Smart energy meter Shelly 3EM-63T Gen3
Description
Shelly 3EM-63T Gen3 is a compact energy meter with flat terminals, designed for monitoring a three-phase system or three independent single-phase circuits. It mounts above or below the circuit breaker on the DIN rail and connects directly to the Wi-Fi network, with no hub needed.
The device measures voltage, current, active and apparent power on each phase in real time, is photovoltaic ready and offers 4-quadrant metering. It has accuracy class B according to IEC 62053-21 and stores up to 7 days of data locally at 1-minute intervals, even when the internet connection is interrupted, thanks to its internal real-time clock.
Shelly 3EM-63T Gen3 includes optional phase sequence error detection, a minimum load threshold and optical indication of energy consumption via a light pulse. Data can be exported in CSV format or retrieved via the JSON API for integration with your own monitoring systems.
In practice, Shelly 3EM-63T Gen3 is suitable for monitoring the overall consumption of a house with a three-phase installation, for tracking the production of a photovoltaic system and the balance between production and consumption, or for separately measuring three different single-phase circuits in a workshop or commercial space.
Practical use cases
- Mounted on the main electrical panel, it gives a real-time picture of the total consumption of the home, helping to identify the appliances that use the most energy.
- Used to monitor a dedicated circuit (air conditioning, heat pump, electric car charger), it lets you track the monthly costs of each individual load.
- Useful in systems with their own energy production (photovoltaic panels), to compare the energy produced with the energy consumed and optimise the use of large appliances during peak production hours.
- Sends alerts in the app in case of abnormal consumption, helping to quickly detect faulty equipment.
Technical specifications
| Dimensions | 31 x 54 x 42 mm (without wire) |
| Weight | 52 g |
| Power supply | 220-240V AC, 50/60Hz |
| Self-consumption | < 2 W |
| Measured current | 0-63 A per phase (saturation 130 A) |
| Current accuracy | ±1% (2-63A), ±2% (1-2A), ±5% (0-1A) |
| Voltage accuracy | better than ±1% |
| Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 4.2 |
| Data storage | minimum 7 days, 1-minute resolution |
| Accuracy class | B (IEC 62053-21) |
| Operating temperature | -20°C la +40°C |
| Memory | 8 MB |
| Warranty | 3 years |
Shelly 3EM-63T Gen3 is the right choice for precise monitoring of three-phase consumption or photovoltaic production, offering detailed data, local storage and full integration into the Shelly Smart Control app.