The Shelly 2PM Gen4 is a compact, dual-channel smart switch designed for next-level home and office automation. With support for WiFi, Zigbee, Bluetooth, and Matter, it offers unmatched flexibility and compatibility across platforms, making it simple to integrate into your preferred smart ecosystem. Its two independent channels can control appliances, lighting circuits, or motorised covers such as blinds, shutters, and curtains — all while delivering real-time power metering for each channel, so you can track energy usage and optimise efficiency.

This device is small enough to retrofit behind existing switches, yet powerful enough to manage bi-directional AC motors with precision. You can control roller shutters, automate curtain schedules, or adjust the tilt of venetian blind slats for the perfect balance of light and privacy. The Shelly 2PM Gen4 also functions as a WiFi and Zigbee range extender and includes a Bluetooth gateway, expanding your network while connecting your devices. Built-in overheating protection, advanced scripting capabilities, and wide protocol support (including Apple HomeKit via Matter) make it a future-proof choice for both residential and commercial automation projects.

• Dual-channel control on the same phase with independent power metering

• Multiprotocol support: WiFi, Zigbee, Bluetooth, Matter

• Cover and blinds control with precise position and slat angle adjustment

• Compact design for retrofitting behind switches and sockets

• WiFi & Zigbee extender + Bluetooth gateway functionality

• Smart schedules, scenes, scripting, and local/cloud control

• Secure integrations via HTTPS, MQTT, WebSockets, and KNX

Whether you’re automating lighting circuits, cutting energy costs by monitoring appliances, or creating a smart shading system that adapts to time of day and weather, the Shelly 2PM Gen4 brings intelligence, versatility, and reliability into every setup.

Specifications

Power

Power supply:

110-240V ±10% 50/60Hz AC

24V DC ±10%

Max switching voltage AC: 240V

Max switching voltage DC: 30V

Max switching current AC: 10A per channel, 16A total combined (18A total peak)

Max switching current DC: 10A

Power consumption: < 1.4W

External protection:

Tripping characteristic B or C

16A max. rated current,

Min. 6 kA interrupting rating,

Energy limiting class 3

Features

Clean contact relay: No

Power measurement: Yes

Voltage protection / Cutoff: Yes

Current protection / Cutoff: Yes

Max power protection / Cutoff: Yes

Internal-temperature sensor: Yes

Ambient temperature: -20°C to 40°C / -5°F to 105°F

Humidity: 30% to 70% RH

Schedules: 20

Webhooks (URL actions): 20 with 5 URLs per hook

MQTT: Yes

UDP: Yes

Scripting: Yes

Connectivity

Wireless/WiFi Protocol: 802.11 b/g/n/ax (2.4 GHz)

Frequency: 2412-2472 MHz

Wi-Fi Range (depending on local construction):

Up to 50m/160ft outdoors

Up to 30m/100ft indoors

Zigbee Protocol: 802.15.4

Zigbee Repeater: Yes

Zigbee RF Bands: 2400-2483.5 MHz

Zigbee Range (depending on local construction):

Up to 300m outdoors

Up to 100m indoors

Bluetooth Protocol: 5

Bluetooth Range (depending on local construction):

Up to 30m/100ft outdoors

Up to 10m/33ft indoors

Dimensions

(H x W x L): 37 x 42 x 16 ±0.5 mm / 1.46 x 1.65 x 0.63 ±0.02 inch