Genuine Siemens JD63B400 – 400A 3 Pole Molded Case Circuit Breaker

Providing high-capacity overcurrent defense, the Siemens JD63B400 is a 3-pole, 400A molded case circuit breaker from the proven Sentron JD frame series. It utilizes an interchangeable thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. This unit mount breaker is engineered for compatibility with Siemens Sentron panelboards, switchboards, and motor control centers. It includes TA2J6500 line and load lugs to accommodate 3/0 AWG to 500 kcmil conductors.