The protective enclosure for the solid-state decoupler features an alloy die-cast housing with a wall thickness of ≥4mm and a matte sanded yellow finish. The protective enclosure features excellent waterproofing and a sealed structure resistant to wind and sand, achieving an IP65 protection rating. All connectors are housed within the enclosure without requiring additional accessories. The front of the enclosure is equipped with a lock and bears the lightning symbol with the text “Dangerous Electrical Equipment.” The outer layer of the support column is coated with anti-corrosion paint, with surface rust removal treated to Sa2.5 grade. It incorporates a test pole function and is easy to install.