Shelly 1PM Gen4
Overview
Shelly 1PM Gen4 is a compact, single-channel smart relay designed for switching and monitoring electrical loads up to 16A. It supports real-time power measurement, making it suitable for lighting circuits, sockets, and a wide range of household or commercial appliances where energy usage tracking is required.
With multiprotocol support including Wi-Fi, Zigbee, Bluetooth, and Matter, Shelly 1PM Gen4 can operate either hub-free or as part of a larger smart home system. Its small form factor allows for easy retrofitting behind wall switches or sockets, while the upgraded Gen4 processor ensures faster response times and more reliable automation.
Key Features
• Single-channel relay rated up to 16A with integrated power monitoring
• Real-time power and energy measurement with cloud and local access
• Multiprotocol connectivity: Wi-Fi, Zigbee, Bluetooth, Matter
• Matter-certified with Apple Home support via Matter
• Compact design suitable for retrofit installations
• Supports AC and low-voltage DC power supply
• Acts as a Wi-Fi and Zigbee range extender and Bluetooth gateway
• Smart schedules, scenes, and local automation
• Advanced integrations via HTTPS, MQTT, WebSockets, UDP, and KNXnet/IP
• Supports custom scripting for advanced automation logic
Technical Specifications
Power Supply (AC): 110–230 V ±10%, 50/60 Hz
Power Supply (DC): 24–30 V DC
Max Switching Voltage: 240 V AC / 30 V DC
Max Switching Current: 16 A (AC), 10 A (DC)
Power Consumption: < 1 W
Power Measurement: Yes
Dry Contacts: No
Roller Shutter Mode: No
Device Temperature Protection: Yes
Overload Protection: Yes
Operating Temperature: -20 °C to 40 °C
Wi-Fi: 802.11 b/g/n/ax (2.4 GHz), 2412–2472 MHz
Wi-Fi Range: up to 30 m indoors / 50 m outdoors (construction dependent)
Zigbee: 802.15.4
Zigbee Repeater: Yes
Zigbee Range: up to 100 m indoors / 300 m outdoors (construction dependent)
Bluetooth: Version 4.2
Bluetooth Range: up to 10 m indoors / 30 m outdoors (construction dependent)
Dimensions: 37 × 42 × 16 mm
Installation Notes
• Designed for in-wall installation behind switches or sockets
• Suitable for switching resistive and inductive loads within rated limits
• Zigbee operation requires a compatible Zigbee coordinator
• Matter operation requires a Matter-compatible controller
• Installation on mains voltage should be carried out by a qualified electrician
In the Box
• Shelly 1PM Gen4
• User guide