The Airpax/Sensata 209, 219, 229, and 249 series hydraulic magnetic circuit protectors combine power switching with accurate and reliable circuit protection. Designed for branch circuit applications, these protectors utilize the hydraulic-magnetic principle, adapting to local conditions and minimizing nuisance tripping due to temperature variations. They withstand high pulses without affecting normal delay curves, making them suitable for diverse industrial environments. Available in various configurations and terminal styles, these circuit protectors offer a versatile solution for power distribution and protection needs.