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
A1X5LTK
A1X5LTK
In Stock
From
$239.34
Cutler Hammer
A2X1RTK
A2X1RTK
In Stock
From
$382.71
Cutler Hammer
A2X2RTK
A2X2RTK
In Stock
From
$283.59
Cutler Hammer
A2X3RTK
A2X3RTK
In Stock
From
$242.57
Cutler Hammer
A2X4RTK
A2X4RTK
In Stock
From
$225.51
Cutler Hammer
A2X5RTK
A2X5RTK
In Stock
From
$370.01
Cutler Hammer
A3X3LPK
A3X3LPK
In Stock
From
$692.87
Cutler Hammer
A3X5RPK
A3X5RPK
In Stock
From
$711.19
Cutler Hammer
A4X6RPK
A4X6RPK
In Stock
From
$248.49
Cutler Hammer
AA215RPK
AA215RPK
In Stock
From
$425.59
Cutler Hammer
AAL1LPK
AAL1LPK
In Stock
From
$146.65
Cutler Hammer
AAL2LPK
AAL2LPK
In Stock
From
$382.93
Cutler Hammer
AAL2RPK
AAL2RPK
In Stock
From
$444.76
Cutler Hammer
ASKE2
ASKE2
In Stock
From
$391.68
Siemens
ASKE3
ASKE3
In Stock
From
$629.22
Siemens
ASKL2
ASKL2
In Stock
From
$734.94
Siemens
CQDA1
CQDA1
In Stock
From
$166.94
Siemens
CQDA2
CQDA2
In Stock
From
$112.27
Siemens
FAS10LW
FAS10LW
In Stock
From
$58.17
General Electric
FAS10R
FAS10R
Limited Stock
From
Get Price
General Electric
K7BA
K7BA
In Stock
From
$387.53
ABB
KT3AS
KT3AS
In Stock
From
$125.07
ABB
MA11284
MA11284
In Stock
From
$61.25
Square D
MA11364
MA11364
In Stock
From
$1,061.23
Square D

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.