ASCO Model 174 (Edco SLCP Series) Surge Protective Device

The ASCO Model 173 Surge Protective Device is a gold-plated, double-sided card edge module and is designed to mate with the ASCO PCB1B gold-plated female terminal connector (sold separately). When snapped together, the data circuits “pass thru” the protector in a serial fashion from the four “Field Side” terminals to the four “Electronics Side” terminals.


  • Lightning protection for datasignal lines
  • Modes of protection, (L-G, L-L)
  • Plug-in module
  • Low series resistance
  • Fast response time
  • 5 Year Warranty


  • UL Listed
  • 5 Year Warranty
  • 1 Year Warranty (on certain models)

Technical Specifications