Shelly PRO 3EM 120A Wi-Fi
Shelly Pro 3EM 120A is a professional, three-phase energy meter that can be mounted on a DIN rail. The device provides information on the accumulated energy with an accuracy of 1% and the instantaneous voltage, current and power per phase in real time. It stores data for the last 60 days with a resolution of one minute for each phase to provide accurate analysis. It can operate autonomously on a local LAN and/or Wi-Fi network or operate via a cloud-based home automation service via the MQTT, HTTP and WebSocket protocols. In addition, with the scenario function, it provides the ability to create advanced scenarios and offers extensive monitoring options.

Specifications:
Manufacturer | Shelly |
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Model | SPEM-003CEBEU120 |
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AC supply voltage | 100 - 260V, 50/60Hz |
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Power consumption | < 3W |
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Internal temperature sensor | Yes |
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Voltmeters (RMS for each phase) | 100 - 260V |
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Voltmeter accuracy | ±1>#/td### |
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Ammeters (RMS with current transducers for each phase and neutral) | 0 - 120A |
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Compatible current transformer (CT) | CT 120A |
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Ammeter accuracy | ±1% (2 - 120A), ±2% (1 - 2A), ±5% (0 - 1A) |
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Active and apparent power and energy meters | Active and apparent power, active and apparent energy, power factor, fundamental energy and reactive fundamental energy |
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Channel-to-channel calibration with minimal load | 500W per channel |
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No-load threshold | 30VA per channel |
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Measurement data storage: | With 1 minute data analysis |
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Wi-Fi protocol | 802.11 b/g/n |
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Wi-Fi range | Up to 30m indoors and 50m outdoors |
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Bluetooth protocol | 4.2 |
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Bluetooth range | Up to 10m indoors and 30m outdoors |
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CPU | ESP32-D0WDQ6 |
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Flash memory | 16MB |
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Dimensions | 94 x 19 x 69 ±0.5mm |
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Weight | 62 ±1g |
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Place | DIN rail |
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Housing material | Plastic |
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Ambient temperature | -20°C to +40°C |
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Moisture | 30% to 70% RH |
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Maximum altitude | 2000m |
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