{"product_id":"shelly-pro-em-50-din-rail-50a-energy-monitor","title":"Shelly Pro EM-50 DIN Rail 50A Energy Monitor","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eShelly Pro EM-50 DIN Rail 50A Energy Monitor\u003c\/strong\u003e is a two-channel, single-phase energy meter designed for DIN rail mounting. It combines accurate power and energy monitoring with an integrated dry-contact relay, making it ideal for managing and automating loads in modern PV and smart-home installations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-channel single-phase metering\u003c\/strong\u003e – measures two independent circuits on the same phase, ideal for tracking PV generation and household consumption or two key loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated relay with dry contacts\u003c\/strong\u003e – built-in relay output for controlling a contactor or external device based on measured power or automation logic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLAN, Wi-Fi and Bluetooth connectivity\u003c\/strong\u003e – multiple communication options for secure, reliable integration into networks and smart-home systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-time monitoring\u003c\/strong\u003e – reports instantaneous voltage, current, active power and apparent power per channel, as well as accumulated energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-quadrant measurement\u003c\/strong\u003e – measures import and export power, reactive power and energy, with optical LED pulse indication of energy usage; ideal for photovoltaic applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy Class B\u003c\/strong\u003e – complies with IEC 62053-21 Class B accuracy for reliable metering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal data storage\u003c\/strong\u003e – stores data in non-volatile memory for up to 60 days in 1-minute intervals, even without cloud connectivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo hub required\u003c\/strong\u003e – can be controlled directly via the Shelly Smart Control app and works with common home automation platforms and voice assistants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMonitoring \u0026amp; Communication\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured parameters:\u003c\/strong\u003e voltage, current, active power, apparent power and accumulated energy per channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Ethernet (LAN), Wi-Fi and Bluetooth for flexible integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart-home integration:\u003c\/strong\u003e compatible with Alexa, Home Assistant and other systems via open protocols.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocols \u0026amp; APIs:\u003c\/strong\u003e supports scripting, web hooks, MQTT, WebSocket, HTTPS, UDP, TLS, custom certificates and Modbus TCP.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHardware \u0026amp; Installation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail mountable for neat installation in consumer units and distribution boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 50A per measurement channel (with appropriate current transformers or direct measurement, as specified by the manufacturer).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay output:\u003c\/strong\u003e dry-contact relay suitable for driving contactors to switch larger loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePV-ready design:\u003c\/strong\u003e suitable for monitoring PV systems, including import\/export and key loads like EV chargers or immersion heaters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitoring household consumption and PV generation on two separate circuits.\u003c\/li\u003e\n\u003cli\u003eControlling large loads (via contactors) such as immersion heaters, EV chargers or heat pumps based on measured power or tariffs.\u003c\/li\u003e\n\u003cli\u003eIntegrating detailed energy monitoring into smart-home platforms without needing a separate hub.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shelly","offers":[{"title":"Default Title","offer_id":62931591070045,"sku":"EM-50","price":120.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ShellyPro50AEnergyMeter-DINrail.jpg?v=1766078517","url":"https:\/\/qualityheating.co.uk\/products\/shelly-pro-em-50-din-rail-50a-energy-monitor","provider":"AIZO Quality Heating","version":"1.0","type":"link"}