system.
• Conformity to UL, CSA investigated, IEC, DIN and VDE standards.
• Increased technical performance
• Higher ratings.
• Reduction in volume and weight.
Recognized
PSC 650 to 1300VAC US and European standard
Total I2t @
Nominal Voltage Pre-arcing 1000V Tested Breaking capacity
Size UN (VAC) Ampere I2t @ 1ms (*) @ Un Power (W)
Rating (A) (kA2s) (kA2s)
IEC UL
End contacts
Blades IEC USA
Estimated breaking
capacity: 300 kA
(1) at 850 V
(2) does not exist with blades
• This fuse preselection table indicates, for each size:
-rated current (or rating) In
- pre-arcing I2t (I2tp) at 1 ms
- total operating I2t (I2tt) at 1000 V and 850V(I)f=50Hz,
cos ϕ=0.15,
and for a total operating time from 8 to 10 ms
- dissipated power Pn at
the rated current In, and
at 0.8 In, in steady state
- breaking capacity at various voltages, checked by tests
made in accordance with IEC and American standards.
50 0,116 0,7 16 16
63 0,210 1,2 26 26
80 0,470 2,7 27 27
100 0,830 4,8 30 30
1250 1300 125 1,30 7,5 38 38
100kA @ 1250V 100kA @ 1300V
160 2,55 15 45 45
200 4,7 27 54 56
250 9,6 55 58 61
70 1200 1300 280 14 82 61 64
100kA @ 1200V 100kA @ 1300V
315 20 115 66 72
350 28 158 68 75
1100 1200 400 39 224 81 90
150kA @ 1100V 150kA @ 1200V
450 62 356 82 82
1000 1100 500 84 483 83 83
120kA @ 1000V 120kA @ 1100V
800 900 550 128 576(*) 83 83
100kA @ 800V 100kA @ 900V
750 800 630 176 730(*) 91 91
100kA @ 750V 100kA @ 800V
160 2,6 15 46 46
200 4,7 27 54 54
250 8,9 51 61 61
280 12 68 68 70
100kA @ 1250V 100kA @ 1300V
1250 1300 315 16 92 73 76
350 22 127 76 80
400 38 220 76 80
450 47 270 87 95
71 1300 (TTI) 500 68 390 90 X 150kA @ 1300V
1100 1200 500 68 390 X 100
150kA @ 1100V
150kA @ 1200V
550 84 485 98 112
630 125 725 105 X
1000 1100 630 125 725 X 120 150kA @ 1000V 150kA @ 1100V
700 180 1040 105 105
900 950 800 290 1540(*) 116 116 100kA @ 900V 100kA @ 950V
800 850 900 446 2010(*) 120 120 100kA @ 800V 100kA @ 850V
SCAC127
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Main characteristics
12/04
PSC 650 to 1300VAC US and European standard
Total I2t @
Nominal Voltage Pre-arcing 1000V Tested Breaking capacity
Size UN (VAC) Ampere I2t @ 1ms (*) @ Un Power (W) Estimated B.C 300 kA
Rating (A) (kA2s) (kA2s)
IEC UL
End contacts
Blades IEC USA
(1) at 850 V
(2) does not exist with blades
280 10 60 72 72
315 15 87 76 76
350 21 120 77 77
400 32,5 190 80 80
1250 1300 450 44 255 87 89
100kA @ 1250V 100kA @ 1300V
500 57 330 94 98
550 68 390 110 120
72 630 105 610 113 X
630 105 610 X 125
150kA @ 1100V 150kA à 1200V
1100 1200 700 145 815 122 140
800 215 1240 125 146
700 145 815 X 140
150kA @ 1000V 150kA @ 1100V
1000 1100 800 215 1240 X 146
900 312 1800 130 152
850 900 1000 439 2150(*) 136 136 100kA @ 850V 100kA @ 900V
315 12 68 84 84
350 17 100 86 86
375 19 110
400 25 145 93 93
450 35,5 205 99 100
1250 1300 500 44 255 110 112
100kA @ 1250V 100kA @ 1300V
550 57 330 116 120
630 84 485 125 132
700 110 640 135 X
800 190 1090 136 X
1200 1300 700 110 640 X 146
100kA @ 1200V 100kA @ 1300V
900 250 1090 150 X
73 1100 1200 800 190 1090 X 148
150kA @ 1100V 150kA @ 1200V
900 250 1440 X 170
150kA @ 1000V 150kA @ 1100V
1000 1100 1000 370 2130 152 168
1100 445 2555 168 208
950 1000 1100 445 2430(*) 168 X
150kA @ 950V 150kA @ 1000V
1000 370 1920(*) X 174
900 1000 1100 445 2280(*) X 208
150kA @ 900V 150kA @ 1000V
1250 585 3080(*) 186 X
1400 755 4100(*) 210 X
850 900 1400 755 3700(*) 210 X 150kA @ 850V 150kA @ 900V
690 700 1500 1180 4750(*) 200 X 180kA @ 690V 180kA @ 700V
1600 1430 5740(*) 203 X
600 650 1800 2040 7150(*) 206 X 120kA @ 600V 120kA @ 650V
630 60 348 160
700 84 480 162
1250 800 130 760 168
100kA @ 1250V
900 176 1020 183
1000 228 1320 197
1100 272 1560 231
2 x 72 1100 1250 426 2440 237
100kA @ 1100V
1400 568 3260 256
