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Develco SMRZB-143 in Home Assistant

Energy · Zigbee · Smart cable

Zigbee2MQTT Quirk proposed, not merged yet

Zigbee device – see the note above on what ZHA needs for it.

We have a detailed page on this device with compatibility ratings and prices. Details and compatibility

Brand: Develco
Model: SMRZB-143
Device type: Energy
Radio: Zigbee
Power: Mains powered
Reports itself as: SMRZB-143
Zigbee2MQTT: Device page on zigbee2mqtt.io

How the device gets into Home Assistant

official ZHA – with a Zigbee coordinator and the ZHA integration; for all its functions it needs a custom quirk, see above. Integration
add-on Zigbee2MQTT – Zigbee2MQTT runs as an add-on and passes the device on to Home Assistant over MQTT. Integration · Source

ZHA quirks for this device

Quirk proposed, not merged yet Recommended quirk

Proposed to ZHA and waiting for review – the maintainers check it before it becomes part of Home Assistant.

Adds: On after (min) Off after (min) Device temperature Return to state

Source: zha-device-handlers · pull request #4871 · by @marcintyminski · March 27, 2026
Signature: Develco Products A/S / SMRZB-143

1 more quirk for this device

Quirk proposed, not merged yet frient A/S / SMRZB-143 zha-device-handlers · pull request #4871 · by @marcintyminski · March 27, 2026

The quirk is not part of ZHA yet. You can use it as a custom quirk until it is:

Tell ZHA where custom quirks are kept – in configuration.yaml:
```
zha:
  custom_quirks_path: /config/custom_zha_quirks/
```
Create that folder and save the quirk as a .py file in it.
Restart Home Assistant. If the device was paired before, reconfigure it or remove and pair it again so the quirk is applied.
Check it worked: the device page shows the quirk under Zigbee info.

A custom quirk has not been reviewed by the ZHA maintainers. Delete the file once the quirk is part of a Home Assistant release – otherwise the old copy takes precedence.

All quirks in the ZHA quirk database →

Sources: Zigbee2MQTT, ZHA quirks, Z-Wave JS, the Matter certification database, Shelly, ESPHome, Tasmota, Tuya Local and the issue trackers on GitHub. Reports are assigned to a device by the identifiers they contain; the sentences come from the integration pages, where a language model writes them from the titles.

Facts about this device

How the device gets into Home Assistant

ZHA quirks for this device