Shelly Pro 3EM RC – Smart Three-Phase Energy Meter with Rogowski CoilsThe Shelly Pro 3EM RC is a professional smart energy meter suitable for industrial use, capable of connecting three Rogowski coils (contactless current measurement). It is ideal for detailed monitoring of energy consumption in small and medium-sized enterprises, whether for entire buildings or individual systems.Main features:Maximum measurement range: up to 2000 A per phase4-quadrant measurement: precise tracking of active, reactive, import, and export energyDIN rail mountable designMultiple wiring options: suitable for both single-phase and three-phase systemsRogowski coil current sensing: contactless, quick, and safe installationPhase sequence error detection: optionally enabled, detects A-B-C sequence errors based on zero crossingsPer-channel calibration: precision adjustment possible with at least 500 W loadLoad threshold detection: no energy is added to statistics below 30 VA, and the user receives a warningOptical pulse indication: real-time energy usage is visibly trackableReal-time clock (RTC): stores precise timestamps even when the internet connection is lostData logging: stores up to 60 days of consumption data on the deviceExternal contactor control: automated or script-controlled load switching is possible using the Shelly 3EM Switch Add-onAccuracy class: Class B (according to IEC 62053-21)Communication and integration:Local and remote access: operates standalone on Wi-Fi networks but can also be accessed and controlled remotely via the internetBuilt-in web interface: configuration, monitoring, and control directly from a browserMQTT(s) support: easy integration into BMS and HMI systemsApplications:Monitoring power consumption in industrial facilitiesEnergy efficiency analysis for SME building operationsContactless measurement without dismantling existing systemsAutomated energy-based control systems
