Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring
$81.49
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Product description
Commercial Building Optimization
Monitor power consumption of devices and circuits to identify high energy users. Use Shelly Pro EM-50 for contactor control, turning off appliances at night to save energy.
Industrial Power Monitoring
Deploy Shelly Pro EM-50 in industrial installations to monitor energy usage and ensure machinery operates within safe parameters, preventing downtime and equipment damage.
Smart Office Management
Use Shelly Pro EM-50 to detect high-energy consumption devices in your office. Combine with smart devices to automate lighting, HVAC, and systems, improving efficiency and reducing costs.
Renewable Energy
If you have a photovoltaic system at home, Shelly measures grid and renewable energy. Use load control to redirect excess energy to car chargers and appliances, optimizing energy consumption.
Size (HxWxD): 94x19x69 ±0.5 mm / 3.70×0.75×2.71 ±0.02 in Mounting DIN rail Ambient temperature -20 °C to 40 °C / -5 °F to 105 °F Power supply voltage AC 110 – 240 V, 50/60 Hz Power consumption < 3 W Internal-temperature sensor Yes Voltmeters (RMS for phase) 100 – 260 V Voltmeters accuracy ±1 % Power and energy meters Active and apparent power, Active and apparent energy, Power factor, Fundamental active and fundamental reactive energy Wireless/WiFi Protocol 802.11 b/g/n Wi-Fi Range Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors Bluetooth Range Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors Webhooks (URL actions): 20 with 5 URLs per hook Scripting and MQTT Yes
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Customer Reviews
4.6 out of 5 stars 2,911
4.6 out of 5 stars 2,911
4.6 out of 5 stars 2,911
4.5 out of 5 stars 2,181
Price
$81.49$81.49
$128.99$128.99
$247.99$247.99
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Functions
Real-time energy monitoring
Real-time energy monitoring
Real-time energy monitoring
Real-time energy monitoring
Additional functions
Measures up to 50 A per phase
Measures up to 120 A per phase
Measures up to 400 A per phase
Measure energy consumption
Power Supply
AC
AC
AC
AC
Inputs
2 inputs
3 inputs
3 inputs
3 Inputs
Outputs
2 Channels
2 Channels
2 Channels
3 Channels
Wi-Fi and Bluetooth
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✔
✔
✔
Shelly Pro EM 50A is a Wi-Fi energy meter with contactor control and LAN connectivity. Designed for DIN rail mounting, this single-phase, dual-channel energy meter comes with an integrated switch featuring potential-free contacts for precise contactor control. The package includes two 50A current transformers for accurate energy measurement. Additionally, it functions as a Bluetooth gateway, enhancing smart home integration and connectivity.
Perfect for SMB owners – If you own a small or medium-sized business, chances are you’ve struggled with excessive energy consumption at some point. Some machines and equipment are on all the time. With the Shelly PRO EM-50 you can measure and reduce consumption with the highest precision by switching off consumers such as water dispensers, laminators and lights at night.
Home Renewable Energy Ecosystem – If you have a photovoltaic (PV) system at home, the Shelly PRO EM-50 can help you meter grid and imported energy from renewable sources. It also features configurable load control, allowing you to redirect excess energy from renewable sources to electronic devices in your home, optimizing your energy use.
Shelly Smart Control App will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation.
Shelly Smart Control App will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation.
13 reviews for Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring
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$81.49
Tom –
Works perfectly and easy to install / setup
Excellent product and easy installation. Allows me to monitor a remote condo and keep tabs on the HVAC and power consumption. The app is well polished and provides all the information and control you would expect with this device
Mohammed Ben-Hussain –
Great product
Worth the value, high quality and reliable
Miguel A Fornerin Cedeno –
Excelente!
Excelente!
CuriousJoe –
Pro level current meter at a bargain price!
Fantastic current meter! The bonus is built in Ethernet! Small size will fit in tight spaces and easy install.Great function, except for some reason data download is not working right. There is also connection point for 1 more CT, but last I checked it is not sold separately. AND I wish there was short piece of DIN rail in box.
Dave –
Works great when integrated with HomeAssistant
Great product generally, although there are a couple issues with the REST API if you’re trying to write your own code to control it. Bad SSL certificate for https, and it rejects https requests anyway with a 443 error, yet it also does a strange redirect to https when you call http on port 80. I tried updating the firmware but issue remains. Integrated with HomeAssistant and called that API instead, which works great. Would be 5 stars if not for the odd issues with restful calls.
Xoom –
Works wonderful in Home Assistant
Works great with Homa Assistant. Have 4 of these 2 are on wired ethernet and 2 on Wi-Fi. Not 100 percent accurate but very close. Wish there was a offset or calibration process. Note the voltage input is very small and somewhat difficult to connect.Home Assistant immediately identified the devices on the LAN and came online without issues. Entities include power W, Aparent power va, current A, Power Factor, Total active energy kWh, Total active return energy kWh, Frequency Hz, and Voltage. Also can reboot the device from Home Assistant, control the relay dry contact and update the firmware in the HA interface.
eric –
Quality
Good quality product
Pablo –
Excelente
El medidor de energía funciona perfectamente y lo integre más fácilmente aún a home assistant.La conexión a la red wifi funciona muy bien inclusive dentro del panel eléctrico que es de acero.
GUILLEM FORTET –
Fácil instalación en el cuadro eléctrico, viene con 2 pinzas amperimétricas. Yo no tengo mas productos de Shelly, así que no puedo opinar sobre la integración domótica. Lo uso para el monitoreo de las placas solares. La app te permite monitorizar en tiempo real el consumo de energía de la vivienda, la producción de las placas solares y el volcado/consumo de red o baterías. Gráficas diarias, por mes, año, etc. Funciona con la wifi de casa y te da información suficiente y bastante exacta sobre tu consumo energético en cualquier momento y lugar. Solo encuentro a faltar en la app, disponible en apps de otos medidores (y otros precios), el diferenciar el consumo por electrodoméstico. De momento sin problemas de funcionamiento y satisfecho con la comprs.
Daniel Gonzalez –
Funciona perfecto y es super útil para el monitoreo de todo el cuadro eléctrico mas 2 cargas. Tambien lo he usado para monitorear motores trifasicos, es genial!
Marc Ricart Rius –
Works great and integrates easy with HA
BOUTET –
il faudrait un paramètre pour définir TETRAPOLAIRE avec Neutre et TRIPHASE avec neutre à la terre tension entre phase et tension entre phase et neutre…
“ryanian” –
Item worked as described.