Power And Grounding Wiring, Circuit Breakers And Fuses - Weq CFW500 Serie Manual Del Usuario

Installation and Connection

3.2.2 Power and Grounding Wiring, Circuit Breakers and Fuses

ATTENTION!
Use proper cable lugs for the power and grounding connection cables.
„
Refer to
and fuses.
Keep sensitive equipment and wiring at a minimum distance of 0.25 m from the
„
inverter and from the cables connecting the inverter to the motor.
It is not recommended the use of mini circuit breakers (MDU), because of
„
the actuation level of the magnet.
ATTENTION!
Residual Current Device (RCD):
When installing an RCD to guard against electrical shock, only devices with
„
a trip current of 300 mA should be used on the supply side of the inverter.
Depending on the installation (motor cable length, cable type, multimotor
„
configuration, etc.), the RCD protection may be activated. Contact the RCD
manufacturer for selecting the most appropriate device to be used with
inverters.
NOTE!
The wire gauges listed in
„
Installation conditions and the maximum permitted voltage drop must be
considered for the proper wiring sizing.
In order to meet UL requirements, use ultra fast fuses at the inverter supply
„
with a current not higher than the values presented in
14 | CFW500
Table B.1 on page 141
Table B.1 on page 141
for recommended wiring, circuit breakers
are orientative values.
Table B.1 on page 141.