Open box Smart relay Shelly PRO Dimmer 1PM, 1 channel, energy monitoring, dimming function

What does "open box" mean?

Open-box products are returned products with opened or damaged packaging, but fully checked from a technical point of view and completely functional. They come with the same warranty as new products.

Shelly Pro Dimmer 1PM is a professional DIN-rail-mounted dimmer with one channel and built-in power metering. It controls, dims and monitors the consumption of a wide range of light sources, from halogen to dimmable LED and ferromagnetic transformers, at voltages between 110 and 240V.

Automatic dimming calibration ensures smooth adjustment across the whole brightness range, and night mode lets you set a reduced brightness during the night. The device constantly monitors temperature and automatically switches off the output in the event of overheating, sending a safety notification.

It is suitable for commercial installations where professional dimming with energy monitoring is required, for replacing traditional dimmers in electrical panels, or for integration into complex scenarios alongside other Shelly Pro devices mounted on the same DIN rail.

Practical use cases

• Installed on the lighting circuit of a living room, it lets you adjust light intensity directly from the app or by voice command, for the right atmosphere at every moment of the day.
• Integrated into an automation system, it can gradually lower the brightness in the evening, simulating an artificial sunset that helps you relax before bed.
• Combined with a motion sensor, it turns on the hallway lights at reduced intensity at night, without disturbing anyone with overly bright light.
• Lets you create different scenes (reading, relaxing, entertaining) for the same bulb or chandelier, with no need to install a classic wall dimmer.

Technical specifications

With automatic calibration and active thermal protection, Shelly Pro Dimmer 1PM brings safe, professional dimming to any commercial or residential electrical panel.