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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
RGH320036EC
RGH320036EC
In Stock
From
$13,827.94
Eaton
2000
600
RJA36120CU44A
RJA36120CU44A
In Stock
From
$8,969.75
Square D
1200
600
RJF36160U44A
RJF36160U44A
In Stock
From
$14,566.36
Square D
1600
600
RJF36200
RJF36200
In Stock
From
$7,711.62
Schneider Electric
2000
600
RJF36200U41A
RJF36200U41A
In Stock
From
$12,854.88
Square D
2000
600
RJF36200U63AE1
RJF36200U63AE1
In Stock
From
$22,127.06
Schneider Electric
2000
600
RJF36200U64AE1
RJF36200U64AE1
In Stock
From
$25,999.75
Schneider Electric
2000
600
RKA36120CU44A
RKA36120CU44A
In Stock
From
$30,370.32
Square D
1200
600
RKF36200CU63AE1
RKF36200CU63AE1
In Stock
From
$16,927.16
Schneider Electric
2000
600
RLA36120CU44A
RLA36120CU44A
In Stock
From
$11,080.17
Square D
1200
600
RLF36000S25
RLF36000S25
In Stock
From
$9,240.68
Square D
2500
600
RLF36120CU44A
RLF36120CU44A
In Stock
From
$13,020.22
Square D
1200
600
RLF36200CU31A
RLF36200CU31A
In Stock
From
$9,333.34
Schneider Electric
2000
600
SELA36AT1015C
SELA36AT1015C
In Stock
From
$173.22
General Electric
15
600
SELA36AT1020C
SELA36AT1020C
In Stock
From
$257.23
General Electric
20
600
SELA36AT1030C
SELA36AT1030C
In Stock
From
$329.65
General Electric
30
600
SELA36AT1040C
SELA36AT1040C
In Stock
From
$1,372.59
General Electric
40
600
SELA36AT1060C
SELA36AT1060C
In Stock
From
$386.25
General Electric
60
600
SEPA34AT0030
SEPA34AT0030
In Stock
From
$383.07
General Electric
30
600
SGDA22AT0400
SGDA22AT0400
In Stock
From
$630.83
General Electric
400
600
SGHC3604L4XX
SGHC3604L4XX
In Stock
From
$2,044.13
General Electric
400
600
SGLC3606L3XX
SGLC3606L3XX
In Stock
From
$5,130.36
General Electric
600
600
SHMD69800ANTH
SHMD69800ANTH
In Stock
From
$9,834.82
Siemens
800
600
SKHC3608L3XX
SKHC3608L3XX
In Stock
From
$3,229.80
General Electric
800
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.