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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
NZMN2-AF30-BT-NA
NZMN2-AF30-BT-NA
Limited Stock
From
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Klockner Moeller
30
600
NZMN2-AF35-BT-NA
NZMN2-AF35-BT-NA
Limited Stock
From
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Klockner Moeller
35
600
NZMN2-AF40-BT-NA
NZMN2-AF40-BT-NA
Limited Stock
From
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Klockner Moeller
40
600
NZMN2-AF45-BT-NA
NZMN2-AF45-BT-NA
Limited Stock
From
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Klockner Moeller
45
600
NZMN2-VE160-BT-NA
NZMN2-VE160-BT-NA
Limited Stock
From
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Klockner Moeller
160
600
NZMN2-VE250-BT-NA
NZMN2-VE250-BT-NA
Limited Stock
From
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Eaton
250
600
NZMN2-VEF150-BT-NA
NZMN2-VEF150-BT-NA
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From
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Klockner Moeller
150
600
NZMN3-AE400-NA
NZMN3-AE400-NA
Limited Stock
From
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Eaton
400
600
NZMN3-AE400-T
NZMN3-AE400-T
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From
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Klockner Moeller
400
690
PDG13C0070TFFJ
PDG13C0070TFFJ
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From
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Eaton
70
600
PDG13C0100TFFJ
PDG13C0100TFFJ
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From
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Eaton
100
600
PDG23F0200TFFL
PDG23F0200TFFL
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From
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Eaton
200
600
QC1050LD6T
QC1050LD6T
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From
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Eaton
50
240
QCF2020HT
QCF2020HT
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From
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Eaton
20
240
RGH325038E
RGH325038E
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From
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Eaton
2500
600
WMS1D40
WMS1D40
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From
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Eaton
40
277
WMS3C00
WMS3C00
Limited Stock
From
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Eaton
0.5
480
WMS3C02
WMS3C02
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From
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Eaton
2
480
WMS3D40
WMS3D40
Limited Stock
From
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Eaton
40
480
1230C83G01
1230C83G01
Limited Stock
From
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Eaton
400
500
1230C83G02
1230C83G02
Limited Stock
From
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Eaton
400
500
1230C83G03
1230C83G03
Limited Stock
From
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Eaton
400
500
1230C83G04
1230C83G04
Limited Stock
From
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Eaton
400
500
1230C83G05
1230C83G05
Limited Stock
From
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Eaton
400
500
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.