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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
HNB3B600
HNB3B600
Limited Stock
From
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ITE
600
600
HNB3B600PT
HNB3B600PT
Limited Stock
From
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ITE
600
600
HNB3B700PT
HNB3B700PT
Limited Stock
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ITE
700
600
HNB3B800PT
HNB3B800PT
Limited Stock
From
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ITE
800
600
HS3B25000L01
HS3B25000L01
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ITE
2500
600
HS3B2500S01
HS3B2500S01
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ITE
2500
600
HS3B300
HS3B300
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ITE
3000
600
HS3B30000L01
HS3B30000L01
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ITE
3000
600
HS3B3000S01
HS3B3000S01
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ITE
3000
600
HS3B400
HS3B400
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ITE
4000
600
HS3B40000L01
HS3B40000L01
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ITE
4000
600
ITEB115
ITEB115
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ITE
15
240
ITEB120
ITEB120
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Siemens
20
120
ITEB130
ITEB130
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ITE
30
120
ITEB140
ITEB140
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Siemens
40
240
ITEB150
ITEB150
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ITE
50
240
ITEB160
ITEB160
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ITE
60
240
ITEB2100
ITEB2100
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ITE
100
240
ITEB215
ITEB215
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Siemens
15
240
ITEB220
ITEB220
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Siemens
20
240
ITEB225
ITEB225
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Siemens
25
240
ITEB230
ITEB230
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Siemens
30
240
ITEB235
ITEB235
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Siemens
35
240
ITEB240
ITEB240
Limited Stock
From
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ITE
40
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.