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Auxiliary

For circuit breaker systems in power distribution and control applications, auxiliaries are among the most essential components for providing additional switching contacts and control functionality. Auxiliary circuit breakers provide supplementary contacts that enable remote monitoring, status indication, and control integration with other electrical systems and automation equipment. Electrical.com carries an extensive selection of auxiliary circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of industrial control panels, building automation systems, power distribution equipment, and process control applications.
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TB4ASA2AB4R
TB4ASA2AB4R
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General Electric
TB4ASA6AB1L
TB4ASA6AB1L
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General Electric
TB4ASA6AB1R
TB4ASA6AB1R
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General Electric
TB4ASA6AB2L
TB4ASA6AB2L
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General Electric
TB4ASA6AB2R
TB4ASA6AB2R
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General Electric
TB4ASA6AB3L
TB4ASA6AB3L
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General Electric
TB4ASA6AB3R
TB4ASA6AB3R
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General Electric
TB4ASA6AB4L
TB4ASA6AB4L
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General Electric
TB4ASA6AB4R
TB4ASA6AB4R
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General Electric
29450-AA
29450-AA
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Merlin Gerin
29450-AB
29450-AB
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Merlin Gerin
29452-AE
29452-AE
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Merlin Gerin
29452-AF
29452-AF
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Merlin Gerin
29452-BJ
29452-BJ
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Merlin Gerin
39965
39965
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Merlin Gerin
430837
430837
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General Electric
AA214RPK
AA214RPK
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Cutler Hammer
AA214RTK
AA214RTK
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Cutler Hammer
AA314LPK
AA314LPK
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Cutler Hammer
AMBP2
AMBP2
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Siemens
E2X1LPK
E2X1LPK
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Cutler Hammer
E2X1RPK
E2X1RPK
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Cutler Hammer
K5BA
K5BA
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ABB
S32605
S32605
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Schneider Electric

Electrical.com stocks the largest inventory of auxiliary circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit breaker components available for immediate shipment. From auxiliary contacts to trip units and accessory modules, we have what you need when others say no. Our comprehensive auxiliary circuit breaker inventory spans all configurations and ratings from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our auxiliary circuit breakers serve critical applications across power distribution systems, industrial control panels, switchgear installations, motor control centers, electrical substations, manufacturing facilities, and commercial building electrical systems.


Whether you're maintaining legacy equipment with obsolete auxiliary components or sourcing current production parts for new installations, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need auxiliary circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.