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Communication interface GWD3
GWD3E communication interface

GWD3E communication interface

The GWD3 Wi-Fi communication interface is designed to connect Seltron controllers, room units and thermostats to the platform SeltronHome.


The GWD3 communication interface is used to transfer data between Seltron controllers and the SeltronHome platform, allowing remote control and management of the system. The interface connection to the internet can be wired using an Ethernet connection (UTP) or wireless using a Wi-Fi network.


  • Connection of up to two Seltron controllers.
  • Automatic software upgrade of the communication interface is enabled.
  • LED to show the status of inputs and outputs.
  • Easily and automatically connect to a Wi-Fi network using the WPS quick connect button.
  • Easy wall mounting with two included screws and simple connection to the Seltron controller using a 2-wire cable.
  • Allows remote management, configuration and servicing of devices, anywhere, anytime.
Technical dataGWD3
LED for displaying connected Seltron controllersYes
LED to show the connection status to the local network (LAN or Wi-Fi)Yes
LED to show the connection status to the SeltronHome platformYes
Button to reset the communication interface and connect with WPSYes
Setup and installation
Easy installation and connectionYes
Seltron controllers supported
WDC Series - v3.1.0 and laterYes
KXD Series - v1.0.0 and laterYes
WXD Series - v2.0.1 and laterYes
SGC Series - v4.0.0 and later, v3.1.0 (supported without flow measurement)Yes
KUD Series - 1.2.2 and laterYes
KPD Series - v1.3.0 and laterYes
AHD Series - v.1.0.0 and laterYes
AHC Series - v1.0.1 and laterYes
CMP Series - v3.2.0 and laterYes
BXD L Series - v2.1.0 and laterYes
Technical data
Connection voltage230 VAC, 50 Hz
Own consumption0,5 W
Data consumption in communication with the platform~30 MB/regulator/month
Installation methodAbove ground
Degree of protectionIP20 to EN 60529
Safety classII to EN 60730-1
Cross-section of network conductors0,5÷0,75 mm2
Cross-section of communication conductors0,25÷0,33 mm2
Permissible relative humiditymax. 85 % RH at 25 °C
Housing materialPC-termoplast
Ambient temperature of the device5÷40 °C
Storage temperature-20÷65 °C
Wireless connectionWi-Fi IEEE 802.11b/g/n, 2.4 GB
Programme classA
Product weight465 g
Number of pieces per packing unit24 pieces
DimensionsGWD3 rates
Electrical connectionGWD3 electrical connection

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