Liquid Cool. = Liquid cooling. Temperature on the terminals not to exceed 60°C.
Microswitch indicator ordered separately.
1 kg = 2.2 lbs.
1 lb = 0.45 kg
7-11-01
SB01191
Form No.
Page 1 of 2
BIF Doc #720020
Bussmann
®
Square Body – Flush End Contact
690V (IEC)
1000-4000A
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%.
®
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).
1.5
K
1.0
1)
Power Losses
Watts loss at rated current is given in
the electrical characteristics. The curve
allows the calculation of the power loss-
es at load currents lower than the rated
current. The correction factor, K p , is
given as a function of the RMS load cur-
rent, Ib , in % of the rated current .
1.0
K
p
0.8
0.6
0.5
0.4
0.3
0.2
0.5
0.4
0.3
0.2
E
g
100 200 300 400 500 600 690
1) Rated voltage 600V
1.4
1.2
10
3
9
8
7
6
5
4
3
U
L
E
g
200
300
400
500
600 690
0.1
30 40 50
60
70
I
b
80 90 100%
Dimensions
Flush End Contact: Type 4B/-, 4BKN/-, 4G/-, 4GKN/-
Size
4B
4G
F
M10 10 deep
⁄Ω™∑
-13 UNC-2B 10 deep
G
33
38
Dimension in mm.
1mm = 0.0394∑
1∑ = 25.4mm
105
F
Ø4
G
105
15
Ø56
53
67
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.
7-11-01
SB01191
Form No.
Page 2 of 2
BIF Doc #720020
Mouser Electronics
Authorized Distributor
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