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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
LD63B250
LD63B250
In Stock
From
$2,439.64
Siemens
250
3
LD63B500
LD63B500
In Stock
From
$1,355.32
Siemens
500
3
LGB2K020B
LGB2K020B
In Stock
From
$446.71
Siemens
20
2
LGB3K040B
LGB3K040B
In Stock
From
$889.45
Siemens
40
3
LGB3K045B
LGB3K045B
In Stock
From
$345.65
Siemens
45
3
LGB3K070B
LGB3K070B
In Stock
From
$958.26
Siemens
70
3
LGB3K100B
LGB3K100B
In Stock
From
$969.11
Siemens
100
3
LGB3K125B
LGB3K125B
In Stock
From
$1,607.64
Siemens
125
3
LMD63T800
LMD63T800
In Stock
From
$696.64
Siemens
-
3
LMXD63B700L
LMXD63B700L
In Stock
From
$2,289.85
Siemens
700
3
LNG3B120
LNG3B120
In Stock
From
$12,106.80
Siemens
1200
3
LXD63B250
LXD63B250
In Stock
From
$718.23
Siemens
250
3
LXD63B300
LXD63B300
In Stock
From
$1,877.50
Siemens
300
3
LXD63B450
LXD63B450
In Stock
From
$1,657.11
Siemens
450
3
LXD63B600H
LXD63B600H
In Stock
From
$920.29
Siemens
600
3
LXD63B600L
LXD63B600L
In Stock
From
$2,711.03
Siemens
600
3
LXD63M600
LXD63M600
In Stock
From
$835.43
Siemens
600
3
MD63T600
MD63T600
In Stock
From
$1,006.20
Siemens
-
3
MD63T700
MD63T700
In Stock
From
$1,051.48
Siemens
-
3
MP115
MP115
In Stock
From
$6.17
Murray
15
1
MP140
MP140
In Stock
From
$3.21
Murray
40
1
MP3030
MP3030
In Stock
From
$10.06
Murray
30
2
MP330
MP330
In Stock
From
$53.07
Siemens
30
3
MP370
MP370
In Stock
From
$87.52
Siemens
70
3
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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