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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
QFP2150K
QFP2150K
In Stock
From
$334.27
Sylvania
150
240
QFP2225K
QFP2225K
In Stock
From
$296.56
Zinsco
225
240
QFP225-3
QFP225-3
In Stock
From
$603.15
Sylvania
225
240
CB2100
CB2100
In Stock
From
$10.74
Challenger
100
240
CB3100
CB3100
In Stock
From
$80.78
Challenger
100
240
CB3125
CB3125
In Stock
From
$14.27
Challenger
125
240
CB3150
CB3150
In Stock
From
$0.02
Challenger
150
240
CB3225
CB3225
In Stock
From
$97.20
Challenger
225
240
CD3200W
CD3200W
In Stock
From
$839.21
Challenger
200
240
CF2020
CF2020
In Stock
From
$47.86
Challenger
20
600
CF2050
CF2050
In Stock
From
$20.84
Challenger
50
600
CFH1020
CFH1020
In Stock
From
$6.98
Challenger
20
277
CH3080ST
CH3080ST
In Stock
From
$510.83
Challenger
80
480
CHMP030H1C
CHMP030H1C
In Stock
From
$11.33
Cutler Hammer
30
600
CK3090
CK3090
In Stock
From
$22.49
Challenger
90
600
CMH2175
CMH2175
In Stock
From
$116.10
Challenger
175
240
HC2125
HC2125
In Stock
From
$0.02
Challenger
125
240
QFB24150
QFB24150
In Stock
From
$240.21
Challenger
150
240
QFL2225
QFL2225
In Stock
From
$223.80
Challenger
225
240
QFL23200
QFL23200
In Stock
From
$728.70
Challenger
200
240
SE3C015
SE3C015
In Stock
From
$250.99
Challenger
15
240
SE3C030
SE3C030
In Stock
From
$95.67
Sylvania
30
240
SE3C040
SE3C040
In Stock
From
$253.59
Challenger
40
240
SEH1C050
SEH1C050
In Stock
From
$69.35
Challenger
50
277
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.