High Speed Fuses Square Body US Style — 1250V/1300V (IEC/UL): 50-1400A Arc Voltage 3 1250V/1300V (IEC/UL) 50-1400A U 2.5 L This curve gives the peak Specifications 1.8 arc voltage, U , which L D De es sc cr riip pt tiio on n: : Square body US 1.4 may appear across the style high speed fuses. 3 fuse during its operation 10 D Diim me en ns siio on ns s: : See dimensions as a function of the 8 illustration. applied working voltage, 6 R Ra at tiin ng gs s: : 5 E , (rms) at a power factor g 4 Volts: — 1250Vac (IEC) of 15%. E g 3 — 1300Vac (UL) 400 600 800 1000 1200 1400 Power Losses Amps: — 50-1400A 1.0 Watts loss at rated current Kp IR: — 100kA RMS Sym. 0.8 is given in the electrical A Ag ge en nc cy y IIn nf fo or rm ma at tiio on n: : CE, 0.6 characteristics. The curve Designed and tested to IEC 0.5 allows the calculation of 60269: Part 4, UL Recognized. 0.4 the power losses at load Consult Cooper Bussmann for UL 0.3 currents lower than the Recognition/CSA Component rated current. The 0.2 Acceptance status. correction factor, K , is p 1.5 given as a function of the K Electrical 1.25 I b RMS load current, I , in % 1.0 0.1 b Characteristics 30 40 50 60 70 80 90 100% of the rated current. 2 Total Clearing I t Features and Benefits 0.5 2 The total clearing I t at • Excellent DC performance 0.4 2 rated voltage and at power • Low arc voltage and low energy let-through (I t) 0.3 factor of 15% are given in • Low watts loss the electrical • Superior cycling capability 0.2 E characteristics. For other g 2 Typical Applications voltages, the clearing I t is 400 600 800 1000 1200 1400 • DC common bus found by multiplying by Dashed lines (- - - - - -) apply to the following amperages:. • DC drives correction factor, K, given as S Siiz ze e A Am mp ps s.. • Power converters/rectifiers a function of applied working 1* 400A • Reduced voltage starters voltage, E , (rms). 1 500-630A g 2 630-1000A 3 800-1400A For Other Voltage Ratings in This Body Style Dimensions (mm) • See pages 126 (690V/700V) and 150 (1000V) Type -FU/115, -FKE/115 S Siiz ze e B B C C1 1 C C2 2 D D E E H H II 1* 156 130 101 59 45 20 10 1 160 127 102 69 53 25 14 2 160 127 102 77 61 25 14 3 159 128 101 92 76 36 16 1mm = 0.0394” / 1” = 25.4mm B 6 A D C1 E C2 E I H For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 164 High Speed Fuses High Speed Fuses Square Body US Style — 1250V/1300V (IEC/UL): 50-1400A Catalog Numbers C Ca at ta allo og g N Nu um mb be er rs s E Elle ec ct tr riic ca all C Ch ha ar ra ac ct te er riis st tiic cs s - -F FK KE E//1 11 15 5 2 2 2 2 - -F FU U//1 11 15 5 T Ty yp pe e K K R Ra at te ed d II t t ( (A A S Se ec c) ) W Wiit th ho ou ut t IIn nd diic ca at to or r C Cu ur rr re en nt t C Clle ea ar riin ng g C Clle ea ar riin ng g W Wa at tt ts s IIn nd diic ca at to or r f fo or r M Miic cr ro o S Siiz ze e R RM MS S- -A Am mp ps s P Pr re e- -a ar rc c a at t 1 10 00 00 0V V a at t 1 12 25 50 0V V L Lo os ss s 170M3688 170M3738 50 135 815 1100 15 170M3689 170M3739 63 215 1300 1750 20 170M3690 170M3740 80 420 2500 3350 25 170M3691 170M3741 100 750 4450 5950 30 170M3692 170M3742 125 1450 9000 11500 35 170M3693 170M3743 1* 160 2600 16000 21000 40 170M3694 170M3744 200 5150 31000 41000 45 170M3695 170M3745 250 9200 54500 73000 55 170M3696 170M3746 315 18500 115000 150000 60 170M3697 170M3747 350 27000 165000 220000 65 170M4688 170M4738 160 1900 11500 15500 45 170M4689 170M4739 200 3800 22500 30000 50 170M4690 170M4740 250 7750 46000 61500 60 170M4691 170M4741 315 15000 90000 120000 65 170M4692 170M4742 1 350 20000 125000 165000 70 170M4693 170M4743 400 29500 175000 