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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
M9P22601
M9P22601
In Stock
From
$10.91
Square D
M9U21201
M9U21201
In Stock
From
$233.77
Schneider Electric
MA11125
MA11125
In Stock
From
$90.00
Square D
MAM02240AC
MAM02240AC
In Stock
From
$0.02
Square D
MAP36500-GRY
MAP36500-GRY
In Stock
From
$444.44
Square D
MAP36600-GRY
MAP36600-GRY
In Stock
From
$333.33
Square D
ME236LP
ME236LP
In Stock
From
$22.22
Square D
ME3800LS
ME3800LS
In Stock
From
$333.33
Square D
MHCA115
MHCA115
In Stock
From
$60.80
Square D
MHF361200G
MHF361200G
In Stock
From
$0.02
Square D
MHL3610008002
MHL3610008002
In Stock
From
$199.50
Square D
MHL361001386
MHL361001386
In Stock
From
$444.44
Square D
MHP36450
MHP36450
In Stock
From
$981.47
Square D
MT630110V
MT630110V
In Stock
From
Get Price
Schneider Electric
NA361200-GRY
NA361200-GRY
In Stock
From
$877.78
Square D
NAL3612001212
NAL3612001212
In Stock
From
$1,111.11
Square D
NFNL36100RD12
NFNL36100RD12
In Stock
From
$1,464.00
Schneider Electric
NHL360000M
NHL360000M
In Stock
From
$333.33
Square D
NSE100
NSE100
In Stock
From
$11.11
Schneider Electric
PAF361600DC-PF
PAF361600DC-PF
In Stock
From
$0.02
Square D
PAF361600DC1631
PAF361600DC1631
In Stock
From
$222.22
Square D
PAF362000DC1209
PAF362000DC1209
In Stock
From
$444.44
Square D
PAF362000DCA680
PAF362000DCA680
In Stock
From
$444.44
Square D
PAF36200DC
PAF36200DC
In Stock
From
$4,428.86
Square D
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

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.