AIRPAX/SENSATA LELHK11 series hydraulic magnetic circuit protectors are designed for low-cost power switching, reliable circuit protection, and accurate circuit control in international markets. These protectors are UL listed, CSA certified, and CCC approved, meeting various industry standards. Available in single, two, three, and four-pole configurations, they cater to diverse applications including polyphase circuits and single-phase three-wire systems. The protectors offer a mix of delays, ratings, and configurations, with optional auxiliary switches for enhanced functionality and safety.