Shelly Pro EM-50 Energy Meter with Contactor Control

The Shelly Pro EM-50 represents a sophisticated single-phase energy monitoring solution designed for professional electrical installations. This microprocessor-managed device enables comprehensive energy measurement and remote control capabilities through multiple connectivity options. Engineered for DIN rail mounting within consumer units, it integrates seamlessly into both residential and commercial electrical systems while providing detailed insights into power consumption patterns. Offering robust monitoring capabilities, this device tracks essential electrical parameters including active, reactive, and apparent power alongside voltage and current measurements. The unit supports remote operation through Wi-Fi and Ethernet connections, allowing users to monitor energy usage via web interfaces or mobile applications from any location with internet connectivity. Its professional-grade construction ensures reliable performance in diverse environments from domestic properties to commercial establishments.

Technical Specifications

• Electrical Input: 230V AC ±15%, 50/60Hz
• Maximum Current: 50A continuous monitoring
• Power Measurement: Active, reactive, and apparent power monitoring
• Communication Interfaces: Wi-Fi 2.4GHz, Ethernet (10/100Mbps), Bluetooth for initial configuration
• Mounting: Standard DIN rail (35mm)
• Operating Temperature: -20°C to +60°C
• Safety Standards: Compliant with relevant UK and European electrical safety regulations

Key Features

• Real-time Monitoring: Continuous tracking of voltage, current, power factor, and energy consumption
• Dual Connectivity: Simultaneous Wi-Fi and Ethernet operation for flexible installation options
• Local Storage: Internal memory for historical energy data recording
• API Integration: Comprehensive application programming interface for custom automation solutions
• Cloud Compatibility: Optional integration with Shelly Cloud services for remote access
• Firmware Updates: Over-the-air update capability through web interface or mobile application

Use Cases

The Shelly Pro EM-50 finds application across multiple scenarios including residential energy management systems where homeowners require detailed insight into electricity consumption patterns. Commercial establishments benefit from its monitoring capabilities for identifying energy-intensive equipment and optimising operational costs. Industrial facilities utilise the device for sub-metering applications and load management, while property managers employ multiple units for tenant billing purposes based on actual consumption data. The device also serves educational and research institutions requiring accurate power measurement for experimental setups and energy efficiency studies.