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Overload Relay Usage Matters
Sep 04, 2018

Overload relays can only be used as overload protection for control motors and cannot be used as short-circuit protection.

The rated current of the protected object must be known during installation, and the selection specification must be +20% of the rated current.

It is usually installed directly after the starter contactor (magnetic Switch) of the motor.

When the current is too high or because the load current exceeds the set, it will start the overload relay and broken circuit, although can be used by resetting the new button back access, but if the device overload relay start, can not arbitrarily adjust the setting of current, should be identified overload reasons, otherwise very easy to burn the device is protected.

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