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
PCFG31400
PCFG31400
Limited Stock
From
Get Price
Westinghouse
1400
PCFG31600
PCFG31600
Limited Stock
From
Get Price
Westinghouse
1600
PCFG31800
PCFG31800
Limited Stock
From
Get Price
Westinghouse
1800
PCFG32000
PCFG32000
Limited Stock
From
Get Price
Westinghouse
2000
PCFG32500
PCFG32500
Limited Stock
From
Get Price
Westinghouse
2500
PCFG32500F
PCFG32500F
Limited Stock
From
Get Price
Westinghouse
2500
PCFGA32500
PCFGA32500
Limited Stock
From
Get Price
Westinghouse
2500
PCFGA32500F
PCFGA32500F
Limited Stock
From
Get Price
Westinghouse
2500
SPB100
SPB100
Limited Stock
From
Get Price
Westinghouse
3000
SPB100-3P-2500A-EO-DO
SPB100-3P-2500A-EO-DO
Limited Stock
From
Get Price
Westinghouse
2500
SPB100-3P-3000A-MO-BO
SPB100-3P-3000A-MO-BO
Limited Stock
From
Get Price
Westinghouse
3000
SPB100-3P-800A-BO-LS
SPB100-3P-800A-BO-LS
Limited Stock
From
Get Price
Westinghouse
800
SPB150-3P-1200A-MO-BO
SPB150-3P-1200A-MO-BO
Limited Stock
From
Get Price
Westinghouse
1200
177C181G37
177C181G37
Limited Stock
From
Get Price
Westinghouse
600
177C181G38
177C181G38
Limited Stock
From
Get Price
Westinghouse
700
177C181G39
177C181G39
Limited Stock
From
Get Price
Eaton
800
177C181G40
177C181G40
Limited Stock
From
Get Price
Westinghouse
900
177C181G41
177C181G41
Limited Stock
From
Get Price
Westinghouse
1000
177C181G42
177C181G42
Limited Stock
From
Get Price
Westinghouse
1200
177C181G43
177C181G43
Limited Stock
From
Get Price
Westinghouse
1400
177C181G44
177C181G44
Limited Stock
From
Get Price
Westinghouse
1600
177C181G45
177C181G45
Limited Stock
From
Get Price
Westinghouse
1800
177C181G46
177C181G46
Limited Stock
From
Get Price
Westinghouse
2000
504C585G03
504C585G03
Limited Stock
From
Get Price
Westinghouse
1000

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.