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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
SND69100AH
SND69100AH
In Stock
From
$11,525.93
Siemens
1000
600
SND69100ANGT
SND69100ANGT
In Stock
From
$7,527.60
Siemens
1000
600
SND69100G
SND69100G
In Stock
From
$6,243.21
Siemens
1000
600
SND69120AH
SND69120AH
In Stock
From
$2,716.99
Siemens
1200
600
SND69120ANTH
SND69120ANTH
In Stock
From
$5,764.99
Siemens
1200
600
SND69120G
SND69120G
In Stock
From
$7,491.85
Siemens
1000
600
SND69800A
SND69800A
In Stock
From
$3,467.75
Siemens
800
600
SND69800ANGT
SND69800ANGT
Limited Stock
From
Get Price
Siemens
800
600
SND6A120LSI
SND6A120LSI
In Stock
From
$4,132.22
Siemens
1200
600
SND6B120LSIH
SND6B120LSIH
In Stock
From
$7,628.72
Siemens
1200
600
SPD69140
SPD69140
In Stock
From
$9,753.26
Siemens
1400
600
SPD69140G
SPD69140G
In Stock
From
$9,753.26
Siemens
1400
600
SPD69140NGT
SPD69140NGT
In Stock
From
$5,959.66
Siemens
1400
600
SPD69140NT
SPD69140NT
In Stock
From
$9,753.26
Siemens
1400
600
SPD69160
SPD69160
In Stock
From
$4,733.82
Siemens
1600
600
SPD69160G
SPD69160G
In Stock
From
$8,894.41
Siemens
1600
600
SPD69160NT
SPD69160NT
In Stock
From
$6,260.03
Siemens
1600
600
STD63F2000
STD63F2000
In Stock
From
$15,570.50
Siemens
2000
600
STD63F2000H
STD63F2000H
In Stock
From
$15,570.50
Siemens
2000
600
STD63F2500
STD63F2500
In Stock
From
$24,764.96
Siemens
2500
600
STD63F2500H
STD63F2500H
Limited Stock
From
Get Price
Siemens
2500
600
W60993
W60993
In Stock
From
$701.21
Siemens
-
-
3VA4150-6ED24-0AA0
3VA4150-6ED24-0AA0
In Stock
From
$401.16
Siemens
125
600
JJ3S400
JJ3S400
In Stock
From
$728.85
Siemens
400
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.