Square body flush end contact — 1250V/1300V (IEC/UL):50-1400A
Specifications
Description: Square body flush end contact high speed fuses.
Ratings:
Volts: — 1250Vac (IEC)
— 1300Vac (UL)
Amps: — 50-1400A
IR: — 100kA RMS Sym.
Agency Information:
CE, Designed and tested to IEC 60269: Part 4,
UL Recognized. Consult Cooper Bussmann for UL Recognition/CSA Component Acceptance status.
Fuse Dimensions:
| Dimensions (mm) |
 Type -BKN/-, -GKN/-
Size Type A B D E F F** (in) G H
1* BKN + GKN/75 74 75 59 45 M8 5⁄16” - 18 UNC-2B 5 Ø17
1* BKN/80 80 81 59 45 M8 5 Ø17
1 BKN + GKN/75 74 75 69 53 M8 5⁄16” - 18 UNC-2B 8 Ø20
1 BKN/80 80 81 69 53 M8 8 Ø20
2 BKN + GKN/75 74 75 77 61 M10 3⁄8” - 16 UNC-2B 10 Ø24
2 BKN/80 80 81 77 61 M10 10 Ø24
2 BKN + GKN/90 80 91 77 61 M10 3⁄8” - 16 UNC-2B 10 Ø24
3 BKN + GKN/75 74 76 92 76 M12 1⁄2” - 13 UNC-2B 10 Ø30
3 BKN/80 81 83 92 76 M12 10 Ø30
3 BKN + GKN/90 81 91 92 76 M12 1⁄2” - 13 UNC-2B 10 Ø30
|
**Valid for fuses type -GKN/-.
1mm = 0.0394” / 1” = 25.4mm
Fuse Catalog Numbers
Catalog Numbers |
| Electrical Characteristics |
-BKN/75
Type K Indicator for Micro | -BKN/80
Type K Indicator for Micro | -BKN/90
Type K Indicator for Micro | -GKN/75
Type K Indicator for Micro | -GKN/90
Type K Indicator for Micro | Size | Rated Current RMS-
Amps |
| Watts Loss |
| I2t (A2 Sec) |
| Pre-arc | Clearing
at 1000V | Clearing
at 1250V |
| 170M3388 | 170M3438 |
| 170M3488 |
| 1* | 50 | 135 | 815 | 1100 | 15 |
| 170M3389 | 170M3439 | 170M3489 |
| 63 | 215 | 1300 | 1750 | 20 |
| 170M3390 | 170M3440 | 170M3490 |
| 80 | 420 | 2500 | 3350 | 25 |
| 170M3391 | 170M3441 | 170M3491 |
| 100 | 750 | 4450 | 5950 | 30 |
| 170M3392 | 170M3442 | 170M3492 |
| 125 | 1450 | 9000 | 11500 | 35 |
| 170M3393 | 170M3443 | 170M3493 |
| 160 | 2600 | 16000 | 21000 | 40 |
| 170M3394 | 170M3444 | 170M3494 |
| 200 | 5150 | 31000 | 41000 | 45 |
| 170M3395 | 170M3445 | 170M3495 |
| 250 | 9200 | 54500 | 73000 | 55 |
| 170M3396 | 170M3446 | 170M3496 |
| 315 | 18500 | 115000 | 150000 | 60 |
| 170M3397 | 170M3447 | 170M3497 |
| 350 | 27000 | 165000 | 220000 | 65 |
| 170M3448 |
|
| 400 | 53000 | 265000 | 335000 | 70 |
| 170M4388 | 170M4438 |
| 170M4488 |
| 1 | 160 | 1900 | 11500 | 15500 | 45 |
| 170M4389 | 170M4439 | 170M4489 |
| 200 | 3800 | 22500 | 30000 | 50 |
| 170M4390 | 170M4440 | 170M4490 |
| 250 | 7750 | 46000 | 61500 | 60 |
| 170M4391 | 170M4441 | 170M4491 |
| 315 | 15000 | 90000 | 120000 | 65 |
| 170M4392 | 170M4442 | 170M4492 |
| 350 | 20000 | 125000 | 165000 | 70 |
| 170M4393 | 170M4443 | 170M4493 |
| 400 | 29500 | 175000 | 235000 | 75 |
| 170M4394 | 170M4444 | 170M4494 |
| 450 | 42000 | 250000 | 335000 | 80 |
| †170M4395 | 170M4445 | †170M4495 |
