Form No.

Page 2 of 2

BIF Doc #720015

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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 43 653

690V/700V (IEC/U.L.)

40-2000A

The total clearing I

at power factor of 15% are given in the

electrical characteristics. For other volt-

ages, the clearing I

plying by correction factor, K , given as

a function of applied working voltage,

Arc Voltage

This curve gives the peak arc voltage,

during its operation as a function of the

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

is given as a function of the RMS load

C

B

A

H

11

6

E

E

D

Size

A

B

B§

CC§

DE

H

1*

50

104

134

78

108

59

45

22

1

50

108

138

78

108

69

53

25

2

50

108

138

78

108

77

61

25

3

51

109

139

78

108

92

76

30

§Valid for fuse type -KN/110.

Dimension in mm.

1mm = 0.0394∑

1∑ = 25.4mm

Dimensions

DIN 43 653: Type -KN/80, -KN/110

100 200 300 400 500 600 690

K

1.5

1.0

0.5

0.4

0.3

0.2

E

g

1)

2)

U

L

1.4

1.2

6

8

7

9

5

4

3

E

g

200

300

400

500

600 690

1.0

0.8

0.4

0.5

0.6

0.3

0.2

0.1

30 40 50

60

70

80 90 100%

I

b

1) Rated voltage 600V

2) Rated voltage 550V

®

7-11-01

SB01191

R