Introduction
This manual provides comprehensive instructions for the installation, setup, operation, and maintenance of your Shelly 1PM Gen4 Smart Relay Switch. The Shelly 1PM Gen4 is a versatile device designed to enhance your home automation experience with Wi-Fi, Zigbee, and Matter connectivity, alongside precise power monitoring capabilities.
It allows for remote control of appliances and integrates seamlessly into various smart home ecosystems, including Alexa, Google Home, and Apple HomeKit. Its compact design facilitates easy integration behind most standard wall switches and sockets.

Image: The Shelly 1PM Gen4 smart relay switch shown with its product packaging.
Safety Information
Please read this guide carefully before commencing any installation or operation. Failure to follow these instructions may lead to malfunction, electrical hazard, or injury.
- Ensure the power supply is disconnected before installation or maintenance.
- Installation should be performed by a qualified electrician or person with knowledge of electrical systems.
- The device is designed for indoor use only.
- Do not expose the device to moisture or extreme temperatures.
- Adhere to all local electrical codes and regulations.
- The device must be connected to a circuit protected by a circuit breaker.
Package Contents
- 1 x Shelly 1PM Gen4 Smart Relay Switch
- 1 x User Manual
Product Features
- Multi-protocol Connectivity: Supports Wi-Fi, Zigbee, and Matter for broad compatibility.
- Power Metering: Real-time tracking of appliance power consumption.
- Bluetooth Gateway: Enhances smart home connectivity.
- Compact Design: Fits behind most wall switches and sockets.
- High Current Rating: Supports up to 16 A at 240 VAC and 10 A at 30 VDC.
- Internal Temperature Sensor: For device protection and monitoring.
- Smart Schedules and Scenes: Automate device behavior based on time or events.
- Advanced Integration: Supports HTTP, MQTT, Webhooks, and KNX net.
- Virtual Components & Scripting: For advanced customization.

Image: Overview of new features in Gen4, including Matter certification, Zigbee enablement, and powerful ESP-Shelly-C68F chip.

Image: Key features such as 16A support, internal temperature sensor, smart schedules, HTTP/MQTT support, power metering, and scripting.

Image: Visual summary of Shelly 1PM Gen4 features including Shelly chip, energy tracking, remote control, 10-minute installation, and compatibility with Alexa, Google, Siri.
Installation
The Shelly 1PM Gen4 is designed for easy retrofit installation behind existing wall switches or outlets. Ensure power is disconnected before proceeding.
- Disconnect Power: Turn off the main circuit breaker to the area where you will be installing the device. Verify power is off using a voltage tester.
- Wiring: Connect the Shelly 1PM Gen4 according to the wiring diagram provided with your device and local electrical codes. The device typically requires Live (L), Neutral (N), and a switched output (O) to the load, along with a switch input (SW) if using a physical switch.
- Mounting: Carefully place the Shelly 1PM Gen4 module into the wall box behind the switch or outlet, ensuring no wires are pinched.
- Restore Power: Once installed and secured, restore power at the circuit breaker.

Image: An illustration demonstrating how to install the Shelly 1PM Gen4 behind a standard wall outlet.
Note: If you are unsure about any step, consult a qualified electrician.
Setup and Configuration
The Shelly 1PM Gen4 offers flexible setup options via Wi-Fi, Zigbee, or Matter protocols.
Initial Device Inclusion
- Download the Shelly Smart Control App: Available for iOS and Android devices.
- Wi-Fi or Bluetooth Inclusion: Open the Shelly Smart Control App and follow the on-screen instructions to connect the device via Wi-Fi or Bluetooth.
- Zigbee Pairing: To pair with a Zigbee network, press the reset button on the device 5 consecutive times. The device will enter pairing mode.
- Matter Integration: Scan the QR code provided on the device or its packaging using a Matter-compatible app to include it in your Matter ecosystem.

