Siemens CLF63B150 Molded Case Circuit Breaker

Siemens CLF63B150 is a three‑pole molded‑case circuit breaker rated for 150 A at 600 V, designed to protect three‑phase feeders and motor circuits in commercial and light‑industrial power systems. It employs a thermal‑magnetic trip unit to provide overload protection and fast short‑circuit interruption, with an interrupt rating of 200 kA, enabling it to safely clear high fault currents. As a member of the Siemens CLF family, this MCCB is intended for use in compatible Siemens distribution panels and other frame designs that accept CLF/MCCB line and load terminations. Line and load connections are made within a standard MCCB footprint to support straightforward installation in three‑phase panels. Typical uses include protecting motors, conveyors, and other three‑phase loads where reliable protection against overloads and short circuits is required at up to 600 VAC.