Shelly 2PM Gen4 - No input available when Switch in Detached mode
Author: ebengCreated Jan 14, 2026Updated Sep 17, 2026
Labelsproblem
What happened?
As the title goes, I have configured one of the Shelly to be in detached mode Switch, where the relais of the output is not affected from the switch ports on the Shelly. In Z2M I don't see these values being read from the Shelly.
What did you expect to happen?
To have 2 more values available in Z2M to configure
Here should be 2 more values available for the Detached switches as INPUTS
How to reproduce it (minimal and precise)
After the Shelly has been configured with all the options, the Shelly has been completely new onboarded in Z2M, to check still if the values now will be seen.
Zigbee2MQTT version
2.7.1
Adapter firmware version
20240602
Adapter
SLZB-MR4U EFR32MG26
Setup
HAOS on a VM with the Z2M PoE adapters
Device database.db entry
No response
Debug log
No response
Notes
No response
Source: Koenkk/zigbee2mqtt