The Airpax/Sensata 209, 219, 229, and 249 series hydraulic magnetic circuit protectors provide robust circuit protection for a wide range of applications. These circuit breakers combine power switching with accurate and reliable protection in a compact, single or multi-pole unit, making them ideal for branch circuit applications such as EDP, air conditioners, panel boards, and lighting controls. The hydraulic-magnetic principle allows the protectors to adapt to local conditions, minimizing nuisance tripping. Available with various configurations and terminal styles, these protectors offer flexibility for diverse industrial needs. They are designed to withstand high pulses without derating protection and are available with inertial delay for inrush current applications.