ASCO Model 233 (Edco SPA-100T and SPA-300) Surge Protective Device

The ASCO Model 233 Surge Protective Device is designed to protect sensitive electronic equipment such as traffic controllers, from high energy surges. The Model 233 incorporates MOV technology which clamps these surges before equipment damage occurs.


  • 13kA and 40kA surge protection
  • Fast response time
  • Solid-state design
  • Epoxy encapsulated


5 Year Warranty

Technical Specifications