Shelly 2PM Gen4
Overview
Shelly 2PM Gen4 is a compact, dual-channel smart relay designed for advanced lighting, appliance, and motorised cover automation. Supporting Wi-Fi, Zigbee, Bluetooth, and Matter, it offers maximum flexibility for both hub-free setups and fully integrated smart home systems.
The device can independently control two loads on the same phase or operate in cover (roller shutter) mode, enabling precise control of blinds, shutters, curtains, and venetian slats. Integrated power monitoring on each channel allows real-time energy tracking, helping optimise efficiency and reduce running costs.
Despite its powerful feature set, Shelly 2PM Gen4 is small enough to retrofit behind existing wall switches or sockets. It also acts as a Wi-Fi and Zigbee range extender and a Bluetooth gateway, strengthening your network while keeping installations clean and minimal. With built-in safety protections, scripting support, and Matter certification (including Apple Home via Matter), it is a future-ready solution for residential and commercial automation.
Key Features
• Dual-channel relay on the same phase with independent power monitoring
• Supports cover (roller shutter) mode for blinds, shutters, and curtains
• Precise position control and venetian blind slat angle adjustment
• Multiprotocol connectivity: Wi-Fi, Zigbee, Bluetooth, Matter
• Compact retrofit design for installation behind switches and sockets
• Wi-Fi and Zigbee extender with integrated Bluetooth gateway
• Smart schedules, scenes, local and cloud automation
• Supports HTTPS, MQTT, WebSockets, UDP, KNXnet/IP, and scripting
• Matter-certified with Apple Home support via Matter
Technical Specifications
Power Supply (AC): 110–240 V ±10%, 50/60 Hz
Power Supply (DC): 24 V DC ±10%
Max Switching Voltage: 240 V AC / 30 V DC
Max Switching Current (AC): 10 A per channel, 16 A total combined (18 A peak)
Max Switching Current (DC): 10 A
Power Consumption: < 1.4 W
Power Measurement: Yes (per channel)
Clean Contact Relay: No
Internal Temperature Sensor: Yes
Voltage Protection: Yes
Current Protection: Yes
Max Power Protection: Yes
Operating Temperature: -20 °C to 40 °C
Humidity: 30–70% RH
Schedules: 20
Webhooks: 20 (up to 5 URLs per hook)
MQTT: Yes
UDP: Yes
Scripting: Yes
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 5
Bluetooth Range: up to 10 m indoors / 30 m outdoors (construction dependent)
Dimensions: 37 × 42 × 16 mm (±0.5 mm)
Installation Notes
• Designed for in-wall installation behind switches and sockets
• Supports both standard dual-channel switching and cover (roller shutter) mode
• Zigbee operation requires a compatible Zigbee hub/coordinator
• Matter operation requires a Matter-compatible controller
• Installation on mains voltage should be performed by a qualified electrician
In the Box
• Shelly 2PM Gen4
• User guide