The Airpax™ AP series are fully sealed, magnetic circuit protectors designed to combine power switching with accurate and reliable circuit protection. These protectors feature inverse time delays and a trip-free action, ensuring the circuit opens even when the handle is held in the ON position. Available in DC, 50/60Hz, or 400Hz versions, they cater to diverse application requirements. Typical applications include communication, navigation, aircraft instrumentation, radar, and power supplies. The AP series is also available as the UP series, recognized by UL and CSA, and the AP-MIL series, produced to MIL-PRF-39019 standards for demanding military applications. Multi-pole configurations offer flexibility for protecting multiple circuits simultaneously.