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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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AX3111N
AX3111N
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Noark Electric
FA11218
FA11218
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Square D
FA11354
FA11354
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Square D
FA11364
FA11364
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Square D
FC11218
FC11218
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Square D
FC11354
FC11354
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Square D
FC11364
FC11364
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Square D
KC11364
KC11364
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Square D
KT7XAS2L
KT7XAS2L
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ABB
KT8AS4L
KT8AS4L
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ABB
KXT5AUXC2Q3YW
KXT5AUXC2Q3YW
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ABB
KXT5AUXC3Q3YW
KXT5AUXC3Q3YW
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ABB
KXTFAUXCDS52FP
KXTFAUXCDS52FP
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ABB
TFKAS2AB2LS
TFKAS2AB2LS
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General Electric
TFKAS2AB2RS
TFKAS2AB2RS
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General Electric
TFKAS2AB4
TFKAS2AB4
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General Electric
TFKAS2AB4LS
TFKAS2AB4LS
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General Electric
TFKAS2AB4RS
TFKAS2AB4RS
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General Electric
TFKASA6AB1LB
TFKASA6AB1LB
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General Electric
TFKASA6AB1LS
TFKASA6AB1LS
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General Electric
TFKASA6AB1RB
TFKASA6AB1RB
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General Electric
TFKASA6AB1RS
TFKASA6AB1RS
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General Electric
TFKASA6AB2LB
TFKASA6AB2LB
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General Electric
TFKASA6AB2LS
TFKASA6AB2LS
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General 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.