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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
NV50-SVFU2P30A30
NV50-SVFU2P30A30
In Stock
From
$265.47
Mitsubishi
-
-
NV50-SVFU2P5A30
NV50-SVFU2P5A30
In Stock
From
$236.74
Mitsubishi
-
-
NV50-SVFU3P40A30
NV50-SVFU3P40A30
In Stock
From
$295.60
Mitsubishi
-
-
NV50-SWU 203 20A
NV50-SWU 203 20A
In Stock
From
$171.37
Mitsubishi
-
-
NV50-SWU-3P-40A-AC100-200V-30MA
NV50-SWU-3P-40A-AC100-200V-30MA
In Stock
From
$203.90
Mitsubishi
-
-
NV50-SWU3-153
NV50-SWU3-153
In Stock
From
$179.67
Mitsubishi
-
-
NV50-SWU3-503
NV50-SWU3-503
In Stock
From
$55.24
Mitsubishi
-
-
NV63-CV2P5A30
NV63-CV2P5A30
Limited Stock
From
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Mitsubishi
-
-
NV63-CV3P40A100
NV63-CV3P40A100
In Stock
From
$274.39
Mitsubishi
-
-
NV63-CVF-3P-50A
NV63-CVF-3P-50A
Limited Stock
From
Get Price
Mitsubishi
-
-
NV63-SV2P10A30AY
NV63-SV2P10A30AY
In Stock
From
$366.39
Mitsubishi
-
-
UT-RT10
UT-RT10
Limited Stock
From
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Mitsubishi
-
-
NF-SF-3125
NF-SF-3125
In Stock
From
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Mitsubishi
125
600
NF225-S
NF225-S
In Stock
From
$257.85
Mitsubishi
-
-
CP30-BA-2P-5A
CP30-BA-2P-5A
In Stock
From
$22.17
Mitsubishi
-
-
CP30-BA-3P-10A
CP30-BA-3P-10A
In Stock
From
$58.55
Mitsubishi
-
-
CP30-BA-3P-15A
CP30-BA-3P-15A
In Stock
From
$28.10
Mitsubishi
-
-
CP30-BA-3P-20A
CP30-BA-3P-20A
In Stock
From
$38.09
Mitsubishi
-
-
CP30BA1P1M2A
CP30BA1P1M2A
In Stock
From
$34.54
Mitsubishi
-
-
NF30-KC3P10A
NF30-KC3P10A
In Stock
From
$107.32
Mitsubishi
-
-
NF63-CV3P50A
NF63-CV3P50A
Limited Stock
From
Get Price
Mitsubishi
-
-
TCS-05SV3
TCS-05SV3
Limited Stock
From
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Mitsubishi
-
-
CP30-BA-1P-7A
CP30-BA-1P-7A
In Stock
From
$31.64
Mitsubishi
-
-
CP30-BA-3P-30A
CP30-BA-3P-30A
In Stock
From
$13.84
Mitsubishi
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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.