Baumuller BM4400 - Page 274

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)
BM4412 310 A
2
s
BM4413 310 A
2
s
BM4414 325 A
2
s
BM4422 400 A
2
s
BM4423 450 A
2
s
BM4424 800 A
2
s
BM4425 800 A
2
s
BM4426 800 A
2
s
BM443X (generation 1) 1.500 A
2
s
BM443X (generation 2,
see ZExplanation version code– on page 130)
BM463X
9.500 A
2
s
BM444X
BM464X
b 16 200 A
2
s
BM445X
BM465X
BM475X
97 000 A
2
s
BM446X
BM466X
BM476X
245 000 A
2
s
BM447X
BM477X
1 051 000 A
2
s