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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
458D510G12
458D510G12
In Stock
From
$785.35
Eaton
25
500
458D510G15
458D510G15
In Stock
From
$1,588.17
Eaton
100
500
60103
60103
In Stock
From
$34.53
Schneider Electric
-
-
60104
60104
In Stock
From
$28.37
Schneider Electric
3
240
60107
60107
In Stock
From
$75.11
Schneider Electric
6
240
60109
60109
In Stock
From
$107.39
Square D
8
240
60110
60110
In Stock
From
$69.95
Square D
10
240
60111
60111
In Stock
From
$23.10
Square D
13
240
60112
60112
In Stock
From
$14.04
Square D
15
240
60113
60113
In Stock
From
$33.76
Schneider Electric
20
240
60123
60123
In Stock
From
$178.62
Square D
5
240
60124
60124
In Stock
From
$52.00
Square D
6
240
60127
60127
In Stock
From
$23.57
Square D
10
240
60128
60128
In Stock
From
$94.54
Square D
13
240
60132
60132
In Stock
From
$11.05
Square D
30
240
60139
60139
In Stock
From
$71.87
Schneider Electric
4
240
60140
60140
In Stock
From
$300.72
Square D
5
240
60141
60141
In Stock
From
$89.74
Square D
6
240
60142
60142
In Stock
From
$45.97
Square D
7
240
60144
60144
In Stock
From
$78.05
Square D
10
240
60149
60149
In Stock
From
$32.39
Schneider Electric
30
240
60150
60150
In Stock
From
$37.26
Square D
35
240
60154
60154
In Stock
From
$53.91
Merlin Gerin
2
240
60155
60155
In Stock
From
$76.95
Square D
3
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.