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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.
SORT BY
Part Number
PRICE
Manufacturer
A1X4PK
A1X4PK
In Stock
From
$128.29
Eaton
MAUX2
MAUX2
In Stock
From
$747.84
Cutler Hammer
4979D06G03
4979D06G03
In Stock
From
$529.29
Westinghouse
A1X2LTK
A1X2LTK
In Stock
From
$427.10
Cutler Hammer
A2X2LTK
A2X2LTK
In Stock
From
$293.23
Cutler Hammer
AA115LPK
AA115LPK
In Stock
From
$243.88
Cutler Hammer
MAAL1RPK
MAAL1RPK
In Stock
From
$570.16
Cutler Hammer
1371D72G03
1371D72G03
In Stock
From
$273.94
Cutler Hammer
1372D35G03
1372D35G03
In Stock
From
$552.71
Cutler Hammer
A1X5PK
A1X5PK
In Stock
From
$140.12
Cutler Hammer
1493D44G02
1493D44G02
In Stock
From
$128.53
Cutler Hammer
A1X1LB
A1X1LB
In Stock
From
$126.73
Cutler Hammer
A1X1RTK
A1X1RTK
In Stock
From
$159.22
Cutler Hammer
A1X4LTK
A1X4LTK
In Stock
From
$336.37
Cutler Hammer
A1X5RTK
A1X5RTK
In Stock
From
$227.37
Eaton
A2X2PK
A2X2PK
In Stock
From
$137.01
Eaton
A2X5PK
A2X5PK
In Stock
From
$219.85
Cutler Hammer
A3X5LPK
A3X5LPK
In Stock
From
$594.07
Cutler Hammer
AA115RPK
AA115RPK
In Stock
From
$450.09
Cutler Hammer
AAL1LTK
AAL1LTK
In Stock
From
$130.71
Cutler Hammer
AAL1RPK
AAL1RPK
In Stock
From
$506.71
Cutler Hammer
AAL1RTK
AAL1RTK
In Stock
From
$419.09
Eaton
AAL3RPK
AAL3RPK
In Stock
From
$164.45
Cutler Hammer
AUX2A2BPK
AUX2A2BPK
In Stock
From
$338.00
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.