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| Bussmann British Style BS 88 (R) (R) Ordering Information Watts Loss Part Number Carton Qty. Carton Weight (kg) Dimensions Figure Number Curves 690V Type Rated Current RMS-Amps 6-700A Electrical Characteristics I2t (A2S) Clearing Clearing Pre-arc at 415V at 660V BIF # 6 10 CT 12 16 20 25 32 35 40 ET 45 56 63 80 35 40 45 50 FE 63 71 80 90 100 90 110 EET 140 160 100 120 140 FEE 160 180 200 180 200 225 FM 250 280 315 350 400 450 500 FMM 550 630 700 160 180 200 MT 250 280 315 355 180 200 225 280 315 355 MMT 400 450 500 560 630 710 U.L Recognition on CT, 1.8 7 10 16 32 25 32 52 103 103 135 171 360 33 52 76 103 135 210 250 360 470 490 600 1050 1500 400 540 850 1000 1400 1900 1400 2600 3700 5200 7000 10000 15000 10000 15000 20000 30000 45000 60000 2400 3800 6000 11500 16500 19000 22000 1650 2200 3700 6600 8600 13500 21000 30000 42000 60000 68500 78000 ET, FE, EET, 8.5 12 30 48 40 65 66 110 150 220 150 250 190 350 310 500 600 900 680 1100 950 1500 1200 2000 2500 4000 130 200 180 300 270 450 380 600 480 750 600 950 900 1500 1300 2100 1800 2800 3000 4500 4000 6500 7000 12000 10000 17000 1600 2400 1900 3100 2500 3800 3700 5700 5300 8400 7100 11400 7500 13500 10500 18500 14500 26500 20500 37500 30500 55000 40000 77000 60000 105000 40000 72500 60000 105000 82000 150000 120000 215000 180000 310000 245000 420000 15000 25000 25000 38000 40000 58000 80000 110000 100000 150000 125000 180000 160000 200000 12000 18000 16000 23000 26000 40000 47000 70000 62000 91000 97000 140000 150000 220000 220000 320000 300000 450000 430000 640000 500000 720000 600000 850000 FEE, FM, & FMM. 2 3 3 7 7 7 11 11 9 11 14 16 18 9 9 11 11 12 17 20 20 23 19 27 35 39 24 32 36 46 46 52 40 40 44 48 48 55 55 85 90 100 100 100 120 26 26 27 32 35 42 51 42 42 42 47 51 54 60 57 64 64 86 105 6CT 10CT 12CT 16CT 20CT 25ET 32ET 35ET 40ET 45ET 56ET 63ET 80ET 35FE 40FE 45FE 50FE 63FE 71FE 80FE 90FE 100FE 90EET 110EET 140EET 160EET 100FEE 120FEE 140FEE 160FEE 180FEE 200FEE 180FM 200FM 225FM 250FM 280FM 315FM 350FM 400FMM 450FMM 500FMM 550FMM 630FMM 700FMM 160MT 180MT 200MT 250MT 280MT 315MT 355MT 180MMT 200MMT 225MMT 280MMT 315MMT 355MMT 400MMT 450MMT 500MMT 560MMT 630MMT 710MMT 20 0.160 Fig. 1 35785312 10 0.420 Fig. 2 10 0.420 Fig. 2 35785314 5 0.450 Fig. 3 35785313 5 0.450 Fig. 3 35785292 1 0.240 Fig. 4 35785314 1 0.450 Fig. 5 35785292 1 0.260 Fig. 4 35785313 1 .0470 Fig. 5 35785311 1 kg = 2.2 lbs 1 lb = 0.45 kg 350 Vdc (IEC) rating. Consult Bussmann for U.L. Recognition status. Interrupting rating 200kA RMS Symmetrical. (500 Vdc/Interrupting rating 50ka) U.L. Recognition for CT, ET, FE, EET, FEE, FM & FMM. Watts loss provided at rated current. Note: FC, 8ET, 12ET, 15ET, 20ET, 65EET and 75EET are available for replacement purposes on existing equipment. 7-18-01 SB01191 Form No. Page 1 of 2 BIF Doc #720024 Bussmann British Style BS 88 (R) 690V 6-700A 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%. (R) 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). 1.6 1.4 1.2 1.0 0.8 0.6 500 0.4 0.2 200 1) 2) Eg 300 400 500 600 660 200 400 1) CT, ET, EET, FE, FEE, MT, MMT 2) FM, FMM 1) CT 2) ET, FE, EET, FEE, FM, FMM 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 K 1500 UL 1) 0.6 0.5 0.4 0.3 0.2 1000 2) Eg 600 660 0.1 30 40 50 60 70 Ib 80 90 100% Dimensions Fig. 1: CT 4 5.5 Fig. 2: ET, FE 7.1 Fig. 3: EET, FEE 8.7 54.8 64.3 74.6 48 63.5 77 46 70 94 11.9 9.7 6.4 8.7 8.7 12.7 17.1 31.8 37 19 Fig. 4: FM, MT 25.4 19.1 Fig. 5: FMM, MMT 25.4 50 50 A 113 14 13.5 10.3 10.3 A 113 Type FM FMM MT MMT "A" Dimension 80-85 80-85 85 85 83 41 38.1 Dimensions in mm. 1mm = 0.0394 1 = 25.4mm 38 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. 7-18-01 SB01191 Form No. Page 2 of 2 BIF Doc #720024 |
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