Image: Steps for connecting to the Shelly App via Wi-Fi/Bluetooth, pairing with Zigbee, and scanning a QR code for Matter inclusion.
App Control
The Shelly Smart Control App allows you to:
- Remotely control your Shelly 1PM Gen4.
- Receive notifications for automated events.
- Configure device settings individually.
- Create personalized scenes by combining Shelly devices.
Operation
Once configured, the Shelly 1PM Gen4 can be operated in several ways:
- Manual Control: Use the connected physical wall switch to toggle the load.
- App Control: Use the Shelly Smart Control App from your smartphone or tablet to turn devices on/off.
- Voice Commands: Integrate with smart assistants like Amazon Alexa, Google Home, and Apple HomeKit for voice-activated control.
- Automated Schedules: Set up schedules within the app to automate lighting, appliances, or other connected devices based on time, sunrise/sunset, or other conditions.
- Smart Scenes: Create custom scenes to trigger multiple actions with a single command or event.

Image: The Shelly 1PM Gen4 is compatible with major smart home platforms including Apple HomeKit, Amazon Alexa, Google Home, and Samsung SmartThings.

Image: Illustrations of smart home automation scenarios, such as scheduled lighting, fan control based on temperature, water heater automation, and voice control for kitchen appliances.
Energy Monitoring
The Shelly 1PM Gen4 features integrated power metering, allowing you to track the real-time energy consumption of connected appliances.
- Identify Energy Hogs: Monitor devices like water heaters, kitchen appliances, and washing machines to identify high-consumption items.
- Optimize Usage: Use the data to adjust usage patterns and create smart schedules that run appliances during off-peak hours to reduce electricity costs.
- Historical Data: Access historical consumption data through the Shelly Smart Control App to analyze trends and make informed decisions about energy efficiency.

Image: A visual representation of how automating lighting and other appliances can help control, measure, and reduce electricity costs.
Maintenance
To ensure optimal performance and longevity of your Shelly 1PM Gen4:
- Cleaning: Gently wipe the device with a dry, soft cloth. Do not use harsh chemicals or abrasive cleaners.
- Firmware Updates: Regularly check for and install firmware updates through the Shelly Smart Control App to benefit from new features and security enhancements.
- Environmental Conditions: Ensure the device operates within its specified temperature and humidity ranges.
Troubleshooting
If you encounter issues with your Shelly 1PM Gen4, consider the following:
- No Power: Check the circuit breaker and wiring connections. Ensure the device is receiving power.
- Connectivity Issues:
- Verify your Wi-Fi network is active and the device is within range.
- For Zigbee, ensure your Zigbee hub is operational and the device is properly paired.
- For Matter, confirm your Matter controller is active and the device is included.
- Try restarting your Wi-Fi router or smart home hub.
- Device Unresponsive: Perform a factory reset by pressing the reset button as per the setup instructions (usually 5 consecutive presses for Zigbee pairing, which can also reset some states). Refer to the official Shelly support documentation for specific reset procedures.
- App Issues: Ensure your Shelly Smart Control App is updated to the latest version. Try restarting the app or your smartphone.
For more detailed troubleshooting, visit the Shelly support website.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 3800238070717 |
| Product Dimensions | 0.63 x 1.65 x 1.46 inches |
| Weight | 0.92 ounces |
| Current Rating | 16 Amps |
| Connector Type | Screw |
| Contact Material | Steel |
| Mounting Type | Wall Mount |
| Connectivity | Wi-Fi, Zigbee, Matter, Bluetooth |
| Wi-Fi Range | Up to 100 ft indoors, 160 ft outdoors |
| Zigbee Range | Up to 328 ft indoors, 984 ft outdoors |
| Bluetooth Range | Up to 33 ft indoors, 100 ft outdoors |

Image: Physical dimensions of the Shelly 1PM Gen4 and its wireless connectivity ranges for Zigbee, Wi-Fi, and Bluetooth.
Warranty and Support
Shelly provides professional support and a 3-year device warranty for the Shelly 1PM Gen4.
For further assistance, including knowledge base articles, technical support, and community forums, please visit the official Shelly support website:

Image: Scan this QR code for direct access to Shelly's support resources.





