• Shelly I4 Gen3 controlador 4 entradas WiFi Gen3 S3SN-0024X
  • Diagrama conexión Shelly I4 Gen3 cuatro entradas independientes
  • Especificaciones técnicas Shelly I4 Gen3 S3SN-0024X
  • Shelly I4 Gen3 instalado cuadro eléctrico automatización
1 4

Shelly

Shelly I4 Gen3 — Gen3 4-Input WiFi Controller

Shelly I4 Gen3 — Gen3 4-Input WiFi Controller

€16,26
€16,26

Description

Shelly I4 Gen3 — Gen3 4-Input WiFi Controller

The Shelly I4 Gen3 (model S3SN-0024X) is a 3rd generation 4-independent input controller with integrated WiFi and Bluetooth. It allows connecting up to 4 push buttons, switches, sensors, or other input devices to control any home automation.

  • Model: S3SN-0024X
  • Connectivity: WiFi 802.11 b/g/n (2.4 GHz) + Bluetooth BLE 4.2
  • Power Supply: 110-240V AC
  • Inputs: 4 independent channels (AC)
  • Dimensions: 37 × 42 × 16 mm
  • Weight: 19 g
  • Operating Temperature: -40°C to +60°C
  • Protocols: MQTT, HTTP REST API, WebSockets, Webhooks, mJS Scripting

Use cases

  • Control 4 independent circuits from physical push buttons or switches
  • Integration of presence sensors, door opening sensors, or limit switches
  • DIY automations with Home Assistant and mJS scripting
  • Compact installation in switch boxes or electrical panels

Integrations: Home Assistant (local, no cloud), Amazon Alexa, Google Home, MQTT, HTTP REST API, mJS Scripting. No hub or subscriptions.

Connectivity

  • RF Band: 2400 - 2495 MHz
  • Max RF Power: <20 dBm
  • Wi-Fi Protocol: 802.11 b/g/n (2.4 GHz)
  • Wi-Fi Range: Up to 30 m indoors / 50 m outdoors
  • Bluetooth Protocol: BLE 4.2
  • Bluetooth Range: Up to 10 m indoors / 30 m outdoors

Links of interest

Official Knowledge Base

Shelly I4 Gen3 — Official Documentation

API and technical documentation

This device

All Shelly devices and services

Certifications and regulatory compliance

CE, RoHS — Shelly I4 Gen3 Certifications

View full details

Shelly I4 Gen3 — Smart 4 Input WiFi and Bluetooth Controller

The Shelly I4 Gen3 (model S3SN-0024X) is a 4 independent input controller with WiFi and Bluetooth BLE Gen3 connectivity. It converts any physical button or switch into a smart automation trigger without altering existing wiring. Ideal for integrating buttons, switches, and dry contacts into your home automation system. No proprietary hub or subscriptions required.

Technical Specifications — Shelly I4 Gen3

  • Model: S3SN-0024X
  • Connectivity: WiFi 802.11 b/g/n (2.4 GHz) + Bluetooth BLE 4.2
  • RF Band: 2400 – 2495 MHz
  • Max RF Power: <20 dBm (WiFi) / <4 dBm (BLE)
  • Inputs: 4 independent channels (AC)
  • Input Type: Push button, switch, dry contact
  • Power Supply: 110–240 V AC, 50/60 Hz
  • WiFi Range: Up to 30 m indoors / 50 m outdoors
  • BLE Range: Up to 10 m indoors / 30 m outdoors
  • Dimensions: 37 × 42 × 16 mm
  • Weight: 19 g
  • Protocols: MQTT, HTTP REST API, WebSockets, Webhooks, mJS Scripting
  • Certifications: CE, RoHS

Key Features

  • 4 independent inputs: connect existing push buttons, switches, or dry contacts
  • No output relay: only reads inputs and triggers automations
  • Compatible with Shelly Plus Add-on for temperature and humidity sensors
  • Functions as a Bluetooth gateway for BLU devices
  • mJS Scripting for custom logic without an external server
  • Control other Shelly devices via physical input
  • Automatic OTA updates

Compatible with

  • Home Assistant (MQTT, local control)
  • Amazon Alexa
  • Google Home
  • MQTT, HTTP REST API, WebSockets, mJS Scripting

Use Cases

  • Integrate existing physical buttons as automation triggers
  • Control multiple Shelly devices from a central point
  • Inputs for dry contact sensors (alarms, door sensors)
  • Bluetooth Gateway for Shelly BLU devices
  • Advanced automations in Home Assistant with physical inputs

Official Shelly distribution. Shipping from Spain. Official Shelly warranty.

Shelly I4 Gen3 - Specifications

PHYSICAL
Size (HxWxD): 37x42x16 / 1.46x1.65x0.63
Weight: 19 g / 0.67 oz
Maximum screw terminal torque: 0.4 Nm / 3.5 lbin
Conductor cross section: 0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded and crimp terminals)
Stripped conductor length: 6 to 7 mm / 0.24 to 0.28 in
Mounting: Wall box
Housing material: Plastic
Housing color: Orange
Terminal color: Black
ENVIRONMENTAL
Ambient working temperature: -20°C to 40°C / -5°F to 105°F
Humidity: 30% to 70% RH
Maximum altitude: 2000 m / 6562 ft
ELECTRIC
Power supply: 110 - 240 V⎓, 50/60 Hz
Energy consumption: < 1 W
SENSORS, METERS
Internal temperature sensor: Yeah
RADIO
Wi-Fi
Protocol: 802.11 b/g/n
RF Band: 2401 - 2483 MHz
Maximum RF power: < 20 dBm
Range: Up to 30 m indoors and 50 m outdoors
(Depends on local conditions)
Bluetooth
Protocol: 4.2 with BLE
RF Band: 2400 - 2483.5 MHz
Maximum RF power: < 4 dBm
Range: Up to 10 m indoors and 30 m outdoors
(Depends on local conditions)
MICROCONTROLLER UNIT
CPU: ESP-Shelly-C38F
Flash: 8MB
FIRMWARE CAPABILITIES
Webhooks (URL actions): 20 with 5 URLs per webhook
Scripting: Yeah
MQTT: Yeah