The AIRPAX/SENSATA 209 series hydraulic magnetic circuit protectors offer a robust solution for branch circuit protection. These breakers combine power switching with accurate and reliable protection in a compact, single or multi-pole unit, making them suitable for applications like EDP, air conditioners, panel boards, and lighting controls. Utilizing the hydraulic-magnetic principle, the 209 family adapts to local conditions, minimizing nuisance tripping caused by temperature variations. They are designed to withstand high pulses without affecting normal delay curves, providing consistent performance and protection.