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WR- Series
2-Wire Switches

2-wire switches

  • Douglas 2-wire switches utilize internal diodes to provide an ON or OFF pulse
  • All switches in a station can connect to the same 24VAC power common and switches can connect to multiple relays, minimizing wiring
  • White terminal of a switch connects to 24VAC source, red terminal connects to relay(s)
  • LED indicator switches (green = OFF, red = ON) require no additional wiring
  • LED indicator switches include a space inside the cap for a switch label
  • Douglas 2-Wire switches include:
    • WR-8001 (rocker switch)
    • WR-8121 (toggle switch)
    • WR-8124 (toggle key switch)
    • WRK-8201 (key switch)
    • WR-8292 (lockout switch)
    • WR-8301 (foot switch)
    • WR-8321 (vandal proof switch)
    • WR-8501 (LED switch
    • WR-8503 (3-LED switch module)
  • Switches are designed to fit into into standard Douglas hardware. Different types of switches can be installed within the same wall box
  • Douglas also provides dry-contact switches for signaling other systems and/or devices

    • For more information:
    Douglas Switches .pdf
    Toggle Switches .pdf