form no. page 1 of 2 bif doc #720016 bussmann square body ?din 43 620 690v (iec/u.l.) 10-315A electrical characteristics ordering information curves din 000 rated i 2 t (a 2 s) type t carton current clearing watts indicator carton weight size rms-amps pre-arc at 660v loss for micro qty. (kg) bif # 10 3.8 25.5 3.0 170m1558 16 7.2 48 5.5 170m1559 20 11.5 78 7 170m1560 25 19 130 9 170m1561 32 40 270 10 170m1562 40 69 460 12 170m1563 50 115 770 15 170m1564 000 63 215 1450 16 170m1565 10 1.30 17056310 80 380 2550 19 170m1566 100 695 4650 24 170m1567 125 1200 8500 28 170m1568 160 2300 16000 32 170m1569 200 4200 28000 37 170m1570 250 7750 51500 42 170m1571 315 12000 80500 52 170m1572 n interrupting rating 200ka (estimated 300ka) rms symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg n watts loss provided at rated current. n microswitch indicator ordered separately. rated current the rated current of this fuse range has been given with copper conductors that have a current density of 1.3 a/mm 2 (iec 60269-4). for conductor cross section according to iec 60269-1, the fuses with a rated current higher than 125a must be derated. please contact bussmann for application assistance. 7-11-01 sb01191
form no. page 2 of 2 bif doc #720016 bussmann the only controlled copy of this bif document is the electronic read-only version located on the bussmann network drive. all ot her 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 en d 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. buss mann 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 43 620 690v (iec/u.l.) 10-315A total clearing i 2 t the total clearing i 2 t at rated voltage and at power factor of 15% are given in the electrical characteristics. for other volt- ages, the clearing i 2 t is found by multi- plying 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%. 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, i b , in % of the rated current . 54 max 79 48 21 6 35 15 indicator dimensions din 43 620: type din 000 dimension in mm. 1mm = 0.0394 1 = 25.4mm k 1.5 1.0 0.5 0.4 0.3 0.2 e g 100 200 300 400 500 600 690 u l 1.4 1.2 10 3 6 8 7 9 5 4 3 e g 200 300 400 500 600 690 k p 30 40 50 60 70 80 90 100% i b 1.0 0.8 0.4 0.5 0.6 0.3 0.2 0.1 7-11-01 sb01191
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