235000 75 170M4694 170M4744 450 42000 250000 335000 80 170M4695 170M4745 500† 69500 340000 85 170M4696 170M4746 550† 95000 465000 95 170M4697 170M4747 630‡ 130000 660000 100 170M5688 170M5738 250 6500 38500 51500 65 170M5689 170M5739 280 9350 55500 74500 70 170M5690 170M5740 315 13000 77500 105000 75 170M5691 170M5741 350 16500 97500 135000 80 170M5692 170M5742 400 23000 140000 180000 85 170M5693 170M5743 450 34000 205000 270000 90 170M5694 170M5744 2 500 48000 285000 380000 95 170M5695 170M5745 550 62000 370000 495000 100 170M5696 170M5746 630 115000 575000 730000 110 170M5697 170M5747 700† 160000 795000 115 170M5698 170M5748 800† 245000 1200000 120 170M5699 170M5749 900‡ 360000 1750000 125 170M5700 170M5750 1000‡ 480000 2350000 135 170M6688 170M6738 315 9500 58000 77500 185 170M6689 170M6739 350 13500 81500 110000 90 170M6690 170M6740 400 19500 120000 160000 95 170M6691 170M6741 450 31000 185000 245000 100 170M6692 170M6742 500 39000 235000 310000 105 170M6693 170M6743 550 55000 325000 435000 110 170M6694 170M6744 3 630 83500 495000 665000 115 170M6695 170M6745 700 115000 705000 940000 120 170M6696 170M6746 800 205000 995000 1300000 125 170M6697 170M6747 900 305000 1500000 1900000 130 170M6698† 170M6748† 1000¥ 450000 2150000 135 170M6699† 170M6749† 1100¥ 575000 2800000 140 170M6700‡ 170M6750‡ 1250¥ 810000 3950000 145 170M6701‡ 170M6751‡ 1400¥ 1250000 6000000 150 †Rated voltage (IEC) 1100. ‡Rated voltage (IEC) 1000V. ¥ UL Recognition at 1000V. • Watts loss provided at rated current. • Microswitch indicator ordered separately. See accessories on pages 185-186. • For fuse curves see pages 166 and 167. For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 165 High Speed Fuses Square Body Size 1*, 1 — 1250V/1300V (IEC/UL): 50-1400A Size 1* — 50-400A:1250V Size 1 — 160-630A: 1250V Time-Current Curve Time-Current Curve 4 10 3 10 2 10 A A 1 10 0 10 –1 10 –2 10 –3 10 –4 1x10 2 3 4 5 1x10 10 10 10 Prospective Current In Amp RMS Peak Let-Through Curve Peak Let-Through Curve 5 10 5 10 B B 630A 550A 400A 500A 450A 350A 400A 315A 350A 315A 250A 250A 200A 160A 200A 125A 160A 4 10 100A 4 10 80A 63A 50A � 3 10 3 10 A A 2 2x10 2 2 3 4 5 6 2x10 1x10 10 10 10 10 2 3 4 5 6 1x10 10 10 10 10 Prospective Short-Circuit Current Symmetrical RMS Prospective Short-Circuit Current Symmetrical RMS 630A fuse is derated to 1100V (IEC). Data Sheet: 17056630 Data Sheet: 17056632 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 166 Peak Let-Through Current Peak Let-Through In Amperes Virtual Pre-Arcing Time In Seconds 160A 200A 250A 315A 350A 400A 450A 500A 550A 630A High Speed Fuses High Speed Fuses Square Body Size 2, 3 — 1250V/1300V (IEC/UL): 50-1400A Size 2 — 250-1000A: 1250V Size 3 — 315-1400A: 1250V Time-Current Curve Time-Current Curve 4 10 3 10 2 10 A A 1 10 0 10 –1 10 –2 10 –3 10 –4 1x10 2 3 4 5 1x10 10 10 10 Prospective Current In Amp RMS Peak Let-Through Curve Peak Let-Through Curve 1400A 5 5 10 1250A 10 1100A 1000A 1000A B B 900A 900A 800A 800A 700A 700A 630A 630A 550A 550A 500A 500A 450A 450A 400A 400A 350A 350A 315A 280A 315A 250A 4 4 10 10 3 3 10 10 A A 2 2 2x10 2x10 2 3 4 5 6 2 3 4 5 6 1x10 10 10 10 10 1x10 10 10 10 10 Prospective Short-Circuit Current Symmetrical RMS Prospective Short-Circuit Current Symmetrical RMS 900-1000A fuses are derated to 1100V (IEC). 1250-1400A fuses are derated to 1100V (IEC). Data Sheet: 17056634 Data Sheet: 17056636 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 167 Peak Let-Through Current Virtual Pre-Arcing Time In Seconds 250A 280A 315A 350A 400A 450A 500A 550A 630A 700A 800A 900A 1000A Peak Let-Through Current