Refine Results

In Stock

Applied Filters:

Insulated Case Circuit Breaker

Subcategory

Insulated Case Circuit Breaker

Manufacturers

All

Family

All

Amperage

All

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
WLL3D350WF	Limited Stock From Get Price	Siemens	5000
WLL3D350WG	Limited Stock From Get Price	Siemens	5000
WLL3D350WH	Limited Stock From Get Price	Siemens	5000
WLL3D350WJ	Limited Stock From Get Price	Siemens	5000
WLL3D350WK	Limited Stock From Get Price	Siemens	5000
WLL3D350WL	Limited Stock From Get Price	Siemens	5000
WLL3D350WN	Limited Stock From Get Price	Siemens	5000
WLL3D350WP	Limited Stock From Get Price	Siemens	5000
WLL3D350WQ	Limited Stock From Get Price	Siemens	5000
WLL3D350WR	Limited Stock From Get Price	Siemens	5000
WLL3D350WT	Limited Stock From Get Price	Siemens	5000
WLL3D350WU	Limited Stock From Get Price	Siemens	5000
WLL3D350WW	Limited Stock From Get Price	Siemens	5000
WLL3D350WY	Limited Stock From Get Price	Siemens	5000
WLL3D350Y	Limited Stock From Get Price	Siemens	5000
WLL3D350YA	Limited Stock From Get Price	Siemens	5000
WLL3D350YB	Limited Stock From Get Price	Siemens	5000
WLL3D350YC	Limited Stock From Get Price	Siemens	5000
WLL3D350YD	Limited Stock From Get Price	Siemens	5000
WLL3D350YE	Limited Stock From Get Price	Siemens	5000
WLL3D350YF	Limited Stock From Get Price	Siemens	5000
WLL3D350YG	Limited Stock From Get Price	Siemens	5000
WLL3D350YH	Limited Stock From Get Price	Siemens	5000
WLL3D350YJ	Limited Stock From Get Price	Siemens	5000

1
...
13,086
13,087
13,088
...
13,851

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.