Letter Ov

Overcurrent A current in excess of the rated current for a device or
conductor. An overcurrent can result from an overload, short
circuit, or ground fault.

Overload
Can refer to an operating condition in excess of the full-load
rating or a current high enough to cause damage if it is present
long enough. Short circuits and ground faults are not overloads.

Overload Relay
A device used to protect a motor from damage resulting from
an overload.


Overload Relay Class

Defines the length of time an overload condition can exist
before an overload relay trips. For example, a class 10 overload
relay allows 600% of full load amperes for up to 10 seconds.