| 500 | 69500 | 340000 | 435000 | 85 |
| ‡170M4396 | 170M4446 | ‡170M4496 |
| 550 | 95000 | 465000 | 590000 | 95 |
| ‡170M4397 | †170M4447 | ‡170M4497 |
| 630 | 130000 | 660000 |
| 100 |
| 170M5388 | 170M5438 |
| 170M5588 |
| 2 | 250 | 6500 | 38500 | 51500 | 65 |
| 170M5389 | 170M5439 |
| 170M5589 |
|
| 280 | 9350 | 55500 | 74500 | 70 |
| 170M5390 | 170M5440 |
| 170M5590 |
|
| 315 | 13000 | 77500 | 105000 | 75 |
| 170M5391 | 170M5441 |
| 170M5591 |
|
| 350 | 16500 | 97500 | 135000 | 80 |
| 170M5392 | 170M5442 |
| 170M5592 |
|
| 400 | 23000 | 140000 | 180000 | 85 |
| 170M5393 | 170M5443 |
| 170M5593 |
|
| 450 | 34000 | 205000 | 270000 | 90 |
| 170M5394 | 170M5444 | 170M5494 | 170M5594 | 170M5644 |
| 500 | 48000 | 285000 | 380000 | 95 |
| 170M5395 | 170M5445 | 170M5495 | 170M5595 | 170M5645 |
| 550 | 62000 | 370000 | 495000 | 100 |
| †170M5396 | 170M5446 | 170M5496 | †170M5596 | 170M5646 |
| 630 | 115000 | 575000 | 730000 | 110 |
| ‡170M5397 | †170M5447 | 170M5497 | ‡170M5597 | 170M5647 |
| 700 | 160000 | 795000 | 1050000 | 115 |
| ‡170M5398 | ‡170M5448 | 170M5498 | ‡170M5598 | 170M5648 |
| 800 | 245000 | 1200000 | 1550000 | 120 |
|
| 170M5499 |
| 170M5649 |
| †900 | 360000 | 1750000 |
| 125 |
|
| 170M5500 |
| 170M5650 |
| †1000 | 480000 | 2350000 |
| 135 |
| 170M6338 | 170M6538 |
| 170M6588 |
| 3 | 315 | 9500 | 58000 | 77500 | 85 |
| 170M6339 | 170M6539 |
| 170M6589 |
|
| 350 | 13500 | 81500 | 110000 | 90 |
| 170M6340 | 170M6540 |
| 170M6590 |
|
| 400 | 19500 | 120000 | 160000 | 95 |
| 170M6341 | 170M6541 |
| 170M6591 |
|
| 450 | 31000 | 185000 | 245000 | 100 |
| 170M6342 | 170M6542 |
| 170M6592 |
|
| 500 | 39000 | 235000 | 310000 | 105 |
| 170M6343 | 170M6543 |
| 170M6593 |
|
| 550 | 55000 | 325000 | 435000 | 110 |
| 170M6344 | 170M6544 | 170M6494 | 170M6594 | 170M6644 |
| 630 | 83500 | 495000 | 665000 | 115 |
| 170M6345 | 170M6545 | 170M6495 | 170M6595 | 170M6645 |
| 700 | 115000 | 705000 | 940000 | 120 |
| †170M6346 | 170M6546 | ¥170M6496 | †170M6596 | ¥170M6646 |
| 800 | 205000 | 995000 | 1300000 | 125 |
| ‡170M6347 | †170M6547 | ¥170M6497 | ‡170M6597 | ¥170M6647 |
| 900 | 305000 | 1500000 | 1900000 | 130 |
| ‡170M6348 | †170M6548 | ¥170M6498 | ‡170M6598 | ¥170M6648 |
| 1000 | 450000 | 2150000 | 2750000 | 135 |
| ‡170M6349 | ‡170M6549 | ¥170M6499 | ‡170M6599 | ¥170M6649 |
| 1100 | 575000 | 2800000 | 3600000 | 140 |
|
| 170M6500 |
| 170M6650 |
| †1250 | 810000 | 3950000 |
| 145 |
|
| 170M6501 |
| 170M6651 |
| †1400 | 1250000 | 6000000 |
| 150 |
†Rated voltage (IEC) 1100V.
‡Rated voltage (IEC) 1000V.
¥Rated voltage (IEC) 1250V.
• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 179-180.
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