#30637·zigbee2mqtt

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.

Image

What did you expect to happen?

To have 2 more values available in Z2M to configure

Image

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