Shelly Pro 4PM smart switch with 4 channels, WiFi, LAN, DIN rail, power meter, app control, compatible with Amazon Alexa, Google Assistant and Home Assistant

The Shelly Pro 4PM is the four-channel version of the Pro series, designed for installations where a single DIN rail module needs to take over control and monitoring of four separate circuits. Each of the four channels has its own dry contact rated up to 16A and its own energy metering, allowing consumption to be reported individually for each zone or piece of equipment controlled, without needing four separate devices in the panel.

Simultaneous connectivity via Wi-Fi, wired Ethernet and Bluetooth ensures a stable link to the local network, while the flexible AC 110-240V or DC 12-24V power supply allows integration into both conventional installations and low-voltage systems, such as those found in light industrial buildings. Overcurrent, overvoltage and overheating protections work independently on each channel, isolating any problems at circuit level.

It is the right device for a flat with several lighting zones, a small commercial space with four separate circuits or a house with extensive automations, where a single Pro 4PM replaces four individual relays and significantly simplifies the wiring of the electrical panel. It works locally, with no mandatory cloud, and integrates with Home Assistant, Google Home or other platforms via an open API and MQTT.

Practical use cases

• Mounted in the electrical panel of a flat, it controls four lighting circuits separately (for example living room, kitchen, hallway and outdoor) from the app, by voice command or automatically.
• Installed on the circuits of an electric water heater and a recirculation pump, it allows remote on/off control, scheduling of operating hours and tracking of each appliance's consumption separately.
• In a small commercial space, it measures the consumption of four separate circuits individually and helps identify the areas or equipment that consume the most.
• Used to control outdoor lighting on one of the channels, it can be scheduled to switch on automatically at sunset and switch off in the morning.

Technical specifications

The Shelly Pro 4PM is the efficient solution for automating and monitoring four distinct circuits from a single point, with no compromise on reliability or connectivity.