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Circuit Breaker

For power distribution and electrical protection systems, circuit breakers are among the most critical components for safeguarding equipment, personnel, and facilities from electrical overloads and short circuits. Circuit breakers automatically interrupt electrical current flow when abnormal conditions are detected, protecting circuits from damage while allowing manual reset and continued operation. Electrical.com carries an extensive selection of circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
Popular Categories
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Poles
QN2150H
QN2150H
In Stock
From
$253.36
Siemens
150
-
QN2150R
QN2150R
In Stock
From
$92.13
Siemens
150
-
QN2175
QN2175
In Stock
From
$224.47
Siemens
175
2
QN2200
QN2200
In Stock
From
$217.48
Siemens
200
2
QN2200H
QN2200H
In Stock
From
$226.64
Siemens
200
2
QNBL2030
QNBL2030
In Stock
From
$48.71
Westinghouse
30
2
QNBL2040
QNBL2040
In Stock
From
$49.64
Westinghouse
40
2
QNPL2020
QNPL2020
In Stock
From
$17.22
Westinghouse
20
2
QNPL2030
QNPL2030
In Stock
From
$10.49
Westinghouse
30
2
QNPL2040
QNPL2040
In Stock
From
$36.28
Westinghouse
40
2
QNPL2050
QNPL2050
In Stock
From
$45.53
Westinghouse
50
2
QO112L125G
QO112L125G
In Stock
From
$72.78
Square D
125
-
QO112L125GRB
QO112L125GRB
In Stock
From
$131.83
Square D
125
-
QO120M100
QO120M100
In Stock
From
$376.73
Square D
100
-
QO120VHPAF
QO120VHPAF
In Stock
From
$535.07
Schneider Electric
20
1
QO124L125GRB
QO124L125GRB
In Stock
From
$280.00
Square D
125
-
QO124M200
QO124M200
In Stock
From
$387.50
Square D
200
-
QO130M150
QO130M150
In Stock
From
$345.40
Square D
150
-
QO132L125G
QO132L125G
In Stock
From
$169.71
Square D
125
-
QO1PAF
QO1PAF
In Stock
From
$39.46
Square D
-
-
QO2100BNRB
QO2100BNRB
In Stock
From
$137.37
Square D
100
-
QO2100BNS
QO2100BNS
In Stock
From
$59.17
Square D
100
-
QO215GFI
QO215GFI
In Stock
From
$130.24
Square D
15
2
QO2175SB
QO2175SB
In Stock
From
$147.48
Square D
-
-
Popular Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit protection equipment available for immediate shipment. From residential to industrial applications, across all voltage and amperage ratings, we have what you need when others say no. Our comprehensive circuit breaker inventory spans all voltage classes, amperage ratings, and pole configurations 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 breakers serve critical applications across manufacturing facilities, commercial buildings, data centers, healthcare facilities, utilities and power generation, industrial plants, residential construction, telecommunications infrastructure, and process control installations.


Whether you're maintaining legacy equipment with obsolete circuit breaker models or sourcing current production components for new electrical systems, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime and keep your operations running. Need 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.

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