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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
LD63W500
LD63W500
In Stock
From
$6,729.63
Siemens
LZS:PT17021
LZS:PT17021
Limited Stock
From
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Siemens
LZS:PT17040
LZS:PT17040
Limited Stock
From
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Siemens
LZS:PT78740
LZS:PT78740
In Stock
From
$14.84
Siemens
LZS:PTML0730
LZS:PTML0730
Limited Stock
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Siemens
LZS:RT17016
LZS:RT17016
Limited Stock
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Siemens
LZS:RT17040
LZS:RT17040
In Stock
From
$0.48
Siemens
LZS:RT3A4L24
LZS:RT3A4L24
In Stock
From
$34.59
Siemens
MBKJD1400A
MBKJD1400A
In Stock
From
$2,756.29
Siemens
MC1020B1100F
MC1020B1100F
In Stock
From
$427.04
Siemens
MC2442S1200FC
MC2442S1200FC
In Stock
From
$1,628.82
Siemens
MCS620R
MCS620R
In Stock
From
$2,014.95
Siemens
MFCM048
MFCM048
In Stock
From
$648.91
Siemens
MFKE3
MFKE3
In Stock
From
$942.24
Siemens
MFKE4X3
MFKE4X3
In Stock
From
$1,703.14
Siemens
MFMF
MFMF
In Stock
From
$474.70
Siemens
MFMM
MFMM
In Stock
From
$618.07
Siemens
MFSFA1
MFSFA1
Limited Stock
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Siemens
MP-115GFP
MP-115GFP
In Stock
From
$47.05
Siemens
MPD200KM
MPD200KM
In Stock
From
$95.86
Siemens
MSE-3L
MSE-3L
In Stock
From
$177.96
Siemens
MSKE1
MSKE1
In Stock
From
$5.77
Siemens
MSKE4
MSKE4
In Stock
From
$33.70
Siemens
MT-SUR-BOX
MT-SUR-BOX
In Stock
From
$103.84
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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