W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

Web-IO Time Switch Digital 4xOut

Time switch in the network - timed switching according to centralized specifications

The Web-IO Time Switch lets you control switching signals according to a calendar file (iCal format / *.ics). The calendar files can either be loaded into the Web-IO via the web interface or the Web-IO can use an online calendar (Google,l Apple iCloud or similar) to independently invoke the switching times. The four switching channels can also be used as an input. Changes to the inputs can then for example be forwarded via email or FTP or displayed directly in the browser.


Switching signals:

  • 4 channels:
    • Can be used optionally as inputs or outputs
    • 24V technology
    • Switching currents up to 500mA
    • 32-bit pulse counter


  • Intuitive Web interface for simpler operation
    • Select between German or English
    • Switching the outputs directly from the Web interface
    • Adaptation for smartphone
    • HTTP and HTTPS
  • Alarm and reporting functions:
    • Email as alarm or state indicator
    • HTTP requests for controlling third-party devices
    • FTP for logging switching events
    • Up to 30 actions can be configured
  • Dynamic integration into other Web sites:
    • Direct access to current states via HTTP requests, AJAX and JavaScript
  • Additional software interfaces for incorporating into your systems/databases:
    • TCP server
    • FTP (data logging)
  • Internal clock
    • Time synchronization using time server calibration
    • Battery-backed device clock
  • Possible applications:
    • Remote monitoring and fault messaging
    • Cross-location switching
    • House and building automation
    • Light, gate and cabinet control
    • More uses can be found here.

Power supply:

  • External power
    • Screw terminal
    • 12 - 24V DC

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance per EN 61000-6-2
    • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3
  • 5 year guarantee

Technical data

Connections, displays and control elements:

Digital in-/outputs:   4 channels can be used optionally as in- or output
    Output for 12-24V, max. 500mA
    max. total current 2A
    Using our coupling relays voltages of even up to
230V can be switched
  Input voltage +/-30V
  protected against reverse connection within this range
  Input switching threshold 9.5V +/- 1V
  "On" current = 2.2 mA
    integrated 32-bit pulse counter
Network:   10/100BaseT autosensing
Power supply:   12-24V DC (approx. 100mA@24V)
Galvanic isolation:   Digital in-/outputs - network: min. 1000 V
Connections:   1 x 11x screw terminal for IOs and supply - plug-in
1 x RJ45 for network
Indicators:   Status LEDs for network
  4 LEDs for digital status

Data transmission:

Protocols:   HTTP and HTTPS
  TCP socket server
SMTP e-mail sending
  Inventory keeping, group management
Response times:   Data and switching traffic: typically 12 ms
Calendar file format:   iCal (*.ics)

Housing and other data:

Housing:   Plastic housing for top hat rail installation
precise fit for sub-distribution systems
  90x45x56mm (lxwxh)
Enclosure rating:   IP20
Weight:   approx. 140 g
Storage temperature:   -25°C - 70°C
Operating temperature:   0°C - 60°C
Permissible relative humidity:   5..95% RH (non-condensing)
Scope of delivery:  

1 x Web-IO Time Switch Digital 4xOut
1 x Quick Guide
Power supply and other accessories can be
ordered separately


*Net unit price for
commercial users
  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 21.00€
    • Plug-in Power Supply, 24V / 750mA DC with Euro, US and UK plug
    • 11026
    • 38.00€
    • Power supply for DIN rail, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 33.00€
  • Coupling relay for up to 230V

    • 230V coupling relay - 1 x changeover
      for DIN rail mount
    • 57015
    • 22.00€
    • 230V coupling relay - 2 x changeover
      for DIN rail mount
    • 57016
    • 22.00€
  • Mechanical Accessories

    • 19" DIN rail
    • 58813
    • 21.00€
    • Wall mount housing, enclosure rating IP66 / IP67
    • 11120
    • 54.00€
  • Supplementary network products

    • Ethernet Switch Gigabit Industry, 4 Ports
    • 55614
    • 148.00€
    • Motherbox 3
    • 50504
    • 328.00€

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.