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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
315C046G14
315C046G14
In Stock
From
$1,772.62
Westinghouse
700
600
315C046G15
315C046G15
In Stock
From
$1,557.98
Westinghouse
800
600
315C046G16
315C046G16
In Stock
From
$576.26
Westinghouse
125
600
315C046G17
315C046G17
In Stock
From
$725.90
Westinghouse
150
600
315C046G18
315C046G18
In Stock
From
$548.32
Westinghouse
175
600
315C046G19
315C046G19
In Stock
From
$403.58
Westinghouse
200
600
315C046G20
315C046G20
In Stock
From
$543.86
Westinghouse
225
600
315C046G21
315C046G21
In Stock
From
$484.58
Westinghouse
250
600
315C046G22
315C046G22
In Stock
From
$2,487.54
Westinghouse
300
600
315C046G23
315C046G23
In Stock
From
$477.84
Westinghouse
350
600
315C046G24
315C046G24
In Stock
From
$1,457.76
Westinghouse
400
600
315C046G25
315C046G25
In Stock
From
$1,201.93
Westinghouse
500
600
315C046G26
315C046G26
In Stock
From
Get Price
Westinghouse
600
600
315C046G27
315C046G27
In Stock
From
$835.38
Westinghouse
700
600
315C046G28
315C046G28
In Stock
From
Get Price
Westinghouse
800
600
31671
31671
In Stock
From
$1,955.32
Merlin Gerin
200
690
31715
31715
In Stock
From
$1,078.44
Schneider Electric
80
690
31734
31734
In Stock
From
$40.40
Merlin Gerin
100
690
31736
31736
In Stock
From
$5.04
Schneider Electric
63
690
32403
32403
Limited Stock
From
Get Price
Merlin Gerin
400
600
32404
32404
In Stock
From
$1.41
Merlin Gerin
400
600
32405
32405
Limited Stock
From
Get Price
Schneider Electric
400
690
32678
32678
In Stock
From
$128.40
Merlin Gerin
300
690
32679
32679
In Stock
From
$341.40
Schneider Electric
250
690
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.