1000 1600 860 4895 262
100kA @ 1000V
900 1800 1250 6350(*) 275 100kA @ 900V
750 2000 1760 7570(*) 285 100kA @ 750V
650 2200 2410 8350(*) 320 100kA @ 650V
2500 3470 12000(*) 340
800 100 580 195
900 142 820 208
1250 1000 176 1000 231
100kA@ 1250V
1100 228 1300 244
1250 336 1900 262
1400 440 2600 283
2 x 73 1100 1600 760 4400 286
100kA @ 1100V
1800 1000 5800 315
1000 2000 1480 8500 319
120kA @ 1000V
950 2200 1780 9632(*) 353 100kA @ 950V
900 2500 2340 12075(*) 390 110kA @ 900V
850 2800 3000 15000(*) 440 100kA @ 850V
600 3000 4980 15700(*) 405
200kA @ 600V
3200 5720 19030(*) 426
550 3600 8160 25200(*) 430
200kA @ 550V
Q301015
R301016
S301017
T301018
V301019
W301020
X301021
Y301022
Z301023
A301024
B301025
C301026
D301027
E301028
F301029
G301030
H301031
J301032
K301033
L301034
M301035
N301036
P301037
Q301038
R301039
S301040
T301041
V301042
W301043
X301044
Y301045
Z301046
A301047
B301048
C301049
D301050
E301051
F301052
G301053
H301054
J301055
K301056
L301057
M301058
N301059
Q300877
R300878
A130URD 70 TTI 0063
A130URD 70 TTI 0080
A130URD 70 TTI 0100
A130URD 70 TTI 0125
A130URD 70 TTI 0160
A130URD 70 TTI 0200
A130URD 70 TTI 0250
A130URD 70 TTI 0280
A130URD 70 TTI 0315
A120URD 70 TTI 0350
A130URD 71 TTI 0160
A130URD 71 TTI 0200
A130URD 71 TTI 0250
A130URD 71 TTI 0280
A130URD 71 TTI 0315
A130URD 71 TTI 0350
A130URD 71 TTI 0400
A130URD 71 TTI 0450
A130URD 71 TTI 0500
A120URD 71 TTI 0550
A120URD 71 TTI 0630
A130URD 72 TTI 0280
A130URD 72 TTI 0315
A130URD 72 TTI 0350
A130URD 72 TTI 0400
A130URD 72 TTI 0450
A130URD 72 TTI 0500
A130URD 72 TTI 0550
A130URD 72 TTI 0630
A120URD 72 TTI 0700
A120URD 72 TTI 0800
A130URD 73 TTI 0315
A130URD 73 TTI 0350
A130URD 73 TTI 0400
A130URD 73 TTI 0450
A130URD 73 TTI 0500
A130URD 73 TTI 0550
A130URD 73 TTI 0630
A130URD 73 TTI 0700
A130URD 73 TTI 0800
A130URD 73 TTI 0900 **
A110URD 73 TTI 1000 **
A100URD 73 TTI 1100 **
A100URD 73 TTI 1250 **
A090URD 73 TTI 1400 **
A070URD 73 TTI 1600 **
A065URD 73 TTI 1800 **
Semiconductor fuses
Semiconductor (AC) fuses
SCAC128
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
American Terminals - 70 - 73 End contacts
12/04
Size Designation Reference Number Weight (g)
350
500
850
1250
Packaging Catalog Number
3
3
3
3
A130UD70TTI63
A130UD70TTI80
A130UD70TTI100
A130UD70TTI125
A130UD70TTI160
A130UD70TTI200
A130UD70TTI250
A130UD70TTI280
A130UD70TTI315
A120UD70TTI350
A130UD71TTI160
A130UD71TTI200
A130UD71TTI250
A130UD71TTI280
A130UD71TTI315
A130UD71TTI350
A130UD71TTI400
A130UD71TTI450
A130UD71TTI500
A120UD71TTI550
A120UD71TTI630
A130UD72TTI280
A130UD72TTI315
A130UD72TTI350
A130UD72TTI400
A130UD72TTI450
A130UD72TTI500
A130UD72TTI550
A130UD72TTI630
A120UD72TTI700
A120UD72TTI800
A130UD73TTI315
A130UD73TTI350
A130UD73TTI400
A130UD73TTI450
A130UD73TTI500
A130UD73TTI550
A130UD73TTI630
A130UD73TTI700
A130UD73TTI800
A130UD73TTI900
A110UD73TTI1000
A100UD73TTI1100
A100UD73TTI1250
A090UD73TTI1400
A070UD73TTI1600
A065UD73TTI1800
Size A B C D E±1 d G±0.1 P±0.1
70 40 46,5 82 26 74 9 6
1-9/16” 1-27/32” 3-7/32” 1-1/64” 2-29/32” 5/16”-18 23/64” 15/64”
71 51 56,5 91 30 74 9 9
2” 2-7/32” 3-37/64” 1-3/16” 2-29/32” 5/16”-18 23/64” 23/64”
72 60 65,5 100 38 ; (42mm **) 74 15 9
2-3/8” 2-37/64” 3-15/16” 1-1/2” ; (1-21/32” **) 2-29/32” 3/8”-16 19/32” 23/64”
73 74,5 79,5 114 46 ; (52mm **) 74 15 9
2-15/16” 3-1/8” 4-1/2” 1-13/16” ; (2-1/16” **) 2-29/32” 1/2"-13 19/32” 23/64”
P
Note:
Dimensions in mm
Dimensions in inches
Microswitches and threaded studs supplied separately
70
71
72
73
Semiconductor fuses
Semiconductor (AC) fuses
SCAC134
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
1,4
1,2
1
0,8
0,6
0,4
0,2
00 200 400 600 800 1000 1200
Multiplier coefficient
Left: Mean curve indicating variation of total I2t (I2t t)
