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

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Installation and Connection

3.2.2 Power and Grounding Wiring, Circuit Breakers and Fuses

ATTENTION!
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ATTENTION!
Residual Current Device (RCD):
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NOTE!
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14 | CFW500
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Use proper cable lugs for the power and grounding connection cables.
Refer to Table B.1 on page 141
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.
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.
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
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for recommended wiring, circuit breakers
Table B.1 on page 141
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are orientative values.
Table B.1 on page 141.
Email: charles@automatedpt.com