Shelly PRO 3 Relay Switches
The Shelly Pro 3 is a single-phase, 3-channel smart relay designed for DIN rail mounting, featuring potential-free (dry) contacts and supporting loads up to 16A per channel. Enhanced with Gen2 firmware, it offers LAN & Wi-Fi connectivity, providing flexible integration options for various automation scenarios. Its embedded web interface allows for local control, while compatibility with cloud services and protocols like MQTT and KNXnet/IP ensures seamless integration into existing systems. Ideal for automating lighting circuits and controlling electrical appliances or integrating into complex automation projects and systems.
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5 Year Warranty
Description
Shelly Pro 3 is a DIN rail mountable 3-channel smart switch with potential-free contacts, capable of switching 3 completely independent circuits. Enhanced with all the gen2Â firmware flexibility and LAN connectivity, it provides professional integrators with many more options for end customer solutions. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services.
Shelly Pro 3 can be accessed, controlled and monitored remotely from any place where the User has internet connectivity, as long as the device is connected to a Wi-Fi router and the Internet.
Shelly Pro 3 has an embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings.
Key Features
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LAN, Wi-Fi, and Bluetooth connection
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3 outputs, 16A each. Total device maximum of 48A
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Dry contacts
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Overpower and overvoltage protection of the load.
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Easy control through the Shelly app, various protocols, and platforms, as well as voice assistants
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Supports control of 3 differnt phases
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Supports KNXnet / IP communication
Installation Video
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Basic Wiring Diagrams
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Compatibility
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Works with Home Assistant
Works with Homey
Works with SmartThings
Works with Google Home
Works with Amazon Alexa
Not Compatible
Specifications
| Physical | |
| Size (HxWxD): | 96x53x59 ±0.5 mm / 3.78x2.01x2.32 ±0.02 in |
| Weight: | |
| Mounting: | DIN rail |
| Screw terminals max torque: | 0.4 Nm / 4.43 lbin |
| Conductor cross section: | 0.5 to 2.5 mm? / 20 to 14 AWG |
| Conductor stripped length: | 6 to 7 mm / 0.24 to 0.28 in |
| Shell material: | Plastic |
| Color: | Black |
| Environmental | |
| Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Electrical | |
| Power supply voltage AC: | 110 - 240 V |
| Power supply voltage DC: | N/A |
| Power consumption: | < 3 W |
| Neutral not needed: | No |
| Output circuits ratings | |
| Max switching voltage AC: | 240 V |
| Max switching voltage DC: | 30 V |
| Max switching current AC: | 16 A per channel, 48 A total |
| Max switching current DC: | 16 A per channel, 48 A total |
| Sensors, meters | |
| Internal-temperature sensor: | Yes |
| Radio | |
| RF band: | 24010- 2495 MHz |
| Max. RF power: | <20 dBm |
| Wi-Fi protocol: | 802.11 b/g/n |
| Wi-Fi Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors(Depends on local conditions) |
| Bluetooth Protocol: | 4.2 |
| Bluetooth Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors(Depends on local conditions) |
| MCU | |
| CPU: | ESP32-D0WDQ6 |
| Flash: | 8 MB |
| Firmware capabilities | |
| Schedules: | 20 |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | Yes |
| MQTT: | Yes |
| CoAP: | No |
