Shelly 1PM Gen3
£18.99
6 in stock
Overview
Shelly 1PM Gen3 is a Wi-Fi-operated smart relay with integrated power monitoring, designed to control electrical appliances while measuring real-time energy consumption. It is suitable for lighting circuits, sockets, garage doors, heaters, air conditioners, curtains, and other loads up to 16 A in residential and commercial environments.
Built on the Shelly Gen3 ESP processor (ESP-Shelly-C38F) with 8 MB memory, the device provides faster response times, improved reliability, and expanded integration capabilities. With Bluetooth onboarding, local control, and cloud connectivity, Shelly 1PM Gen3 supports flexible automation without requiring a hub.
Key features
- 1-channel Wi-Fi smart relay with integrated power monitoring
- Rated for loads up to 16 A
- Precise real-time power and energy measurement
- Gen3 ESP processor (ESP-Shelly-C38F) with 8 MB memory
- Wi-Fi operated – no hub required
- Bluetooth for fast onboarding and device inclusion
- Supports scripting (mJS), webhooks, MQTT, WebSocket, HTTPS, UDP, TLS
- Acts as a Wi-Fi range extender and Bluetooth gateway
- Enhanced over-temperature and overload protection
- Secure communication with MQTTS, WSS, and custom certificates
- Compatible with Shelly Smart Control app, Home Assistant, Alexa, and other platforms
- Supports KNXnet/IP communication
Product information
Use cases
- Smart Appliance Control
- Remotely control appliances such as heaters, air conditioners, and lighting circuits while monitoring energy usage.
- Energy Monitoring
- Measure real-time and historical power consumption to identify high-energy devices and optimise energy usage.
- Smart Home Automation
- Trigger scenes and automations based on energy consumption, schedules, or external triggers.
Technical specifications
Power
Power Supply (AC)
110–230 V AC ±10%, 50/60 Hz
Power Supply (DC)
24–30 V DC
Device Power Consumption
< 1.2 W
Switching & Measurement
Channels
1
Max Switching Voltage (AC)
240 V
Max Switching Voltage (DC)
30 V
Max Switching Current (AC)
16 A
Max Switching Current (DC)
10 A
Power Measurement
Yes
Safety & Control
Dry Contacts
No
Roller Shutter Mode
No
Device Temperature Protection
Yes
Overload Protection
Yes
Custom Scripts (mJS)
Yes
HTTP/HTTPS Webhooks
Yes
Connectivity
Wi-Fi Protocol
802.11 b/g/n (2.4 GHz)
Wi-Fi RF Band
2401–2483 MHz
Wi-Fi Range
Up to 50 m outdoors, up to 30 m indoors
Bluetooth
Yes
Bluetooth Protocol
4.2
Bluetooth Range
Up to 30 m outdoors, up to 10 m indoors
Environmental
Operating Temperature
−20 °C to 40 °C
Physical
Dimensions
37 × 42 × 16 mm
What’s included
- Shelly 1PM Gen3
- Quick start guide






