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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
GJ1-B2-DU0225-01C
GJ1-B2-DU0225-01C
In Stock
From
$89.07
Eaton
GJ1-Z192-7W
GJ1-Z192-7W
In Stock
From
$90.20
Eaton
GJ1P-Z4-4
GJ1P-Z4-4
In Stock
From
$80.16
Eaton
GJ3-A2-DU-150
GJ3-A2-DU-150
In Stock
From
$157.45
Eaton
GJ3-A3-DU0150-02A
GJ3-A3-DU0150-02A
In Stock
From
$193.07
Eaton
GJ3-A3DU-W-200
GJ3-A3DU-W-200
In Stock
From
$166.85
Eaton
HBA2030
HBA2030
In Stock
From
$5.77
Eaton
HCMP007C0C
HCMP007C0C
In Stock
From
$300.75
Eaton
HFDDC3125LA0205S2205
HFDDC3125LA0205S2205
In Stock
From
Get Price
Eaton
HKD3400S10
HKD3400S10
In Stock
From
$9,992.65
Eaton
HKDDC330WA07S49
HKDDC330WA07S49
In Stock
From
$1,768.75
Eaton
HMCP003A0A11
HMCP003A0A11
In Stock
From
$1,402.42
Eaton
HMCP007C0A09
HMCP007C0A09
In Stock
From
$935.55
Eaton
HMCP007C0B02
HMCP007C0B02
In Stock
From
$1,189.78
Eaton
HMCP050G2A02
HMCP050G2A02
In Stock
From
$1,072.25
Eaton
HMCP400X5CH09
HMCP400X5CH09
In Stock
From
$2,372.07
Eaton
HMCPS003A0CA02
HMCPS003A0CA02
In Stock
From
$706.07
Eaton
HP40TFKIT
HP40TFKIT
In Stock
From
$504.09
Eaton
HQP2100R3
HQP2100R3
In Stock
From
$410.37
Eaton
IS-32/2
IS-32/2
Limited Stock
From
Get Price
Eaton
JA1S-D3-A-0005-02E
JA1S-D3-A-0005-02E
In Stock
From
$40.93
Eaton
JA1S-D3-AB-01-D-A-5-2
JA1S-D3-AB-01-D-A-5-2
In Stock
From
$51.04
Eaton
JA2S-D3-A-20-2
JA2S-D3-A-20-2
In Stock
From
$187.21
Eaton
JA3200-1A1B
JA3200-1A1B
In Stock
From
$477.12
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.