Order Now Siemens LJ63B600 – 600A 3 Pole Molded Case Circuit Breaker

Built for heavy-duty commercial applications, the Siemens LJ63B600 delivers 600A of thermal-magnetic protection across three poles. This 600VAC molded case circuit breaker provides a 35kA interrupting rating at 480V, utilizing a fixed thermal and adjustable magnetic trip unit for precise LI protection. Designed as a unit-mount solution, it integrates seamlessly into Siemens P4 and P5 panelboards. This legacy L-Frame breaker is often replaced by the LXD63B600 or LD63B600 series.