Professional Shelly Pro three-phase energy meter for DIN-rail mounting that measures consumption and instant values in real time. It offers measurement accuracy up to ±1%, minute-by-minute logs for up to 60 days, connectivity via LAN/Wi‑Fi/Bluetooth, and easy integration thanks to MQTT, HTTP, WebSocket protocols and compatibility with the Matter standard.
High-accuracy three-phase measurement
Monitor voltage (RMS), current (RMS via current transformers), and power for each phase in real time. Voltmeter accuracy is ±1% and ammeter accuracy up to ±1% in the 2–120 A range, giving you reliable data for monitoring and consumption optimization.
Consumption history up to 60 days in 1-minute intervals
The device stores measured data for at least 60 days with 1-minute resolution for each phase. Ideal for long-term tracking, period comparisons, and identifying inefficient operation.
Flexible integration options: LAN/Wi‑Fi/Bluetooth and Matter
Connect the energy meter locally or remotely. Support for Ethernet (LAN), Wi‑Fi 802.11 b/g/n, and Bluetooth 4.2 simplifies installation and management. With Matter and the MQTT, HTTP, WebSocket protocols, you can easily integrate it into automation and smart home systems.
Shelly Pro 3EM Matter 120 A is a smart three-phase energy meter designed for accurate monitoring of energy and electrical parameters in homes, businesses, and industrial installations. It displays RMS voltage and current values and calculates active and apparent power and energy, including power factor. Thanks to integrated storage, it records historical data in 1-minute intervals for at least 60 days, which greatly simplifies consumption analysis and cost optimization.
The device can operate locally on the network via Ethernet (LAN) and/or Wi‑Fi, optionally with cloud management. It supports MQTT, HTTP, and WebSocket for integration into smart home and automation systems, and it also offers scripting for creating advanced scenarios and rules. Compatibility with the Matter standard makes it easier to connect with selected ecosystems and control platforms.
Main benefits:
- Three-phase measurement with monitoring of voltage, current, and power for each phase
- Accurate energy measurement and clear consumption evaluation
- Data history in 1-minute intervals for at least 60 days
- LAN/Wi‑Fi/Bluetooth for flexible connectivity and commissioning
- Matter for easier smart home integration
Specifications
- Manufacturer
- Shelly
- Model
- PRO 3EM Matter
- AC power supply
- 100–260 V, 50/60 Hz
- Power consumption
- < 3 W
- Internal temperature sensor
- Yes
- Voltmeters (RMS for each phase)
- 100–260 V
- Voltmeter accuracy
- ±1%
- Ammeters (RMS via current transformers for each phase and neutral)
- 0–120 A
- Compatible current transformer (CT)
- CT 120 A
- Ammeter accuracy
- ±1% (2–120 A), ±2% (1–2 A), ±5% (0–1 A)
- Measured energy and power quantities
- Active and apparent power, active and apparent energy, power factor, active energy and basic reactive energy
- Inter-channel calibration at minimum load
- 500 W per channel
- No-load threshold
- 30 VA per channel
- Measured data storage
- At least 60 days with 1-minute data resolution
- Wi‑Fi protocol
- 802.11 b/g/n
- Wi‑Fi range
- Up to 30 m indoors and 50 m outdoors
- Bluetooth protocol
- 4.2
- Bluetooth range
- Up to 10 m indoors and 30 m outdoors
- CPU
- ESP32-D0WDQ6
- Flash memory
- 16 MB
- Dimensions
- 94 × 19 × 69 ±0.5 mm
- Weight
- 62 ±1 g
- Mounting
- DIN rail
- Enclosure material
- Plastic
- Ambient temperature
- -20 °C to +40 °C
- Humidity
- 30% to 70% RH
- Maximum altitude
- 2000 m
- Matter compatibility
- Yes
