ASCO Model 170 (Edco 5W8-30) Surge Protective Device

The ASCO Model 170 is an access control protection module designed for typical Wiegand outputs for access devices. This is a 5-wire module that accommodates low voltage data lines for 5 VDC circuits. Fifth wire power protection will allow up to 24 VDC.


  • Automatic recovery
  • Fast response time
  • Resettable fusing — PTCs Plug-in module
  • Data and power protection combined
  • Sneak/fault current protection (data only)
  • Silicon avalanche technology


  • Requires accessory PCB1B base
  • Accessory PTU (Pass Thru Unit) available for troubleshooting
  • 5 Year Warranty

Technical Specifications