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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
Q2175BHH
Q2175BHH
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Siemens
175
240
Q220AFH
Q220AFH
Limited Stock
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Siemens
20
240
Q2225BHH
Q2225BHH
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Siemens
225
240
Q225HH
Q225HH
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Siemens
25
240
Q23001
Q23001
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Siemens
30
240
Q23030NC
Q23030NC
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Siemens
30
240
Q230H00S01
Q230H00S01
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Siemens
30
240
Q230R
Q230R
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Siemens
30
240
Q23500S01
Q23500S01
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Siemens
35
240
Q24030NC
Q24030NC
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Siemens
40
240
Q240R
Q240R
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Siemens
40
240
Q25030CT2
Q25030CT2
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Siemens
50
240
Q250R
Q250R
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Siemens
50
240
Q26000S07
Q26000S07
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Siemens
60
240
Q260H00S01
Q260H00S01
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Siemens
60
240
Q3100H00S01
Q3100H00S01
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Siemens
100
240
Q315H00S01
Q315H00S01
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Siemens
15
240
Q32001
Q32001
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Siemens
20
240
Q33001
Q33001
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Siemens
30
240
Q340H00S01
Q340H00S01
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Siemens
40
240
Q350H00S01
Q350H00S01
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Siemens
50
240
Q350HH
Q350HH
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Siemens
50
240
Q36001
Q36001
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Siemens
60
240
Q360HH00S01
Q360HH00S01
Limited Stock
From
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Siemens
60
240
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.