RELAY UNIT SHELLY 1 GEN4

Shelly 1 Gen4 is a smart 16A relay with a potential-free contact. It supports WiFi, Bluetooth, and Zigbee connectivity, making it a versatile solution for home automation.

Purpose and Installation

The Shelly 1 Gen4 is designed to be installed behind switches, outlets, or lighting fixtures. It enables easy control and automation of lighting, garage doors, irrigation systems, fans, and other devices. Its compact design allows installation in most wall and ceiling boxes.

Features

• Matter certification: Easy integration with your favorite smart home system via the Matter protocol.
• Multi-protocol chip: Simultaneously supports 2.4 GHz WiFi and Zigbee connectivity across different platforms.
• Bluetooth: Enables direct communication between Shelly relays/light dimmers and battery-powered devices.
• Local operation: All core functions operate fully locally, even if the network connection is lost.
• Wide compatibility: Compatible with over 200 systems, including Google Home, Apple HomeKit, Amazon Alexa, Home Assistant, and Samsung SmartThings.
• Advanced features: Supports MQTT, HTTP, and WebSocket protocols, as well as TLS encryption.

Technical Specifications and Applications

The Shelly 1 Gen4 operates on voltages of 12V DC, 24–48V DC, or 110–240V AC. The potential-free contact enables control of garage doors, SG-Ready heat pumps, and irrigation systems. A single switching connection is programmable for various applications:

• Lighting control
• Bathroom fan control
• Floor heating control (in combination with Shelly Plus Add-On and DS18B20 temperature sensor)
• Garage door control (in combination with Shelly Plus Add-On and magnetic contact)
• Irrigation system control
• SG-Ready heat pump control
• Smart doorbell solution

Local Operation – No Gateway Required

Shelly WiFi devices feature a built-in web server that ensures continuous operation even without an internet connection. The device remembers sunrise and sunset times as well as schedules during network outages. Relays and light dimmers function as standard impulse relays, allowing them to be used with traditional switches without internet. While internet is not essential, an active network connection unlocks additional features.

Technical documentation: https://kb.shelly.cloud/knowledge-base/shelly-1-gen4

This product description is an automated translation of the original Finnish description.