Shelly 1 Mini Gen4 8A Multiprotocol Dry Contact Smart Relay

Description

Shelly 1 Mini Gen4 – 8A Multiprotocol Dry Contact Smart Relay

Add smart control to lights, appliances, contactors and low-voltage equipment with the Shelly 1 Mini Gen4. This ultra-compact 8A dry-contact smart relay combines Wi-Fi 6, Zigbee, Bluetooth and Matter connectivity in a remarkably small module that can fit behind existing wall switches, sockets and other electrical installations.

With its potential-free (dry) relay contacts, the Shelly 1 Mini Gen4 can switch a load independently from the voltage used to power the device. This makes it considerably more versatile than a conventional smart switch and ideal for applications ranging from lighting and small appliances to garage doors, irrigation systems, doorbells, contactors and low-voltage control circuits.

Best of all, the Shelly 1 Mini Gen4 can operate locally without depending on a cloud service, making it an excellent choice for advanced smart homes using Home Assistant, Matter, Zigbee or Shelly’s own ecosystem.

Key Features & Benefits

🔌 Ultra-Compact 8A Smart Relay

Measuring only 29 × 34 × 16 mm, the Shelly 1 Mini Gen4 is designed for installations where space is limited. Its compact form factor makes it ideal for retrofitting behind wall switches, sockets and other electrical equipment.

The relay supports loads up to:

• 8A at 240V AC
• 5A at 30V DC
• Up to 2000W AC
• Up to 150W DC

Always observe the applicable load and installation requirements for the specific application.

⚡ Potential-Free Dry Contact

The dry-contact relay is one of the Shelly 1 Mini Gen4’s most useful features.

Because the relay contacts are electrically isolated from the device’s power supply, the Shelly can be used to control a separate circuit or input. This makes it suitable for applications such as:

• Lighting circuits
• Small appliances
• Garage and gate controllers
• Irrigation systems
• Doorbells
• Contactors
• Heating controls
• Low-voltage equipment
• Access-control inputs
• Automation and industrial control circuits

This flexibility allows the Shelly 1 Mini Gen4 to be used as much more than a conventional smart light switch.

🌐 Four Connectivity Options

The Shelly 1 Mini Gen4 gives you exceptional flexibility when designing your smart home.

It supports:

• Wi-Fi 6 – Direct connection to your wireless network
• Zigbee 3.0 – Integrate it into an existing Zigbee network
• Bluetooth 5.0 – Bluetooth connectivity and device gateway functionality
• Matter – Easy integration with compatible Matter ecosystems

Use the protocol that best suits your installation instead of being locked into a single smart-home ecosystem.

Good to know: The Shelly 1 Mini Gen4 ships in Matter mode by default. Switching to Zigbee mode (via a simple button sequence) disables Matter.  Wi-Fi and Bluetooth stay active either way.

🏠 Matter Smart Home Compatibility

Matter support makes the Shelly 1 Mini Gen4 an excellent choice for modern multi-platform smart homes.

It can integrate with compatible platforms including:

• Apple Home
• Google Home
• Amazon Alexa
• Samsung SmartThings
• Home Assistant
• Other Matter-compatible controllers

Matter makes it easier to combine devices from different manufacturers into a single smart-home environment.

🏡 Excellent for Home Assistant

For advanced users, the Shelly 1 Mini Gen4 offers extensive integration possibilities.

Use it with Home Assistant for local automations, dashboards, scripts and sophisticated smart-home routines. Its support for multiple communication protocols also gives you flexibility when designing a local automation network.

The device additionally supports advanced technologies such as MQTT, webhooks, scripting, WebSockets and HTTPS, making it suitable for both simple smart-home installations and more advanced automation projects.

📱 No Dedicated Hub Required for Wi-Fi

For Wi-Fi installations, the Shelly 1 Mini Gen4 connects directly to your 2.4 GHz Wi-Fi network, allowing you to control it without purchasing a dedicated Shelly hub.

Control the relay using the Shelly Smart Control platform, local web interface, compatible voice assistants or your preferred smart-home platform.

🔄 Zigbee Router & Bluetooth Gateway

When used with the appropriate configuration, the Shelly 1 Mini Gen4 can also contribute to your smart-home network by providing Zigbee repeater/router and Bluetooth gateway functionality.

This makes it more than simply a relay — it can also form part of your wider connected-home infrastructure.

🧠 Powerful Gen4 Hardware

Shelly’s Gen4 platform provides a significant hardware upgrade, featuring the ESP-Shelly-C68F processor and 8 MB flash memory.

This provides the processing capability required for advanced automation, scripting and multiprotocol operation while keeping the device extremely compact.

🛡️ Built-In Temperature Protection

An integrated temperature sensor monitors the device and provides overheating protection, helping protect the relay during demanding installations.

For additional electrical protection, the appropriate external circuit protection should always be provided according to the installation requirements.

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Perfect For

The Shelly 1 Mini Gen4 is particularly useful when you need smart switching in a small space.

Ideal applications include:

• 💡 Smart lighting
• 🔌 Small appliances
• 🚪 Garage and gate automation
• 💧 Irrigation controllers
• 🔔 Doorbells
• 🔥 Heating and thermostat control
• ⚙️ Contactor control
• 🏠 Home Assistant installations
• 🧠 Matter smart homes
• 📡 Zigbee smart-home networks
• 🔋 Low-voltage automation
• 🏢 Commercial and building automation

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Why Choose the Shelly 1 Mini Gen4?

The Shelly 1 Mini Gen4 combines an unusually small physical footprint with the flexibility of a dry-contact relay and four smart-home communication protocols.

Whether you simply want to automate a light or you’re building a sophisticated local automation system, the Shelly 1 Mini Gen4 gives you the flexibility to choose Wi-Fi, Zigbee, Matter or Bluetooth without having to replace the hardware later.

Its dry-contact output also makes it particularly valuable for applications where the device being controlled operates at a different voltage from the Shelly itself.

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Technical Specifications

Installation Note

The Shelly 1 Mini Gen4 requires a neutral connection for its power supply. Electrical installation should be carried out by a suitably qualified person in accordance with local regulations.

External circuit protection is recommended, with a maximum protection rating of 10A as specified by the manufacturer.