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Insulated Case Circuit Breaker

For circuit breaker applications in commercial and industrial power distribution systems, insulated case circuit breakers are among the most critical components for reliable overcurrent protection and system safety. Insulated case circuit breakers provide adjustable trip settings and high interrupting capacity while offering compact installation in panelboards and switchboards. Electrical.com carries an extensive selection of insulated 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, industrial facilities, data centers, and healthcare infrastructure applications.
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Part Number
PRICE
Manufacturer
Amperage
SEF361400LSIV1
SEF361400LSIV1
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Square D
1400
SEF361400LSMR
SEF361400LSMR
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Square D
1400
SEF361400LSS1
SEF361400LSS1
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Square D
1400
SEF361400LSS2
SEF361400LSS2
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Square D
1400
SEF361400LSS3
SEF361400LSS3
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Schneider Electric
1400
SEF361400LSS4
SEF361400LSS4
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Schneider Electric
1400
SEF361400LST1
SEF361400LST1
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Schneider Electric
1400
SEF361400LST2
SEF361400LST2
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Schneider Electric
1400
SEF361400LST3
SEF361400LST3
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Square D
1400
SEF361400LST4
SEF361400LST4
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Schneider Electric
1400
SEF361400LSV1
SEF361400LSV1
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Square D
1400
SEF361400MR
SEF361400MR
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Schneider Electric
1400
SEF361400S1
SEF361400S1
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Schneider Electric
1400
SEF361400S2
SEF361400S2
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Schneider Electric
1400
SEF361400S3
SEF361400S3
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Square D
1400
SEF361400S4
SEF361400S4
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Square D
1400
SEF361400T1
SEF361400T1
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Schneider Electric
1400
SEF361400T2
SEF361400T2
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Schneider Electric
1400
SEF361400T3
SEF361400T3
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Square D
1400
SEF361400T4
SEF361400T4
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Square D
1400
SEF361400V1
SEF361400V1
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Square D
1400
SEF361600
SEF361600
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Schneider Electric
1600
SEF361600A4
SEF361600A4
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Schneider Electric
1600
SEF361600A8
SEF361600A8
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Square D
1600

Electrical.com stocks the largest inventory of insulated case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit breakers available for immediate shipment. From low voltage to medium voltage applications, we have the insulated case breakers you need when others say no. Our comprehensive insulated case circuit breaker inventory spans all amperage ratings, voltage classes, and frame sizes 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 insulated case circuit breakers serve critical applications across industrial power distribution systems, manufacturing facilities, commercial buildings, data centers, utility substations, process control installations, and heavy industrial equipment.


Whether you're maintaining legacy electrical systems with obsolete insulated case breaker models or sourcing current production breakers for new installations and upgrades, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need insulated 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.