Form No.
Page 1 of 2
BIF Doc #720030
Bussmann
®
Square Body – DIN 43 653
1250V/1300V (IEC/U.L.) 50-1400A
Electrical Characteristics Ordering Information Curves
-KN/110
Type K
Rated
I
2
t (A
2
S)
Visual
Carton BIF #
Current Clearing Clearing Watts Indicator Carton Weight
Size RMS-Amps Pre-arc at 1000V at 1250V Loss for Micro Qty. (kg)
50 135 815 1100 15 170M3238
63 215 1300 1750 20 170M3239
80 420 2500 3350 25 170M3240
100 750 4450 5950 30 170M3241
125 1450 9000 11500 35 170M3242 17056630
1*
160 2600 16000 21000 40 170M3243
2 0.84
200 5150 31000 41000 45 170M3244
250 9200 54500 73000 55 170M3245
315 18500 115000 150000 60 170M3246
350 27000 165000 220000 65 170M3247
400 53000 265000 335000 70 170M3248
160 1900 11500 15500 45 170M4238
200 3800 22500 30000 50 170M4239
250 7750 46000 61500 60 170M4240
315 15000 90000 120000 65 170M4241
350 20000 125000 165000 70 170M4242
1
400 29500 175000 235000 75 170M4243
2 1.26
17056632
450 42000 250000 335000 80 170M4244
500 69500 340000 435000 85 170M4245
550 95000 465000 590000 95 170M4246
†630 130000 660000 100 170M4247
250 6500 38500 51500 65 170M5238
280 9350 55500 74500 70 170M5239
315 13000 77500 105000 75 170M5240
350 16500 97500 135000 80 170M5241
400 23000 140000 180000 85 170M5242
450 34000 205000 270000 90 170M5243
2 500 48000 285000 380000 95 170M5244 2 1.66 17056634
550 62000 370000 495000 100 170M5245
630 115000 575000 730000 110 170M5246
700 160000 795000 1050000 115 170M5247
800 245000 1200000 1550000 120 170M5248
†900 360000 1750000 125 170M5249
†1000 480000 2350000 135 170M5250
315 9500 58000 77500 85 170M6238
350 13500 81500 110000 90 170M6239
400 19500 120000 160000 95 170M6240
450 31000 185000 245000 100 170M6241
500 39000 235000 310000 105 170M6242
550 55000 325000 435000 110 170M6243
630 83500 495000 665000 115 170M6244
3
700 115000 705000 940000 120 170M6245
1 1.27
17056636
‡800 205000 995000 1300000 125 170M6246
‡900 305000 1500000 1900000 130 170M6247
‡1000 450000 2150000 2750000 135 170M6248
‡1100 575000 2800000 3600000 140 170M6249
†1250 810000 3950000 145 170M6250
†1400 1250000 6000000 150 170M6251
n Interrupting rating 100kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
n Watts loss provided at rated current.
n Rated voltage (IEC) †1100V ‡1250V (Consult Bussmann for U.L. Recognition/ CSA Component Acceptance status.)
n Microswitch indicator ordered separately.
®
7-11-01
SB01191
