Shelly Pro 3EM-400A (3-Phase Electricity Monitor) ...
R6020,00
The Shelly Pro 3EM‑400A (3‑Phase Electricity Monitor with three 400A clamps) is a professional‑grade DIN rail energy meter designed for monitoring high‑capacity three‑phase electrical systems. It includes three external 400A current transformers (CT clamps) for accurate measurement of large loads such as industrial machinery, solar installations, or commercial circuits.
The Shelly Pro 3EM‑400A is a next‑generation 3‑phase energy meter with Wi‑Fi, LAN, and Bluetooth connectivity. It measures voltage, current, power factor, and accumulated energy across three phases in real time. With its included 400A CT clamps, it can monitor very high current loads, making it suitable for industrial and commercial applications.
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Shelly Pro 3EM‑400A provides 4‑quadrant measurement (consumption and production), making it ideal for solar PV systems and energy‑intensive environments. It stores data in non‑volatile memory for up to 60 days in 1‑minute intervals, ensuring reliable historical tracking. The device complies with IEC 62053‑21 Accuracy Class B standards, offering measurement accuracy within 1%.
It integrates seamlessly with the Shelly Smart Control App, Alexa, Google Home, and Home Assistant, while supporting advanced protocols such as MQTT, Webhooks, HTTPS, UDP, and KNXnet/IP.
Key Features
- 3‑phase monitoring with included three 400A CT clamps.
- Real‑time measurement of voltage, current, power factor, and energy.
- Accuracy Class B (IEC 62053‑21) – ±1% measurement accuracy.
- 4‑quadrant measurement – tracks both consumption and production.
- Data storage – up to 60 days in 1‑minute intervals.
- DIN rail mountable – professional installation inside electrical panels.
- Connectivity – Wi‑Fi, LAN (Ethernet), Bluetooth.
- PV ready – ideal for solar installations.
- Phase sequence error detection option.
- Optical pulse indication of energy usage.
Technical Specifications
- Model: Shelly Pro 3EM‑400A
- Channels: 3 (three‑phase monitoring)
- Max Current: 400 A per phase (via CT clamps)
- Relay Control: Integrated
- Connectivity: Wi‑Fi 2.4 GHz, LAN (Ethernet), Bluetooth
- Protocols Supported: MQTT, Webhooks, HTTPS, UDP, TLS, KNXnet/IP
- Control Options: Shelly Smart Control App, Alexa, Google Home, Home Assistant
- Mounting: DIN rail (standard electrical panels)
- Dimensions: 18.5 mm x 89.5 mm x 69 mm
- Power Metering: Built‑in, three‑phase monitoring with CT clamps
- Weight: ~150–200 g (device + clamps)
- Safety: Galvanic isolation, IEC compliance
- Colour: White housing with black terminal accents
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