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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
NM032600
NM032600
In Stock
From
$785.82
Federal Pacific
600
3
NM032700
NM032700
In Stock
From
$2,765.26
Federal Pacific
700
3
NM631500
NM631500
In Stock
From
$570.72
Federal Pacific
500
3
NM631800
NM631800
In Stock
From
$3,219.17
Federal Pacific
800
3
NM632300
NM632300
In Stock
From
$1,412.64
Federal Pacific
300
3
NM632600
NM632600
In Stock
From
$3,064.15
Federal Pacific
600
3
NM632800
NM632800
In Stock
From
$2,701.93
Federal Pacific
800
3
NM632800NA
NM632800NA
In Stock
From
$4,449.05
Federal Pacific
800
3
NMX3B600
NMX3B600
In Stock
From
$6,883.88
Siemens
600
3
NMY3B600
NMY3B600
In Stock
From
$17,553.42
Siemens
600
3
NMY3B600L
NMY3B600L
In Stock
From
$20,346.67
Siemens
600
3
NNX2B120
NNX2B120
In Stock
From
$7,089.28
Siemens
1200
2
NNX3B100
NNX3B100
In Stock
From
$4,964.53
Siemens
1000
3
NNX3B800
NNX3B800
In Stock
From
$7,397.98
Siemens
800
3
NNX3B900
NNX3B900
In Stock
From
$4,010.88
Siemens
900
3
NPG3B160
NPG3B160
In Stock
From
$9,364.90
Siemens
1600
3
NPY3B160
NPY3B160
In Stock
From
$22,845.67
Siemens
1600
3
NQ442L2
NQ442L2
In Stock
From
$463.90
Square D
225
-
NQ442L2C
NQ442L2C
In Stock
From
$354.64
Square D
225
-
NQ442L4
NQ442L4
In Stock
From
$1,405.72
Square D
400
-
NQ442L4C
NQ442L4C
Limited Stock
From
Get Price
Square D
400
-
NS100L
NS100L
In Stock
From
$973.07
Merlin Gerin
100
3
NS100N
NS100N
In Stock
From
$273.97
Schneider Electric
100
3
NS100N-4P
NS100N-4P
In Stock
From
$40.59
Schneider Electric
100
4
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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