RS-485/422 surge protective device -- protecting driver/receiver ICs in input-output terminals from surge, such as lightning.


  • Consists of RSSA (silicon surge absorber) and RAV.
  • Excellent response time and endurance.
  • Small gain loss in long distance communication by the use of common mode choke coils in impedance blocks.
  • Available in PCB, terminal block, and DIN rail mounting types.