Shelly 1 GEN3

Product Introduction

The Shelly 1 Gen3 is a compact Wi-Fi smart relay designed to automate and remotely control electrical devices such as lights, appliances, garage doors, and irrigation systems. Installed behind wall switches, sockets, or inside electrical boxes, the device allows users to upgrade traditional circuits into smart home controls without replacing existing switches. 

Using built-in Wi-Fi connectivity, the relay connects directly to your home network without requiring a separate hub. Once connected, users can control devices remotely, create automation schedules, and integrate the relay into broader smart home ecosystems through the Shelly Smart Control platform or compatible automation systems.

The Gen3 version introduces a more powerful processor and expanded memory, improving reliability and enabling advanced automation features such as scripting, webhooks, and deeper smart home integrations.

Key Features

Smart Relay Control
Allows remote switching of lights, appliances, garage doors, and other electrical systems.

Wi-Fi Smart Connectivity
Connects directly to a 2.4 GHz Wi-Fi network without requiring a hub.

Dry Contact Relay Output
Potential-free contacts allow control of a wide range of devices including low-voltage systems and contactors.

Bluetooth Setup and Gateway
Supports Bluetooth for quick pairing and can function as a Bluetooth gateway for other Shelly devices.

Advanced Automation and Scripting
Supports MQTT, webhooks, scripts, and API integration for advanced automation setups.

Compact Retrofit Installation
Designed to fit inside standard wall boxes, behind switches, or inside electrical enclosures.

Smart Home Integration

The Shelly 1 Gen3 integrates with a wide range of smart home ecosystems and automation platforms.

Supported integrations include:

• Shelly Smart Control App
• Amazon Alexa
• Google Home
• Samsung SmartThings
• Home Assistant
• MQTT and REST API automation systems

Once connected, the relay can participate in automation routines such as:

• Turning lights on or off remotely
• Automating garage doors or gates
• Scheduling irrigation systems
• Triggering scenes based on sensors or schedules

Technical Specifications

Product Type: Wi-Fi Smart Relay Switch
Model: Shelly 1 Gen3
Connectivity: Wi-Fi 2.4 GHz + Bluetooth
Power Supply: 110–240V AC / 12V DC / 24–48V DC
Maximum Switching Current: Up to 16A
Relay Type: Potential-free (dry contact)
Processor: ESP-Shelly-C38F chip
Memory: 8 MB flash
Operating Temperature: −20 °C to 40 °C
Installation: Behind switches, sockets, or electrical boxes

What’s in the Box

Shelly 1 Gen3 smart relay
Quick start guide