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What You'll Need
- Shelly Plus 1 PM
- Switched circuit (up to 16A)
- Smartphone with Shelly app
- 2.4GHz Wi-Fi network
- Wire connectors
- Screwdriver
- Voltage tester
Step-by-Step Setup
- Turn off power: Disconnect power at the circuit breaker. Verify with a voltage tester.
- Plan the installation: The Plus 1 PM fits behind wall switches, in junction boxes, or in electrical panels (with appropriate enclosure).
- Connect the wires:
- L → Line (hot from panel)
- N → Neutral
- O → Output to controlled device
- SW → Connection from wall switch (optional)
- Secure connections: Use appropriate wire nuts or terminal blocks. Ensure all connections are tight.
- Restore power: Turn on the circuit breaker. The Shelly LED will indicate power.
- Add to Shelly app: Open the app and tap "+" or let it auto-discover the new device.
- Join your Wi-Fi: Configure the Shelly to connect to your home network.
- Configure settings: Set button type, power-on behavior, and power monitoring preferences.
- View power data: Check real-time wattage and energy consumption in the app.
Key Features
- 16A relay capacity
- Built-in power monitoring
- Wi-Fi and Bluetooth connectivity
- ESP32 processor for advanced scripting
- Local control (works without cloud)
- Home Assistant, MQTT, REST API support
- Works with Alexa and Google Assistant
- Energy consumption tracking
Troubleshooting
- Power reading shows 0: Ensure current flows through the relay (it must be switched on). Check that the load is connected to the output terminal.
- Inaccurate power readings: Calibrate in device settings if readings seem off. Very low wattage devices may not read accurately.
- Bluetooth pairing fails: Ensure phone Bluetooth is enabled. Stay within 3 feet during initial pairing. Try resetting the Shelly.
- Switch input not working: Verify SW terminal connection. Select correct button type (momentary, toggle, edge) in settings.
- Device gets warm: Normal for high loads. Ensure load doesn't exceed 16A. Provide adequate ventilation.