Product Description: The Square D PXF36700LSI is a Molded Case Circuit Breaker from the Micrologic family. It features a 3-pole design with a 600V, 700A rating and a 100kA@480V AIC rating. This breaker uses a Bolt-On connection and includes Solid State protection with LSI functionality (Long-Time, Short-Time, and Instantaneous). It is built on the PX Frame size.