1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Insulated Case Circuit Breaker

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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
SED14E1C1S1M2
SED14E1C1S1M2
Limited Stock
From
Get Price
Schneider Electric
1400
SED14M2
SED14M2
Limited Stock
From
Get Price
Square D
1400
SED14S1XA
SED14S1XA
Limited Stock
From
Get Price
Schneider Electric
1400
SED16
SED16
Limited Stock
From
Get Price
Square D
1600
SED16A2
SED16A2
Limited Stock
From
Get Price
Schneider Electric
1600
SED16A4
SED16A4
Limited Stock
From
Get Price
Schneider Electric
1600
SED16A6
SED16A6
Limited Stock
From
Get Price
Square D
1600
SED16A8
SED16A8
Limited Stock
From
Get Price
Square D
1600
SED16E1C1S1
SED16E1C1S1
Limited Stock
From
Get Price
Square D
1600
SED16E1C1S1M2
SED16E1C1S1M2
Limited Stock
From
Get Price
Square D
1600
SED16M2
SED16M2
Limited Stock
From
Get Price
Square D
1600
SED16S1XA
SED16S1XA
Limited Stock
From
Get Price
Schneider Electric
1600
SED18A2
SED18A2
Limited Stock
From
Get Price
Square D
1800
SED18A4
SED18A4
Limited Stock
From
Get Price
Square D
1800
SED18A8
SED18A8
Limited Stock
From
Get Price
Schneider Electric
1800
SED18E1C1S1
SED18E1C1S1
Limited Stock
From
Get Price
Square D
1800
SED18E1C1S1M2
SED18E1C1S1M2
Limited Stock
From
Get Price
Schneider Electric
1800
SED18M2
SED18M2
Limited Stock
From
Get Price
Square D
1800
SED18S1XA
SED18S1XA
Limited Stock
From
Get Price
Square D
1800
SED20
SED20
Limited Stock
From
Get Price
Schneider Electric
2000
SED20A2
SED20A2
Limited Stock
From
Get Price
Square D
2000
SED20A4
SED20A4
Limited Stock
From
Get Price
Square D
2000
SED20A6
SED20A6
Limited Stock
From
Get Price
Square D
2000
SED20A8
SED20A8
Limited Stock
From
Get Price
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.