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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
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Manufacturer
Amperage
Voltage
LPH3U120
LPH3U120
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Siemens
1200
600
LPH3U160
LPH3U160
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Siemens
1600
600
LPH3X120
LPH3X120
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Siemens
1200
600
LPH3X160
LPH3X160
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Siemens
1600
600
LPX3C140
LPX3C140
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Siemens
1400
600
LPX3C160
LPX3C160
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Siemens
1600
600
LPX3P120
LPX3P120
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Siemens
1200
600
LPX3P160
LPX3P160
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Siemens
1600
600
LPY3C120
LPY3C120
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Siemens
120
600
LPY3C140
LPY3C140
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Siemens
140
600
LPY3C160
LPY3C160
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Siemens
160
600
LPY3D120
LPY3D120
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Siemens
1200
600
LPY3D160
LPY3D160
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Siemens
1600
600
LPY3E120
LPY3E120
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Siemens
1200
600
LPY3E160
LPY3E160
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Siemens
1600
600
LPY3N120
LPY3N120
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Siemens
1200
600
LPY3N160
LPY3N160
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Siemens
1600
600
LPY3P120
LPY3P120
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Siemens
1200
600
LPY3P160
LPY3P160
Limited Stock
From
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Siemens
1600
600
LPY3U120
LPY3U120
Limited Stock
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Siemens
1200
600
LPY3U160
LPY3U160
Limited Stock
From
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Siemens
1600
600
LPY3X120
LPY3X120
Limited Stock
From
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Siemens
1200
600
LPY3X160
LPY3X160
Limited Stock
From
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Siemens
1600
600
MXD63F800
MXD63F800
Limited Stock
From
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Siemens
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.