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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case 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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
G103B25
G103B25
In Stock
From
$37.20
General Electric
25
415
G61B06
G61B06
In Stock
From
$13.22
General Electric
6
415
G61C02
G61C02
In Stock
From
$26.84
General Electric
2
415
G61C20
G61C20
In Stock
From
$26.26
General Electric
20
415
MB512
MB512
In Stock
From
$491.39
General Electric
225
480
R115
R115
In Stock
From
$11.72
General Electric
15
120
R120
R120
In Stock
From
$9.37
General Electric
20
120
R150
R150
In Stock
From
$16.16
General Electric
50
120
TB43150AF14
TB43150AF14
In Stock
From
$1,226.21
General Electric
150
600
TB43200
TB43200
In Stock
From
$904.38
General Electric
200
600
TB43225AF14
TB43225AF14
In Stock
From
$1,371.05
General Electric
225
600
TB43250AF14
TB43250AF14
In Stock
From
$1,738.53
General Electric
250
600
TB43300
TB43300
In Stock
From
$1,489.85
General Electric
300
600
TB43400
TB43400
In Stock
From
$1,576.29
General Electric
400
600
TB43400AF14
TB43400AF14
In Stock
From
$1,422.96
General Electric
400
600
TB43F
TB43F
In Stock
From
$645.43
General Electric
400
600
TB63300BJ14
TB63300BJ14
In Stock
From
$5,091.61
General Electric
300
600
TB63400BJ14
TB63400BJ14
In Stock
From
$2,036.62
General Electric
400
600
TB63600BJ14
TB63600BJ14
In Stock
From
$1,742.15
General Electric
600
600
TBC43400F14G
TBC43400F14G
In Stock
From
$1,477.76
General Electric
400
600
TBC83800K22
TBC83800K22
In Stock
From
$973.71
General Electric
600
600
TE111015
TE111015
In Stock
From
$17.34
General Electric
15
240
TE111020
TE111020
In Stock
From
$28.30
General Electric
20
240
TE111030
TE111030
In Stock
From
$36.75
General Electric
30
240
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities 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 molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case 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.