Shelly 1 Gen3 WiFi Smart Relay Switch 16A Dry Contacts Home Automation

Description

Product Overview

The Shelly 1 Gen3 is a compact Wi‑Fi enabled relay switch designed for seamless integration into modern smart homes and industrial environments. Built by Shelly Europe, this device delivers a single 16 A channel with dry contacts, allowing it to control a wide range of loads without introducing electrical noise. Its dimensions of 0.63 × 1.65 × 1.46 inches and weight of just 1.41 oz make it easy to install in tight spaces, while the robust plastic housing ensures durability against temperature fluctuations and everyday wear. The relay operates on a wide voltage range of 12 V DC to 24‑48 V DC, giving flexibility for applications such as garage door openers, heating and cooling manifolds, lighting circuits, and more. With a 4.6‑star rating from over 360 customers, the Shelly 1 Gen3 has proven reliability and user satisfaction.

Usage

Designed for both residential and commercial settings, the Shelly 1 Gen3 can be deployed in a variety of scenarios. Homeowners can automate garage doors, control HVAC valves, or create lighting schedules that respond to sunrise and sunset. In small businesses, the relay can manage equipment power cycles, monitor energy consumption, or trigger alarms when certain conditions are met. Because the device connects directly to Wi‑Fi, there is no need for an additional hub, simplifying installation and reducing overall system cost. The companion Shelly Smart Control App provides an intuitive interface for configuring timers, scenes, and remote access, while integration with voice assistants like Alexa, Google Home, and SmartThings enables hands‑free operation. Whether you are a DIY enthusiast or a professional installer, the Shelly 1 Gen3 offers the flexibility to adapt to any automation project.

Why Choose Us

Choosing the Shelly 1 Gen3 means selecting a product backed by a three‑year warranty and dedicated professional support. Shelly Europe has built a reputation for rapid innovation, ensuring that firmware updates continuously improve performance, security, and compatibility. The device’s dry‑contact design guarantees isolation between the control circuit and the load, protecting sensitive equipment from voltage spikes. Its low power consumption allows it to remain active even during power outages, providing reliable operation for critical applications such as security systems or emergency lighting. Moreover, the open‑source nature of Shelly’s firmware encourages community contributions, fostering a vibrant ecosystem of custom integrations and third‑party tools. When you purchase the Shelly 1 Gen3, you receive not only a high‑quality hardware component but also access to a comprehensive knowledge base, step‑by‑step tutorials, and responsive technical assistance.

Key Features

• Easy Wi‑Fi setup with no hub required, saving time and installation cost
• 16 A dry‑contact relay provides reliable switching for lights, motors, and valves
• Broad voltage compatibility (12‑48 V DC) fits many existing control circuits
• Full integration with Alexa, Google Home, SmartThings, and Home Assistant for voice control
• Three‑year warranty and responsive customer support ensure peace of mind

FAQ

Can the Shelly 1 Gen3 be used with a traditional light switch?

Yes, the device can be wired in parallel with an existing mechanical switch, allowing you to keep the original switch functionality while adding remote control via the app or voice assistants.

What is the maximum load the relay can handle?

The relay is rated for up to 16 A continuous current, which is suitable for most residential lighting circuits, small motors, and HVAC control valves.

Is a firmware update required for integration with new smart home platforms?

Shelly regularly releases OTA firmware updates that add compatibility with emerging platforms and improve security. The update process is automated through the Shelly app.

How does the device handle power outages?

During a power loss, the relay retains its last state and will resume operation once power is restored, ensuring that critical devices such as security systems or essential lighting return to their previous condition.

Can multiple Shelly 1 Gen3 units be grouped together?

Yes, you can create groups or scenes within the Shelly app to control several units simultaneously, enabling coordinated actions like turning off all lights in a room or opening multiple garage doors at once.