Form No.
Page 1 of 2
BIF Doc #720029
Bussmann®
7-11-01 SB01191
Square Body – DIN 43 653
1250V/1300V (IEC/U.L.) 50-1400A
Electrical Characteristics Ordering Information Curves
-TN/110
Rated I2t (A2S) -/110 Type T Carton
Current Clearing Clearing Watts Visual Indicator Carton Weight
Size RMS-Amps Pre-arc at 1000V at 1250V Loss Indicator for Micro Qty. (kg) BIF #
50 135 815 1100 15 170M3138 170M3188
63 215 1300 1750 20 170M3139 170M3189
80 420 2500 3350 25 170M3140 170M3190
100 750 4450 5950 30 170M3141 170M3191
125 1450 9000 11500 35 170M3142 170M3192
1* 160 2600 16000 21000 40 170M3143 170M3193 5 1.90 17056630
200 5150 31000 41000 45 170M3144 170M3194
250 9200 54500 73000 55 170M3145 170M3195
315 18500 115000 150000 60 170M3146 170M3196
350 27000 165000 220000 65 170M3147 170M3197
400 53000 265000 335000 70 170M3148 170M3198
160 1900 11500 15500 45 170M4138 170M4188
200 3800 22500 30000 50 170M4139 170M4189
250 7750 46000 61500 60 170M4140 170M4190
315 15000 90000 120000 65 170M4141 170M4191
1350 20000 125000 165000 70 170M4142 170M4192
400 29500 175000 235000 75 170M4143 170M4193 2 1.18 17056632
450 42000 250000 335000 80 170M4144 170M4194
500 69500 340000 435000 85 170M4145 170M4195
550 95000 465000 590000 95 170M4146 170M4196
†630 130000 660000 100 170M4147 170M4197
250 6500 38500 51500 65 170M5138 170M5188
280 9350 55500 74500 70 170M5139 170M5189
315 13000 77500 105000 75 170M5140 170M5190
350 16500 97500 135000 80 170M5141 170M5191
400 23000 140000 180000 85 170M5142 170M5192
450 34000 205000 270000 90 170M5143 170M5193
2 500 48000 285000 380000 95 170M5144 170M5194 2 1.58 17056634
550 62000 370000 495000 100 170M5145 170M5195
630 115000 575000 730000 110 170M5146 170M5196
700 160000 795000 1050000 115 170M5147 170M5197
800 245000 1200000 1550000 120 170M5148 170M5198
†900 360000 1750000 125 170M5149 170M5199
†1000 480000 2350000 135 170M5150 170M5200
315 9500 58000 77500 85 170M6138 170M6188
350 13500 81500 110000 90 170M6139 170M6189
400 19500 120000 160000 95 170M6140 170M6190
450 31000 185000 245000 100 170M6141 170M6191
500 39000 235000 310000 105 170M6142 170M6192
550 55000 325000 435000 110 170M6143 170M6193
3630 83500 495000 665000 115 170M6144 170M6194
700 115000 705000 940000 120 170M6145 170M6195 1 1.23 17056636
‡800 205000 995000 1300000 125 170M6146 170M6196
‡900 305000 1500000 1900000 130 170M6147 170M6197
‡1000 450000 2150000 2750000 135 170M6148 170M6198
‡1100 575000 2800000 3600000 140 170M6149 170M6199
†1250 810000 3950000 145 170M6150 170M6200
†1400 1250000 6000000 150 170M6151 170M6201
nInterrupting rating 100kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
nWatts loss provided at rated current.
nRated voltage (IEC) †1100V ‡1250V (Consult Bussmann for U.L. Recognition/ CSA Component Acceptance status.)
nMicroswitch indicator ordered separately.
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Form No.
Page 2 of 2
BIF Doc #720029
Bussmann®
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled.
This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right,
without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without
notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Electrical Characteristics
Square Body – DIN 43 653
1250V/1300V (IEC/U.L.) 50-1400A
Total Clearing I2t
The total clearing I2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I2t is found by multi-
plying by correction factor, K, given as
a function of applied working voltage,
Eg, (RMS).
Arc Voltage
This curve gives the peak arc voltage,
UL, which may appear across the fuse
during its operation as a function of the
applied working voltage, Eg, (RMS) at a
power factor of 15%.
Power Losses
Watts loss at rated current is given in
the electrical characteristics. The curve
allows the calculation of the power
losses at load currents lower than the
rated current. The correction factor, Kp,
is given as a function of the RMS load
current, Ib, in % of the rated current .
UL
3
2.5
8
103
1.4
1.8
6
4
5
3400 600 800 1000 1200 1400
Eg
- - - - - -
Dashed lines apply to the following amperages:
Size 1* 1 2 3
Amp 400 500-630 630-1000 800-1400
K
1.5
1.0
1.25
0.5
0.4
0.3
0.2
400 600 800 1000 1200 1400
Eg
Kp
30 40 50 60 70 80 90 100%
Ib
1.0
0.8
0.4
0.5
0.6
0.3
0.2
0.1
A
B
108
D
E
E
6
H
11
Size A B D E H
1* 80 138 58 45 20
1 80 138 66 53 25
2 80 138 75 61 25
3 81 139 90 76 30
Dimension in mm.
1mm = 0.0394∑ 1∑ = 25.4mm
Dimensions
DIN 43 653: Type -/110, -TN/110
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7-11-01 SB01191
