Cutler Hammer KD3300 3-Pole 300 Amp Molded Case Circuit Breaker

Condition Options

NEW:

Breaker is brand new in box and ships with original manufacturer packaging. It has never been installed or energized. In most cases, the packaging is unopened.

USED:

Breaker has been previously energized and/or installed and is reconditioned and tested by our certified technicians before shipping. All used breakers meet original OEM standards.

Warranty

All breakers come with a minimum one-year replacement warranty, with some new items carrying multi-year factory-backed warranties.

Eaton & Cutler Hammer Circuit Breakers

Cutler-Hammer circuit breakers have long been a staple in North American electrical distribution systems and remain widely recognized by electricians and maintenance professionals. Originally developed under the Cutler-Hammer brand and now manufactured by Eaton, these breakers are commonly found in panelboards, switchboards, and industrial distribution equipment installed over several decades.

Popular Cutler-Hammer breaker families include CH and BR residential breakers, Series C molded case breakers, and a variety of industrial frame breakers used in commercial and industrial facilities. Because Cutler-Hammer equipment was installed extensively in office buildings, manufacturing plants, schools, and municipal facilities, many of these breakers remain in service today.

Eaton circuit breakers are widely used in commercial, industrial, and institutional electrical systems and are known for their durability, advanced protection technology, and extensive product line. Eaton’s breaker portfolio includes Series G molded case breakers, Power Defense molded case breakers, and Magnum and Magnum DS low-voltage power circuit breakers, all commonly found in panelboards, switchboards, and switchgear installations.