The quad WebRelay is a solution for applications such as industrial control, security, remote control, remote reset, and many other applications that require remote relay control over an IP network. 

Typical applications include:

  • Pumps
  • Valves
  • Motors
  • Lights
  • Gates

Each relay can be turned off, on and pulsed remotely using the build in web page/control page or custom script from a PC or dedicated controller.



  • Built-in web server for setup and remote relay control from a web-browser
  • XML status and control page Can operate as a Modbus/TCP slave device
  • Four independent, 28VAC, 24VDC, 3A relays SPDT (Form C)
  • ON/OFF or Pulse relay modes
  • DIN-Rail/wall mountable
  • 2-piece (14-pin) industrial terminal connector

Power Requirements

  • 9-28 VDC

Max Current:

  • 320mA Max

Relay Contacts

  • Number of Relays: 4
  • Max Voltage: 28VAC, 24VDC
  • Max Current: 3A
  • Contact Type: SPDT (Form C)
  • Load Type: General Purpose
  • Contact Resistance: < 50 milliohms initial
  • Contact Material: AgSnO2
  • Electrical Life: 100K cycles (Typical)
  • Mechanical Life: 10M cycles (Typical)
  • Environmental Rating: Over voltage Category II, Pollution Degree 2
  • Relay Modes: ON/OFF or Pulse
  • Pulse Timer Duration: 0.1 to 86,400 Seconds (1-day)


  • Type: 10/100 Base-T Ethernet Port
  • Setup: Static IP address assignment. TCP port selectable


  • Power & Relays 1-4: 14-Position, 3.81mm terminal spacing, Removable. For 16-28 AWG wire.
  • Network: 8-pin RJ-45

LED Indicators

  • Number of LEDs: 7
    • Power on
    • Relay coil energized 1-4
    • Network linked
    • Network activity


  • Operating Temperature: -40°C to 65.5°C
  • Size: 35.7x98.5x78 (WxHxD mm)
  • Weight: 142 grams
  • Enclosure Material: Lexan 940 Polycarbonate Plastic
  • Enclosure Flame Rating: UL94 V0


  • HTTP, XML, Modbus TCP/IP
Brand Control By Web
Shipping Weight 0.2000kg

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