AP112-1-65F-153 is a three-pole, fully sealed hydraulic magnetic circuit protector designed for power switching and accurate, reliable circuit protection with inverse time delay and trip-free features. This unit operates at 50/60Hz with a long time delay (65F) configuration, providing 13 times rated current peak amplitude at 60Hz, and features a nominal current rating of 15 amperes. The three-pole design allows simultaneous protection of three circuits with a single actuating toggle handle that closes all circuits, and all poles trip in the presence of an overload on any circuit. The protector maintains consistent trip current over a wide temperature span, unlike thermal circuit protectors. Common applications include complex circuit configurations requiring rugged three-point panel mounting with shock and vibration resistance.