Bussmann ® Square Body – DIN 43 653 1250V/1300V (IEC/U.L.) 50-1400A Electrical Characteristics Size 1* 1 2 3 n n n n Rated Current RMS-Amps Pre-arc I2t (A2S) Clearing at 1000V 50 63 80 100 125 160 200 250 315 350 400 160 200 250 315 350 400 450 500 550 †630 250 280 315 350 400 450 500 550 630 700 800 †900 †1000 315 350 400 450 500 550 630 700 ‡800 ‡900 ‡1000 ‡1100 †1250 †1400 135 215 420 750 1450 2600 5150 9200 18500 27000 53000 1900 3800 7750 15000 20000 29500 42000 69500 95000 130000 6500 9350 13000 16500 23000 34000 48000 62000 115000 160000 245000 360000 480000 9500 13500 19500 31000 39000 55000 83500 115000 205000 305000 450000 575000 810000 1250000 815 1300 2500 4450 9000 16000 31000 54500 115000 165000 265000 11500 22500 46000 90000 125000 175000 250000 340000 465000 660000 38500 55500 77500 97500 140000 205000 285000 370000 575000 795000 1200000 1750000 2350000 58000 81500 120000 185000 235000 325000 495000 705000 995000 1500000 2150000 2800000 3950000 6000000 Ordering Information Clearing at 1250V 1100 1750 3350 5950 11500 21000 41000 73000 150000 220000 335000 15500 30000 61500 120000 165000 235000 335000 435000 590000 51500 74500 105000 135000 180000 270000 380000 495000 730000 1050000 1550000 77500 110000 160000 245000 310000 435000 665000 940000 1300000 1900000 2750000 3600000 Watts Loss -/110 Visual Indicator -T/110 Type T Indicator for Micro 15 20 25 30 35 40 45 55 60 65 70 45 50 60 65 70 75 80 85 95 100 65 70 75 80 85 90 95 100 110 115 120 125 135 85 90 95 100 105 110 115 120 125 130 135 140 145 150 170M3138 170M3139 170M3140 170M3141 170M3142 170M3143 170M3144 170M3145 170M3146 170M3147 170M3148 170M4138 170M4139 170M4140 170M4141 170M4142 170M4143 170M4144 170M4145 170M4146 170M4147 170M5138 170M5139 170M5140 170M5141 170M5142 170M5143 170M5144 170M5145 170M5146 170M5147 170M5148 170M5149 170M5150 170M6138 170M6139 170M6140 170M6141 170M6142 170M6143 170M6144 170M6145 170M6146 170M6147 170M6148 170M6149 170M6150 170M6151 170M3188 170M3189 170M3190 170M3191 170M3192 170M3193 170M3194 170M3195 170M3196 170M3197 170M3198 170M4188 170M4189 170M4190 170M4191 170M4192 170M4193 170M4194 170M4195 170M4196 170M4197 170M5188 170M5189 170M5190 170M5191 170M5192 170M5193 170M5194 170M5195 170M5196 170M5197 170M5198 170M5199 170M5200 170M6188 170M6189 170M6190 170M6191 170M6192 170M6193 170M6194 170M6195 170M6196 170M6197 170M6198 170M6199 170M6200 170M6201 Interrupting rating 300kA RMS Symmetrical. Watts loss provided at rated current. Rated voltage (IEC) †1100V ‡1250V (Consult Bussmann for U.L. Recognition status.) Microswitch indicator ordered separately. See accessories on pages 58-59. 12-28-98 SB98107 Rev. A ® Curves Carton Qty. Carton Weight (kg) See Page or (BIF #) 5 1.90 page 63 (17056630) 2 1.18 page 64 (17056632) 2 1.58 page 64 (17056634) 1 1.23 page 65 (17056636) 1 kg = 2.2 lbs. 1 lb = 0.45 kg Form No. Page 1 of 2 BIF Doc #720029 Bussmann ® Square Body – DIN 43 653 50-1400A 1250V/1300V (IEC/U.L.) ® Electrical Characteristics Total Clearing I2t The total clearing I2t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K , given as a function of applied working voltage, E g , (RMS). Arc Voltage This curve gives the peak arc voltage, U L , which may appear across the fuse during its operation as a function of the applied working voltage, E g , (RMS) at a power factor of 15%. 1.5 K 1.25 1.0 3 2.5 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, K p , is given as a function of the RMS load current, Ib , in % of the rated current . 1.0 Kp 0.8 UL 0.6 0.5 1.8 1.4 0.4 0.5 0.4 103 8 0.3 0.3 6 5 0.2 0.2 4 Eg 400 600 800 Eg 3 400 1000 1200 1400 600 800 1000 1200 1400 Ib 0.1 30 40 50 60 70 80 90 100% -----Dashed lines apply to the following amperages: Size Amp 1* 400 1 500-630 2 630-1000 3 800-1400 Dimensions DIN 43 653: Type -/110, -T/110 Size A B D E H 1* 1 2 3 80 80 80 81 138 138 138 139 58 66 75 90 45 53 61 76 20 25 25 30 108 A Dimension in mm. 1mm = 0.0394∑ 1∑ = 25.4mm H 11 D E B 6 E 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. 12-28-98 SB98107 Rev. A Form No. Page 2 of 2 BIF Doc #720029