Shelly - 2x Wifi, Zigbee, Matter switch module Shelly 1 GEN4

Shelly 1 Gen4 – Multi-Protocol Dry Contact Smart Module

The Shelly 1 Gen4 is a compact, multiprotocol smart relay with a dry contact output ideal for automating lights, doors, shutters, or electrical appliances. Designed to fit behind switches or sockets, it supports Wi-Fi, Zigbee, Bluetooth, and Matter, ensuring wide compatibility and local or cloud-based control without the need for a hub.

Main Features

• Multi-protocol connectivity: Wi-Fi, Zigbee, Matter, and Bluetooth
• Dry contact relay: Control both low and high-voltage devices
• Hub-free operation: Works directly via Shelly Smart Control app
• Smart automations: Local or cloud scenes, schedules, and actions
• Overheat protection: Internal temperature sensor
• Advanced integrations: Supports scripts, HTTPS, MQTTS, WebSockets, HTTP API, KNXnet/IP
• Voice control: Compatible with Alexa, Google Home, and Apple HomeKit (via Matter)

Technical Specifications

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

Wireless Range

• Wi-Fi (802.11 b/g/n/ax): Up to 30 m indoors / 50 m outdoors
• Bluetooth 5.0: Up to 10 m indoors / 30 m outdoors
• Zigbee 3.0: Up to 100 m indoors / 300 m outdoors

Smart Home Compatibility

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

Use Cases

• Lighting: Automate LED, halogen, or incandescent lamps
• Garage doors: Open/close control with sensor feedback
• Ventilation: Trigger fans via humidity or motion
• Heating: Control towel warmers or electric radiators up to 16 A
• Office: Automate commercial lighting or equipment
• Industrial: Remotely control pumps, motors, and more

Package Contents

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