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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
LPG4U120
LPG4U120
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Siemens
1200
600
LPG4U160
LPG4U160
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Siemens
1600
600
LPG4X120
LPG4X120
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Siemens
1200
600
LPG4X160
LPG4X160
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Siemens
1600
600
LPS3S160
LPS3S160
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Siemens
1600
600
LPX3B120
LPX3B120
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Siemens
1200
600
LPX3B140
LPX3B140
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Siemens
1400
600
LPX3B160
LPX3B160
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Siemens
1600
600
LPX3C120
LPX3C120
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Siemens
1200
600
LPY3A120
LPY3A120
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Siemens
1200
600
LPY3B120
LPY3B120
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Siemens
1200
600
LPY3B140
LPY3B140
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Siemens
140
600
LPY3B160
LPY3B160
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Siemens
160
600
LPY3G120
LPY3G120
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Siemens
1200
600
LPY3G160
LPY3G160
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Siemens
1600
600
LPY3K120
LPY3K120
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Siemens
1200
600
LPY3K160
LPY3K160
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Siemens
1600
600
LPY3R120
LPY3R120
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Siemens
1200
600
LPY3R160
LPY3R160
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Siemens
1600
600
LPY3T120
LPY3T120
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Siemens
1200
600
LPY3T160
LPY3T160
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Siemens
1600
600
LPY3V120
LPY3V120
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Siemens
1200
600
LPY3V160
LPY3V160
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From
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Siemens
1600
600
LPY3W120
LPY3W120
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From
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Siemens
1200
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.