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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
HDK3R060L
HDK3R060L
Limited Stock
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Siemens
60
600
HDK3R100L
HDK3R100L
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Siemens
100
600
HDK3R150L
HDK3R150L
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Siemens
150
600
HDK3T060L
HDK3T060L
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Siemens
60
600
HDK3T150L
HDK3T150L
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Siemens
150
600
HDK3V060L
HDK3V060L
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Siemens
60
600
HDK3V150L
HDK3V150L
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Siemens
150
600
HDK3W060L
HDK3W060L
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Siemens
60
600
HDK3W100L
HDK3W100L
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Siemens
100
600
HDK3W150L
HDK3W150L
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From
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Siemens
150
600
HDM3L150L
HDM3L150L
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Siemens
150
600
HE3B025
HE3B025
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ITE
25
480
HE3B150
HE3B150
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Siemens
150
480
HE3M050
HE3M050
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Siemens
50
480
HEB3B030B
HEB3B030B
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Siemens
30
600
HEB3B035
HEB3B035
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Siemens
35
600
HEB3B050
HEB3B050
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Siemens
50
600
HEB3B060
HEB3B060
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Siemens
60
600
HEB3B070B
HEB3B070B
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Siemens
70
600
HEB3B080
HEB3B080
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Siemens
80
600
HEB3B080B
HEB3B080B
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Siemens
80
600
HEB3B090
HEB3B090
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Siemens
90
600
HEB3B100
HEB3B100
Limited Stock
From
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Siemens
100
600
HEB3B110
HEB3B110
Limited Stock
From
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Siemens
110
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.