Shelly Plus I4 DC WiFi 4 Input Module

Shelly Plus I4 DC – Low Voltage WiFi Input Module for Smart Scene Automation

The Shelly Plus I4 DC is a compact, low-voltage digital input module designed to expand smart home automation capabilities. With four digital inputs and multi-click support for up to 12 unique triggers, this device allows users to activate Shelly scenes, automate systems, and receive alerts via the Shelly Cloud app for iOS and Android.

Running on 5–24VDC (power supply not included), the Plus I4 DC is compatible with HTTP and MQTT-controlled devices and integrates seamlessly with other Shelly products. Ideal for installations where high-voltage AC is not permitted, this module empowers custom automation with simple contact closures or low-voltage switches.

Key Features

• 4 low-voltage digital inputs (supports contact closures and switches)
• Multi-click functionality enables up to 12 distinct triggers
• Compatible with HTTP, MQTT, and Shelly automation platforms
• App-based control and notifications via Shelly Cloud (iOS/Android)
• Built-in web server for configuration and local access
• Compact design for embedded or concealed installations
• Operates exclusively on low-voltage DC power (5–24VDC)
• Not compatible with high-voltage AC systems

Specifications – Shelly Plus I4 DC

General

• Device Type: WiFi input module
• Inputs: 4 digital (switch/contact)
• Power Supply: 5–24VDC (not included)
• AC Support: Not supported
• Connectivity: WiFi 802.11 b/g/n (2.4GHz)
• Operating Temperature: –20°C to 40°C
• Use Case: Indoor only
• Dimensions: 42 × 38 × 17 mm

Functionality

• Trigger Count: Up to 12 via multi-click
• Supported Protocols: HTTP, MQTT
• Scene Control: Shelly Cloud app + other Shelly devices
• Configuration: Via built-in web interface