Refine Results

In Stock

Applied Filters:

Square D

Subcategory

All

Manufacturers (1)

Square D

Amperage

All

Poles

All

Circuit Breaker

For power distribution and electrical protection systems, circuit breakers are among the most critical components for safeguarding equipment, personnel, and facilities from electrical overloads and short circuits. Circuit breakers automatically interrupt electrical current flow when abnormal conditions are detected, protecting circuits from damage while allowing manual reset and continued operation. Electrical.com carries an extensive selection of 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, manufacturing facilities, data centers, and industrial power distribution applications.

Popular Categories

Air

Insulated Case

Molded Case

SORT BY

Part Number	PRICE	Manufacturer	Amperage	Poles
HDA36040BHUJ	In Stock From $648^.56	Square D	40	3
HDA36040BHUJYP	In Stock From $648^.56	Square D	40	3
HDA36040BHUK	In Stock From $648^.56	Square D	40	3
HDA36040BHUKYP	In Stock From $648^.56	Square D	40	3
HDA36040BHUN	In Stock From $648^.56	Square D	40	3
HDA36040BHUNYP	In Stock From $648^.56	Square D	40	3
HDA36040BHUO	In Stock From $648^.56	Square D	40	3
HDA36040BHUOYP	In Stock From $648^.56	Square D	40	3
HDA36040BHUP	In Stock From $648^.56	Square D	40	3
HDA36040BHUPYP	In Stock From $648^.56	Square D	40	3
HDA36040BHUR	In Stock From $648^.56	Square D	40	3
HDA36040BHURYP	In Stock From $648^.56	Square D	40	3
HDA36040BHUS	In Stock From $648^.56	Square D	40	3
HDA36040BHUSYP	In Stock From $648^.56	Square D	40	3
HDA36040BHYP	In Stock From $648^.56	Square D	40	3
HDA36040BK	In Stock From $648^.56	Square D	40	3
HDA36040BKSD	In Stock From $648^.56	Square D	40	3
HDA36040BKSDYP	In Stock From $648^.56	Square D	40	3
HDA36040BKSH	In Stock From $648^.56	Square D	40	3
HDA36040BKSHYP	In Stock From $648^.56	Square D	40	3
HDA36040BKSJ	In Stock From $648^.56	Square D	40	3
HDA36040BKSJYP	In Stock From $648^.56	Square D	40	3
HDA36040BKSK	In Stock From $648^.56	Square D	40	3
HDA36040BKSKYP	In Stock From $648^.56	Square D	40	3

1
...
466
467
468
...
13,245

Popular Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit protection equipment available for immediate shipment. From residential to industrial applications, across all voltage and amperage ratings, we have what you need when others say no. Our comprehensive circuit breaker inventory spans all voltage classes, amperage ratings, and pole configurations 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 circuit breakers serve critical applications across manufacturing facilities, commercial buildings, data centers, healthcare facilities, utilities and power generation, industrial plants, residential construction, telecommunications infrastructure, and process control installations.

Whether you're maintaining legacy equipment with obsolete circuit breaker models or sourcing current production components for new electrical systems, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime and keep your operations running. Need 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.

Learn More

The Basics of A Circuit Breaker

The Main Types Of Breaker Protections