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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
MP1520N
MP1520N
In Stock
From
$21.44
Murray Corporation
20
240
MP2030N
MP2030N
In Stock
From
$19.44
Murray Corporation
30
240
MP215AF
MP215AF
In Stock
From
$96.75
Murray Corporation
15
240
MP215AFC
MP215AFC
In Stock
From
$68.59
Murray Corporation
15
240
MP230GF
MP230GF
In Stock
From
$103.71
Murray Corporation
30
240
MP235
MP235
In Stock
From
$29.62
Murray Corporation
35
240
MP240GF
MP240GF
In Stock
From
$97.45
Murray Corporation
40
240
MP260GF
MP260GF
In Stock
From
$106.32
Murray Corporation
60
240
EP3150
EP3150
In Stock
From
$322.83
Murray Corporation
150
240
EP3200
EP3200
In Stock
From
$1,203.24
Murray Corporation
200
240
MP21515
MP21515
In Stock
From
$50.59
Murray Corporation
15
240
MP23015
MP23015
In Stock
From
$33.88
Murray Corporation
30
240
MP3100KM
MP3100KM
In Stock
From
$166.07
Murray Corporation
100
240
MP350KH
MP350KH
In Stock
From
$226.85
Murray Corporation
50
240
MPD2150KH
MPD2150KH
In Stock
From
$180.91
Murray Corporation
150
240
MQJ280
MQJ280
In Stock
From
$41.43
Murray Corporation
80
240
MQJ3200
MQJ3200
In Stock
From
$491.39
Murray Corporation
200
240
MQJ3225
MQJ3225
In Stock
From
$211.24
Murray Corporation
225
240
MP115KH
MP115KH
In Stock
From
$22.96
Murray Corporation
15
120
MP130KH
MP130KH
In Stock
From
$22.06
Murray Corporation
30
120
MP215KH
MP215KH
In Stock
From
$33.03
Murray Corporation
15
240
MP290KH
MP290KH
In Stock
From
$197.04
Murray Corporation
90
240
MP3015N
MP3015N
In Stock
From
$12.40
Murray Corporation
30
240
MPD2150R
MPD2150R
In Stock
From
$108.14
Murray Corporation
150
240
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.