350FM

High Speed Fuses British BS 88 — 690V: 6-710A CT, ET, FE, EET, FEE, FM, FMM, MT, MMT 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%. Specifications Description: BS 88 style stud-mount fuses. Dimensions: See dimensions illustrations. Ratings: Volts: — 690Vac/500Vdc Amps: — 6-710A IR: — 200kA RMS Sym. Agency Information: CE, Designed and tested to: BS 88 Part 4, IEC 269 Part 4, UL Recognized. MT and MMT — 350Vdc (IEC) rating. Consult Cooper Bussmann for UL Recognition status. 1.2 1.0 0.8 0.6 1) 2) 0.2 Eg 200 300 400 500 Fig. 2: ET, FE Eg 400 600 660 1) CT 2) ET, FE, EET, FEE, FM, FMM 1.0 Kp 0.8 0.6 0.5 0.4 0.3 0.2 Ib 0.1 30 40 50 60 • • • • Typical Applications DC common bus DC drives Power converters/rectifiers Reduced voltage starters Fig. 4: FM, MT 8.7 Fig. 5: FMM, MMT 25.4 4 80 90 100% 70 Features and Benefits Excellent cycling capability Excellent DC performance Low arc voltage and low energy let-through (I2t) Low watts loss Fig. 3: EET, FEE 7.1 500 • • • • 600 690 1) CT, ET, EET, FE, FEE, MT, MMT 2) FM, FMM Dimensions (mm) Fig. 1: CT 2) High Speed Fuses K 1.4 0.4 1000 200 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. Total Clearing I2t 1.6 1) Power Losses Electrical Characteristics 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, Eg, (rms). UL 1500 25.4 5.5 50 46 70 94 48 63.5 77 50 54.8 64.3 74.6 A 6.4 8.7 8.7 13.5 19.1 10.3 31.8 10.3 37 19 41 38.1 1mm = 0.0394” / 1” = 25.4mm Data Sheet: 720024 113 14 11.9 9.7 12.7 17.1 A 113 83 38 Figs. 4 & 5 “A” Dimensions Type “A” FM 80-85mm FMM 80-85mm MT 85mm MMT 85mm For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 191 High Speed Fuses British BS 88 — 690V: 6-710A Catalog Numbers CT ET FE EET FEE FM FMM MT MMT CT 6-20, ET 25-80A: 690V Watts Loss 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 • Watts loss provided at rated current. • Note: FC, 8ET, 12ET, 15ET, 20ET, 65EET and 75EET are available for replacement purposes on existing equipment. • See accessories on page 195. Time-Current Curve 104 6 4 2 103 6 4 25ET 32ET 35ET 40ET 45ET 56ET 63ET 80ET 2 102 6 4 Virtual Pre-Arcing Time In Seconds Type Electrical Characteristics I2t (A2 Sec) Clearing Clearing Pre-arc at 415V at 660V 1.8 8.5 12 7 30 48 10 40 65 16 66 110 32 150 220 25 150 250 32 190 350 52 310 500 103 600 900 103 680 1100 135 950 1500 171 1200 2000 360 2500 4000 33 130 200 52 180 300 76 270 450 103 380 600 135 480 750 210 600 950 250 900 1500 360 1300 2100 470 1800 2800 490 3000 4500 600 4000 6500 1050 7000 12000 1500 10000 17000 400 1600 2400 540 1900 3100 850 2500 3800 1000 3700 5700 1400 5300 8400 1900 7100 11400 1400 7500 13500 2600 10500 18500 3700 14500 26500 5200 20500 37500 7000 30500 55000 10000 40000 77000 15000 60000 105000 10000 40000 72500 15000 60000 105000 20000 82000 150000 30000 120000 215000 45000 180000 310000 60000 245000 420000 2400 15000 25000 3800 25000 38000 6000 40000 58000 11500 80000 110000 16500 100000 150000 19000 125000 180000 22000 160000 200000 1650 12000 18000 2200 16000 23000 3700 26000 40000 6600 47000 70000 8600 62000 91000 13500 97000 140000 21000 150000 220000 30000 220000 320000 42000 300000 450000 60000 430000 640000 68500 500000 720000 78000 600000 850000 2 101 6 4 6CT 10CT 12CT 16CT 20CT 2 100 6 4 2 10–1 6 4 2 10–2 6 4 2 10–3 6 4 2 10–4 2 4 6 8 101 2 4 6 8 102 2 6 8 103 Peak Let-Through Curve 