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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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T7S 1600 PR231/P I IN=1600A 4P F F M
T7S 1600 PR231/P I IN=1600A 4P F F M
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ABB
UXAB 727131-R-709
UXAB 727131-R-709
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ABB
XT1HU3100AYD
XT1HU3100AYD
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01935
01935
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Legrand
032901
032901
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Siemens
06576
06576
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Legrand
07889
07889
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Legrand
08904054
08904054
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Kuoyuh
0912-25A-1P
0912-25A-1P
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Eaton
1100-CB3D2D30
1100-CB3D2D30
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C3 Controls
12205012660110001
12205012660110001
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Schneider Electric
140G-N-TLA33
140G-N-TLA33
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Allen-Bradley
140MP-A3E-A25
140MP-A3E-A25
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Allen-Bradley
140MT-D9E-B16
140MT-D9E-B16
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Allen-Bradley
140U-D6D2-B30
140U-D6D2-B30
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Allen-Bradley
140U-H6C3-D12-D
140U-H6C3-D12-D
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Allen-Bradley
1489-A
1489-A
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Allen-Bradley
1489-M
1489-M
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Allen-Bradley
1492-CB2H080
1492-CB2H080
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Allen-Bradley
1492-SPU1B200
1492-SPU1B200
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Allen-Bradley
1492-SPU1C080
1492-SPU1C080
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Allen-Bradley
19271
19271
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Schneider Electric
1SAM340000R1006
1SAM340000R1006
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ABB
1SDA038438R1
1SDA038438R1
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ABB
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.