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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
PNLE46125U74RE1
PNLE46125U74RE1
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Schneider Electric
1250
690
PNLE46160U73RE1
PNLE46160U73RE1
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From
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Schneider Electric
1600
690
PNLE46160U74RE1
PNLE46160U74RE1
Limited Stock
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Schneider Electric
1600
690
Q11000S01
Q11000S01
Limited Stock
From
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Siemens
10
120
Q11000S07
Q11000S07
Limited Stock
From
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Siemens
10
120
Q11001
Q11001
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Siemens
10
120
Q11500S07
Q11500S07
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From
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Siemens
15
120
Q120H00S07
Q120H00S07
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Siemens
20
120
Q120H01
Q120H01
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Siemens
20
120
Q12500S07
Q12500S07
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Siemens
25
120
Q125H00S01
Q125H00S01
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Siemens
25
120
Q125H00S07
Q125H00S07
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Siemens
25
120
Q125H01
Q125H01
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Siemens
25
120
Q13000S07
Q13000S07
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Siemens
30
120
Q130H01
Q130H01
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Siemens
30
120
Q13500S01
Q13500S01
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Siemens
35
120
Q13500S07
Q13500S07
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Siemens
35
120
Q14000S07
Q14000S07
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Siemens
40
120
Q140H00S01
Q140H00S01
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Siemens
40
120
Q140H00S07
Q140H00S07
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From
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Siemens
40
120
Q140H01
Q140H01
Limited Stock
From
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Siemens
40
120
Q14500S01
Q14500S01
Limited Stock
From
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Siemens
45
120
Q14500S07
Q14500S07
Limited Stock
From
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Siemens
45
120
Q145H00S01
Q145H00S01
Limited Stock
From
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Siemens
45
120
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.