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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
PL702U-K70R
PL702U-K70R
Limited Stock
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ABB
70
240
PL702U-K80R
PL702U-K80R
Limited Stock
From
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ABB
80
240
PL702U-K90R
PL702U-K90R
Limited Stock
From
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ABB
90
240
PL703U-K70L
PL703U-K70L
Limited Stock
From
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ABB
70
240
Q120HH00S07
Q120HH00S07
Limited Stock
From
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Siemens
20
120
Q120HH01
Q120HH01
Limited Stock
From
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Siemens
20
120
Q125HH00S07
Q125HH00S07
Limited Stock
From
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Siemens
25
120
Q125HH01
Q125HH01
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Siemens
25
120
Q135HH01
Q135HH01
Limited Stock
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Siemens
35
120
Q140HH00S07
Q140HH00S07
Limited Stock
From
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Siemens
40
120
Q140HH01
Q140HH01
Limited Stock
From
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Siemens
40
120
Q145HH00S07
Q145HH00S07
Limited Stock
From
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Siemens
45
120
Q145HH01
Q145HH01
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Siemens
45
120
Q150HH01
Q150HH01
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Siemens
50
120
Q170HH00S07
Q170HH00S07
Limited Stock
From
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Siemens
70
120
Q170HH01
Q170HH01
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From
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Siemens
70
120
Q211000S07
Q211000S07
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From
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Siemens
110
240
QBAF2015
QBAF2015
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Cutler Hammer
15
240
QBAG1015
QBAG1015
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Cutler Hammer
15
240
QBAG1020
QBAG1020
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Cutler Hammer
20
240
QBAG2015
QBAG2015
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Cutler Hammer
15
240
QBAG2020
QBAG2020
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Cutler Hammer
20
240
QBGF2025W1
QBGF2025W1
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From
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Cutler Hammer
25
240
QBGF2030W1
QBGF2030W1
Limited Stock
From
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Cutler Hammer
30
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.