1. Introduction
The Shelly Plus i4 UL is a WiFi and Bluetooth-enabled smart controller designed to enhance your home automation system. It features four digital inputs, allowing you to control other Shelly devices and activate various scenes with multiple actions per button. This device is UL-certified, ensuring compliance with safety standards. It can also function as a WiFi repeater to extend your network coverage.
Product Overview
The Shelly Plus i4 UL is a compact module designed for installation behind existing wall switches or in electrical boxes. It provides four independent digital inputs, enabling flexible control over your smart home devices. Its small size allows for discreet integration into your electrical infrastructure.
2. Setup
What's in the Box
- 1x Shelly Plus i4 UL device
- User Manual
Wiring and Installation
The Shelly Plus i4 UL is designed to be installed behind a multi-button switch or within a standard electrical box. Ensure power is disconnected before beginning installation. Connect the device according to the provided wiring diagram, paying close attention to the Live (L), Neutral (N), and switch input (SW1-SW4) terminals. Professional installation by a qualified electrician is recommended.
Initial Power-Up and App Connection
After successful installation and power restoration, the device will create a WiFi access point. Download the Shelly Smart Control App from your device's app store. Follow the in-app instructions to add the Shelly Plus i4 UL to your home network. The device supports both WiFi and Bluetooth for initial setup and control.
3. Operating Instructions
Basic Operation and Multi-Click Functionality
The Shelly Plus i4 UL allows you to trigger up to three different actions per button press on a connected wall switch. This enables versatile control over various Shelly devices or scenes within your home automation system.
- Single Click: Activates a predefined action (e.g., turn off appliances).
- Double Click: Activates a second predefined action (e.g., close blinds).
- Long Click: Activates a third predefined action (e.g., turn on/off lights in a specific area).
Remote Control and Smart Schedules
Control your Shelly Plus i4 UL and associated devices remotely using the Shelly Smart Control App. You can configure devices, manage settings, and create personalized scenes. The app also allows you to set custom schedules based on your daily routine or environmental factors like sunrise/sunset for automated lighting control.
Video: Smart Home with Shelly
Video 1: An overview of smart home possibilities with Shelly devices. This video demonstrates how Shelly products can simplify daily routines, enhance security, and save energy through smart lighting and automated controls.
Video: Shelly Plus i4 Features
Video 2: A demonstration of the Shelly Plus i4's capabilities. This video highlights how the Shelly Plus i4 can be installed behind multi-button switches to activate various smart home scenes, such as controlling kitchen lights, roller shutters, bathroom fans, and garage doors with simple clicks.
4. Maintenance
Cleaning
To clean the device, ensure power is disconnected. Use a dry, soft cloth. Avoid using liquid cleaners or solvents, as these can damage the device.
Firmware Updates
Regularly check for firmware updates through the Shelly Smart Control App. Updates provide new features, performance improvements, and security enhancements. Follow the in-app instructions for updating the device firmware.
5. Troubleshooting
Common Issues and Solutions
- Device not connecting to WiFi: Ensure the device is within range of your WiFi network. Verify network credentials. Try restarting your router and the Shelly device.
- Device not responding to switch inputs: Check wiring connections to the switch inputs (SW1-SW4). Ensure the switch type is correctly configured in the Shelly app.
- App not detecting device: Ensure Bluetooth is enabled on your smartphone during initial setup. Confirm the device is in pairing mode (usually indicated by a specific LED pattern).
- Unexpected behavior: Perform a factory reset (refer to the device's specific reset procedure, often involving a button press sequence). Reconfigure the device after a reset.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | 3800235265697 |
| Product Dimensions | 1.65 x 1.5 x 0.7 inches (42 x 38 x 18 mm) |
| Item Weight | 0.635 ounces (18 grams) |
| Connectivity | WiFi, Bluetooth |
| Inputs | 4 Digital Inputs |
| Power Supply | AC 110-240V |
| Special Feature | Lightweight, WiFi Repeater Functionality |
| Compatible Devices | Air Purifier, Fan, Home Theater, Smartphone, Tablet (via Shelly ecosystem) |
7. Warranty
The Shelly Plus i4 UL comes with a 3-year manufacturer's warranty. For warranty claims or details, please refer to the official Shelly website or contact customer support.
8. Support
For further assistance, technical support, or to explore more about Shelly products, please use the following resources:
- Knowledge Base & Guidelines: Access detailed product specifications and guides.
- Technical Support: Contact Shelly's professional support team.
- Community Forums: Engage with other Shelly users on Reddit and Facebook Support Groups.
- Shelly Academy: Find video tutorials and webinars for in-depth learning.
Visit the official Shelly support page: https://support.shelly.cloud/en/support/home
