Baumuller b maxx BM4400, Instruction Handbook Manual

Page: 274 / 360

Fuses
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07 Baumüller Nürnberg GmbH
274
of 358
11.2
Device protection Use semiconductor fuses with the tripping characteristic aR (DIN VDE 0636-201 / IEC
60269-2-1 / HD 630.2.1 54). Connect these in series with the cable protection fuses. In
the event of a short circuit, these protect the line-side rectifier unit circuit on the input side
against complete destruction, in order that it is possible to repair the device.
Dimension suitable device protection fuses depending on peak current and the maximum
load integral i
2
t
off
.
1)
Use fuses that fall below the specified cutoff integral (i
2
t
aus
) in the operating point .
Device Maximum load integral
1)
BM44 12

310 A
2
s
BM44 13

310 A
2
s
BM44 14

325 A
2
s
BM44 22

400 A
2
s
BM44 23

450 A
2
s
BM44 24

800 A
2
s
BM44 25

800 A
2
s
BM44 26

800 A
2
s
BM44 3X (generation 1)

1.500 A
2
s
BM44 3X (generation 2,
see Z Explanation version code – on page 130)
BM46 3X

9.500 A
2
s
BM44 4X
BM46 4X
b 16 200 A
2
s
BM44 5X
BM46 5X
BM47 5X

97 000 A
2
s
BM44 6X
BM46 6X
BM47 6X

245 000 A
2
s
BM44 7X
BM47 7X

1 051 000 A
2
s