The Shelly 3EM-63W Gen3 is a compact energy meter designed to monitor three phases or three separate single-phase circuits. It provides accurate real-time energy consumption monitoring, enabling the optimisation of electricity usage in homes or professional environments. The device is also ready for use with photovoltaic systems.
Main features
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Version with permanently connected cables
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Wi-Fi + Bluetooth connectivity without the need for a hub
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New current transformers (CTs) suitable for installation below or above a circuit breaker
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Each phase measures up to 63 A
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Optical energy consumption indicator
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Support for photovoltaic systems
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Measurement accuracy of up to ±1%
Technical specifications
| Parameter |
Value |
| Dimensions (without cables) |
21 × 54 × 42 mm |
| Weight (including cables) |
Approx. 58 g |
| Cable length |
260 mm (including flat terminal) |
| Operating temperature |
−20 °C to +40 °C |
| Relative humidity |
30%–70% RH |
| Supply voltage |
220-240 V AC, 50/60 Hz (between LA and N) |
| Power consumption |
< 2 W |
| Maximum current (external protection) |
63 A, B or C characteristic |
| Internal temperature sensor |
Yes |
Measured values
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Active and apparent power
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Voltage and current of each phase
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Power factor
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Active and reactive energy
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Four-quadrant measurement
Communication and compatibility
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2.4 GHz Wi-Fi (802.11 b/g/n)
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Bluetooth 4.2
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Support for protocols such as KNXnet/IP and MQTT
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Data export: CSV (PQ values), JSON via RPC
Additional information
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Product code: SHELLY-3EM-63W-1770
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EAN: 3800235261958
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Brand: Shelly
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Accuracy class: Class B (IEC 62053-21)
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Enclosure material: white plastic
