Interrupting rating 200kA RMS Symmetrical.
Watts loss provided at rated current.
700 Vdc ratings for 5 through 30 amperes only. Consult Bussmann for
See accessories on page 90.
Fig. 1
1 kg = 2.2 lbs.
other ratings.
Fig. 1: 1-50 Amp Range
Dimension in mm.
1mm = 0.0394鈭?/div>
1鈭?= 25.4mm
Electrical Characteristics
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).
1.4
1.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1)
2)
300
400
500
600
E
g
3
700
200
300
400
500
600
1) 5-30 Amp Range
2) 32-50 Amp Range
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.
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 .
1.0
K
p
0.8
0.6
0.5
0.4
0.3
0.2
K
1.4
1.2
10
3
9
8
7
6
5
4
U
L
0.3
200
E
g
700
0.1
30 40 50
I
b
60
70
80 90 100%
12-28-98
SB98107
Rev. A
Form No.
Page 1 of 1
BIF Doc #720025
1
