Shelly 1PM Gen3
£16.79
A WiFi relay switch with integrated power metering for controlling and monitoring appliances such as lights, sockets or garage doors remotely. Built on Shelly's Gen3 8MB ESP processor with Bluetooth setup, TLS encryption and KNXnet/IP support, alongside scripting, MQTT and webhook integration.
- Integrated power metering with free cloud data storage
- Gen3 8MB ESP-Shelly-C38F processor
- Supports KNXnet/IP communication
- Built-in overload and device temperature protection.
Buy the Shelly 1PM Gen3 online in the UK from ShellyUK — genuine Shelly stock with fast UK delivery.
Control a wide range of home appliances and office equipment (lights, sockets, garage doors, curtains, security systems, radiators, air conditioners, etc.) from anywhere, and measure power consumption with the Shelly 1PM Gen3 WiFi-operated relay switch, with Bluetooth connection.
Shelly Gen3 devices pack an all new 8MB Shelly ESP Processor, allowing for improved responsiveness, better power efficiency and many more new functions. Shelly ESP processor builds further on the Plus-series ESP-32 devices which already pack an extremely fast processor, quicker connectivity, improved integration, and enhanced safety! You can now add devices easily via Bluetooth connection, using the Shelly Cloud App.
- Precise and real-time power metering with free cloud data storage for analysis and energy usage optimisation
- New processor - ESP-Shelly-C38F chip with an increased memory of 8 MB
- Improved durability of terminals
- Wi-Fi range extender & Bluetooth gateway
- Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS and custom certificates
- No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Home Assistant or your preferred automation system
- Supports KNXnet / IP communication
Integrated power metering with free cloud data storage
Gen3 8MB ESP-Shelly-C38F processor

Supports KNXnet/IP communication
Built-in overload and device temperature protection.
Where you'd use it
Retrofit Relay with Usage Logging
Fit the 1PM Gen3 behind an existing switch to add remote control and power metering to a circuit, with free cloud data storage for reviewing usage over time.
KNX System Integration
Use its KNXnet/IP support to bring a Shelly relay into a professionally installed KNX building system rather than running it as a standalone WiFi device.
Local Scripting and Webhooks
Set up a custom mJs script or HTTPS webhook so the relay reacts to a threshold or event directly, without needing a separate automation hub in the loop.
Specification
Connectivity
- HTTP/HTTPS webhooks
- Yes
- Wi-Fi Protocol
- 802.11 b/g/n
- Wi-Fi Radio frequency
- 2401-2483 МHz
- WiFi Range (depending on local construction) • up to
- 50 m outdoors • up to 30 m indoors
- Bluetooth
- Yes
- Bluetooth Protocol
- 4.2
- Bluetooth Range • up to
- 30m/100ft outdoors • up to 10m/33ft indoors
Protection & Safety
- Device temperature protection
- Yes
- Overload protection
- Yes
Physical & Build
- (H x W x L)
- 37x42x16 mm / 1.46x1.65x0.63 in
Environmental
- Operational temperature
- -20°C to + 40°C
Power & Electrical
- Power supply
- AC 110-230V ±10%, 50/60Hz
- Power supply
- DC 24 – 30V
- Max switching voltage
- 240V~, 30V⎓
- Electrical consumption < 1.2W
- Dry contacts
- No
- Roller shutter mode
- No
- Channels
- 1
Smart Features
- Power measurement
- Yes
- Custom scripts(mJs)
- Yes
Other
- Max switching current
- 16A (240V~), 10A (30V⎓)






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