ASCO Model 252 (Edco HSP Series) Surge Protective Device

The ASCO Model 252 Surge Protective Device is an advanced three-stage hybrid, solid state power line protector. Features such as noise filtering, common mode and normal mode suppression, nanosecond reaction time, power line tracking, and compression screw terminations, make the Model 252 Surge Protective Device an excellent choice in commercial and industrial applications.


  • Fast response time
  • Failure indicator
  • Power line tracking
  • EMI/RFI noise filtering
  • Three-stage hybrid design


  • Replaceable fuse
  • Enclosure Options
  • 5 Year Warranty

Technical Specifications