Shelly 2PM GEN3 Smart WiFi Relay with Dual Channel Power Monitoring
The Shelly 2PM GEN3 is a compact 2-channel smart switch with integrated power measurement and cover control, perfect for transforming your home or office into a smart, energy-efficient space. This WiFi and Bluetooth-enabled relay allows you to remotely control two independent electrical circuits, monitor real-time power consumption per channel, and automate roller shutters, blinds, and motorized devices from anywhere using your smartphone, tablet, or home automation system. With Matter certification and support for popular voice assistants, the Shelly 2PM GEN3 integrates seamlessly into modern smart home ecosystems without the need for a hub.
Key Features
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Dual-channel control: Independently control two electrical circuits or synchronize them for roller shutter and blind control
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Integrated power metering: Monitor energy consumption separately on each channel with ±1% accuracy to reduce costs and improve efficiency
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Matter certified: Native support for Matter protocol ensures seamless integration with Apple HomeKit, Google Home, Amazon Alexa, and other smart home platforms
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WiFi 802.11 b/g/n and Bluetooth 5.0: Dual connectivity for flexible control and setup, plus WiFi repeater functionality
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Upgraded processor: ESP-Shelly-C38F chip with 8 MB memory delivers improved performance and responsiveness
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Ultra-compact design: Measuring just 37 × 42 × 16 mm and weighing only 30 g, it fits easily behind standard wall switches, sockets, and in tight electrical boxes
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Advanced cover control: Automate roller shutters, Venetian blinds (with slat angle control), curtains, gates, awnings, and other bi-directional motors
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3-year manufacturer warranty: Shelly GEN3 devices come with comprehensive 3-year warranty coverage for peace of mind
Smart Home Automation Made Easy
The Shelly 2PM GEN3 works standalone on your local WiFi network or integrates with cloud-based home automation services. Create custom scenes and schedules using the Shelly Smart Control app (available for iOS and Android), or control via voice commands through Alexa, Google Assistant, or Siri. The device supports advanced automation protocols including MQTT, WebSocket, and KNXnet/IP, making it ideal for integrators and DIY smart home enthusiasts alike.
Real-Time Energy Monitoring
Track voltage, current, active power, and total energy consumption for each of the two independent channels. Use this data to identify energy-hungry appliances, optimize usage patterns, and make informed decisions to reduce your electricity bills. The power metering feature is perfect for monitoring lighting circuits, HVAC systems, kitchen appliances, and more.
Versatile Control Options
Control your devices and motorized blinds in multiple ways:
- Remotely via the Shelly Smart Control app from anywhere with internet access
- Locally through the embedded web interface using any browser
- Voice commands via Amazon Alexa, Google Assistant, or Apple Siri
- Manual wall switches connected to the device inputs
- Automated schedules, timers, and webhooks
- Integration with third-party home automation systems
Perfect for Retrofitting
Designed for easy installation in standard electrical wall boxes, behind existing power sockets, light switches, and other confined spaces. The small form factor and flexible wiring options (supports 0.2 to 2.5 mm² conductor cross sections) make the Shelly 2PM GEN3 ideal for upgrading existing electrical installations without major renovations.
Wide Application Range
- Lighting control in homes, offices, and commercial spaces
- Appliance automation (fans, heaters, refrigerators, washing machines, air conditioners)
- Roller shutter and blind automation with position control
- Venetian blind slat angle control for precise light management
- Gate and garage door control
- Energy monitoring for cost tracking and efficiency optimization
What's in the Box
- 1 × Shelly 2PM GEN3 smart relay module
- Quick installation guide
Full Specifications
| Model |
S3SW-002P16EU |
| Power Supply |
110-240 V AC, 50/60 Hz or 24 V DC ±10% |
| Maximum Load |
2 × 16 A (3680 W per channel, resistive load) |
| Total Current |
16 A (18 A peak) |
| Output Channels |
2 independent relays |
| Energy Measurement |
Yes, 2 channels with ±1% accuracy |
| Measured Parameters |
Voltage, current, active power, total energy |
| WiFi Connectivity |
802.11 b/g/n (2.4 GHz) |
| Bluetooth Connectivity |
BLE 5.0 |
| Matter Support |
Yes, Matter certified |
| Processor |
ESP-Shelly-C38F chip |
| Memory |
8 MB |
| Dimensions (H × W × D) |
37 × 42 × 16 mm (1.46 × 1.65 × 0.63 in) |
| Weight |
30 g (1.06 oz) |
| Conductor Cross Section |
0.2 to 2.5 mm² (24 to 14 AWG) |
| Mounting |
Wall box, behind switches and sockets |
| Operating Temperature |
-20°C to +55°C |
| Housing Material |
Plastic |
| Certifications |
CE, RoHS, Matter |
| Warranty |
3 years |
Specifications are sourced from the manufacturer product page and may be updated.
