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Tongou TOWSMR1-40A-A in Home Assistant

Relays & modules · Zigbee · Single-phase multifunction RCBO (DIN Module)

Zigbee2MQTT Custom quirk shared in an issue 1 open report

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

Facts about this device

Brand
Tongou
Model
TOWSMR1-40A-A
Device type
Relays & modules
Radio
Zigbee
Power
Mains powered
Reports itself as
_TZE284_s5vuaadg
Same device as
Tongou TOWSMR1
Also sold as
Tongou TOWSMR1-20A-AC, Tongou TOWSMR1-40A-AC
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

Known problems and fixes

Requests for ZHA support

  • support requested The TOWSMR1-40 Zigbee RCBO from TUYA is not supported in ZHA. Adding a quirk would allow Home Assistant to recognize and control the device's overload protection and circuit breaker functions. since June 9, 2026 · zha-device-handlers #5074

ZHA quirks for this device

Custom quirk shared in an issue Recommended quirk

Shared in the issue tracker; of the custom quirks for this device, the one most people agreed with and that adds the most.

Adds: Energy Leakage current Last event Start real-time monitoring Refresh measurements Over voltage protection Under voltage protection Over current protection Over power protection Temperature protection +11

Source: zha-device-handlers · issue #5074 · by @IlBrielli · October 4, 2026
Signature: _TZE284_432zhuwe / TS0601

3 more quirks for this device

All quirks in the ZHA quirk database →

Alternatives

The same job from other makers – devices of the same type and radio that work with Home Assistant too.

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.

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