Shelly i4 Gen3 scene controller Wi‑Fi/Bluetooth

885248-1
€19.50
On the road, at your place 26. 9. 2025
Shelly i4 Gen3: smart scene controller with 4 inputs, Multi‑click up to 16 actions, Wi‑Fi/Bluetooth, MQTT and KNX. Easy installation without a hub, scenes and automation.

Shelly i4 Gen3 scene controller Wi‑Fi/Bluetooth

885248-1
Shelly i4 Gen3: smart scene controller with 4 inputs, Multi‑click up to 16 actions, Wi‑Fi/Bluetooth, MQTT and KNX. Easy installation without a hub, scenes and automation.
€19.50
On the road, at your place 26. 9. 2025
Shelly i4 Gen3 is a compact scene controller for smart homes with 4 digital inputs, enabling up to 16 actions thanks to Multi‑click. It works without a hub, connects via Wi‑Fi/Bluetooth, supports MQTT and KNXnet/IP, and easily fits behind an existing wall switch for quick installation and convenient control of scenes and devices.

Create and trigger your own scenes with a single tap. Shelly i4 Gen3 handles precise control of four independent inputs and, thanks to the Multi‑click feature, lets you assign up to 16 different actions (single/double/triple click and hold for each input). The modern ESP‑Shelly‑C38F processor with 8 MB flash ensures lightning‑fast response and reliable operation.

The device works without a central hub — configure everything in the Shelly Smart Control app over Wi‑Fi, and quickly add new devices via Bluetooth. For advanced integrations, MQTT, WebSocket, HTTPS, UDP, and TLS encryption with custom certificates are available, including KNXnet/IP for building automation.

  • Easy hidden installation — compact dimensions to fit behind most wall switches.
  • Scenes within reach — with a single press, turn off lights, lower blinds, or activate “Good night”.
  • Stable connection — 2.4 GHz Wi‑Fi with a range of up to 50 m in open space.
  • Safety and reliability — reinforced terminals, encrypted communication, internal temperature sensor.

Specifications

Manufacturer
Shelly
Model
i4 Gen3
Dimensions
37 × 42 × 17 mm
Weight
18 g
Max terminal tightening torque
0.4 Nm
Conductor cross‑section
0.2 to 2.5 mm² (solid, stranded, ferruled)
Stripping length
6 to 7 mm
Mounting
Wall bracket / flush mounting box
Enclosure material
Plastic
Color
Orange
Operating temperature
−20 °C to 40 °C
Operating humidity
30% to 70% RH
Power supply
110–240 V~ 50/60 Hz
Self‑consumption
< 1 W
Internal temperature sensor
Yes
Wi‑Fi protocol
IEEE 802.11 b/g/n (2.4 GHz)
Wi‑Fi radio frequency
2401–2483 MHz
Max Wi‑Fi transmit power
< 20 dBm
Wi‑Fi range
Up to 50 m in open space, up to 30 m indoors (depending on conditions)
Bluetooth version
4.2
Bluetooth radio frequency
2400–2483.5 MHz
Max Bluetooth transmit power
< 4 dBm
Bluetooth range
Up to 30 m in open space, up to 10 m indoors (depending on conditions)
CPU
ESP‑Shelly‑C38F
Flash memory
8 MB
Webhooks (URL sharing)
20, up to 5 URLs per webhook
Scripting
Yes
MQTT
Yes
Encryption
Yes (TLS, custom certificates)
Supported protocols
MQTT, WebSocket, HTTPS, UDP, TLS
Integrations
KNXnet/IP, Shelly Smart Control app
Number of digital inputs
4
Multi‑click function
Up to 16 actions (4 actions for each of the 4 inputs)
Hub
Not required
€19.50