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Insulated Case Circuit Breaker

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Insulated Case Circuit Breaker

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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
MDSC4N3HEA405GNMNN4ENNNBX	Limited Stock From Get Price	Eaton	4000
MDSC4N3WEA40MTCKH44YCANAX	Limited Stock From Get Price	Cutler Hammer	4000
MDSC4N3WEA40MTHKHN6YCANAX	Limited Stock From Get Price	Cutler Hammer	4000
MDSC4N3WEA40MTNMNN6YCYNAX	Limited Stock From Get Price	Cutler Hammer	4000
MDS6163VEA	Limited Stock From Get Price	Cutler Hammer	1600
MDS6323WEA321CANAA4YNNNAX	Limited Stock From Get Price	Cutler Hammer	2300
MDS6203WEA2052ANAA4NPNNPX	Limited Stock From Get Price	Eaton	2000
MDS8163WEA12MUANA34YPANAX	Limited Stock From Get Price	Eaton	1600
MDSC4N3WEA401CCNAN6NMNNAX	Limited Stock From Get Price	Eaton	4000
MDSC4N3WEA401CNMNN4ENANAX	Limited Stock From Get Price	Eaton	4000
MDSC4N3WEA401CNMNN4YNNNAX	Limited Stock From Get Price	Eaton	4000
PB31400	Limited Stock From Get Price	Eaton	1400
PB31400PR	Limited Stock From Get Price	Westinghouse	1400
PB31600PR	Limited Stock From Get Price	Cutler Hammer	1600
PB32500WK	Limited Stock From Get Price	Cutler Hammer	2500
PB33000	Limited Stock From Get Price	Cutler Hammer	3000
PB3600PR	Limited Stock From Get Price	Cutler Hammer	600
PB3700	Limited Stock From Get Price	Westinghouse	700
PB3800	Limited Stock From Get Price	Cutler Hammer	800
PB3900	Limited Stock From Get Price	Westinghouse	900
MDS6303WEA251GAMNN4YPNNAX	Limited Stock From Get Price	Cutler Hammer	3000
MDS6323WEA321CANAA2YNNNAX	Limited Stock From Get Price	Cutler Hammer	2300
MDN84N	Limited Stock From Get Price	Eaton	4000
MDS4083HEA0852NMNN2EMNNAX	Limited Stock From Get Price	Eaton	800

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.