Shelly - 4x Wifi, Zigbee, Matter switch module Shelly 1 GEN4

Shelly 1 Gen4 – Multi-Protocol Dry Contact Smart Switch

The Shelly 1 Gen4 is a versatile smart relay module designed for home and commercial automation. Thanks to its dry contact output and multi-protocol support (Wi-Fi, Zigbee, Bluetooth, Matter), it can control lights, doors, shutters, or appliances—making it ideal for a wide range of installations. It fits behind standard wall switches or sockets and offers full compatibility with major voice assistants and smart home platforms.

Main Features

• Multi-protocol connectivity: Wi-Fi 802.11 b/g/n/ax, Zigbee 3.0, Bluetooth 5.0, Matter
• Dry contact relay: Potential-free contact supports low- and high-voltage control
• Max current: 16 A at 240 V~ / 10 A at 30 V⎓
• Built-in repeater: Wi-Fi & Zigbee repeater and Bluetooth gateway
• Hub-free control: Manage via Shelly Smart Control app
• Overheat protection: Integrated temperature sensor for safe operation
• Advanced automation: Supports scripting, WebSockets, HTTPS, MQTT, HTTP API, KNXnet/IP

Technical Specifications

• Model: Shelly 1 Gen4
• Power supply: 110–240 V~ / 24–48 V⎓ / 12 V⎓
• Power consumption: < 1 W
• Max switching current: 16 A (240 V~) / 10 A (30 V⎓)
• Dimensions: 37 × 42 × 16 mm
• Weight: 26 g
• CPU: ESP-Shelly-C68F, 8 MB flash
• Operating temp: -20 °C to +40 °C
• Humidity: 30%–70% RH
• Altitude: up to 2000 m

Radio Range

• Wi-Fi: Up to 30 m indoors / 50 m outdoors
• Bluetooth: Up to 10 m indoors / 30 m outdoors
• Zigbee: Up to 100 m indoors / 300 m outdoors

Compatibility

• Voice assistants: Alexa, Google Home, Apple HomeKit (via Matter)
• Smart platforms: Home Assistant, Jeedom, SmartThings, KNXnet/IP, Zigbee2MQTT

Use Cases

• Lighting: Control and schedule LED, incandescent, or halogen lights
• Garage doors: Open/close control with status feedback
• Ventilation: Automate fans based on occupancy or humidity
• Heating: Control towel warmers or radiators up to 16 A
• Commercial: Automate office lighting or equipment
• Industrial: Control motors, pumps, or other devices

Package Contents

• 4 × Shelly 1 Gen4 modules
• Installation guide
• Mounting accessories