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Circuit Breaker Part & Accessory

For circuit breaker systems in electrical distribution infrastructure, parts and accessories are among the most essential components for proper installation, maintenance, and operational reliability. These components enable secure mounting, proper connections, system integration, and ongoing maintenance of circuit breaker equipment throughout its operational lifecycle. Electrical.com carries an extensive selection of parts and accessories from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of industrial facilities, commercial buildings, power distribution systems, and electrical panel installations.
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Part Number
PRICE
Manufacturer
5431-125-021
5431-125-021
Limited Stock
From
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Sandvik
54365A
54365A
In Stock
From
$30.33
Jewell Instruments
545 829
545 829
In Stock
From
$20.30
Siemens
545-827
545-827
In Stock
From
$35.03
Siemens
548381-101
548381-101
In Stock
From
$139.94
Triplett
549-78AA-LSMT-SM
549-78AA-LSMT-SM
In Stock
From
$65.07
TE Connectivity
549-78AA-LSNG-SM
549-78AA-LSNG-SM
In Stock
From
$24.97
TE Connectivity
549-78AA-LSNW-SM
549-78AA-LSNW-SM
In Stock
From
$67.41
TE Connectivity
549-78AA-LSPB-SM
549-78AA-LSPB-SM
In Stock
From
$42.39
TE Connectivity
549-78AA-LSRS-SM
549-78AA-LSRS-SM
In Stock
From
$67.41
TE Connectivity
549220
549220
Limited Stock
From
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Erico
5500.2062
5500.2062
Limited Stock
From
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Schurter
5500.2186
5500.2186
In Stock
From
$94.25
Schurter
5500.2232
5500.2232
In Stock
From
$74.72
Schurter
5507/1/1/0010/0/0010/010-VOLTS
5507/1/1/0010/0/0010/010-VOLTS
Limited Stock
From
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Parker
5507/1/1/0350/0/0350/005/AMPS/00
5507/1/1/0350/0/0350/005/AMPS/00
Limited Stock
From
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Parker
5515-A2D
5515-A2D
Limited Stock
From
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Pr Electronics
552934
552934
In Stock
From
$59.12
Ametek
554142
554142
In Stock
From
$1.92
Ametek
554175
554175
In Stock
From
$216.12
Heraeus
5544S
5544S
Limited Stock
From
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Honeywell
5550
5550
In Stock
From
$25.76
Legrand
555P0D25
555P0D25
In Stock
From
$226.23
Marechal Electric Sa
556189-1
556189-1
In Stock
From
$49.12
TE Connectivity

Electrical.com stocks the largest inventory of circuit breaker parts and accessories in the world, with over 1 million square feet of new, used, surplus, and re-certified components available for immediate shipment. From replacement parts to essential accessories, we have what you need when others say no. Our comprehensive circuit breaker parts and accessories inventory spans all configurations and specifications 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 circuit breaker parts and accessories serve critical applications across industrial facilities, commercial buildings, manufacturing plants, power distribution systems, electrical panels, switchgear installations, and maintenance operations.


Whether you're maintaining legacy equipment with obsolete parts or sourcing current production accessories for new installations, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need circuit breaker parts and accessories 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.