Fuses
Instruction handbook
b maXX
5000
Document No.: 5.09021.16
Baumüller Nürnberg GmbH
262
11.2
Protection of the
devices
Use semiconductor fuses with the tripping characteristic aR (VDE 0636-201 / DIN EN
60269-2-1 / HD 630.2.1 54). In the event of a short circuit, these protect the mains 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
.
Device
Maximum load integral
1)
BM5
030
550 A²s
BM5
031
BM5
032
1000 A²s
BM5
043
BM5
044
9500 A²s
BM5
173
BM5
173
3000 A²s
BM5
19X
88000 A²s
BM5
3XX
Fuses integrated in the DC link
1)
Use fuses that fall below the specified cutoff integral (i
2
t
off
)
in the operating point
.
11.2.1 BM5030
m
Semiconductor fuses aR (device) BM5030, type NH (for CE only)
Bussmann
Class J: DFJ-15
U
Siemens
3NC1 415: 15 A, 14x51
3NC1 420: 20 A, 14x51
Size
11.2.2 BM5031, BM5032
m
Semiconductor fuses aR (device) BM5031; BM5032, type NH (for CE only)
Bussmann
00 25A/1000V: 170M2674
32A/1000V: 170M2675
40A/1000V: 170M2676
1 40A/660V: 170M3808
50A/660V: 170M3809
63A/660V: 170M3810
Class J: DFJ-25
U
for BM5031
Class J: DFJ-35
U
for BM5032
Ferraz Shawmut
000 25A/690V: 6.9 URD 000 PV 025
32A/690V: 6.9 URD 000 PV 032
40A/690V: 6.9 URD 000 PV 040
50A/690V: 6.9 URD 000 PV 050
Siemens
00 40A/660V: 3NE8 702
3NC1 415: 25 A, 14x51 for BM5031 3NC1 415: 40 A, 14x51 for BM5031
Size
