Shelly Plus 2PM Gen3 2 Channel Smart Switch with Power Metering

The SHELLY-PLUS-2PM-GEN3 represents a sophisticated dual-channel smart relay with advanced energy monitoring capabilities, designed for professional building automation and smart home installations. This third-generation device builds upon Shelly's proven technology with enhanced communication protocols and robust safety features, making it suitable for both residential and commercial applications. With support for KNXnet/IP integration alongside standard Wi-Fi and Bluetooth connectivity, it offers unparalleled flexibility for modern smart infrastructure projects.

Engineered for reliability in demanding environments, the device features comprehensive electrical protection systems and precise power measurement across both channels. Its compact form factor allows for discreet installation in various enclosures while maintaining full functionality. The inclusion of scripting capabilities and extensive automation options provides installers with powerful tools for creating customised control scenarios that meet specific project requirements.

Technical Specifications

• Physical Dimensions: 37×42×16 mm / 1.46×1.65×0.63 inches
• Weight: 30 g / 1.06 ounces
• Screw Terminals: Maximum torque 0.4 Nm / 3.5 lb-in, conductor cross-section 0.2 to 2.5 mm² / 24 to 14 AWG
• Conductor Stripped Length: 6 to 7 mm / 0.24 to 0.28 inches
• Mounting Options: Wall console or in-wall box
• Shell Material: Black plastic housing
• Environmental Operating Range: -20°C to 40°C / -5°F to 105°F, 30% to 70% relative humidity, maximum altitude 2000 m / 6562 ft
• Power Supply: 110-240 V~ / 24 V⎓ ±10%
• Power Consumption: < 1.4 W
• Output Circuit Ratings: Maximum switching voltage 240 V~ / 30 V⎓, maximum switching current 16A @ 240 V~ / 10A @ 30 V⎓

Key Features

• KNXnet/IP Communication: Seamless integration with KNX building automation systems
• Dual-Channel Control: Independent operation of two separate circuits
• Advanced Monitoring: Integrated voltmeter, ammeter, and power measurement capabilities
• Comprehensive Protection: Overheating, overvoltage, overcurrent, and overpower protection systems
• Safety Functions: Obstacle detection and safety switch in cover mode
• Wireless Connectivity: Dual-band Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 with extended range
• Programming Flexibility: Scripting support, MQTT protocol, and webhook capabilities
• Security: Built-in encryption for secure communications

Use Cases

The device excels in commercial lighting control systems where precise energy monitoring and KNX integration are essential. It serves perfectly in HVAC control applications, managing fan coil units and other climate control equipment with its dual-channel capability. For residential installations, it provides robust control for high-power appliances, electric heating systems, and motorised window treatments. The energy monitoring features make it ideal for submetering applications in multi-tenant buildings and commercial spaces requiring detailed power consumption analysis.

Industrial applications benefit from its safety features and robust construction, particularly in machine control and process automation scenarios. The scripting engine enables custom logic implementation for complex automation sequences, while the Bluetooth gateway functionality supports local device management and configuration without network infrastructure.