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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
CK3150
CK3150
In Stock
From
$266.91
Challenger
150
600
CK3175
CK3175
In Stock
From
$20.04
Challenger
175
600
CK3200
CK3200
In Stock
From
$457.91
Challenger
200
600
CK3250
CK3250
In Stock
From
$74.69
Challenger
250
600
CK3300
CK3300
In Stock
From
$132.82
Challenger
300
600
CKH3250
CKH3250
In Stock
From
$954.00
Challenger
250
600
CKH3400
CKH3400
In Stock
From
$167.64
Challenger
400
600
CL3400
CL3400
In Stock
From
$162.70
Challenger
400
600
CL3600F
CL3600F
In Stock
From
$385.00
Challenger
600
600
A3040CT
A3040CT
In Stock
From
Get Price
Challenger
40
240
BQ1C040
BQ1C040
In Stock
From
$2.09
Challenger
40
120
BQ1C050
BQ1C050
In Stock
From
$3.59
Challenger
50
120
BQ1C060
BQ1C060
In Stock
From
$2.21
Challenger
60
120
CBB1030
CBB1030
In Stock
From
$17.14
Challenger
30
240
CBB2015
CBB2015
In Stock
From
$18.01
Cutler Hammer
15
240
CBB2070
CBB2070
In Stock
From
$73.14
Cutler Hammer
70
240
CBBGF1020
CBBGF1020
In Stock
From
$26.96
Cutler Hammer
20
120
CBBGF1030
CBBGF1030
In Stock
From
$4.66
Challenger
30
120
CED3150
CED3150
In Stock
From
$121.04
Challenger
150
240
QFB200-2
QFB200-2
In Stock
From
$347.37
Challenger
200
240
QFP125-2P
QFP125-2P
In Stock
From
$60.35
Challenger
125
240
QFP175-3
QFP175-3
In Stock
From
$712.44
Zinsco
175
240
QFP200-2P
QFP200-2P
In Stock
From
$211.47
Sylvania
200
240
QFP2125K
QFP2125K
In Stock
From
$174.77
Zinsco
125
240
Popular Molded Case Circuit Breaker Manufacturers

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.