1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Auxiliary

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.
SORT BY
Part Number
PRICE
Manufacturer
KXTCAXC42QW
KXTCAXC42QW
Limited Stock
From
Get Price
ABB
KXTCAXC4QSYFP
KXTCAXC4QSYFP
Limited Stock
From
Get Price
ABB
KXTCAXC4QSYW
KXTCAXC4QSYW
Limited Stock
From
Get Price
ABB
KXTCAXCD3QSYW
KXTCAXCD3QSYW
Limited Stock
From
Get Price
ABB
KXTCAXCDQSYW
KXTCAXCDQSYW
Limited Stock
From
Get Price
ABB
KXTCAXCS51FP
KXTCAXCS51FP
Limited Stock
From
Get Price
ABB
KXTCAXCS51W
KXTCAXCS51W
Limited Stock
From
Get Price
ABB
KXTCAXDS51FP
KXTCAXDS51FP
Limited Stock
From
Get Price
ABB
KXTCAXDS51W
KXTCAXDS51W
Limited Stock
From
Get Price
ABB
KXTDAUEOPFP
KXTDAUEOPFP
Limited Stock
From
Get Price
ABB
KXTF24OUT
KXTF24OUT
Limited Stock
From
Get Price
ABB
KXTF24TEST
KXTF24TEST
Limited Stock
From
Get Price
ABB
KXTF250OUT
KXTF250OUT
Limited Stock
From
Get Price
ABB
KXTF250TEST
KXTF250TEST
Limited Stock
From
Get Price
ABB
KXTFAUECLFP
KXTFAUECLFP
Limited Stock
From
Get Price
ABB
KXTFAUECLW
KXTFAUECLW
Limited Stock
From
Get Price
ABB
KXTFAUP24IN
KXTFAUP24IN
Limited Stock
From
Get Price
ABB
KXTFAUP250IN
KXTFAUP250IN
Limited Stock
From
Get Price
ABB
KXTMAUXDS33M2
KXTMAUXDS33M2
Limited Stock
From
Get Price
ABB
ME11212
ME11212
Limited Stock
From
Get Price
Square D
ME11352
ME11352
Limited Stock
From
Get Price
Square D
ME11364
ME11364
Limited Stock
From
Get Price
Square D
NA11364
NA11364
Limited Stock
From
Get Price
Square D
NSC100AUX
NSC100AUX
Limited Stock
From
Get Price
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.