Technical specifications Tehnični_list_GWD2_EN.pdf
Guide GWD2_ENG.pdf
Photo Komunikacijski_modul_SELTRON_GWD2_pogled_od_spredaj.tif


The WiFi communication interface GWD2 serves as the connection between Seltron controllers, room units and thermostats into the common SeltronHome platform.



  • It can be used in domestic WiFi network or via a mobile WiFi access point since the SeltronHome communication platform uses very little data (up to60 MB per month for two linked controllers).



  • Connection of up to two Seltron controllers.
  • Remote GWD (OTA) communication module software updates.
  • LED indicating input and output statuses.
  • Simple one-touch (WPS) WiFi setup configuration.
  • Easy wall installation with two supplied screws and an easy connection to the Seltron controller using a two-wire cable.
  • It features remote management, the configuration and servicing of devices anyplace and anytime.

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LED indicating the input status2
LED indicating WiFi network connection statusyes
LED indicating SeltronHome platform connection statusyes
Communication interface reset button and WPS connection buttonyes
Wired communication for controller connection2
Network protocolModBus
Possibility of wall installationyes
Simple installation and connectionyes
Energy consumption0.5 W
Data usage during the communication with the platform~30 MB/controller/month
Method of installationOn the wall
Degree of protectionIP20 according to EN 60529
Safety class according to SIST EN 60730-1II
Cross-section of network conductors0.5÷0.75 mm2
Cross-section of communication conductors0.25÷0.33 mm2
Permissible relative humidity85 % RH at 25 °C
Housing materialPC – thermoplastic
Ambient temperature in the vicinity of the device5÷40 °C
Storage temperature-20÷65 °C
Product weight240 g
No. of pieces in the packaging unit24 pcs
Dimensions (WxHxD): 90x90x44mmCommunication interface GWD2 dimensions
Electrical connectionCommunication interface GWD2 electrical connection


  Article - Nr. Products
1GWD2-040 1GWD2-040 Communication module GWD2