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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
HN3B800PT
HN3B800PT
Limited Stock
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ITE
800
600
HP3S160
HP3S160
Limited Stock
From
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Siemens
1600
600
HPB3B140
HPB3B140
Limited Stock
From
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ITE
1400
600
HR3B1000
HR3B1000
Limited Stock
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ITE
1000
600
HR3B1200
HR3B1200
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ITE
1200
600
HR3B1400
HR3B1400
Limited Stock
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ITE
1400
600
HR3B1600
HR3B1600
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ITE
1600
600
HR3B1800
HR3B1800
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ITE
1800
600
HR3B2000
HR3B2000
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ITE
2000
600
JJ2B125
JJ2B125
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ITE
125
600
JJ2B150
JJ2B150
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Siemens
150
600
JJ2B175
JJ2B175
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Siemens
175
600
JJ2B200
JJ2B200
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ITE
200
600
JJ2B225
JJ2B225
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ITE
225
600
JJ2B350
JJ2B350
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Gould
350
600
JL62B200
JL62B200
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ITE
200
600
JL62B225
JL62B225
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ITE
225
600
JL62B250
JL62B250
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ITE
250
600
JL62B300
JL62B300
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From
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ITE
300
600
JL62B350
JL62B350
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ITE
350
600
KM2B300
KM2B300
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From
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ITE
300
600
KM2B700
KM2B700
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From
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ITE
700
600
KM2S800
KM2S800
Limited Stock
From
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ITE
800
600
KM3L800
KM3L800
Limited Stock
From
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ITE
800
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.