The AIRPAX/SENSATA LELHK11-1REC4-52-40.0-01-V is a hydraulic magnetic circuit protector offering low-cost power switching, reliable circuit protection, and accurate circuit control for equipment in the international marketplace. These protectors are UL listed, CSA certified, and CCC approved, meeting various industry standards. They are available in series, series with auxiliary switch, shunt, and relay configurations, catering to diverse applications. The multi-pole units feature internally coupled mechanisms, ensuring simultaneous tripping of all poles in case of a fault, making them suitable for polyphase circuits and other electrically isolated systems. The LEL models are UL listed and CSA certified, providing robust and reliable protection for a wide range of industrial applications.