The AIRPAX/Sensata 209, 219, 229, and 249 series hydraulic magnetic circuit protectors combine power switching with accurate and reliable circuit protection. These breakers are designed for branch circuit applications and utilize the hydraulic-magnetic principle to adapt to various environments. They withstand high pulses without tripping and are available with various configurations and terminal styles to meet specific application needs. The 249 Power Selector Breaker System allows selection of multiple power systems, enhancing flexibility and reliability.