AIRPAX/Sensata LEL series hydraulic magnetic circuit protectors are designed to provide low-cost power switching, reliable circuit protection, and accurate circuit control for equipment in the international marketplace. These protectors are available in a wide variety of configurations, including series, series with auxiliary switch, shunt, and relay options, with choices of delays and ratings in DC and/or 50/60Hz or 400Hz versions. They are UL listed, CSA certified, and CCC approved, meeting various industry standards like VDE 0660, part 101, and IEC spacing requirements. Multi-pole units are internally coupled, ensuring simultaneous tripping of all poles in case of a fault, making them suitable for polyphase circuits and applications requiring coordinated protection.