Shelly Pro 3EM 3-Phase Energy Meter - 3x 120 A clamps, Wi-Fi, DIN rail
Shelly Pro 3EM 3-Phase Energy Meter - 3x 120 A clamps, Wi-Fi, DIN rail
Pay in 30 days
Pay in 30 days
Description
Next-generation 3-phase energy meter
Shelly Pro 3EM is a Wi-Fi-powered, DIN-mountable 3-phase energy meter with Wi-Fi, Bluetooth, and LAN connectivity. With its active energy measurement accuracy of 1%, Shelly Pro 3EM can be used to monitor the consumption of all household appliances, circuits, and office equipment individually. Historical data is stored for up to 60 days, with one-minute resolution for each phase. In addition, the scripting functionalities allow complex scenarios to be executed and provide advanced monitoring options.
WHY SHELLY PRO 3EM?
Next-generation 3-phase energy meter
Shelly Pro 3EM is a Wi-Fi-powered, DIN-mountable 3-phase energy meter with Wi-Fi, Bluetooth, and LAN connectivity. With its active energy measurement accuracy of 1%, Shelly Pro 3EM can be used to monitor the consumption of all household appliances, circuits, and office equipment individually. Historical data is stored for up to 60 days, with one-minute resolution for each phase. In addition, the scripting functionalities allow complex scenarios to be executed and provide advanced monitoring options.
Features
4-quadrant measurement
For measuring the capacitive and inductive load types of imported and exported active energy.
Accuracy class B (active energy)
Shelly Pro 3EM features measurement accuracy of 1%.
MODBUS support
Enables easy and fast deployment in existing industrial facilities.
Wi-Fi, LAN, and Bluetooth connectivity
Simultaneous Ethernet and Wi-Fi use. MQTT, incoming and outgoing WebSocket, UDP, and mTLS support.
Power grid monitoring
Simultaneous monitoring of a single-phase electrical system with up to 3 outlets. Fast notifications and at least 60 days of data storage in one-minute intervals.
Scripting functionalities
Shelly Pro 3PM fully supports mjS scripting, enabling you to create additional features and functionalities.
Commercial-grade security
Shelly Pro 3EM supports mTLS for MQTT, HTTP, and secure outgoing WebSockets. Commercial-grade security enables direct connections to your cloud infrastructure and reduces the cost of deploying complex networks and VPNs.
Endless applications
Industrial facilities
Shelly Pro 3EM supports MODBUS for voltage, current, power, and energy. Your energy consumption and instantaneous voltage, current, and power values can be measured accurately. Our new firmware platform enables custom implementations that can report to your infrastructure every 100 ms.
Bidirectional energy consumption monitoring
Monitor your home, office, or factory to prevent unnecessary expenses or voltage drops that can damage your household and office appliances. Shelly Pro 3EM can calculate bidirectional consumption: the energy produced and consumed for each of the three phases. The device can also be configured to measure three separate circuits of a single-phase electrical system. Display the quality of your power grid in terms of active power, reactive power, voltage, and power factor.
Local control
Thanks to the scripting capabilities and webhooks of Shelly Pro 3EM, you can easily control other Shelly or Wi-Fi devices on your local network. Use these functions to set precise parameters for heating, cooling, or charging electric vehicles based on your PV generation, and automatically disconnect your devices from the power supply. All this works without having to use a cloud.
Monitoring and controlling solar panels
Monitor how much energy your solar panels or wind turbines generate - save effortlessly. Shelly Pro 3EM provides real-time information on the efficiency of your solar and wind energy system, as well as historical data on energy generation and consumption over the past 60 days - in one-minute intervals. This allows you to control the flow of energy and use your solar panels and wind turbines as efficiently as possible. As a further step, you can link Shelly Pro 3EM to your other Shelly devices and create scenarios to trigger desired actions, such as switching off household appliances or triggering an alarm.
Specifications
| Physical | |
|---|---|
| Current Transformer: | 3 x CT120 included in the package |
| Size (HxWxD): | 94x19x69 ±0.5 mm / 3.70x0.75x2.71 ±0.02 in |
| Weight: | 62 ±1 g / 2.19 ±0.05 oz |
| Mounting: | DIN rail |
| Screw terminals max torque: | 0.4 Nm / 4.43 lbin |
| Conductor cross section: | 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded and bootlace lugs) |
| Conductor stripped length: | 6 to 7 mm / 0.24 to 0.28 in |
| Shell material: | Plastic |
| Color: | White |
| Environmental | |
| Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| Max. altitude: | 2000 m / 6562 ft |
| Electrical | |
| Power supply voltage AC: | 110 - 240 V, 50/60 Hz |
| Power supply voltage DC: | N/A |
| Power consumption: | < 3 W |
| Sensors, meters | |
| Temperature sensor: | Yes |
| Voltmeters (RMS for each phase): | 100 - 260 V |
| Voltmeters accuracy: | ±1 % |
| Ammeters (RMS via CT for each phase and the Neutral): | 0 - 120 A |
| Ammeters accuracy: | ±1 % (2 - 120 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A) |
| Power and energy meters: | Active and apparent power; Active and apparent energy; Power factor; Fundamental active and fundamental reactive energy |
| Measurement data storage: | At least 60 days of 1 min data resolution |
| Data export: | CSV for PQ recorded values, JSON format export trough RPC |
| Radio | |
| RF band: | 2401 - 2495 MHz |
| Max. RF power: | <20 dBm |
| Wi-Fi protocol: | 802.11 b/g/n |
| Wi-Fi Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) |
| Bluetooth Protocol: | 4.2 |
| Bluetooth Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)" |
| MCU | |
| CPU: | ESP32-D0WDQ6 |
| Flash: | 16 MB |
| Firmware capabilities | |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | mJS |
| MQTT: | Yes |
| CoAP: | No |