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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
HMXD63B800H
HMXD63B800H
In Stock
From
$4,788.52
Siemens
800
600
HND63B100
HND63B100
In Stock
From
$3,755.02
Siemens
1000
600
HND63B120
HND63B120
In Stock
From
$3,247.82
Siemens
1200
600
HNG3F120
HNG3F120
In Stock
From
$3,752.20
Siemens
1200
600
HNX3E120
HNX3E120
In Stock
From
$5,596.00
Siemens
1200
600
HNXD63B100H
HNXD63B100H
In Stock
From
$2,946.66
Siemens
1000
600
HNXD63B900
HNXD63B900
In Stock
From
$5,457.77
Siemens
900
600
HNXD63B900H
HNXD63B900H
In Stock
From
$6,602.68
Siemens
900
600
HNY3W120L
HNY3W120L
In Stock
From
$18,445.55
Siemens
1200
600
HP3B160
HP3B160
In Stock
From
$5,380.20
Siemens
1600
600
HP3F120
HP3F120
In Stock
From
$972.74
ITE
1200
600
HP3F160
HP3F160
In Stock
From
$4,871.74
Siemens
1600
600
HPD63B140
HPD63B140
In Stock
From
$12,398.57
Siemens
1400
600
HPXD63B120
HPXD63B120
In Stock
From
$7,601.86
Siemens
1200
600
HPXD63B140
HPXD63B140
In Stock
From
$9,391.67
Siemens
1400
600
HPXD63B160
HPXD63B160
In Stock
From
$5,586.53
Siemens
1600
600
HPXD63B160H
HPXD63B160H
In Stock
From
$2,293.37
Siemens
1600
600
HQJ23B125H
HQJ23B125H
In Stock
From
$383.22
Siemens
125
240
HQJ23B200H
HQJ23B200H
In Stock
From
$863.66
Siemens
200
240
HQJ23B200H00S01
HQJ23B200H00S01
In Stock
From
$863.66
Siemens
200
240
HQJ23B200H00S07
HQJ23B200H00S07
In Stock
From
$863.66
Siemens
200
240
HQJ23B200H01S01
HQJ23B200H01S01
In Stock
From
$863.66
Siemens
200
240
HQJ23B200H01S11
HQJ23B200H01S11
In Stock
From
$863.66
Siemens
200
240
HQJ23B200HL
HQJ23B200HL
In Stock
From
$863.66
Siemens
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.