Affordable Siemens NXD63B900 – 900A 3 Pole Molded Case Circuit Breaker

Engineered for heavy-duty industrial applications, the Siemens NXD63B900 is a 900-amp, 3-pole molded case circuit breaker from the Sentron ND-Frame family. It delivers reliable long-time and instantaneous (LI) protection with a fixed thermal and adjustable magnetic trip unit. This bolt-on MCCB installs into Siemens P4 and P5 panelboards, switchboards, and motor control centers. The non-interchangeable trip design allows for reverse feeding. Rated at 65kAIC at 240VAC and 50kAIC at 480VAC.