Shelly
Shelly Pro 2
Shelly Pro 2
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Shelly Pro 2 – Professional 2-Channel Smart Switch
The Shelly Pro 2 is a DIN rail–mountable, two-channel smart switch featuring potential-free contacts. Equipped with Gen2 firmware, LAN connectivity, and enhanced reliability, it’s the perfect choice for professional integrators seeking powerful, flexible automation solutions.
It can operate locally on a Wi-Fi or LAN network and be monitored or controlled remotely through cloud-based home automation services. The built-in web interface allows easy setup, monitoring, and configuration from any device.
Key Features
- Two independent relay channels with potential-free contacts
- LAN, Wi-Fi, and Bluetooth connectivity
- Embedded web interface for control and monitoring
- Advanced Gen2 firmware with scripting and scheduling support
- Built-in safety features including overheating protection
Ideal For
- Residential smart automation
- MDUs (apartments, condominiums, hotels)
- Light commercial buildings – offices, shops, cafés, and small retail
- Government or municipal facilities
- Universities and educational campuses
Smart Integrations
- Google Home
- Amazon Alexa
- Samsung SmartThings
Connectivity Options
- Wi-Fi (802.11 b/g/n)
- Ethernet (LAN – RJ45 connector)
- Bluetooth 4.2
Safety & Protection
- Overheating protection
- High-quality insulated housing for electrical safety
Supported Load Types
- Resistive loads (incandescent bulbs, heaters)
- Capacitive loads (electronic equipment, motor start capacitors)
- Inductive loads with RC Snubber (LED drivers, fans, transformers, air-conditioners)
Specifications
| Physical | |
|---|---|
| Size (HxWxD) | 94x19x69 ±0.5 mm / 3.70x0.75x2.71 ±0.02 in |
| Weight | 76 g / 2.68 oz |
| Mounting | DIN rail |
| Material | Plastic |
| Color | Gray |
| Environmental | |
| Operating Temperature | -20°C to 40°C (-5°F to 105°F) |
| Humidity | 30% – 70% RH |
| Max Altitude | 2000 m / 6562 ft |
| Electrical | |
| Power Supply (AC) | 110–240 V |
| Power Consumption | < 3 W |
| Max Switching Voltage | 240 V AC |
| Max Switching Current | 16 A per channel (25 A total) |
| Wireless | |
| Wi-Fi Range | Up to 30 m indoors / 50 m outdoors |
| Bluetooth Range | Up to 10 m indoors / 30 m outdoors |
| Processor | |
| CPU | ESP32-D0WDQ6 |
| Flash Memory | 8 MB |
| Firmware Capabilities | |
| Schedules | Up to 20 |
| Webhooks | 20 with up to 5 URLs each |
| Scripting | Yes |
| MQTT | Yes |
⚠️ Note: Always power off the device before connecting or disconnecting the LAN cable. Range and performance depend on local network conditions.
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A fantastic little unit, I purchased one to test it out. It took a little while to arrive, I would love a second unit for free if you’re willing too, kind regards Jason
