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 I2t (A2S) 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
nInterrupting rating 200kA (Estimated 300kA) RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
nWatts loss provided at rated current.
nMicroswitch 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/mm2(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 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.
Electrical Characteristics
Square Body – DIN 43 620
690V (IEC/U.L.) 10-315A
Total Clearing I2t
The total clearing I2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I2t is found by multi-
plying by correction factor, K, given as
a function of applied working voltage,
Eg, (RMS).
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%.
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, Kp,
is given as a function of the RMS load
current, Ib, 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 Eg
100 200 300 400 500 600 690
UL
1.4
1.2
103
6
8
7
9
5
4
3Eg
200 300 400 500 600 690
Kp
30 40 50 60 70 80 90 100%
Ib
1.0
0.8
0.4
0.5
0.6
0.3
0.2
0.1
®
7-11-01 SB01191
