The AIRPAX/Sensata LEL Series Hydraulic Magnetic Circuit Protectors offer a robust solution for power switching, circuit protection, and control in a wide range of applications. These protectors are designed for the international marketplace and are available in single, two, three, and four-pole configurations. They feature internally coupled trip mechanisms, ensuring simultaneous opening of all poles in the event of a fault. The LEL models are UL listed and CSA certified, meeting various international standards. Options include series construction, auxiliary switches for SELV and hazardous voltage mixing, and a variety of delay and rating choices in DC, 50/60Hz, or 400Hz versions. They are ideal for polyphase circuits, single-phase three-wire systems, and applications requiring electrically isolated circuits.