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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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Part Number
PRICE
Manufacturer
A01FDLV
A01FDLV
In Stock
From
$120.19
Siemens
A01JLDLV
A01JLDLV
In Stock
From
$123.44
Siemens
A02ED62B
A02ED62B
In Stock
From
$154.14
Siemens
ASKL2
ASKL2
In Stock
From
$616.10
Siemens
CQDA1BA
CQDA1BA
In Stock
From
$367.27
Siemens
3VA9978-0AA23
3VA9978-0AA23
Limited Stock
From
Get Price
Siemens
HA265678
HA265678
In Stock
From
$532.61
Siemens
3VA9978-0AA11
3VA9978-0AA11
In Stock
From
$130.85
Siemens
3VA9978-0AA12
3VA9978-0AA12
In Stock
From
$75.08
Siemens
SB4AS2
SB4AS2
In Stock
From
$399.17
Siemens
A01EDLV
A01EDLV
In Stock
From
$203.99
Siemens
A02HP0R0
A02HP0R0
In Stock
From
$9.09
Siemens
A03HP0R0
A03HP0R0
In Stock
From
$141.74
Siemens
AMBL1
AMBL1
In Stock
From
$199.98
Siemens
3RV1901-2C
3RV1901-2C
In Stock
From
$17.18
Siemens
3VA9978-0AA21
3VA9978-0AA21
In Stock
From
$248.46
Siemens
3TY6561-1A
3TY6561-1A
In Stock
From
$163.62
Siemens
A01QJ0R3
A01QJ0R3
In Stock
From
$145.79
Siemens
A01QR2
A01QR2
In Stock
From
$258.99
Siemens
A02QJ0R3
A02QJ0R3
In Stock
From
$171.18
Siemens
A01F62
A01F62
In Stock
From
$5.71
Siemens
A01KM0R0
A01KM0R0
In Stock
From
Get Price
Siemens
A02JLDLV
A02JLDLV
In Stock
From
$74.73
Siemens
A01F64
A01F64
In Stock
From
Get Price
Siemens

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.