Rexroth IndraDrive Fusing and Selecting the Mains Contactor 13-7
DOK-INDRV*-SYSTEM*****-PR02-EN-P
Fusing Branches within the Control Cabinet
In the wiring of the drive system components there are branches run from
main lines to short circuit protection devices.
For example, a branch from the supply feeder has to be run from the
output of the mains filters to the synchronization input of HMV01.1R
mains supply modules.
According to EN 60 204 part 1, 5.2.4, such supply lines to short circuit
protection devices branching off main lines do not need to be especially
protected against short circuit, when the following requirements have
been fulfilled:
• the supply lines to the short circuit protection device have at least the
cross section of the conductors at the output of the short circuit
protection device (line cross sections from and to motor circuit breaker
have the same size),
• no supply line to the short circuit protection device is longer than 3 m,
• the lines are protected against external influence by a housing or a
wiring duct,
• they are not run close to combustible material.
Branch to Synchronization Input
HMV01.1R
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