Shelly PRO 3EM 120A V2 WiFi Smart Energy Meter with Matter Support
The Shelly PRO 3EM 120A V2 is a professional-grade DIN rail mountable three-phase energy meter designed for precise energy monitoring in homes, offices, and industrial facilities. With Wi-Fi, Bluetooth, and LAN connectivity, plus Matter-ready smart home integration, this device delivers accurate real-time energy data with 1% measurement accuracy across up to 120A per phase. Perfect for monitoring solar PV systems, tracking electrical consumption, and managing energy costs across multiple circuits.
Why Choose the Shelly PRO 3EM 120A V2?
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Matter-Ready Smart Integration: Upgradable to Matter protocol for seamless compatibility with major smart home platforms
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Professional-Grade Accuracy: Class B active energy measurement with 1% accuracy compliant with IEC 62053-21
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Triple Connectivity: Simultaneous Wi-Fi, Ethernet LAN, and Bluetooth for flexible installation and reliable monitoring
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Advanced Data Storage: Stores up to 60 days of historical energy data in 1-minute intervals in non-volatile memory
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4-Quadrant Measurement: Track both imported and exported energy separately for each phase, ideal for solar PV monitoring
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Three 120A Current Transformers Included: Everything you need to start monitoring right out of the box
Comprehensive Energy Monitoring
The Shelly PRO 3EM reports accumulated energy, instantaneous voltage, current, active power, apparent power, and power factor per phase in real time. It can monitor three-phase systems or up to three separate single-phase circuits simultaneously, making it incredibly versatile for residential, commercial, and industrial applications.
Smart Home Integration & Automation
Enhanced with Gen 2 firmware flexibility, the PRO 3EM V2 supports mjS scripting, MQTT, HTTP, WebSocket, and MODBUS protocols. Use scripting functionalities to create complex automation scenes, control other Shelly or WiFi devices based on energy consumption, and manage electric vehicle charging, heating, or cooling systems based on PV production - all without requiring a cloud connection.
Photovoltaic Ready
With 4-quadrant measurement and the ability to track energy flow in both directions, the Shelly PRO 3EM is perfect for solar installations. Monitor production, consumption, and export with precision, and integrate seamlessly with home automation platforms like Home Assistant for comprehensive energy management.
Professional Features
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MODBUS Support: Fast deployment in existing industrial installations with voltage, current, power, and energy reporting
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Real-Time Clock: Maintains accurate timestamps even when internet connection is lost
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Phase Sequence Error Detection: Optional monitoring to ensure correct installation
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Optical Pulse Indication: Visual confirmation of energy usage
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Enhanced Security: TLS encryption, custom certificates, MQTT, and WebSocket support
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Flame Retardant Housing: V-0 rated shell with overtemperature, overpower, and overvoltage protection
Easy Installation & Control
Designed for DIN rail mounting, the compact device measures just 94 × 19 × 69 mm and weighs only 62 grams. Control directly from your smartphone using the free Shelly Cloud App with no hub required, or integrate with popular platforms including Amazon Alexa, Google Home, Apple HomeKit (via Matter), and home automation systems.
What's in the Box
- Shelly PRO 3EM 120A V2 energy meter
- 3 × 120A current transformers
- Quick start guide
Full Specifications
Device Information
| Device Name |
Shelly Pro 3EM |
| Device Model |
SPEM-003CEBEU |
| EAN Code |
3800238073862 |
Measurement & Performance
| Maximum Current per Phase |
120A |
| Measurement Accuracy |
1% (Class B active energy, IEC 62053-21) |
| Measurement Type |
4-quadrant with multiple connection types |
| Current Transformers Included |
3 × 120A |
| Data Storage |
Up to 60 days in 1-minute intervals (non-volatile memory) |
| Photovoltaic Ready |
Yes |
Connectivity
| Wireless |
Wi-Fi 802.11 b/g/n, Bluetooth |
| Wired |
Ethernet LAN (RJ45) |
| Matter Support |
Yes (upgradable via firmware) |
| Protocols |
MQTT, HTTP, WebSocket, MODBUS, TLS |
| Device SSID |
ShellyPro3EM-XXXXXX |
Physical Specifications
| Dimensions |
94 × 19 × 69 mm (±0.5 mm) |
| Weight |
62 g (±1 g) |
| Mounting |
DIN rail |
| Housing Material |
Plastic (flame retardant V-0) |
| Wire Cross-Section |
0.5 to 2.5 mm² / 20 to 14 AWG |
| Max Screw Torque |
0.4 Nm |
Additional Features
| Scripting |
mjS scripting support |
| Real-Time Clock |
Yes |
| Phase Sequence Error Detection |
Optional |
| Optical Pulse Indication |
Yes |
| Protection |
Overtemperature, overpower, overvoltage |
Warranty & Support
| Warranty Period |
5 years (Shelly Pro series) |
Specifications are sourced from the manufacturer product page and may be updated.
