Identifying mechanically held contactor versus electrically held contactor

Issue:
How to tell whether lighting contactor is mechanically held or electrically held

Product Line:
8903 Lighting contactors

Environment:
Products sold and used in the United States

Cause:
Catalog numbers are not always known and visual identification must be performed.

Resolution:
Electrically held contactors have a single coil which is continuously energized to engage the power contacts.  Mechanically held contactors have two different coils, a latching coil and an unlatching coil.  These coils are only momentarily energized to engage or disengage the power contacts.

Released for: Schneider Electric Canada