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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
CED63B100L
CED63B100L
In Stock
From
$917.52
Siemens
100
600
CFD62B150
CFD62B150
In Stock
From
$817.04
Siemens
150
600
CFD63B125L
CFD63B125L
In Stock
From
$10,499.07
Siemens
125
600
CFD63B175L
CFD63B175L
In Stock
From
$3,338.81
Siemens
175
600
CFD63S250A
CFD63S250A
In Stock
From
$3,065.62
Siemens
250
600
CJ3B200
CJ3B200
In Stock
From
$787.66
Siemens
200
600
CJ3B225
CJ3B225
In Stock
From
$980.26
ITE
225
600
CJD63S400A
CJD63S400A
In Stock
From
$4,389.89
Siemens
400
600
CLD63B400
CLD63B400
In Stock
From
$2,203.70
Siemens
400
600
CLD63B450
CLD63B450
In Stock
From
$4,302.61
Siemens
450
600
CLD63B500
CLD63B500
In Stock
From
$3,526.88
Siemens
500
600
CLD63H600
CLD63H600
In Stock
From
$4,447.78
Siemens
600
600
CLJ63B300
CLJ63B300
In Stock
From
$57.20
Siemens
300
600
CM3B800
CM3B800
In Stock
From
$2,153.25
Siemens
800
600
CMD63B600H
CMD63B600H
In Stock
From
$8,823.60
Siemens
600
600
CND63B900
CND63B900
In Stock
From
$5,344.80
Siemens
900
600
CPD63B120
CPD63B120
In Stock
From
$6,961.19
Siemens
1200
600
CPD63B160
CPD63B160
In Stock
From
$4,377.93
Siemens
1600
600
D115
D115
In Stock
From
$19.52
Siemens
15
240
D120
D120
In Stock
From
$4.03
Siemens
20
240
D130
D130
In Stock
From
$4.03
Siemens
30
240
D140
D140
In Stock
From
$15.46
Siemens
40
240
D215
D215
In Stock
From
$69.77
Siemens
15
240
D220
D220
In Stock
From
$91.52
Siemens
-
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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.