Shelly PRO Modbus Add-on RS485
Description
This is an expansion add-on and not a standalone device. It requires a compatible Shelly PRO device to operate: Shelly PRO EM-50, Shelly PRO 3EM 120 A, Shelly PRO 3EM-400, Shelly PRO 1, or Shelly PRO 2.
The Pro Modbus Add-on RS485 expands Shelly Pro devices into powerful professional automation components. By adding reliable RS485 communication, it enables seamless integration with BMS, EMS, SCADA, and professional automation systems through a widely adopted wired communication standard. Designed for long-distance, noise resistance communication, the Add-on unlocks new possibilities for commercial buildings, large residential installations, and renewable energy systems.
Pro Modbus Add-on with RS485 is compatible with Shelly Pro EM-50, Shelly Pro 3EM, Shelly Pro1 and Shelly Pro 2.The Pro Modbus Add-on attaches directly to the expansion port of the Shelly Pro devices, allows easy integration into building automation platforms, and energy management systems, and professional monitoring solutions.
Main features
- Connect directly to the Shelly Pro EM-50, Shelly Pro 3EM, Shelly Pro1 and Shelly Pro 2 expansion port for clean, compact, and secure installation
- Designed as a simple and intuitive expansion module, enabling fast integration into existing automation and monitoring systems without complex configuration
- Support operation as both a Modbus client and Modbus server, allowing flexible data exchange and system integration
- Support multi-device RS485 networks, allowing multiple devices to communicate on the same bus
- Uses standardized RS485 communication ensuring compatibility with BMS, EMS, SCADA, and professional automation platforms
- Provides reliable and stable communication, suitable or long cable runs and electrically demanding environments commonly found in commercial and building installations
Technical Details
Specification
Specifications
| Quantity | Value |
|---|---|
| Physical | |
| Size (HxWxD): | 94x19x69 mm / 3.70x0.75x2.71 inch |
| Weight: | 48 g / 1.70 oz |
| Screw terminals max torque: | 0.4 Nm / 3.5 lbin |
| Conductor cross section: | 0.3 to 2.0 mm² / 22 to 14 AWG |
| Conductor stripped length: | 6 to 8 mm / 0.24 to 0.31 in |
| Mounting: |
|
| Shell material: | Plastic |
| Shell color: | Black |
| Connectors color: | Black and Green |
| Environmental | |
| Ambient working temperature: | -20 to 40 °C / -5 to 105 °F |
| Humidity: | 30% - 70% RH |
| Max. altitude: | 2000 m / 6562 ft |
| Electrical | |
| Power supply: | 3,3 V⎓, 12 V⎓ |
| Power consumption: | < 1 W |
| Compatible Devices | |
| Models |
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| Other Parameters | |
| Mode: | Half-duplex mode |
| Number of nodes: | Up to 32 nodes |
| Max speed: | 10 Mbps |
| Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
