AIRPAX / SENSATA AP7172F751 Magnetic Circuit Protector
The Airpax™ AP series are fully sealed, magnetic circuit protectors designed to combine power switching with accurate and reliable circuit protection. Unlike thermal protectors, the AP maintains a consistent trip current across a wide temperature range. Available in various versions (DC, 50/60Hz, or 400Hz) and with adjustable delays, the AP adapts to specific application needs. A key feature is the “trip-free” action, which prevents continued operation even when the handle is in the ON position. The AP-MIL protectors meet MIL-PRF-39019 standards and undergo rigorous testing. Typical applications include communication, navigation, aircraft instrumentation, radar, and power supplies. The UP series, UL and CSA certified, offers an optional FM approval for petrochemical applications.