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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
HDA36060ABBCSL
HDA36060ABBCSL
In Stock
From
$2,275.88
Square D
60
600
HDA36090AABHURYP
HDA36090AABHURYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AAUDYP
HDA36090AAUDYP
In Stock
From
$1,080.28
Square D
90
600
HDA36100U44XAEBHUNYP
HDA36100U44XAEBHUNYP
In Stock
From
$1,557.58
Square D
100
600
HDA36150YP
HDA36150YP
In Stock
From
$2,650.24
Square D
150
600
HDF36015
HDF36015
In Stock
From
$315.13
Square D
15
600
HDF36030
HDF36030
In Stock
From
$494.22
Schneider Electric
30
600
HDF36050
HDF36050
In Stock
From
$171.38
Schneider Electric
50
600
HDF36070
HDF36070
In Stock
From
$625.79
Square D
70
600
HDF36080
HDF36080
In Stock
From
$636.90
Schneider Electric
80
600
HDF36100
HDF36100
In Stock
From
$266.68
Schneider Electric
100
600
HDF36150
HDF36150
In Stock
From
$1,209.95
Schneider Electric
150
600
HDK3B050L
HDK3B050L
Limited Stock
From
Get Price
Siemens
50
600
HDK3B060L
HDK3B060L
In Stock
From
$1,639.93
Siemens
60
600
HDK3B100L
HDK3B100L
In Stock
From
$1,639.55
Siemens
100
600
HDK3B125L
HDK3B125L
In Stock
From
$1,551.98
Siemens
125
600
HDK3T100L
HDK3T100L
In Stock
From
$1,693.28
Siemens
100
600
HDK3V100L
HDK3V100L
In Stock
From
$10,070.00
Siemens
100
600
HDL36020AA
HDL36020AA
In Stock
From
$849.96
Schneider Electric
20
600
HDL36020C
HDL36020C
In Stock
From
$824.19
Square D
20
600
HDL36030C
HDL36030C
In Stock
From
$812.19
Schneider Electric
30
600
HDL36040C
HDL36040C
In Stock
From
$395.81
Schneider Electric
40
600
HDL36040LU
HDL36040LU
In Stock
From
$484.08
Schneider Electric
40
600
HDL36050LU
HDL36050LU
In Stock
From
$690.61
Square D
50
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.