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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
Q25000S01
Q25000S01
In Stock
From
$103.10
Siemens
50
240
Q27000S01
Q27000S01
In Stock
From
$137.18
Siemens
70
240
Q270HH
Q270HH
In Stock
From
$108.53
Siemens
70
240
Q28000S01
Q28000S01
In Stock
From
$198.20
Siemens
80
240
Q290H
Q290H
In Stock
From
$87.92
Siemens
90
240
Q2L2100
Q2L2100
In Stock
From
$260.24
Square D
100
240
Q2L2125
Q2L2125
In Stock
From
$92.16
Square D
125
240
Q2L2150
Q2L2150
In Stock
From
$355.02
Square D
150
240
Q2L2200
Q2L2200
In Stock
From
$453.29
Square D
200
240
Q2L2200H
Q2L2200H
In Stock
From
$186.99
Square D
200
240
Q2L3100
Q2L3100
In Stock
From
$283.19
Square D
100
240
Q2L3125
Q2L3125
In Stock
From
$311.50
Square D
125
240
Q2L3150
Q2L3150
In Stock
From
$206.21
Square D
150
240
Q2L3175
Q2L3175
In Stock
From
$379.41
Square D
175
240
Q2L3200
Q2L3200
In Stock
From
$390.80
Square D
200
240
Q2L3225
Q2L3225
In Stock
From
$188.76
Square D
225
240
Q2M2100
Q2M2100
In Stock
From
$411.72
Square D
100
240
Q2M2100MT
Q2M2100MT
In Stock
From
$505.62
Square D
100
240
Q2M2125
Q2M2125
In Stock
From
$323.92
Square D
125
240
Q2M2125MT
Q2M2125MT
Limited Stock
From
Get Price
Square D
125
240
Q2M2150MB
Q2M2150MB
Limited Stock
From
Get Price
Square D
150
240
Q2M2150VH
Q2M2150VH
In Stock
From
$90.02
Square D
150
240
Q2M2200
Q2M2200
In Stock
From
$544.70
Square D
200
240
Q2M2200MB
Q2M2200MB
In Stock
From
$413.85
Square D
200
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.