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Ubisys C4 Schalter

Ubisys C4 in Home Assistant

Buttons & remotes · Zigbee · Control unit C4

Zigbee2MQTT Quirk included in ZHA 1 open report

This device is known to both Zigbee integrations: Zigbee2MQTT has a definition for it, and ZHA has a quirk that adapts it.

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

Facts about this device

Brand
Ubisys
Model
C4
Device type
Buttons & remotes
Radio
Zigbee
Reports itself as
C4 (5504)
Zigbee2MQTT
Device page on zigbee2mqtt.io

Where to buy

ubisys C4 Bedieneinheit mit Zigbee und Bluetooth, konfigurierbar ohne Gateway, verknüpfbar mit anderen ubisys Komponenten zur Steuerung von Leuchten und Jalousien

ubisys

ubisys C4 Bedieneinheit mit Zigbee und Bluetooth, konfigurierbar ohne Gateway, verknüpfbar mit anderen ubisys Komponenten zur Steuerung von Leuchten und Jalousien

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Offers for ubisys C4 Bedieneinheit mit Zigbee und Bluetooth, konfigurierbar ohne Gateway, verknüpfbar mit anderen ubisys Komponenten zur Steuerung von Leuchten und Jalousien, best price first, then sorted by total price
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ubisys Bedieneinheit C4 (Series 2): Zigbee + Bluetooth | Zigbee Direct Device | Ohne Gateway konfigurierbar | Verknüpfbar mit anderen ubisys Komponenten, um z. B. Leuchten und Jalousien zu steuern. Price out of date Nur noch 12 auf Lager Check current price at Amazon.de

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How the device gets into Home Assistant

  • official ZHA – with a Zigbee coordinator and the ZHA integration; the quirk the device needs is part of ZHA. 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 Ubisys C4 smart switch does not expose sensors to track its current state or trigger events in Home Assistant. since August 20, 2026 · zha-device-handlers #5267

ZHA quirks for this device

Quirk included in ZHA Recommended quirk

Part of ZHA – Home Assistant uses it on its own, nothing to install.

Adds: Input mode 1 Input mode 2 Input mode 3 Input mode 4

Source: zha-device-handlers · since zha-quirks 2.2.2
Signature: ubisys / C4 (5504)

2 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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