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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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Part Number
PRICE
Manufacturer
Amperage
Poles
5SJ6350-7
5SJ6350-7
Limited Stock
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Siemens
50
3
5SJ6350-7SC
5SJ6350-7SC
In Stock
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$32.74
Siemens
50
3
5SJ6410-7
5SJ6410-7
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Siemens
10
3
5SP4192-6
5SP4192-6
In Stock
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$63.00
Siemens
125
1
5SP43637
5SP43637
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Siemens
63
3
5SP44507
5SP44507
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Siemens
100
4
5SP44637
5SP44637
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Siemens
63
4
5SP4491-7
5SP4491-7
In Stock
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$537.33
Siemens
125
4
5SP9206-7KC47
5SP9206-7KC47
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Siemens
6
2
5SP9332-7KC47
5SP9332-7KC47
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Siemens
32
3
5SP9363-7KC47
5SP9363-7KC47
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Siemens
63
3
5SP94067KC47
5SP94067KC47
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Siemens
40
4
5SQ11-220-L20
5SQ11-220-L20
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Siemens
20
1
5SQ2-370-0KA02
5SQ2-370-0KA02
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Siemens
2
1
5SQ21-220-G63
5SQ21-220-G63
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Siemens
63
1
5SQ2160-0KA06
5SQ2160-0KA06
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Siemens
6
1
5SQ2160-0KA20
5SQ2160-0KA20
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Siemens
20
1
5SQ2160-0KA25
5SQ2160-0KA25
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Siemens
25
1
5SQ2170-0KA02
5SQ2170-0KA02
In Stock
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$8.75
Siemens
2
1
5SQ2170-0KA16
5SQ2170-0KA16
In Stock
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$12.22
Siemens
16
1
5SQ2170-0KA40
5SQ2170-0KA40
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Siemens
40
1
5SQ2170-0KA63
5SQ2170-0KA63
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Siemens
63
1
5SQ2270-0KA40
5SQ2270-0KA40
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Siemens
40
2
5SQ2270-0KA63
5SQ2270-0KA63
Limited Stock
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Siemens
63
2
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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