1. Introduction
The Shelly Plus 2PM is a versatile one-phase, two-channel smart relay designed for home automation. It supports up to 10A per channel and a total current of 16A (18A peak). This device features two integrated power meters for each channel, allowing for precise energy consumption monitoring, and includes an overpower protection function. Its cover (roller) control functionality enables automation and monitoring of roller shutters, blinds, curtains, gates, and other bi-directional AC motors.
The Shelly Plus 2PM connects directly to your Wi-Fi network, requiring no additional hub. It also supports Bluetooth for quick and easy device addition via the Shelly Cloud App.
2. Setup and Installation
2.1 Physical Overview and Dimensions
The Shelly Plus 2PM is a compact device, measuring approximately 37x42x16 mm (1.46x1.65x0.63 inches), making it suitable for installation within standard wall consoles.
Figure 1: Shelly Plus 2PM demonstrating its compact size.
2.2 Wiring Diagram
The device is designed for installation in a wall console. Refer to the following diagram for proper wiring. Ensure all connections are secure and comply with local electrical codes.
Figure 2: Shelly Plus 2PM wiring diagram. Note the N (Neutral), O1 (Output 1), L (Live), O2 (Output 2), S1 (Switch 1), S2 (Switch 2) terminals, and power input options (AC 110-240V, DC 24V).
Screw terminals have a maximum torque of 0.4 Nm (3.5 lbin). Use conductors with a cross-section of 0.5 to 1.5 mm² (20 to 16 AWG) and strip them 5 to 6 mm (0.20 to 0.24 in).
Figure 3: Shelly Plus 2PM installed in a wall console.
2.3 Initial Connection (Wi-Fi & Bluetooth)
The Shelly Plus 2PM connects to your Wi-Fi network without the need for a separate hub. For initial setup and adding devices, you can use a Bluetooth connection via the Shelly Cloud App. The Shelly Cloud App is available for both iOS and Android devices.
3. Operating Instructions
3.1 General Functionality
The Shelly Plus 2PM acts as a 2-channel smart relay, allowing you to automate lights and monitor their real-time power consumption. It also provides comprehensive cover (roller) control for various bi-directional AC motors.
Figure 4: Shelly Plus 2PM offering dual possibilities: 2-channel smart relay and cover control.
3.2 Cover (Roller) Control
The device excels in automating and adjusting the position of roller shutters, blinds, garage doors, awnings, gates, curtains, and other two-directional motors. You can set precise intermediate positions using percentages.
Video 1: Demonstration of automated curtain control using Shelly Plus 2PM.
3.3 Scheduling
Utilize the 'Schedules' function within the Shelly Cloud App to create automated routines. For example, you can program your curtains to open or close at specific times daily.
Figure 5: Example of scheduled curtain operation.
3.4 Scripting and Webhooks
The Shelly Plus 2PM supports custom scripts (mJs) and webhooks (URL actions) for advanced customization and enhanced device functionality. This allows for complex automation scenarios based on specific needs or external triggers.
Figure 6: Scripting functionality example: automatically closing an awning during strong winds.
3.5 Power Metering
The device includes two integrated precise power meters, enabling you to monitor and analyze the energy consumption for each connected channel separately. This data helps in managing consumption and reducing electricity costs.
Figure 7: Monitoring power consumption via the Shelly Cloud App.
3.6 Smart Home Integration
The Shelly Plus 2PM is highly compatible with various smart home platforms and voice assistants, including Amazon Alexa and Google Home. It can be grouped with other Shelly devices and third-party home automation systems to create integrated smart home scenarios.
Figure 8: Voice control compatibility with popular smart assistants.
Figure 9: Integrating Shelly Plus 2PM with other smart home devices, such as a door sensor.
Figure 10: Supported smart home platforms and protocols.
4. Maintenance
The Shelly Plus 2PM is designed for minimal maintenance. Ensure the device is kept within its specified environmental conditions (temperature and humidity). Regularly check for firmware updates through the Shelly Cloud App to ensure optimal performance and security.
For cleaning, ensure the device is powered off and disconnected from any electrical source. Use a dry, soft cloth to wipe the exterior. Do not use liquid cleaners or abrasive materials.
5. Troubleshooting
If you encounter issues with your Shelly Plus 2PM, consider the following:
- Device unresponsive: Check the power supply to ensure it is within the specified voltage range (110-240 VAC or 24 VDC).
- Wi-Fi connectivity issues: Ensure your Wi-Fi network is active and the device is within range. Try restarting your Wi-Fi router.
- Bluetooth pairing issues: Make sure Bluetooth is enabled on your smartphone and the Shelly Cloud App is up to date.
- Automation not working: Verify your schedules, scripts, and webhook configurations in the Shelly Cloud App. Ensure all linked devices (e.g., sensors) are functioning correctly.
- Overpower protection triggered: If the device shuts off unexpectedly, it might be due to an overload. Check the current draw of connected appliances to ensure they do not exceed 10A per channel or 16A total (18A peak).
For persistent issues, consult the Shelly support resources or contact customer service.
6. Specifications
| Category | Parameter | Value |
|---|---|---|
| Physical | Size (HxWxD) | 37x42x16 ±0.5 mm |
| Mounting | Wall console | |
| Screw terminals max torque | 0.4 Nm / 3.5 lbin | |
| Conductor cross section | 0.5 to 1.5 mm² / 20 to 16 AWG | |
| Conductor stripped length | 5 to 6 mm / 0.20 to 0.24 in | |
| Environmental | Ambient temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH | |
| Max. altitude | 2000 m / 6562 ft | |
| Electrical | Power supply | 110 - 240 VAC / 24 VDC ±10% |
| Power consumption | < 1.4 W | |
| Output Circuits Ratings | Max switching voltage AC | 240 V |
| Max switching voltage DC | 30 V | |
| Max switching current AC | 10 A (per channel), 16 A (total), 18 A (total peak) | |
| Max switching current DC | 10 A | |
| Sensors, Meters | Internal-temperature sensor | Yes |
| Voltmeter (AC) | Yes | |
| Ammeter (AC) | Yes | |
| Radio | RF band | 2400 - 2495 MHz |
| Max. RF power | <20 dBm | |
| Wi-Fi protocol | 802.11 b/g/n | |
| Wi-Fi Range | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) | |
| Bluetooth Protocol | 4.2 | |
| Bluetooth Range | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) | |
| MCU | CPU | ESP32-U4WDH |
| Flash | 4 MB | |
| Firmware Capabilities | Schedules | 20 |
| Webhooks (URL actions) | 20 with 5 URLs per hook | |
| Scripting | Yes | |
| MQTT | Yes |
7. User Tips
- Maximize Energy Savings: Utilize the power metering feature to identify energy-hungry appliances and optimize their usage through schedules or automation rules.
- Seamless Integration: The Shelly Plus 2PM is compatible with a wide range of smart home platforms like Amazon Alexa, Google Home, SmartThings, and Home Assistant. Explore these integrations to create a unified smart home experience.
- Advanced Automation: Leverage scripting capabilities for complex scenarios, such as automatically closing awnings based on weather forecasts or integrating with door/window sensors to control blinds.
- Remote Control: Control your devices from anywhere using the Shelly Cloud App, ensuring your home is always as you desire.
- Overload Protection: The built-in overload protection helps prevent damage to connected appliances and the device itself. Always ensure connected loads are within the specified current limits.
8. Warranty and Support
For any technical assistance, troubleshooting, or warranty inquiries, please contact the Shelly Official Store or refer to the official Shelly support website. Keep your purchase receipt as proof of purchase for warranty claims.
