Shelly Pro3 EM is a three-phase energy meter that measures energy in three individual phases using current transformer clamps up to a 120 A load with 99% accuracy. The device reports accumulated energy in real time as well as instantaneous voltage, current and power factor per phase. It stores data in non-volatile memory that can be retrieved for up to 60 days at 1-minute intervals.
Shelly Pro 3EM is designed for DIN-rail installation and includes three current transformers. The device reports power measurement (W), voltage measurement (V), current measurement (A) and power factor (PF) in real time and stores measurements locally on the device for up to 60 days and for 365 days when connected to the Shelly Cloud app. The device also meets the IEC 62053-21 standard requirements with accuracy equivalent to class B (maximum 1% deviation). Shelly Pro 3EM has a built-in real-time clock that retains the time and date if the connection to the SNTP server is lost.
Shelly Pro 3EM can be connected to the Internet or a local 2.4 GHz WiFi network. In addition, the device has built-in Bluetooth, as with all Pro and Plus devices, which allows Shelly Pro 3EM to be used as a gateway to other Shelly Bluetooth devices. The device operates locally without a connection to Shelly Cloud, but activating it is recommended to facilitate data storage and increase functionality. The device can also communicate via MQTT, HTTP and WebSocket. In addition, Pro 3EM supports the MODBUS bus, enabling easy and fast deployment in existing industrial installations.
The device is equipped with 2nd generation hardware that includes a powerful ESP32 processor and enhanced safety features such as overheat, overcurrent, overvoltage and overload protection. It also enables the use of scripting functions for advanced and customized operations as well as range extension functionality with the device.
Note that Shelly Pro 3EM does not have a built-in dry-contact relay like the old Shelly 3EM. Instead, a Shelly Pro Add-On module can be connected for switching up to three phases.
Shelly smart home products support the Amazon Alexa and Google Assistant virtual assistants. In addition to the above, many other smart home systems/platforms are also supported (verify compatibility per product). Shelly products connect to a wireless Wi-Fi network and do not require a separate home automation controller to operate.
Note! You will need the assistance of an electrician for fixed electrical network installations.
Features
- Model: Shelly Pro 3EM
- Rated voltage: alternating current: 110 - 240 V, 50/60 Hz
- Three independent max. 120 A measurement channels
- Up to 60 days of history stored in internal memory
- Wireless standard: Wifi 802.11b/g/n, 2.4 GHz
- MQTT, HTTP, WebSocket, MODBUS support
- Shelly Cloud app - Android and iOS support
- Operating temperature: -20 ºC to +40 ºC, indoor use only
- Dimensions: 94 x 19 x 69 mm
- Weight: 62 g
Delivery
- Shelly Pro 3EM
- 120 A clamps, 3 pcs
- User manual
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