Shelly Pro Dimmer 2PM DIN Rail Wi-Fi Smart Dimmer with Power Metering
The Shelly Pro Dimmer 2PM is a professional-grade DIN-rail mountable two-channel smart dimmer designed for advanced lighting control in homes, offices, and commercial buildings. With integrated Wi-Fi, Ethernet, and Bluetooth connectivity, it delivers seamless control, dimming, and real-time power monitoring for halogen lights, dimmable LEDs, and ferromagnetic transformers rated between 110-240V. Perfect for retrofit installations, the Pro Dimmer 2PM works with your existing wall switches and supports Alexa, Google Assistant, and Home Assistant for smart home integration.
Why You'll Love the Shelly Pro Dimmer 2PM
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Dual-channel dimming: independently control and dim two separate lighting circuits from one compact device
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Built-in power metering: monitor energy consumption per channel in real time to track usage and reduce costs
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Triple connectivity: Wi-Fi, wired Ethernet (LAN), and Bluetooth for flexible installation and reliable performance
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DIN-rail mounting: professional installation inside breaker boxes, ideal for new builds and smart retrofits
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Advanced protection: temperature, overpower, and overvoltage protection ensures safe, reliable operation
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Night mode & automation: schedule lighting scenes, set brightness levels for nighttime, and create weekly routines
Professional Automation for Every Space
The Shelly Pro series is engineered for professional integrators and smart building projects. With DIN-rail compatibility, the Pro Dimmer 2PM installs directly into electrical cabinets alongside circuit breakers, eliminating the need for additional wiring or wall modifications. It's ideal for apartments, condominiums, retail stores, offices, and manufacturing facilities where centralised lighting control and energy monitoring are essential.
Intelligent Dimming Features
Equipped with automatic dimming calibration, the Pro Dimmer 2PM provides smooth, flicker-free dimming across the entire brightness range. Control your lights using single or dual-button wall switches, set minimum and maximum brightness levels, adjust fade rates, and create custom transition times. The device supports both switch and button input modes, allowing flexible control for any installation scenario.
Smart Connectivity & Control
The Shelly Pro Dimmer 2PM operates standalone on your local Wi-Fi network or connects to the Shelly Cloud for remote access from anywhere. With support for HTTP/HTTPS webhooks, MQTT, CoAP, REST API, WebSocket, and TLS, it integrates seamlessly with third-party automation platforms including Home Assistant, OpenHAB, and Domoticz. Control via the Shelly Smart Control app for iOS, Android, or Harmony OS, or use voice commands with Alexa and Google Home.
Built for Safety & Reliability
Enhanced with temperature monitoring every 100ms, the device automatically shuts down outputs if unsafe heat levels or rapid temperature increases are detected, sending instant notifications. Overvoltage and overpower protection safeguards your electrical appliances and prevents circuit damage. All components are made from fire and heat-resistant materials (V-0 rated) for maximum safety.
Compatibility & Load Support
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Dimmable HV LED lamps: up to 200W per output (COSφ=1)
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Dimmable electronic transformers: up to 180W per output
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Non-dimmable HV LED lamps: up to 110W (On/Off mode)
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Incandescent & halogen bulbs: up to 200W per output
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Trailing edge dimming type for smooth performance with most modern LED loads
What's in the Box
- 1 × Shelly Pro Dimmer 2PM device
- Installation guide and documentation
Full Specifications
| Model |
Shelly Pro Dimmer 2PM |
| Number of Channels |
2 independent dimming outputs |
| Max Output Power |
200W per channel (COSφ=1) |
| Input Voltage |
110-240V AC, 50/60Hz |
| Switch/Button Inputs |
4 inputs (SW1, SW2, SW3, SW4) |
| Dimming Type |
Trailing edge |
| Mounting |
DIN rail mountable |
| Connectivity |
Wi-Fi 802.11 b/g/n (2.4GHz), Ethernet (LAN), Bluetooth |
| Wi-Fi Frequency |
2400 - 2495 MHz |
| Wi-Fi Range |
Up to 50m outdoors, up to 30m indoors (building dependent) |
| Power Metering |
Yes, per channel |
| Protection Features |
Temperature, overpower, overvoltage |
| Temperature Monitoring |
Every 100ms |
| Dimensions (L × W × H) |
94 × 19 × 69mm |
| Weight |
75g |
| Material |
Fire and heat resistant (V-0 rated) |
| Voice Assistant Support |
Amazon Alexa, Google Assistant |
| Platform Compatibility |
Home Assistant, SmartThings, OpenHAB, Domoticz |
| Protocols Supported |
HTTP/HTTPS, MQTT, CoAP, REST API, WebSocket, TLS, UDP |
| App Control |
Shelly Smart Control (iOS, Android, Harmony OS) |
| Cloud Service |
Shelly Cloud (optional) |
| Warranty |
5 years (Shelly Pro series) |
| Certification |
CE, compliant with 2014/35/EU, 2014/30/EU, 2011/65/EU |
Specifications are sourced from the manufacturer product page and may be updated.
