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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
1313533
1313533
In Stock
From
$2,315.48
Westinghouse
350
600
1313534
1313534
In Stock
From
$2,221.12
Westinghouse
400
600
1313536
1313536
In Stock
From
$2,943.38
Westinghouse
500
600
1313539
1313539
In Stock
From
$3,244.32
Westinghouse
600
600
1313564
1313564
In Stock
From
Get Price
Westinghouse
125
600
1313565
1313565
In Stock
From
$520.51
Westinghouse
150
600
1313566
1313566
In Stock
From
$696.88
Westinghouse
175
600
1313567
1313567
In Stock
From
$2,327.62
Cutler Hammer
200
600
1313568
1313568
In Stock
From
$2,328.08
Cutler Hammer
225
600
1313569
1313569
In Stock
From
$2,321.14
Westinghouse
250
600
1313571
1313571
In Stock
From
$2,319.98
Cutler Hammer
300
600
1313574
1313574
In Stock
From
$2,448.13
Westinghouse
400
600
1313576
1313576
In Stock
From
$2,322.30
Cutler Hammer
500
600
1773493
1773493
In Stock
From
$624.10
Westinghouse
150
600
1773494
1773494
In Stock
From
$371.21
Westinghouse
175
600
1773495
1773495
In Stock
From
$597.08
Westinghouse
200
600
1773496
1773496
In Stock
From
$786.32
Westinghouse
225
600
1773497
1773497
In Stock
From
Get Price
Westinghouse
250
600
1773498
1773498
In Stock
From
$42.42
Westinghouse
300
600
1773499
1773499
In Stock
From
$975.74
Westinghouse
350
600
1773500
1773500
In Stock
From
$1,088.41
Westinghouse
400
600
1773510
1773510
In Stock
From
Get Price
Westinghouse
125
600
1773511
1773511
In Stock
From
$520.51
Westinghouse
150
600
1773512
1773512
In Stock
From
$696.88
Westinghouse
175
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.