The Airpax 209 series hydraulic magnetic circuit protectors combine power switching with accurate and reliable circuit protection in a compact, single or multi-pole unit. Ideal for branch circuit applications like EDP, air conditioners, panel boards, and lighting controls, these protectors utilize the hydraulic-magnetic principle to adapt to various environments. Temperature conditions that affect fuses are not a concern, and the magnetic ampere turn principle minimizes nuisance tripping. The 209 family withstands high pulses without tripping, offering robust protection for a wide range of industrial applications.