Shelly 1 Gen3 (2 Pack)

Description

The Shelly 1 Gen3 is a small-form-factor smart switch designed to automate lights, garage doors, or irrigation systems. It’s the third-generation evolution of the classic “Shelly 1,” which became a cult favorite in the smart home community because of its versatility and dry contacts (potential-free relay).

Get 2 at a discount

Think of it as the “brain” you hide behind your existing wall switch to make it smart without actually replacing the physical switch itself.

Key Upgrades in Gen3

The “Gen3” label isn’t just marketing; it brings significant hardware improvements over the previous Plus and Classic versions:

New Processor: It features the Shelly chip (ESP-Shelly-C38F) with 8MB of flash memory. This makes it faster, more stable, and ready for future firmware updates.

Matter Support: One of the biggest selling points is that it’s designed to be compatible with Matter, the new universal smart home standard. This means it can play nicely with Apple Home, Google Home, and Amazon Alexa simultaneously.

Virtual Components: It allows for “virtual” buttons and actions, letting you trigger complex scenes or control other devices that aren’t even physically wired to the relay.

Technical Specifications

If you’re planning an install, here is what you need to know:

Feature	Specification
Relay Type	1-Channel, Dry Contacts (Potential-free)
Max Load	16A
Power Supply	110-240V AC / 12V DC / 24-48V DC
Connectivity	Wi-Fi, Bluetooth, and Range Extender capability
Terminals	Improved screw terminals for easier wiring

Why People Choose the Shelly 1

The main reason people pick this specific model over others is the Dry Contact feature.

Most smart switches pass the input voltage (e.g., 230V) directly to the output. The Shelly 1 Gen3 keeps the power that runs the device separate from the circuit it’s switching.

This allows you to:

• Switch low voltage: Control a 12V garage door motor while powering the Shelly with 230V AC.
• Safety: Create a “clean” contact closure for sensitive electronics.
• Flexibility: Use it as a simple contact sensor or pulse creator.

Note: Whilst the Shelly configuration is mostly DIY, any electrical work must be done by a registered electrical contractor and we recommend Straton Electrical.