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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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PDGXAB
PDGXAB
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Cutler Hammer
PDGXDB
PDGXDB
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Eaton
TFKAS2AB2
TFKAS2AB2
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General Electric
TFKAS6AB1
TFKAS6AB1
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General Electric
TFKAS6AB1LS
TFKAS6AB1LS
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General Electric
TFKAS6AB1RS
TFKAS6AB1RS
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General Electric
TFKAS6AB2LS
TFKAS6AB2LS
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General Electric
TFKAS6AB2RS
TFKAS6AB2RS
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General Electric
TFKASA2AB4RB
TFKASA2AB4RB
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General Electric
TFKASA2AB4RS
TFKASA2AB4RS
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General Electric
ZE1AUP
ZE1AUP
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ABB
ZE1AUPD
ZE1AUPD
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ABB
ZE1AUX15
ZE1AUX15
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ABB
ZE1AUX2-2D
ZE1AUX2-2D
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ABB
ZE1RTC
ZE1RTC
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ABB
ZE1RTCD
ZE1RTCD
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ABB
1371D11G06
1371D11G06
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Cutler Hammer
450036
450036
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General Electric
450037
450037
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General Electric
6591C25G51
6591C25G51
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Eaton
A2X6RA
A2X6RA
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Cutler Hammer
A3X4LTK
A3X4LTK
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Cutler Hammer
A3X4RTK
A3X4RTK
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Cutler Hammer
A3X5LTK
A3X5LTK
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Cutler Hammer

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.