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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
SEFG14E1C1S1M2
SEFG14E1C1S1M2
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Schneider Electric
1400
SEFG14M2
SEFG14M2
Limited Stock
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Schneider Electric
1400
SEFG14S1XA
SEFG14S1XA
Limited Stock
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Schneider Electric
1400
SEFG16A2
SEFG16A2
Limited Stock
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Square D
1600
SEFG16A4
SEFG16A4
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Schneider Electric
1600
SEFG16A8
SEFG16A8
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Square D
1600
SEFG16E1C1S1
SEFG16E1C1S1
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Square D
1600
SEFG16E1C1S1M2
SEFG16E1C1S1M2
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Square D
1600
SEFG16M2
SEFG16M2
Limited Stock
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Schneider Electric
1600
SEFG16S1XA
SEFG16S1XA
Limited Stock
From
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Schneider Electric
1600
SEFG18
SEFG18
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Schneider Electric
1800
SEFG18A2
SEFG18A2
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Schneider Electric
1800
SEFG18A4
SEFG18A4
Limited Stock
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Schneider Electric
1800
SEFG18A8
SEFG18A8
Limited Stock
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Square D
1800
SEFG18E1C1S1
SEFG18E1C1S1
Limited Stock
From
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Square D
1800
SEFG18E1C1S1M2
SEFG18E1C1S1M2
Limited Stock
From
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Schneider Electric
1800
SEFG18M2
SEFG18M2
Limited Stock
From
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Schneider Electric
1800
SEFG18S1XA
SEFG18S1XA
Limited Stock
From
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Schneider Electric
1800
SEFG20
SEFG20
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Square D
2000
SEFG20A2
SEFG20A2
Limited Stock
From
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Schneider Electric
2000
SEFG20A4
SEFG20A4
Limited Stock
From
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Square D
2000
SEFG20A8
SEFG20A8
Limited Stock
From
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Schneider Electric
2000
SEFG20E1C1S1
SEFG20E1C1S1
Limited Stock
From
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Schneider Electric
2000
SEFG20E1C1S1M2
SEFG20E1C1S1M2
Limited Stock
From
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Schneider Electric
2000

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.