This is a kit for an OpenKNX-compatible 6-way switching actuator in a 6 TE control cabinet housing with True RMS current measurement.
The switching actuator is equipped with 6 bistable Hongfa HFE20 relays:
- Up to 20 A switching capacity
- At 230 V AC
- Max. inrush current: 320 A (optional 500 A) for 2 ms
The optional housing is printed as standard in an environmentally friendly "PLA+" material, consisting largely of biodegradable components (e.g., corn starch). This material is dimensionally stable up to approximately 55°C. For high currents on the switching channels or high ambient temperatures in the control cabinet, it can also be printed in "PC FR" plastic, which remains dimensionally stable up to approximately 110°C and is also flame-retardant according to UL 94-2023 V-0.
Due to the increased copper thickness, a good soldering iron with sufficient power is required for DIY soldering. To ensure optimal conductivity, thermal relief connections were omitted at the relevant solder joints, meaning the corresponding solder pins are connected to the copper surface all the way around. There are also exposed conductor tracks on the back, which can be coated with additional solder if necessary to achieve even lower resistance at high currents.
If you have any questions or feedback about the project, please make contact!
Please note:
To upload the firmware of all OpenKNX compatible projects offered here in the shop, this programmer needed.
Delivery as a kit:
All OpenKNX-compatible projects offered in the shop are delivered as a kit and without software. The user is free to use his own software or the OpenKNX-compatible software, which is available via the OpenKNX “Open Source” directories on GitHub (OAM Switch Actuator) is available. In the latter case, this can be done with the OpenKNX Toolbox easiest.
Since a switching actuator is usually used with 230 V mains voltage, we would like to point out again that this kit is not a finished and certified product. Therefore, use at your own risk!
