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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
E3S-A20
E3S-A20
In Stock
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ABB
2000
E3N-A20
E3N-A20
In Stock
From
$16,625.00
ABB
2000
E3S-A16
E3S-A16
In Stock
From
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SACE
1600
E3S-A25
E3S-A25
In Stock
From
$6,478.28
ABB
2500
E2S-A08
E2S-A08
Limited Stock
From
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ABB
800
E3N-A25
E3N-A25
Limited Stock
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ABB
2500
E3S-A12
E3S-A12
Limited Stock
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ABB
1200
D3SC0FD00B000XC
D3SC0FD00B000XC
Limited Stock
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ABB
1600
D3SDGBB00B000XC
D3SDGBB00B000XC
Limited Stock
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ABB
2000
E2B-A16
E2B-A16
Limited Stock
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ABB
1600
E6V-A50
E6V-A50
Limited Stock
From
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ABB
5000
F2S
F2S
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ABB
2500
8122-430
8122-430
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ABB
2000
E3-A
E3-A
Limited Stock
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ABB
400
PS-1600A-EO-BO
PS-1600A-EO-BO
Limited Stock
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SACE
-

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.