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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
371D376G16
371D376G16
In Stock
From
$71.04
Westinghouse
376D200G20
376D200G20
In Stock
From
$2,395.65
Westinghouse
41-E-2664
41-E-2664
In Stock
From
$79.95
Westinghouse
450D079G15
450D079G15
In Stock
From
$294.30
Westinghouse
4979D06G14
4979D06G14
In Stock
From
$1,014.52
Westinghouse
4990D03G37
4990D03G37
In Stock
From
$19.22
Westinghouse
5686D42G08
5686D42G08
In Stock
From
$56.25
Westinghouse
656D221G02
656D221G02
In Stock
From
$68.19
Westinghouse
656D964G01
656D964G01
In Stock
From
$137.40
Westinghouse
ABDEION
ABDEION
In Stock
From
$185.02
Westinghouse
ED2070
ED2070
In Stock
From
$346.49
Westinghouse
EH3015B/LH
EH3015B/LH
In Stock
From
$37.92
Westinghouse
EHB FR 59-E-8871
EHB FR 59-E-8871
In Stock
From
$184.16
Westinghouse
EHB1020V
EHB1020V
In Stock
From
$31.29
Eaton
FB3020-S21
FB3020-S21
In Stock
From
$242.72
Westinghouse
FB3070-A05
FB3070-A05
In Stock
From
$381.49
Westinghouse
FB31502A2B
FB31502A2B
In Stock
From
$651.17
Westinghouse
HBA2030
HBA2030
In Stock
From
$5.77
Eaton
HKD3400S10
HKD3400S10
In Stock
From
$9,992.65
Eaton
HKDDC330WA07S49
HKDDC330WA07S49
In Stock
From
$1,768.75
Eaton
JA2125XZ
JA2125XZ
In Stock
From
$1,217.12
Westinghouse
KD3400KZ0E
KD3400KZ0E
In Stock
From
$1,111.72
Westinghouse
LA2175P
LA2175P
In Stock
From
$1,020.89
Westinghouse
LA3350-A01
LA3350-A01
In Stock
From
$576.74
Westinghouse
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.