6 4 2 315MT 355MT 280MT 250MT 105 6 180MT 160MT 4 710MMT 630MMT 560MMT 500MMT 450MMT 400MMT 355MMT 315MMT 280MMT 200MT 225MMT 200MMT 180MMT 2 104 6 4 2 103 6 160EET 140EET 110EET 90EET 4 80ET 63ET 56ET 45ET 40ET 35ET 32ET 25ET 2 20CT 16CT 12CT 10CT 6CT 102 6 4 2 101 101 2 4 6 102 2 4 6 103 2 4 6 104 Prospective Short-Circuit Current Symmetrical RMS Data Sheet: 35785312 192 4 Prospective Current In Amps RMS Peak Let-Through Current Catalog Numbers 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 Rated Current RMS-Amps 6 10 12 16 20 25 32 35 40 45 56 63 80 35 40 45 50 63 71 80 90 100 90 110 140 160 100 120 140 160 180 200 180 200 225 250 280 315 350 400 450 500 550 630 700 160 180 200 250 280 315 355 180 200 225 280 315 355 400 450 500 560 630 710 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 2 4 6 105 2 High Speed Fuses British BS 88 — 690V: 6-710A EET 90-160A, MT 160-355A: 690V MMT 180-710A: 690V Time-Current Curve Time-Current Curve 104 104 6 4 6 4 2 2 103 160MT 180MT 200MT 250MT 280MT 315MT 355MT 6 4 2 102 6 4 6 4 2 102 6 4 Virtual Pre-Arcing Time In Seconds 2 101 6 4 90EET 110EET 140EET 160EET 2 100 6 4 2 10 –1 6 4 6 4 2 100 6 4 2 10–1 6 4 2 10–2 2 6 4 10–2 2 6 4 10–3 6 4 2 10–3 2 10–4 180MMT 200MMT 225MMT 280MMT 315MMT 355MMT 2 101 High Speed Fuses 2 4 6 8 102 2 4 6 8 103 2 4 6 6 4 8 104 2 Prospective Current In Amps RMS 10–4 2 102 4 6 8 2 4 103 Prospective Current In Amps RMS Data Sheet: 35785313 6 8 104 Data Sheet: 35785311 Peak Let-Through Curve 6 4 2 315MT 355MT 280MT 250MT 105 6 180MT 160MT 4 710MMT 630MMT 560MMT 500MMT 450MMT 400MMT 355MMT 315MMT 280MMT 200MT 225MMT 200MMT 180MMT 2 Peak Let-Through Current Virtual Pre-Arcing Time In Seconds 400MMT 450MMT 500MMT 560MMT 630MMT 710MMT 103 104 6 4 2 103 6 160EET 140EET 110EET 90EET 4 80ET 63ET 56ET 45ET 40ET 35ET 32ET 25ET 2 20CT 16CT 12CT 10CT 6CT 102 6 4 2 101 101 2 4 6 102 2 4 6 103 2 4 6 104 2 4 6 105 2 Prospective Short-Circuit Current Symmetrical RMS For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 193 High Speed Fuses British BS 88 — 690V: 6-710A FE 35-100A & FM 180-350A: 690V FEE 100-200A & FMM 400-700A: 690V Time-Current Curve Time-Current Curve 104 104 6 4 6 4 2 2 103 6 4 103 6 4 2 180FM 200FM 220FM 250FM 280FM 315FM 350FM 2 101 6 4 2 2 35FE 40FE 45FE 50FE 63FE 71FE 80FE 90FE 100FE 100 6 4 2 10–1 6 4 2 101 6 100FEE 4 120FEE 140FEE 2 160FEE 180FEE 100 200FEE 6 4 2 10–1 6 4 2 10–2 6 4 2 10–2 6 4 2 10–3 6 4 2 2 10–4 400FMM 450FMM 500FMM 550FMM 630FMM 700FMM 102 6 4 Virtual Pre-Arcing Time In Seconds Virtual Pre-Arcing Time In Seconds 102 6 4 2 4 6 8 102 2 4 6 8 103 2 4 6 8 104 10–3 6 4 Prospective Current In Amps RMS 2 10–4 2 102 Peak Let-Through Curve 4 6 8 2 4 103 Prospective Current In Amps RMS 630FMM 6 550FMM 4 500FMM 450FMM 4 2 6 2 Peak Let-Through Current 4 Peak Let-Through Current 400FMM 350FM 315FM 280FM 250FM 225FM 200FM 180FM 104 2 103 6 4 2 100FE 90FE 80FE 71FE 63FE 50FE 45FE 40FE 35FE 102 6 4 104 8 6 4 2 103 200FEE 8 2 180FEE 6 2 4 6 102 2 4 6 103 2 4 6 104 2 4 6 105 2 160FEE 140FEE 4 120FEE 100FEE Prospective Short-Circuit Current Symmetrical RMS 2 102 2 4 6 103 2 4 6 104 2 4 Prospective Short-Circuit Current Symmetrical RMS Data Sheet: 35785314 194 104 700FMM 8 6 101 8 Peak Let-Through Curve 105 101 6 Data Sheet: 35785292 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 6 105 2