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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
3VL9800-3MN00
3VL9800-3MN00
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Siemens
-
-
3VU1340-1ML00
3VU1340-1ML00
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Siemens
-
-
3VU2052-0HL60
3VU2052-0HL60
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Siemens
-
-
5SL6616-6
5SL6616-6
Limited Stock
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Siemens
16
400
5SU1354-0KK13
5SU1354-0KK13
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Siemens
13
400
5SU1354-6KK06
5SU1354-6KK06
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Siemens
6
400
5SU1354-6KK16
5SU1354-6KK16
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Siemens
16
400
5SU1354-6KK25
5SU1354-6KK25
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Siemens
25
400
B1515NI
B1515NI
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Siemens
15
120
BF1B015FD
BF1B015FD
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Siemens
15
120
BF1B020FD
BF1B020FD
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Siemens
20
120
BF1B030FD
BF1B030FD
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Siemens
30
120
BG2B030
BG2B030
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Siemens
30
120
BQ2H025
BQ2H025
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Siemens
25
240
EQ8681R
EQ8681R
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Siemens
100
240
Q115AFCH
Q115AFCH
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Siemens
15
240
Q120AFCH
Q120AFCH
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Siemens
20
240
Q170HH
Q170HH
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Siemens
70
120
Q211000S01
Q211000S01
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Siemens
110
240
QF1B120
QF1B120
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Siemens
20
120
SCJD6B200LSI
SCJD6B200LSI
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From
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Siemens
200
600
SCJD6B400LIG
SCJD6B400LIG
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From
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Siemens
400
600
SCJD6B400LSI
SCJD6B400LSI
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From
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Siemens
400
600
SCJD6B400LSIG
SCJD6B400LSIG
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From
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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.