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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
BQ3B080L
BQ3B080L
In Stock
From
$120.52
Siemens
80
240
BQ3B090H
BQ3B090H
In Stock
From
$150.88
Siemens
90
240
BQ3B090HL
BQ3B090HL
In Stock
From
$118.10
Siemens
90
240
BQ3B090L
BQ3B090L
In Stock
From
$219.47
Siemens
90
240
BQ3B10000S01
BQ3B10000S01
In Stock
From
$220.02
Siemens
100
240
BQ3B100HL
BQ3B100HL
In Stock
From
$126.17
Siemens
100
240
BQD6130
BQD6130
In Stock
From
$72.73
Siemens
30
347
BQD6240
BQD6240
In Stock
From
$165.50
Siemens
40
600
BQD6260
BQD6260
In Stock
From
$165.50
Siemens
60
600
BQD6370
BQD6370
In Stock
From
$510.32
Siemens
70
600
CED63B015L
CED63B015L
In Stock
From
$768.12
Siemens
15
600
CED63B020L
CED63B020L
In Stock
From
$779.81
Siemens
20
600
CED63B110
CED63B110
In Stock
From
$965.32
Siemens
110
600
CED63B110L
CED63B110L
In Stock
From
$965.32
Siemens
110
600
CJD63B200L
CJD63B200L
In Stock
From
$2,972.16
Siemens
200
600
CJD63B250L
CJD63B250L
In Stock
From
$3,781.67
Siemens
250
600
CJD63B300L
CJD63B300L
In Stock
From
$3,867.68
Siemens
300
600
CJD63B350L
CJD63B350L
In Stock
From
$3,399.89
Siemens
350
600
CJD63B400L
CJD63B400L
In Stock
From
$3,322.25
Siemens
400
600
CQD145
CQD145
In Stock
From
$43.18
Siemens
45
277
CQD150
CQD150
In Stock
From
$86.14
Siemens
50
277
D250
D250
In Stock
From
$25.53
Siemens
50
240
ED22B030L
ED22B030L
In Stock
From
$216.38
Siemens
30
240
ED22B050L
ED22B050L
In Stock
From
$173.32
Siemens
50
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.