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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
LMXD62B600
LMXD62B600
In Stock
From
$2,917.36
Siemens
600
600
LMXD62B600L
LMXD62B600L
In Stock
From
$2,917.36
Siemens
600
600
LMXD62B700
LMXD62B700
In Stock
From
$1,875.55
Siemens
700
600
LMXD62B700L
LMXD62B700L
In Stock
From
$1,520.15
Siemens
700
600
LMXD62B800L
LMXD62B800L
In Stock
From
$6,612.84
Siemens
800
600
LMXD62L800
LMXD62L800
In Stock
From
$6,612.84
Siemens
800
600
LMXD62L800L
LMXD62L800L
In Stock
From
$6,612.84
Siemens
800
600
LMXD62M600
LMXD62M600
In Stock
From
$2,917.36
Siemens
600
600
LMXD62M700
LMXD62M700
In Stock
From
$1,875.55
Siemens
700
600
LMXD62M800
LMXD62M800
In Stock
From
$6,612.84
Siemens
800
600
LMXD63A800L
LMXD63A800L
In Stock
From
$2,229.98
Siemens
800
600
LMXD63B500L
LMXD63B500L
In Stock
From
$5,133.17
Siemens
500
600
LMXD63B600L
LMXD63B600L
In Stock
From
$1,870.90
Siemens
600
600
LMXD63B800L
LMXD63B800L
In Stock
From
$2,229.98
Siemens
800
600
LMXD63L800
LMXD63L800
In Stock
From
$2,229.98
Siemens
800
600
LMXD63L800L
LMXD63L800L
In Stock
From
$2,229.98
Siemens
800
600
LMXD63M500
LMXD63M500
In Stock
From
$5,133.17
Siemens
500
600
LMXD63M700
LMXD63M700
In Stock
From
$2,289.85
Siemens
700
600
LMXD63S800AL
LMXD63S800AL
In Stock
From
$2,229.98
Siemens
800
600
LNX3B100
LNX3B100
In Stock
From
$8,240.82
Siemens
100
600
LNY3B800
LNY3B800
In Stock
From
$24,680.65
Siemens
800
600
LPX3B160
LPX3B160
In Stock
From
$20,016.00
Siemens
1600
600
LXD62B450L
LXD62B450L
In Stock
From
Get Price
Siemens
450
600
LXD62B500
LXD62B500
In Stock
From
$742.60
Siemens
500
600
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.