The GWD3 communication interface is intended for connection of Seltron controllers, room units and thermostats to the SeltronHome platform.


Application GWD3

GWD3 communication interface is used to transfer data between SELTRON devices and the SeltronHome platform, thus enabling remote control and management of the system. The connection with internet can be wired using Ethernet cable (UTP) or wireless using Wi-Fi network.


Features GWD3

  • Connection of up to two Seltron controllers.
  • Enables automatic software update of the WGD module (OTA).
  • LED indicating input and output statuses.
  • Easy and automatic connection with a Wi-Fi network, using WPS quick connection button.
  • Simple wall installation with two supplied screws and easy connection to the Seltron controller using two-wire cable.
  • It enables remote management, the configuration and servicing of the device from anywhere and anytime.

For more information on remote heating control with SeltronHome, follow the link below

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LED indication of connected Seltron controllers 
LED indication of connection with local network (LAN or Wi-Fi) 
LED indication of connection with SeltronHome platform 
Button for setup of communication interface and WPS 
Possibility of wall installation 
Simple installation and connection 
Series WDC - v3.1.0 and newer 
Series KXD - v1.0.0 and newer 
Series WXD - v2.0.1 and newer 
Series SGC - v4.0.0 and newer 
Series KUD - 1.2.2 and newer 
Series KPD - v1.3.0 and newer 
Series AHD - v.1.0.0 and newer 
Series AHC - v1.0.1 and newer 
Series CMP - v3.2.0 and newer 
Series BXD L - v2.1.0 and newer 
Connection voltage230 V~, 50 Hz
Energy consumption0,5 W
Data usage during communication with platform~30 MB/device/month
Method of installationOn the wall
Degree of protectionIP20 to EN 60529
Safety classII to EN 60730-1
Cross-section of network cables0,5÷0,75 mm2
Cross-section of communication cables0,25÷0,33 mm2
Permitted relative humiditymax. 85 % RH at 25 °C
Housing materialPC-thermoplastic
Permitted ambient temperature5÷40 °C
Storage temperature-20÷65 °C
Wireless connectionWi-Fi IEEE 802.11b/g/n, 2,4 GB
Program classA
Product weight465 g
Nr. of pieces in packing unit24 pcs
DimensionsGWD3 Mere Dimensions Abmessungen
Electrical connectionGWD3 Elektro Prikljucitev Electrical Connection Elektrischer Anschluss

  Article - Nr. Products
1GWD3-040 1GWD3-040 Communication module SELTRON GWD3