AJT1-6/10 - Mersen - Datasheet.Live

General Purpose US Fuses

GPUS1

American Power Fuses

AMP-TRAP 2000®

AJT (Class J TD)

12/04

SMARTSPOT®with Maximum circuit

protection

Amp-trap 2000®SmartSpot®AJT fuses now

provide a visual open fuse indicator. With advanced

material technology added to the existing product line

the AJT fuse provides IEC Type “2” (No Damage)

protection to main, feeder, and branch circuits, for all

types of loads — yet, they require only half the mounting

space needed for 600VAC Class RK fuses. AJT’s time delay

characteristics for handling typical in-rush currents,

its current limiting ability.

Features/Benefits

• Solid State SmartSpot Indicator

• Time delay for motor starting and transformer inrush

• 300kA interrupting rating - self-certified,

UL witnessed tests

• Extremely current limiting for low peak let-thru current

• Most current limiting UL class fuse

• Small footprint requires less mounting space and

allows smaller, more economical fuse blocks

• Easy 2-to-1 selectivity for prevention of nuisance

shutdowns

• Unique Class J dimensions prevent replacement errors

• High-visibility orange label gives instant recognition

• Metal-embossed date and catalog number for

traceability and lasting identification

• Fiberglass body provides dimensional stability in

harsh industrial settings

• High-grade silica filler ensures fast arc quenching

• Optional EI Indicator/Switch mount for AJT70 to

600 open fuse indication

Ratings

AC: 1 to 600A

600VAC, 200kA I.R. (self certified for 600VAC,

300kA I.R.,UL witnessed)

DC: 1 to 600A

500VDC, 100kA I.R.

Highlights

• Smart Spot Indicator

• Time Delay

• Highly Current Limiting

• DC Ratings

• Optional Mechanical Indicator

(70 to 600A fuses)

Applications

• Motor Circuits

• Mains

• Feeders

• Branch Circuits

• Lighting, Heating and General Loads

• Transformers

• Control Panels

• Circuit Breaker Back-up

• Bus Duct

• Load Centers

Approvals

AJT (1-600):

• UL Listed to Standard 248-8

• DC Listed to UL Standard 198L

• CSA Certified to Standard

C22.2 No. 248.8

• IEC 269-2-1

AJT (70-600) EI:

• UL Component Recognized

• DC Tested to UL Standard 198L

General Purpose US Fuses

GPUS2

American Power Fuses

AMP-TRAP 2000®

AJT (Class J TD)

12/04

Fuse 600V OR LESS

Ampere 1 Pole 3 pole

Rating Catalog Number Reference Number Catalog Number Reference Number

Standard Fuse Ampere Ratings, Catalog Numbers and Ref Numbers

Recommended Fuse Blocks With Box Connectors for Amp-trap®Class J Fuses

A variety of pole configurations and termination provisions is available.

*For optional indicator/switch mount add EI. For Example: AJT100EI .See table below

Note: Indicator not available for rating 1A to 7A.

