Shelly Pro 3EM 3-phase power consumption meter 120A WiFi LAN DIN opt. Addon

Article description Shelly Pro 3EM:

Smart WiFi electricity meter for 3 phases

The Shelly Pro 3EM is a WiFi powered, DIN mountable 3-phase power consumption meter with WiFi, Bluetooth and LAN connectivity. With its 1% active energy measurement accuracy, the Shelly Pro 3EM can be used to individually monitor the consumption of all household appliances, circuits and office equipment. Historical data is stored for up to 60 days, with each phase having a one-minute resolution. In addition, the scripting functionalities allow the execution of complex scenarios and offer extended monitoring options.

Monitoring and controlling solar panels: Watch how much energy your solar panels or wind turbines produce - save effortlessly. Shelly Pro 3EM gives you 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 last 60 days - in one-minute increments. This way you can control the flow of energy and use your solar panels and wind turbines most efficiently. In a further step, you can link Shelly Pro 3EM to your other Shelly devices and create scenarios to trigger desired actions such as turning off household appliances or triggering an alarm.

Commercial-grade security: Shelly Pro 3EM supports mTLS for MQTT, HTTP, and secure outbound WebSockets. Commercial-grade security enables direct connections to your cloud infrastructure and reduces the cost of deploying complex networks and VPNs.

Industrial facilities: Shelly Pro 3EM provides support for MODBUS for voltage, current, power and energies. Your energy consumption and instantaneous values ​​of voltage, current and power can be recorded precisely. Our new firmware platform enables a custom implementation that can report to your infrastructure every 100 ms.

Two-way energy consumption monitoring: Thanks to Shelly Pro 3EM's scripting functionalities and webhooks, you can easily control other Shelly or WiFi devices on your local network. Use these features to Set precise parameters for heating, cooling or EV charging based on your PV production and automatically isolate your devices from electricity consumption. All of this works without you having to use a cloud.

Local Control: Monitor your home, office or factory to avoid unnecessary expenses or brownouts that can damage your home and office devices. With the Shelly Pro 3EM you can calculate two-way consumption, both the energy produced and consumed for each of the three phases. The device can also be configured to measure three separate circuits in a single-phase electrical system. It shows you the quality of your power grid in terms of active power, reactive power, voltage and power factor.

Functions:

Photovoltaics -Suitable for photovoltaics

4-quadrant measurement - For measuring the capacitive and inductive load Types of the imported and exported active energy.

Accuracy class B (active energy) - The Shelly Pro 3EM has a measurement accuracy of 1%. (Compliance with IEC 62053-21 based on manufacturer testing)

WLAN, LAN and Bluetooth connectivity - Simultaneous Ethernet and WLAN use. MQTT, inbound and outbound WebSocket, UDP, mTLS support.

MODBUS support - Allows easy and quick use in existing industrial systems.

Power Grid Monitoring - Monitors single-phase electrical systems with up to 3 points simultaneously. Fast notifications and at least 60 days of 1-minute recording retention.

Scripting functionalities - Shelly Pro 3PM fully supports mjS scripting, which allows you to create additional features and functionality.

Data Storage - Storage that can be accessed at 1-minute intervals over a period of up to 60 days

Article description Shelly Pro 3EM Addon:

Add-on for Shelly Pro 3EM

A galvanically isolated switch designed to expand the capabilities of your Shelly Pro 3EM. This additional device allows you to easily control contactors and other electrical devices, giving you more flexibility and control over your consumption.

Load Shedding - Keep track of how much energy your solar panels and wind turbines are producing and save effortlessly by controlling your consumption with the Shelly Pro 3EM add-on. Connect the Shelly Pro 3EM add-on to your devices and use Shelly Pro 3EM's real-time information about the amount of energy generated and consumed. If you need to save energy, the Shelly Pro 3EM add-on can automatically turn off unnecessary devices in your home.

Weather-dependent control - Shelly Pro 3EM, expanded with the Shelly Pro 3EM add-on, enables weather-controlled energy optimization. Using scripts, you can efficiently control your devices based on the weather forecast. After receiving real-time weather data, Shelly Pro 3EM implements the actions defined in the script. For example, the Shelly Pro 3EM add-on can automatically turn off the heating when the forecast shows a sunny day to avoid higher temperatures.

PV system balancing - If your PV system produces more energy than your home uses, the Shelly Pro 3EM add-on can automatically activate devices to use this excess energy. For example, you can Set your water heater, electric vehicle charging station, or other energy-intensive devices to turn on. This allows you to use the energy generated by your PV system efficiently and reduce your dependence on the power grid.

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The addon is only compatible with Shelly Pro 3EM!

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Technical data Shelly Pro 3EM:

CPU: ESP32-D0WDQ6

Wi-Fi Type: IEEE 802.11 b/g/n 2.4GHz

Flash: 16 MB

Bluetooth protocol: 4.2

Bluetooth range: Up to 10 m indoors and 30 m outdoors

Security protocols: WEP/WPA-PSK/WPA2-PSK

Power of the radio signal: 1mW

Outdoor operating range: up to 50m

Indoor operating range: up to 30m

Size: 94 x 19 x 69 mm

Weight: 62g

Mounting Type: DIN rail

Working temperature: -20°C - 40°C

Working humidity: 30% - 70% RH

Input voltage AC: 110-240 V ±10%, 50/60Hz

Power measurement: 3 channels

Voltage meter (RMS for each phase): 100 - 260 V

Accuracy of voltage meters: ±1%

Max. Input current per channel: 120A

Accuracy of current meters: ±1% (2 - 120 A), ±2% (1 - 2 A), ±5% (0 - 1 A)

Power and energy counter: active and apparent power; power factor; Fundamentally active and fundamentally reactive energy

Storage of measurement data: At least 60 days with a data resolution of 1 minute

Data export: CSV for recorded PQ values, JSON format export via RPC

Webhooks (URL actions): 20 with 5 URLs per hook

Scripting: mJS

MQTT: Yes

Overload shutdown: Yes

Consumption limit: Yes

Overtemperature protection: Yes

Device material: plastic

Technical data Shelly Pro 3EM Addon:

Model: Pro 3EM Switch Add-On

Size (HxWxD): 94x19x69 ±0.5 mm

Mounting: DIN rail, connected to a Shelly Pro 3EM

Conductor cross section: 0.5 to 2.5 mm²

Length of conductor: 6-7mm

Device material: plastic

Color: White

Ambient temperature: -20 °C to 40 °C

Humidity: 30% to 70% RH

Power supply AC: Not applicable

Power supply DC: 3.3V and 12V (from Shelly Pro 3EM device)

Energy consumption: < 1W

Max switching voltage AC: 240V

Max switching voltage DC: 30V

Max switching current AC: 2A

Max switching current DC: 2A

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Set variants

Shelly Pro 3EM + Addon Shelly Pro 3EM without addon addon only