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.
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 USA
