{"product_id":"shelly-3em-pro-v2","title":"Shelly 3EM Pro V2","description":"\u003ch2\u003e\u003cstrong\u003eShelly Pro 3EM V2 – Professional Three-Phase Energy Meter\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eMonitor energy consumption and production with precision using the \u003cstrong\u003eShelly Pro 3EM V2\u003c\/strong\u003e. This DIN rail-mounted energy meter delivers real-time measurements across three-phase or single-phase electrical systems, making it ideal for residential, commercial, agricultural, and multi-dwelling installations.\u003c\/p\u003e\n\u003cp\u003eThe Shelly Pro 3EM V2 reports accumulated energy together with instantaneous voltage, current, active power, apparent power, and power factor for each phase. Measurements are stored locally in non-volatile memory for at least 45 days at one-minute intervals, allowing historical data to be retrieved even when an internet connection is unavailable.\u003c\/p\u003e\n\u003cp\u003eWith Ethernet, Wi-Fi, Bluetooth, an embedded web interface, and support for MQTT, HTTP, WebSocket, scripting, and webhooks, the device integrates easily into professional energy-management and automation systems. All inbound connections support TLS.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMatter-ready:\u003c\/strong\u003e \u003ca href=\"https:\/\/shelly.link\/enable_matter\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eLearn how to enable Matter\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"padding: 16px; margin: 20px 0; background-color: #fff4e5; border-left: 4px solid #f5a623;\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e The Shelly Pro 3EM V2 does not contain a built-in relay. External contactor control requires a compatible Shelly Pro 3EM Switch Add-on.\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-phase and single-phase monitoring\u003c\/strong\u003e for flexible installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-quadrant measurement\u003c\/strong\u003e for imported and exported energy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotovoltaic-ready\u003c\/strong\u003e for monitoring solar generation and consumption\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN rail mounting\u003c\/strong\u003e for professional electrical-panel installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-contact current measurement\u003c\/strong\u003e using compatible current transformers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-time monitoring\u003c\/strong\u003e of voltage, current, active power, apparent power, energy, and power factor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAt least 45 days of local data storage\u003c\/strong\u003e at one-minute resolution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in real-time clock\u003c\/strong\u003e to maintain accurate timestamps during internet interruptions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase-sequence error detection\u003c\/strong\u003e when enabled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-channel calibration\u003c\/strong\u003e with a minimum load of 500 W per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable no-load threshold\u003c\/strong\u003e with a default threshold of 30 VA per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy Class B\u003c\/strong\u003e for active-energy measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical pulse indication\u003c\/strong\u003e of measured energy flow\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCSV and JSON data export\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLocal and cloud operation\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eInternal temperature monitoring\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional external contactor control\u003c\/strong\u003e through the Shelly Pro 3EM Switch Add-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eReliable Local Data Storage\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eMeasurement data is recorded directly on the device for at least 45 days, using one-minute intervals. Its built-in real-time clock helps preserve accurate timestamps if access to an SNTP server or the internet is interrupted.\u003c\/p\u003e\n\u003cp\u003eRecorded power-quality values can be exported in CSV format, while device data can also be retrieved in JSON format through RPC.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFlexible Connectivity and Integration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEthernet through an RJ45 connection\u003c\/li\u003e\n\u003cli\u003e2.4 GHz Wi-Fi\u003c\/li\u003e\n\u003cli\u003eBluetooth 4.2\u003c\/li\u003e\n\u003cli\u003eMQTT support\u003c\/li\u003e\n\u003cli\u003eHTTP and WebSocket communication\u003c\/li\u003e\n\u003cli\u003eTLS support for inbound connections\u003c\/li\u003e\n\u003cli\u003eEmbedded web interface\u003c\/li\u003e\n\u003cli\u003eCustom scripting\u003c\/li\u003e\n\u003cli\u003eUp to 20 webhooks with five URLs per hook\u003c\/li\u003e\n\u003cli\u003eShelly Cloud compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach connectivity option can be enabled or disabled according to the requirements of the installation. The device can operate independently on a local network or communicate with compatible cloud and building-automation services.