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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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
MAL3660040M
MAL3660040M
In Stock
From
$2,268.00
Square D
600
600
MAL3660044M
MAL3660044M
In Stock
From
$1,018.87
Square D
600
600
MAL36700
MAL36700
In Stock
From
$1,674.82
Square D
700
600
MAL367001021
MAL367001021
In Stock
From
$2,520.00
Square D
700
600
MAL36800-BLACK
MAL36800-BLACK
In Stock
From
$2,031.23
Square D
800
600
MAL36900
MAL36900
In Stock
From
$3,215.91
Square D
900
600
MAP26400
MAP26400
In Stock
From
$1,452.03
Square D
400
600
MAP26800
MAP26800
In Stock
From
$1,194.04
Square D
800
600
MAP361000
MAP361000
In Stock
From
$4,618.01
Square D
1000
600
MAP36400
MAP36400
In Stock
From
$2,051.99
Square D
400
600
MAP36600
MAP36600
In Stock
From
$1,823.97
Square D
600
600
ME36250LS
ME36250LS
In Stock
From
$3,946.51
Square D
250
600
ME36400LIG
ME36400LIG
In Stock
From
$2,966.91
Square D
400
600
ME36400LS
ME36400LS
In Stock
From
$1,425.26
Square D
400
600
ME36600LI
ME36600LI
In Stock
From
$7,027.58
Square D
600
600
ME36600LS
ME36600LS
In Stock
From
$4,003.17
Square D
600
600
ME36600LSG
ME36600LSG
In Stock
From
$11,080.71
Square D
600
600
ME36800LI
ME36800LI
In Stock
From
$2,915.79
Square D
800
600
ME36800LIG
ME36800LIG
In Stock
From
$3,252.21
Square D
800
600
ME36800LS
ME36800LS
In Stock
From
$3,383.07
Schneider Electric
800
600
ME36800LSG
ME36800LSG
In Stock
From
$3,903.71
Square D
800
600
ME836LSG
ME836LSG
Limited Stock
From
Get Price
Square D
800
600
MEL36600LSG
MEL36600LSG
In Stock
From
$9,229.37
Square D
600
600
MEL36800LI
MEL36800LI
In Stock
From
$6,210.96
Square D
800
600
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.