The Delfield SEP90023 Horizontal Palnut Mount Rotary Switch provides reliable multi-position control for compatible commercial refrigeration equipment. Manufactured by Delfield, this rotary switch features five terminals to support varied electrical connections and function settings. It operates by rotating the internal contact mechanism to different positions, directing electrical current to selected circuits based on the chosen setting. The horizontal palnut mount design allows for secure panel installation and stable alignment during operation. Built for consistent performance in demanding environments, it helps ensure accurate equipment control, dependable electrical switching, and smooth day-to-day functionality.