Shelly Pro 4PM combines multi‑channel switching with real‑time power monitoring. Each channel can handle up to 16 A, while the total device capacity is 40 A. Built on the Shelly Gen3 platform, it offers enhanced performance, stronger terminals, and scripting capabilities for custom automation.
It integrates seamlessly with the Shelly Smart Control App, Alexa, Google Home, and Home Assistant, while supporting advanced protocols such as MQTT, Webhooks, HTTPS, UDP, and KNXnet/IP.
Key Features
- 4 channels, 16 A each – control and monitor four independent loads.
- Integrated power metering – precise monitoring per channel.
- DIN rail mountable – fits directly into electrical panels.
- Connectivity – Wi‑Fi, LAN (Ethernet), Bluetooth.
- No hub required – direct control via app or voice assistants.
- Wide compatibility – works with Alexa, Google Home, Home Assistant, and more.
- Advanced integrations – supports MQTT, WebSocket, HTTPS, TLS, KNXnet/IP.
- Scripting support – create custom automation scenes.
- Professional‑grade design – ideal for residential, commercial, and industrial use.
Technical Specifications
- Model: Shelly Pro 4PM
- Channels: 4
- Max Current: 16 A per channel (40 A total)
- Max Power: 3500 W per channel
- Relay Type: Standard (not dry contact)
- Connectivity: Wi-Fi 2.4 GHz, LAN (Ethernet), Bluetooth
- Protocols Supported: MQTT, Webhooks, HTTPS, UDP, TLS, KNXnet/IP
- Control Options: Shelly Smart Control App, Alexa, Google Home, Home Assistant
- Mounting: DIN rail (standard electrical panels)
- Dimensions: 18.5 mm x 89.5 mm x 68 mm
- Processor: ESP Shelly (Gen3, upgraded flash memory)
- Power Metering: Built‑in, per channel monitoring
- Weight: ~150 g
- Safety: Galvanic isolation, improved terminal durability
- Colour: White housing with black terminal accents



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