The Airpax 209 series hydraulic-magnetic circuit protectors offer a compact and reliable solution for branch circuit protection. Combining power switching with accurate protection, these breakers are suitable for a wide range of applications including EDP, air conditioners, panel boards, and lighting controls. Utilizing the hydraulic-magnetic principle, the 209 family adapts to local conditions, minimizing nuisance tripping. The inertial delay feature is standard for 50/60Hz units, providing protection against inrush currents from transformers and lamps. Available in various configurations and terminal styles, the 209 series provides versatility for diverse industrial needs.