NEMA Contactors
NEMA contactors are made to standards designated by the National Electric Manufacturers Association (NEMA). Contactors are electromagnetic switches that open and close electrical circuits to turn multiple high-current connections on and off simultaneously. These electrically operated switches control high-voltage motors, machinery, equipment, and electrical systems. NEMA magnetic contactors have robust constructions that come in standard NEMA motor sizes and withstand harsh environments. They are serviceable with replaceable parts and have longer operational lives than IEC contactors.
Contactors combine with compatible overload relays to create motor starter assemblies. Compatible auxiliaries can be added to increase the functionality of contactors.
Non-Reversing NEMA Contactors
These NEMA contactors connect and disconnect power to motors, machinery, and other high-current equipment in a single direction. Contactors combine with overload relays to create motor load starters and provide overload protection. They can operate without overload relays but won't have protection from overcurrent. Compatible auxiliaries can be added to increase the functionality of contactors.
2 Pole ( 2NO Main Contacts) / Single Phase
Auxiliary Contacts Included: None
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3 Pole ( 3NO Main Contacts) / Three Phase
Auxiliary Contacts Included: None
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Auxiliary Contacts Included: 1NO
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Auxiliary Contacts Included: 1NO/1NC
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Reversing NEMA Contactors
These reversing NEMA contactors invert current flow to allow motors to operate in forward and reverse directions. They consist of a forward and a reverse contactor with an interlock system connecting them to prevent one contactor from operating while the other is powered. Reversing contactors are suitable for applications requiring motors to switch directions like pumps, conveyors, lifting and pulling mechanisms, and machine tools. Contactors combine with overload relays to create motor load starters and provide overload protection. They can operate without overload relays but won't have protection from overcurrent. Compatible auxiliaries can be added to increase the functionality of contactors.
3 Pole ( 3NO Main Contacts)
Auxiliary Contacts Included: 1NO
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3 Pole ( 3NO Main Contacts) / Three Phase
Auxiliary Contacts Included: 2NO/2NC
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Auxiliary Contacts Included: None
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Auxiliary Contacts Included: 1NO/1NC
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Enclosed Non-Reversing NEMA Contactors
3 Pole ( 3NO Main Contacts) / Three Phase
Auxiliary Contacts Included: None
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