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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
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Part Number
PRICE
Manufacturer
Amperage
Poles
L3B125
L3B125
In Stock
From
$138.95
ITE
125
3
L3B225
L3B225
In Stock
From
$15.99
Siemens
225
3
L3B350
L3B350
In Stock
From
$69.80
ITE
350
3
L3B400
L3B400
In Stock
From
$1,782.66
Siemens
400
3
L3B450
L3B450
In Stock
From
$138.96
ITE
450
3
L3B500
L3B500
In Stock
From
$448.44
ITE
500
3
L3B600
L3B600
In Stock
From
$893.65
Siemens
600
3
MC0816B1200EFN
MC0816B1200EFN
In Stock
From
$800.00
Siemens
-
-
NFK3B150L
NFK3B150L
In Stock
From
$4,616.50
Siemens
-
-
NJJ3B400
NJJ3B400
In Stock
From
Get Price
Siemens
400
3
P1X42MC400CT
P1X42MC400CT
In Stock
From
Get Price
Siemens
400
-
RHOCQVD
RHOCQVD
In Stock
From
$416.72
Siemens
-
-
RS5783
RS5783
In Stock
From
$479.75
Siemens
-
-
RS5785
RS5785
In Stock
From
$766.59
Siemens
-
-
RS5786
RS5786
In Stock
From
$608.02
Siemens
-
-
RST4040L1125
RST4040L1125
In Stock
From
$126.80
Siemens
-
-
S01MN6L72
S01MN6L72
In Stock
From
$1,755.38
Siemens
-
-
SCJD6B300LSIG
SCJD6B300LSIG
In Stock
From
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Siemens
300
3
SMFFL1
SMFFL1
In Stock
From
$35.88
Siemens
-
-
SXSK
SXSK
In Stock
From
$114.00
Siemens
-
-
TPS3E12300X02
TPS3E12300X02
In Stock
From
$4,616.61
Siemens
-
-
WLG3SHUT3L
WLG3SHUT3L
In Stock
From
$1,295.64
Siemens
-
-
3RV2902-1AP0
3RV2902-1AP0
In Stock
From
$87.87
Siemens
-
-
3RV2917-5FA00
3RV2917-5FA00
Limited Stock
From
Get Price
Siemens
-
-
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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