1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
188-A1C040
188-A1C040
In Stock
From
$14.44
Allen-Bradley
188-A1C100
188-A1C100
In Stock
From
$9.19
Allen-Bradley
188-A1C200
188-A1C200
In Stock
From
$10.37
Allen-Bradley
140G-H-FCS03
140G-H-FCS03
Limited Stock
From
Get Price
Allen-Bradley
140G-H6C3-C50-FB
140G-H6C3-C50-FB
In Stock
From
$801.14
Allen-Bradley
140G-HC6C3-C50
140G-HC6C3-C50
In Stock
From
$992.91
Allen-Bradley
140G-HC6X3
140G-HC6X3
In Stock
From
$1,002.15
Allen-Bradley
140G-J-EP2504
140G-J-EP2504
In Stock
From
$3,299.40
Allen-Bradley
140G-M-FMX06
140G-M-FMX06
In Stock
From
$796.89
Allen-Bradley
140G-M-TC3L
140G-M-TC3L
In Stock
From
$147.18
Allen-Bradley
140M-K5F-D16
140M-K5F-D16
Limited Stock
From
Get Price
Allen-Bradley
140M-K5F4-C63
140M-K5F4-C63
In Stock
From
$411.72
Allen-Bradley
140M-RC2E-B10
140M-RC2E-B10
Limited Stock
From
Get Price
Allen-Bradley
140MT-C3E-A63
140MT-C3E-A63
In Stock
From
$312.96
Allen-Bradley
140MT-C3E-B63
140MT-C3E-B63
In Stock
From
$254.47
Allen-Bradley
140MT-C3E-C29
140MT-C3E-C29
In Stock
From
$432.94
Allen-Bradley
140MT-D9E-C10
140MT-D9E-C10
In Stock
From
$293.97
Allen-Bradley
140MT-D9E-C16
140MT-D9E-C16
In Stock
From
$372.27
Allen-Bradley
140MT-D9N-B40
140MT-D9N-B40
In Stock
From
$283.14
Allen-Bradley
140MT-D9N-C16
140MT-D9N-C16
In Stock
From
$299.40
Allen-Bradley
140U-D6D2-B80
140U-D6D2-B80
In Stock
From
$212.24
Allen-Bradley
140U-D6D3-B10
140U-D6D3-B10
In Stock
From
$657.34
Allen-Bradley
140U-D6D3-C12
140U-D6D3-C12
In Stock
From
$204.90
Allen-Bradley
140U-D6D3-C30
140U-D6D3-C30
In Stock
From
$551.20
Allen-Bradley
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.