The AIRPAX / SENSATA 219-3-1-66F-7-5-5 is a hydraulic magnetic circuit protector within the 209 series family. This circuit breaker combines power switching with accurate and reliable circuit protection in a compact, single or multi-pole unit, ideal for branch circuit applications such as EDP, air conditioners, panel boards, and lighting controls. Utilizing the hydraulic-magnetic principle, it adapts to local applications and environments, minimizing nuisance tripping due to temperature variations. It is designed to withstand high pulses without tripping and is available with various configurations and terminal styles.