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Shelly PRO 3EM 400A WiFi 2-channel electricity consumption meter Shelly Pro 3EM 400A is a professional three-phase electricity consumption meter that can be installed on a DIN rail. The device reports accumulated energy with 1% accuracy and real-time voltage, current and power for each phase. It stores data for the last 60 days with a one-minute resolution for each phase, enabling accurate analysis. In addition, it offers advanced scripting capabilities and advanced monitoring capabilities.
Technical parameters:
Supply voltage AC: 110 - 240 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 through CT for each phase and neutral): 0-400A Current Transformer (CT) Compatible Ratings: CT-400A Ammeter Accuracy: ±1% (5-400A), ±2% (0-5A) Power and energy meters: Active and apparent power, active and apparent energy, power factor, basic active energy and basic reactive energy Calibration between channels at minimum load: 5000 W per channel No load threshold: 30 VA per channel Measurement data storage: At least 60 days with 1-minute data resolution Data export: CSV format for saved PQ values, JSON export via RPC 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 10m indoors and 30m outdoors processor: ESP32-D0WDQ6 Flash memory: 16 MB Ambient temperature: -20°C to +40°C Air humidity: 30% to 70% RH Maximum altitude: 2000 m Dimensions: 94 x 19 x 69 ±0.5 mm Weight: 62 ± 1 g Mounting: DIN rail Material: Plastic
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