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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
WMZD2C15
WMZD2C15
Limited Stock
From
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Eaton
-
-
XTPB1P6BC1
XTPB1P6BC1
In Stock
From
$144.92
Eaton
-
-
XTPR032DC1NL
XTPR032DC1NL
Limited Stock
From
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Eaton
-
-
ZM9-250-CNA
ZM9-250-CNA
Limited Stock
From
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Eaton
-
-
1316.613
1316.613
Limited Stock
From
Get Price
Eaton
-
-
138874
138874
In Stock
From
$30.45
Eaton
-
-
376D200G01
376D200G01
In Stock
From
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Westinghouse
-
-
376D200G04
376D200G04
In Stock
From
$101.99
Westinghouse
-
-
AZ-2-C25
AZ-2-C25
Limited Stock
From
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Eaton
-
-
AZ-2-D80
AZ-2-D80
Limited Stock
From
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Eaton
-
-
BB-UL-25/1P-1.5M/37
BB-UL-25/1P-1.5M/37
In Stock
From
$125.26
Eaton
-
277
DA3400XZ
DA3400XZ
In Stock
From
$180.25
Westinghouse
400
240
EIPBK
EIPBK
In Stock
From
$50.50
Eaton
-
-
FD3020S12
FD3020S12
In Stock
From
$901.51
Eaton
-
600
FD3100SK
FD3100SK
In Stock
From
$640.29
Eaton
100
600
FD3200SL
FD3200SL
In Stock
From
$1,793.80
Eaton
-
600
FI-63/4/03
FI-63/4/03
Limited Stock
From
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Eaton
-
-
HFDDC3040
HFDDC3040
Limited Stock
From
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Eaton
40
600
HFDDC3060
HFDDC3060
Limited Stock
From
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Eaton
60
600
HMCP003A0B
HMCP003A0B
In Stock
From
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Eaton
3
-
HMCP100R3SU53
HMCP100R3SU53
In Stock
From
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Eaton
100
-
IS-100/2
IS-100/2
Limited Stock
From
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Eaton
-
-
P1-32/IVS
P1-32/IVS
Limited Stock
From
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Eaton
-
-
PKM0-0.63
PKM0-0.63
Limited Stock
From
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Eaton
-
-
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.