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
AMBL1
AMBL1
In Stock
From
$199.98
Siemens
E1X1PK
E1X1PK
In Stock
From
$141.80
Cutler Hammer
EZAUX10
EZAUX10
In Stock
From
$15.15
Merlin Gerin
FAS01LW
FAS01LW
In Stock
From
$39.57
General Electric
FAS01RW
FAS01RW
In Stock
From
$79.80
General Electric
KT3AS3
KT3AS3
In Stock
From
$353.52
ABB
S34AC2
S34AC2
In Stock
From
$325.51
Square D
S34DCT2
S34DCT2
In Stock
From
$163.31
Square D
S38AC2
S38AC2
In Stock
From
$1,867.84
Square D
TJKASA2AB1
TJKASA2AB1
In Stock
From
$268.07
General Electric
TJKASA2AB2
TJKASA2AB2
In Stock
From
$407.33
General Electric
2600D97G08
2600D97G08
In Stock
From
$83.40
Cutler Hammer
2609D45G03
2609D45G03
In Stock
From
$119.70
Cutler Hammer
458D013G05
458D013G05
In Stock
From
$1,057.33
Cutler Hammer
458D013G06
458D013G06
In Stock
From
$762.18
Cutler Hammer
458D013G13
458D013G13
In Stock
From
$770.95
Cutler Hammer
A9N26927
A9N26927
Limited Stock
From
Get Price
Schneider Electric
FAZ-XAM002
FAZ-XAM002
In Stock
From
$74.73
Eaton
FC11212
FC11212
In Stock
From
$41.39
Square D
HA265678
HA265678
In Stock
From
$532.61
Siemens
KA11212
KA11212
In Stock
From
$144.78
Square D
LA11284
LA11284
In Stock
From
$250.06
Square D
LA11289
LA11289
In Stock
From
$80.65
Square D
LC11364
LC11364
In Stock
From
$646.87
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.