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
MDN4083LEA0122NMNFNYNRMPX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRMSX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRMWX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRNAX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRNCX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRNPX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRNSX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNRNWX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYCAX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYCCX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYCPX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYCSX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYCWX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYDAX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYDCX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYDPX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYDSX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYDWX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYMAX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYMCX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYMPX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYMSX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYMWX	Limited Stock From Get Price	Cutler Hammer	800
MDN4083LEA0122NMNFNYNYNAX	Limited Stock From Get Price	Cutler Hammer	800

1
...
601
602
603
...
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.