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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
LJA36400U54XEHAC50YH2
LJA36400U54XEHAC50YH2
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From
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Square D
400
600
LLBAMT100
LLBAMT100
Limited Stock
From
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Tyco
-
-
LLR3P-16T2
LLR3P-16T2
Limited Stock
From
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Tyco
-
-
LLSAAT200
LLSAAT200
Limited Stock
From
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Tyco
-
-
LMLK1-1RLS4-29877-15-V
LMLK1-1RLS4-29877-15-V
Limited Stock
From
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Sensata Technologies
-
-
LMR320400
LMR320400
Limited Stock
From
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Lovato
-
-
LN-5915
LN-5915
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From
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Honeywell
-
-
LN-6440
LN-6440
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From
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Honeywell
-
-
LN5906
LN5906
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From
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Honeywell
-
-
LN5910
LN5910
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Honeywell
-
-
LN8650
LN8650
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Honeywell
-
-
LPC-63
LPC-63
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General Electric
-
-
LPC-63/3
LPC-63/3
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From
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General Electric
-
-
LS68-L6A
LS68-L6A
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From
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Gea Group
-
-
LSN-C10/3
LSN-C10/3
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From
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OEZ
-
-
LTA210JF
LTA210JF
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From
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Laurel Electronics
-
-
LV431910
LV431910
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Schneider Electric
-
-
LV433683
LV433683
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Schneider Electric
-
-
LV847130
LV847130
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Schneider Electric
-
-
LXC-40A
LXC-40A
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F&G
-
-
LXD68B500
LXD68B500
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From
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Siemens
-
-
LZMB2-A125-I
LZMB2-A125-I
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Eaton
-
-
LZMS2-A250
LZMS2-A250
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From
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Eaton
-
-
M9F11101
M9F11101
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Schneider Electric
-
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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.