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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
B220
B220
In Stock
From
$14.62
Siemens
20
240
BQ1B020
BQ1B020
In Stock
From
$85.60
Siemens
20
120
BQD260
BQD260
In Stock
From
$77.27
Siemens
60
480
BQD270
BQD270
In Stock
From
$94.96
Siemens
70
480
B225
B225
In Stock
From
$34.79
Siemens
25
240
BQD2100
BQD2100
In Stock
From
$88.56
ITE
100
480
B120AFCH
B120AFCH
In Stock
From
$179.06
ITE
15
120
P115
P115
In Stock
From
$9.99
ITE
15
120
P1515
P1515
In Stock
From
$97.87
ITE
15
120
P2100
P2100
In Stock
From
$144.67
ITE
100
240
P220
P220
In Stock
From
$60.11
ITE
20
240
P230
P230
In Stock
From
$60.70
ITE
30
240
P260
P260
In Stock
From
$49.76
ITE
60
240
P270
P270
In Stock
From
$204.67
Siemens
70
240
B115AFCH
B115AFCH
In Stock
From
$161.15
ITE
15
120
HJ3B200
HJ3B200
In Stock
From
$858.53
Siemens
200
600
HJ3B225
HJ3B225
In Stock
From
$1,184.40
Siemens
225
600
HJ3B250
HJ3B250
In Stock
From
$1,184.23
Siemens
250
600
HJ3B300
HJ3B300
In Stock
From
$665.00
Siemens
300
600
HJ3B350
HJ3B350
In Stock
From
$834.34
Siemens
350
600
HJ3B400
HJ3B400
In Stock
From
$992.99
Siemens
400
600
BL330
BL330
In Stock
From
$137.94
ITE
30
240
BL340
BL340
In Stock
From
$64.27
ITE
40
240
BL360
BL360
In Stock
From
$122.97
ITE
60
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.