Accessories and Spare Parts
Instruction handbook b maXX BM3000, BM3200, BM3300
Document no. 5.11018.11
191
of 218
11
11.2 Fuses
There is a difference between the protection of the power supply cables and the protec-
tion of the device. Operate the device BM3000, BM3200, BM3300 with cable protection
and device protection fuses, only.
11.2.1 Cable protection
Use fuses of utilization category gL DIN VDE 0636-201 / IEC 60269-2-1 / HD 630.2.1 54
or circuit-breaker tripping characteristic K according to DIN VDE 0636-201 / IEC 60269-
2-1 / HD 630.2.1 54, to protect the cable. These fuses protect against overloads and the
consequential damages of faults e. g fire. They cannot avoid, that the device is extensive-
ly destructed by a short-circuit or by a ground fault in the DC-link.
Execute protection compliant with EN 60204-1 („Electrical Equipment of Machines“). Di-
mension the fuses dependent of the used interface of the power supply cable according
to the accordantly valid national standard and the local regulations.
The current carrying capacity of fuses is defined in the table 5 of the EN60204-1. The ac-
cording value must be calculated self in the standard, in order to use it. Here is an extract
Use suitable fuses with a tripping characteristic gL.
11.2.2 Device protection
Use semiconductor fuses with the tripping characteristic aR (DIN VDE 0636-201 / IEC
60269-2-1 / HD 630.2.1 54). Connect in series to the cable protection fuse. They protect
the input-sided rectifier circuit in case of a short-circuit against complete destruction, mak-
ing a repair of the device necessary.
Dimension the device protection fuses dependent on the peak current and the required
I
2
t value.
1)
Use fuses, which switch off I
2
t value is below the maximum load I
2
t value of the device.
NOTE!
Approved, UL-listed safety fuses must be used in UL-authorized systems, refer to
ZUL notes– from page 55.
Cable interface Rated fuse current
1.5 mm
2
16.1 A
2.5 mm
2
22 A
Device Maximum load I
2
t value
1)
BM30XX: 365 A
2
s
BM32XX, BM33XX 200 A
2
s
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