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIdeal Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResidential energy monitoring\u003c\/li\u003e\n\u003cli\u003eApartments, condominiums, hotels, and other multi-dwelling properties\u003c\/li\u003e\n\u003cli\u003eSmall offices, shops, restaurants, and service stations\u003c\/li\u003e\n\u003cli\u003eFarms, barns, silos, and other agricultural facilities\u003c\/li\u003e\n\u003cli\u003eGovernment and municipal buildings\u003c\/li\u003e\n\u003cli\u003eUniversities, colleges, and educational facilities\u003c\/li\u003e\n\u003cli\u003eSolar photovoltaic installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSupported Load Types\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistive:\u003c\/strong\u003e incandescent lighting and heating equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitive:\u003c\/strong\u003e LED drivers, capacitor banks, electronic equipment, and motor-start capacitors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInductive:\u003c\/strong\u003e transformers, fans, refrigerators, and air-conditioning equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003cbr\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003ePhysical\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e94 × 19 × 69 mm \/ 3.70 × 0.75 × 2.71 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e62 g \/ 2.19 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eDIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTerminal conductor size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.5–2.5 mm² \/ 20–14 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum terminal torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.4 Nm \/ 4.43 lb-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStripped conductor length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e6–7 mm \/ 0.24–0.28 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eElectrical\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eAC supply voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e100–260 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePower consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLess than 3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVoltage measurement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e100–260 V RMS per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVoltage accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e±1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent measurement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0–120 A RMS per phase and neutral using current transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompatible current transformer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003ca href=\"https:\/\/kb.shelly.cloud\/knowledge-base\/ct-120a\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eShelly CT 120A\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e±1% at 2–120 A; ±2% at 1–2 A; ±5% at 0–1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNo-load threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e30 VA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCalibration minimum load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e500 W per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eConnectivity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEthernet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWi-Fi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e802.11 b\/g\/n, 2.4 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWi-Fi range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUp to 30 m indoors or 50 m outdoors, depending on conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBluetooth 4.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBluetooth range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUp to 10 m indoors or 30 m outdoors, depending on conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eEnvironmental and Hardware\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e−20°C to 40°C \/ −5°F to 105°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRelative humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e30–70% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum altitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2,000 m \/ 6,562 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eESP32-D0WDQ6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFlash memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e16 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLocal data storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAt least 45 days at one-minute resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical Interfaces\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFour line inputs: three phase inputs and one neutral input\u003c\/li\u003e\n\u003cli\u003eFour current-transformer inputs: three phase inputs and one neutral input\u003c\/li\u003e\n\u003cli\u003eOne RJ45 Ethernet port\u003c\/li\u003e\n\u003cli\u003eShelly proprietary serial interface for a compatible add-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAccuracy and Measurement Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe stated active-energy measurement accuracy is 1%, based on internal design validation and testing.\u003c\/li\u003e\n\u003cli\u003eA load of at least 500 W per channel is required for channel-to-channel calibration.\u003c\/li\u003e\n\u003cli\u003eIf the load falls below 30 VA per channel, the measured power may still be displayed, but consumed energy will not be added to the energy statistics.\u003c\/li\u003e\n\u003cli\u003ePhase-sequence detection evaluates voltage zero crossings and reports an error if an incorrect phase order is detected while the feature is enabled.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding: 16px; margin: 20px 0; background-color: #fdecec; border-left: 4px solid #d93025;\"\u003e\n\u003cstrong\u003eInstallation and safety:\u003c\/strong\u003e Installation must be completed by a qualified electrician in accordance with applicable electrical regulations. Switch off the power before connecting or disconnecting the Ethernet cable or an add-on. The add-on interface can carry dangerous voltage while the device is powered.\u003c\/div\u003e","brand":"Shelly","offers":[{"title":"Default Title","offer_id":47655059357867,"sku":"SH-SHELLY3EMPROv2","price":199.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2308\/2087\/files\/Shellypro3EMV2-5.png?v=1787103481","url":"https:\/\/www.ozsmartthings.com.au\/products\/shelly-3em-pro-v2","provider":"Oz Smart Things Pty Ltd","version":"1.0","type":"link"}