1 AJT1 X214748

1-1/4 AJT1-1/4 C215765

1-1/2 AJT1-1/2 B215258

1-6/10 AJT1-6/10 G216275

1-8/10 AJT1-8/10 H216782

2 AJT2 P219364

2-1/4 AJT2-1/4 A200882

2-1/2 AJT2-1/2 T223094

2-8/10 AJT2-8/10 M201422

3 AJT3 Q211683

3-2/10 AJT3-2/10 L212714

3-1/2 AJT3-1/2 W212194

4 AJT4 W214241

4-1/2 AJT4-1/2 Y214749

5 AJT5 H216276

5-6/10 AJT5-6/10 J216783

6 AJT6 D217813

6-1/4 AJT6-1/4 P218329

7 AJT7 Q219365

8 AJT8 M219891

9 AJT9 D222574

10 AJT10 Y217302

12 AJT12 C217812

15 AJT15 N218328

17-1/2 AJT17-1/2 A218845

20 AJT20 Z201939

25 AJT25 X211160

30 AJT30 W213229

35 AJT35 M213727

40 AJT40 C215259

45 AJT45 D215766

50 AJT50 Z217303

60 AJT60 B218846

70 AJT70* L201421*

80 AJT80* W211159*

90 AJT90* V212193*

100 AJT100* B215764*

110 AJT110* F216780*

125 AJT125* A217810*

150 AJT150* Y218843*

175 AJT175* K219889*

200 AJT200* Y200880*

225 AJT225* V211158*

250 AJT250* K212713*

300 AJT300* L213726*

350 AJT350* W214747*

400 AJT400* G216781*

450 AJT450* M218327*

500 AJT500* N219363*

600 AJT600* C222573*

Ampere Catalog Reference Ampere Catalog Reference

Rating Number Number Rating Number Number

0-30 US3J1I M212922 US3J3I K214967

31-60 US6J1I F222047 US6J3I M211381

61-100 61036J Z201640 61038J G212917

101-200 62001J D214455 62003J E214962

201-400 64031J X218543 64033J S219068

401-600 6631J P201125 6633J A201641

General Purpose US Fuses

GPUS3

American Power Fuses

AMP-TRAP 2000®

AJT (Class J TD)

12/04

Optional Indicator/Microswitch Mount (EI) dimensions:

Note: Fuses with the EI option will

receive the AOS-S or AOS-Q

Add-On-Switch whiech is

ordered reparately.

AMPERE ABCDE FGH

RATING In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm

1-30 2-1/4 57 13/16 21 - - ----------

31-60 2-3/8 60 1-1/16 27 - - ----------

61-100 4-5/8 117 1-1/8 29 1/8 3.2 3/4 19 1 25 3-5/8 92 3/8 10 9/32 7

101-200 5-3/4 146 1-5/8 41 3/16 4.8 1-1/8 29 1-3/8 35 4-3/8 111 3/8 10 9/32 7

201-400 7-1/8 181 2-1/8 54 1/4 6.3 1-5/8 41 1-7/8 48 5-1/4 133 17/32 14 13/32 10

401-600 8 203 2-1/2 64 3/8 9.5 2 51 2-1/8 54 6 152 11/16 18 17/32 13

1-60A

70-600A

Dimensions

Catalog Reference A

Number Number

AJT70EI Y201938

AJT80EI P211682 2.80

AJT90EI V214240 (71.0)

AJT100EI F216274

AJT110EI W217300

AJT125EI L218326 3.22

AJT150EI M219362 (81.8)

AJT175EI R223092

AJT200EI K201420

AJT225EI N211681

AJT250EI V213228 3.24

AJT300EI T214239 (82.2)

AJT350EI A215257

AJT400EI X217301

AJT450EI Z218844

AJT500EI L219890 3.61

AJT600EI S223093 (91.8)

General Purpose US Fuses

GPUS4

American Power Fuses

AMP-TRAP 2000®

AJT (Class J TD)

12/04

MAXIMUM INSTANTANEOUS PEAK LET-THRU AMPERES

AVAILABLE CURRENT IN RMS SYMMETRICAL AMPERES

Peak Let-Thru Current Data

AJT 30 to 600, 600 Volts AC 230 Volt Three Phase Class J AJT Fuses

Three Phase Motor Fuse Selection

Full Recommended Fuse Ampere Rating

Motor Load Motor Acceleration Times

HP Amperes Minimum Typical Heavy Load

at 230V 2 sec. 5 sec. Over 5 sec.

