The AIRPAX/SENSATA 209/219/229/249/279 series hydraulic magnetic circuit protectors offer a robust solution for branch circuit protection. These circuit 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, these protectors adapt to local environments, minimizing nuisance tripping due to temperature variations. They are designed to withstand high pulses without affecting normal delay curves, ensuring consistent protection.