Product Description: The Square D MEL836LSI is a Molded Case Circuit Breaker from the Pre-Micrologic family. It features 3 poles, 600V voltage, and an 800A amperage rating with a 100kA@480V AIC rating. This breaker uses a Feed-Thru connection and includes Solid State protection with LSI functions for Long-Time, Short-Time, and Instantaneous protection.