ZEN78 High Power Relay Change Log
Here are the changes we made to the ZEN78 model so far.
VER. 1.10 (released 09/2025)
Original release
Hardware: 1
- Energy monitoring
- Overload protection
- 800 Series Z-Wave chip
- Two double-pole 40A relays (for both input and output)
- Two screw terminals for an external dry contact wall switch
Firmware: 1.10
- Smart Start
- S2 Authenticated Security
- Z-Wave Long Range ready (support direct, no-mesh communication)
- Power reporting frequency and threshold advanced settings
Firmware: 1.20 (released 04/2026 as OTA)
- Fixed a bug where a ZEN78 powered on outside the Z-Wave network and later added would fail to start scheduled kWh reporting correctly. Now, the device reports kWh properly regardless of when it is added to the network and follows parameter 6 settings as expected.
Firmware: 1.30 (released 07/2026 as OTA)
- Fixed: Resolved an issue where Parameter 16 (Turn-On Delay After Power Outage) was not applied when Parameter 2 (On/Off Status After Power Failure) was set to Always ON, and the load was already physically ON before the outage. The configured startup delay is now correctly respected regardless of the load's previous state.