1/2 2.2 3 3-1/2 4

3/4 3.2 4 5 6

1 4.2 5 6-1/4 8

1-1/2 6 8 9 10

2 6.8 8 10 12

3 9.6 12 15 17-1/2

5 15.2 20 25 30

7-1/2 22 30 35 40

10 28 35 40 50

15 42 50 60 80

20 54 70 80 100

25 68 80 100 125

30 80 100 125 150

40 104 125 150 200

50 130 175 200 250

60 154 200 225 300

75 192 250 300 350

100 248 300 350 450

125 312 400 450 600

150 360 450 500 600

200 480 600 - -

CURRENT IN AMPERES

TIME IN SECONDS

MELTING TIME – CURRENT DATA, 600V FUSES

AJT 1 to 600

General Purpose US Fuses

GPUS5

American Power Fuses

AMP-TRAP 2000®

AJT (Class J TD)

12/04

575 Volt Three Phase Class J AJT Fuses380 Volt Three Phase Class J AJT Fuses

Full Recommended Fuse Ampere Rating

Motor Load Motor Acceleration Times

HP Amperes Minimum Typical Heavy Load

at 380V 2 sec. 5 sec. Over 5 sec.

1/2 1.3 1-6/10 2 2-1/4

3/4 1.9 2-1/2 2-8/10 3-1/2

1 2.5 3-2/10 4 4-1/2

1-1/2 3.6 4-1/2 5-6/10 6

2 4.1 5 6 7

3 5.8 8 8 10

5 9.2 12 15 17-1/2

7-1/2 13.3 17-1/2 20 25

10 17 20 25 30

15 25 30 40 45

20 33 40 50 60

25 41 50 60 70

30 48 60 80 90

40 68 80 100 125

50 79 90 125 150

60 93 110 150 175

75 116 150 175 200

100 150 175 225 250

125 189 250 300 350

150 218 300 350 400

200 291 350 450 500

Full Recommended Fuse Ampere Rating

Motor Load Motor Acceleration Times

HP Amperes Minimum Typical Heavy Load

at 460V 2 sec. 5 sec. Over 5 sec.

1/2 1.1 1-1/2 1-6/10 2

3/4 1.6 2 2-1/4 3

1 2.1 2-1/2 3-2/10 4

1-1/2 3 3-1/2 4-1/2 5-6/10

2 3.4 4 5 6

3 4.8 6 8 9

5 7.6 10 12 15

7-1/2 11 15 15 20

10 14 17-1/2 20 25

15 21 25 30 40

20 27 35 40 50

25 34 40 50 60

30 40 50 60 70

40 52 70 80 90

50 65 80 100 125

60 77 100 125 150

75 96 125 150 175

100 124 175 200 250

125 156 200 225 300

150 180 225 250 350

200 240 300 350 450

250 302 400 450 600

300 361 450 600 -

460 Volt Three Phase Class J AJT Fuses

Full Recommended Fuse Ampere Rating

Motor Load Motor Acceleration Times

HP Amperes Minimum Typical Heavy Load

at 575V 2 sec. 5 sec. Over 5 sec.

1/2 .9 1-1/4 1-1/2 1-6/10

3/4 1.3 1-6/10 2 1-1/2

1 1.7 2-1/4 2-1/2 3

1-1/2 2.4 3 3-1/2 4-1/2

2 2.7 3-2/10 4 5

3 3.9 5 6 7

5 6.1 8 9 12

7-1/2 9 12 15 17-1/2

10 11 15 17-1/2 20

15 17 20 25 30

20 22 30 35 35

25 27 35 40 50

30 32 40 50 60

40 41 50 60 70

50 52 70 80 90

60 62 80 90 110

75 77 100 125 150

100 99 125 150 175

125 125 150 200 225

150 144 175 225 250

200 192 250 300 350

250 240 300 350 400

300 289 350 450 500

Minimum - Minimum sizing may not be heavy enough for

motors with code letter G or higher.

Typical - Suggested for most applications. Will coordinate

with NEMA Class 20 overload relays. Suitable for

motor acceleration times up to 5 seconds.

Heavy Load - In accordance with Table 430-152. If this

fuse is not sufficient to start the load, it may

be increased to a maximum of 225% of full-

load amperes (430-52 Exc. 2b). Use this col-

umn for Design E Motors.

Three Phase Motor Fuse Selection Three Phase Motor Fuse Selection