Product description: Shelly Pro EM-50 - single-phase LAN / WiFi / Bluetooth energy meter
Shelly Pro EM-50 is a single-phase , two-channel electricity meter with DIN rail mounting. The device also allows you to control the contactor thanks to the built-in currentless relay . The measurement accuracy of Shelly Pro EM-50 is 1%, historical data is stored on the device for 60 days with a resolution of 1 minute. The controller uses a WiFi/Bluetooth or LAN connection for communication, which is useful in places with limited wireless network coverage. The device is compatible with Amazon Alexa, Google Home and iOS voice assistants, as well as with Smart Home systems such as Home Assistant . The set includes two 50 A current transformers.
Shelly Pro EM-50 - single-phase LAN / WiFi / Bluetooth energy meter.
Connection diagram printed on the module.Main features of the Shelly Pro EM-50 meter
- WiFi, LAN and Bluetooh connectivity - the device uses Ethernet and WiFi at the same time, which is useful where there is no wireless network coverage. MQTT, WebSocket, UDP, mTLS protocol support.
- Class B accuracy - Shelly Pro EM-50 has a measurement accuracy of 1%.
- Modbus support - allows for easy and quick implementation in industrial installations.
- Energy measurement - monitors two independent channels on the same phase.
- Integrated switch - 2 A potential-free switch (dry contacts) to control the contactor.
- Script support - the device fully supports MJS scripts, extending its functionalities.
Application in small and medium-sized companies
Some machines and devices are turned on all the time, with Shelly Pro EM-50 you can measure with the highest accuracy and reduce energy consumption by turning off the load when there is no activity of the company - water dispensers, laminating machines and lighting. The smart device can also be used for preventive measurements by monitoring abnormal behavior of HVAC systems, air compressors, refrigerators, and more.
Shelly Pro EM-50 is able to control the energy consumption of a given device.
Monitoring energy production from renewable sources.
Monitoring of renewable energy produced
If you have a photovoltaic (PV) system, Shelly Pro EM-50 will help you measure grid and renewable energy. In addition, it has configurable load control, which allows you to redirect excess energy generated to home electronic devices and optimize energy consumption. Shelly Pro EM-50 can be used to charge a car or household appliances when the system is supplying excess energy.
Shelly Pro EM-50 energy meter specifications
- Supply voltage: 110 V to 240 V AC, 50 / 60 Hz
- Power consumption: up to 3 W
- Switching voltage: up to 240 V AC
- Voltmeter accuracy: ±1%
- Switching current: up to 2 A
- Voltage measurement (RMS): up to 100 V to 260 V AC
- Current measurement (RMS via current transformer): 0 A to 50 A
- Ammeter accuracy: ±1% (5 A to 50 A), ±2% (0 A to 5 A)
- Power and energy counter: active and apparent power, active and apparent energy
- No load threshold: 30 VA per phase
- Measurement data storage: at least 60 days with 1-minute data resolution
- Data export: CSV for recorded PQ values, export in JSON format via RPC
- Built-in sensor: temperature
- RF band: from 2400 MHz to 2495 MHz
- Max. RF power: up to 20 dBm
- WiFi protocol: 802.11 b/g/n
- WiFi range: up to 30 m indoors and 50 m outdoors (depending on local conditions)
- Bluetooth protocol: 4.2
- Bluetooth range: up to 10 m indoors and 30 m outdoors (depending on local conditions)
- Chip: ESP32-D0WDQ6
- Flash memory: 16 MB
- Firmware:
- webhooks: 20 with 5 URLs/hook
- scripts
- MQTT
- CoAP
- Operating temperature: from -20°C to 40°C
- Operating humidity: 30% to 70% RH
- Max. altitude: up to 2000 m
- Mounting: DIN rail
- Maximum torque of screw clamps: 0.04 Nm
- Wire cross-section: from 0.5 mm 2 to 2.5 mm 2
- Cable length without insulation: from 6 mm to 7 mm
- Housing material: plastic
- Housing color: white
- Dimensions: 94 x 19 x 69 mm
- Weight: 63 g ±1 g
Contents of the Shelly Pro EM-50 set.
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