Shelly
Shelly Pro 3EM. Smart Din Rail 3-Phase Energy Meter. Wi-Fi, LAN, and Bluetooth connection
Shelly Pro 3EM. Smart Din Rail 3-Phase Energy Meter. Wi-Fi, LAN, and Bluetooth connection
SKU:Pro 3EM
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Introducing the Shelly Pro 3EM: The Ultimate Three-Phase Energy Meter
Unlock the power of precise energy monitoring with the Shelly Pro 3EM, a cutting-edge DIN rail mountable energy meter. With its enhanced gen2 firmware flexibility and LAN connectivity, this device offers professional integrators and home owners an array of options to deliver top-notch solutions.
Real-Time Insights for Optimal Efficiency
The Shelly Pro 3EM goes beyond traditional energy meters by providing real-time measurements of accumulated energy, as well as instantaneous voltage, current, and power factor per phase. Stay one step ahead with accurate and up-to-date data, enabling you to optimize energy usage and make informed decisions.
Unparalleled Accuracy and Reliability
With 4 quadrant measurement and adherence to Accuracy Class B active energy standards (in compliance with IEC 62053-21 based on manufacturer testing), the Shelly Pro 3EM ensures precise and trustworthy readings. Say goodbye to guesswork and embrace the confidence that comes with highly accurate energy monitoring.
Tailored for Your Needs
The Shelly Pro 3EM is designed to adapt to various setups, including photovoltaic systems. Seamlessly integrate renewable energy solutions into your projects and harness the full potential of sustainable power.
Advanced Features for Maximum Efficiency
Detect phase sequence errors (*1), benefit from optical pulse indication of energy usage, and experience outstanding measurement accuracy of up to 1%. Additionally, the device stores data in non-volatile memory, allowing you to access historical information for up to 60 days in convenient 1-minute intervals.
Complete Package for Easy Installation
To ensure a hassle-free setup, the Shelly Pro 3EM package includes three 120A Current Transformers. Get everything you need in one go, saving time and effort during installation.
Choose the Shelly Pro 3EM for unparalleled energy monitoring capabilities, achieve maximum efficiency and cost savings.
⚠NOTICE! The Device does not have a built-in relay. Contactor control is provided using a Shelly Pro Addon attached to the Shelly Pro 3EM.
Notes:
(*1) The Device has phase sequence error detection circuits. This detection works on phase voltages and considers only the zero crossings. The regular succession of these zero-crossing events is Phase A followed by Phase B followed by Phase C. If the sequence of zero-crossing events is, instead, Phase A followed by Phase C followed by Phase B, then a phase_sequence error is reported when the Phase sequence error detection option is enabled.
No hub required, Universally compatibleShelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system. |
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No hub required, Universally compatibleShelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system. |
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| 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 |
| Shelly Pro EM-50 | Shelly Pro 3EM |
|---|---|---|
AC voltage per Channel | 100-260 volts 50/60Hz | 100-260 volts 50/60Hz |
Phases Supported | Single (same phase only) | Single, Split Single, Two, Three |
Number of CTs | 2 | 3 |
Max Amps/Channel | 50 | 120 or 400 |
Contactor Control | Yes | Requires Pro 3EM Switch Add-on |
Contactor AC | 100-260 volts 50/60Hz | 100-260 volts 50/60Hz |
Contactor DC | N/A | Up to 30 Volts |
Contactor Amperage | 2 amps | 2 amps |