Shelly 3EM-63T Gen3 1/3 channel WiFi energy meter (flat terminal)
The Shelly 3EM-63T Gen3 energy meter is a compact 1/3 channel energy meter, designed to monitor three-phase installations or three independent single-phase circuits. With flat terminals and a housing designed for mounting above or below a circuit breaker, it easily fits into standard distribution panels. This small device is ideal for homes, apartments, businesses and photovoltaic installations - wherever accurate control of energy consumption is important.
Application flexibility - one unit, many possibilities
Shelly 3EM-63T Gen3 is a solution for everyone - whether you want to monitor energy consumption in the household, assign consumption to specific departments of the company, or supervise energy production from photovoltaic panels. The device supports both three-phase installations and three independent single-phase lines, allowing it to fit into almost any configuration. In addition, thanks to 4-quadrant measurement, the meter records both energy consumed and energy delivered, which is useful, for example, in photovoltaic and hybrid systems.
Intuitive operation, extensive integration
The unit connects to the network via Wi-Fi and Bluetooth - without the need for an external gateway. It can be managed from the Shelly Smart Control application, the web interface or via the MQTT, HTTP and WebSocket protocols. All incoming connections are protected by TLS encryption. In turn, data can be exported in CSV or JSON format.
Non-stop monitoring and analysis
The Shelly 3EM-63T Gen3 offers voltage, current, active and apparent power, power factor and energy measurement - with accuracy that meets class B (IEC 62053-21). A built-in clock maintains correct time stamps even if internet access is lost. Measurement data is recorded locally every 1 minute and stored for at least 7 days, giving you access to your consumption history even if you are temporarily not connected to the cloud.
Automation and security
Shelly 3EM-63T Gen3 allows you to create schedules (up to 20) and configure webhooks (up to 20, with up to 5 URLs each). In addition, local automation allows, for example, to respond to instantaneous energy consumption and trigger specific actions, while a built-in "no-load threshold" prevents energy metering at very low consumption (less than 30 VA per channel).
Ready for solar energy
The Shelly 3EM-63T Gen3 is also ideal for monitoring photovoltaic systems. It allows simultaneous monitoring of energy production and consumption, allowing you to accurately match equipment operation to the instantaneous energy availability from the panels. This makes it easy to reduce grid draw and optimize self-consumption - for example, operating energy-intensive equipment during peak sunshine hours.
Clear information and full control
The device features LED lights to indicate its current status (including Wi-Fi connectivity and OTA updates) and a single button to quickly enter configuration mode or reset to factory settings. It also has a built-in temperature sensor. In addition, it is very easy to install.
Shelly Smart Control application
The meter works with the Shelly Smart Control app, which allows you to remotely manage the device, view energy consumption, and create schedules and automations. With its help, you can also monitor data, view measurement history, and track energy costs.
Specifications:
| Manufacturer | Shelly |
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| Model | 3EM-63TGen3 |
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| Dimensions | 31 × 54 × 42 mm (without cable) |
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| Cable length | 260 mm (including flat terminal) |
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| Weight | 52 g (with cable) |
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| Diameter of the conductive hole | 8mm |
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| Place | Above or below DIN rail overcurrent switches |
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| Housing material: | Plastic |
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| Housing color: | White |
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| Operating temperature | From -20°C to 40°C |
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| Moisture: | HUMIDITY: 30% - 70% RH |
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| Maximum installation altitude: | 2000 m |
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| Power supply | 220-240 V~ 50/60 Hz (between LA and N) |
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| Power consumption | < 2W |
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| External protection | 63 A, characteristics B or C, short-circuit current 6 kA, energy limitation class 3 |
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| Internal temperature sensor | Yes |
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| Voltmeters (RMS for each phase) | 220-240V~ 50/60Hz |
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| Voltmeter accuracy | Better than ±1>#/td### |
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| Ammeters (RMS via built-in current transformer for each phase) | 0-63 A (saturation 130 A) |
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| Ammeter accuracy | ±1% (2-63 A), ±2% (1-2 A), ±5% (0-1 A) |
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| Power and energy meters | Active and apparent power, active and apparent energy, power factor, basic active and reactive energy |
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| Minimum load limit | 30 VA |
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| Saving measurement data | At least 7 days with 1 minute data analysis |
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| Data export | CSV for recorded PQ values, JSON via RPC |
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| Wi-Fi protocol | 802.11 b/g/n |
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| Wi-Fi RF bandwidth | 2401-2483 MHz |
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| Maximum Wi-Fi RF signal strength | < 20 dBm |
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| Wi-Fi connection range | Up to 30 m indoors / up to 50 m outdoors (depending on local conditions) |
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| Bluetooth protocol | 4.2 |
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| Bluetooth RF Band | 2400-2483.5 MHz |
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| Max. Bluetooth RF signal strength | < 4 dBm |
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| Bluetooth connection range | Up to 10 m indoors / 30 m outdoors (depending on local conditions) |
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| Processor (CPU) | ESP-Shelly-C38F |
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| Flash memory | 8MB |
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| Programs | Up to 20 |
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| Webhooks (URL shares) | Up to 20, up to 5 URLs per webhook |
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| Scenarios: | Yes |
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| MQTT | Yes |
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