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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
ITEQ315
ITEQ315
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Siemens
15
240
ITEQ320
ITEQ320
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ITE
20
240
ITEQ330
ITEQ330
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Siemens
30
240
ITEQ340
ITEQ340
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Siemens
40
240
ITEQ350
ITEQ350
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ITE
50
240
ITEQ360
ITEQ360
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Siemens
60
240
ITEQ370
ITEQ370
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ITE
70
240
ITEQ380
ITEQ380
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Siemens
80
240
ITEQ390
ITEQ390
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ITE
90
240
KL3B150
KL3B150
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Siemens
150
600
KL3B200
KL3B200
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Siemens
200
600
P1540
P1540
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ITE
40
120
P20302
P20302
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ITE
30
240
P20402
P20402
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ITE
40
240
P30402
P30402
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ITE
40
240
P43100
P43100
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ITE
100
240
QP1-B025
QP1-B025
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ITE
25
240
QP140
QP140
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Siemens
40
240
QP2B150B
QP2B150B
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ITE
150
240
W275
W275
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Siemens
75
240
EQP120
EQP120
Limited Stock
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ITE
-
-
F62B070
F62B070
Limited Stock
From
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Siemens
70
600
F62B080
F62B080
Limited Stock
From
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ITE
80
600
F62B090
F62B090
Limited Stock
From
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ITE
90
600
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.