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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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Price
$81.49$81.49
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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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✔
✔
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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.
$81.49