and total operating time Ttin accordance with
working voltage U.
Example:
Fuse 350 A in size 70.
Ip= 10 000 A U = 1100 V
At 1000 V
I2t t= 115 000 A2s Tt= 7 ms
At 1100 V
I2t t= 115 000 x 1.13 = 130 000 A2s
Tt= 7 x 1.13 = 7.9 ms
* curve for fuses with I2t published at 850VAC
Dissipated power Arc voltage
Above right: Curve indicating peak arc
voltage Um which may appear across
fuse terminals as a function of working
voltage U at cos ϕ= 0.15
Above left: Curve enabling calculation of
dissipated power P by a fuse rated IN, as a
function of the RMS current I, in multiples
of IN, in steady state.
U (V)
I/In
K
P/Pn
*
SCAC135
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Time-current characteristics
Curves indicating pre-arcing time for each rated cur-
rent as a function of RMS value of pre-arcing current I.
- Tolerances on this current ± 8 %.
- Beyond 30 sec, small overloads must be eliminated
by another device.
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its hor-
izontal line is represented. Its oblique line must be
plotted according to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Time-current characteristics
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
70
Size 70
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Time-current characteristics
Curves indicating pre-arcing time for each rated cur-
rent as a function of RMS value of pre-arcing current
I.
- Tolerances on this current ± 8 %.
- Beyond 30 sec, small overloads must be eliminated
by another device.
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its
horizontal line is represented. Its oblique line must
be plotted according to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Semiconductor fuses
Semiconductor (AC) fuses
136
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Size
71
Time-current characteristics
Size 71
Maximum values of total operating
I2t and total operating times
Left: Horizontal curves indicating the maximum
values of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Below, right: Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
SCAC137
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Size
72
Size 72
Time-current characteristics
Above, left: Curves indicating pre-arcing time for
each rated current as a function of RMS value of pre-
arcing current I.
- Tolerances on this current ± 8 %.
- Beyond 30 sec, small overloads must be eliminated
by another device.
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its
horizontal line is
represented. Its oblique line must be plotted accord-
ing to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Time-current characteristics
Semiconductor fuses
Semiconductor (AC) fuses
SCAC138
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Time-current characteristics
Curves indicating pre-arcing time for each rated cur-
rent as a function of RMS value of pre-arcing current I.
- Tolerances on this current ± 8 %.
- Beyond 30 sec, small overloads must be eliminated
by another device.
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its
horizontal line is represented. Its oblique line must be
plotted according to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
73
Size 73
Time-current characteristics
SCAC139
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Time-current characteristics
Curves indicating pre-arcing time for each rated current
as a function of RMS value of pre-arcing current I.
- Tolerances on this current ± 8 %.
- Beyond 30 sec, small overloads must be eliminated by
another device.
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its
horizontal line is represented. Its oblique line must be
plotted according to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
2X72
Time-current characteristics
Size 2x72