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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.
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49EA42BEB
49EA42BEB
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$39.42
Siemens
49EA42GEB
49EA42GEB
In Stock
From
$20.73
Siemens
546-00303B
546-00303B
In Stock
From
$169.68
Siemens
5SJ6 1 167SC
5SJ6 1 167SC
In Stock
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$19.46
Siemens
5SJ6 2 40-7SC
5SJ6 2 40-7SC
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$27.71
Siemens
8WA1812
8WA1812
In Stock
From
$1.29
Siemens
B120BP
B120BP
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$21.79
Siemens
EF3B015Z
EF3B015Z
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$140.00
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QP115
QP115
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$14.01
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S5D013
S5D013
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$19.42
Siemens
W58-XB1A4A-35
W58-XB1A4A-35
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$4.24
Siemens
11-D-4525-01
11-D-4525-01
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Siemens
1FN3450-0TJ01-0AA0
1FN3450-0TJ01-0AA0
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$91.80
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2587705-8003-EACH
2587705-8003-EACH
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30407-025
30407-025
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$713.47
Siemens
3KA5230-1AE01
3KA5230-1AE01
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$664.54
Siemens
3KA5230-1GE01
3KA5230-1GE01
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3KA5330-1AE01
3KA5330-1AE01
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$1,100.87
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3KD0542-2LG20-3
3KD0542-2LG20-3
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3KD2640-2ME20-0
3KD2640-2ME20-0
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3KD3830-0PE20-0
3KD3830-0PE20-0
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3KD4230-0PE20-0
3KD4230-0PE20-0
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3KD9103-5
3KD9103-5
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3KD9315-3
3KD9315-3
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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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