Shelly Pro EM-50 energy meter incl. 2 CTs

Shelly Pro EM-50, single-phase energy meter for DIN rail mounting, with integrated relay control switch.

Control and monitor the consumption of household appliances, electrical circuits, and office equipment. Wi-Fi energy meter with contactor control.

• LAN, Wi-Fi and Bluetooth connectivity for high security and reliability
  
• Displays the accumulated energy, as well as the instantaneous values ​​of voltage, current, active and apparent power per phase in real time.
  
• Power measurement - two independent measurement channels for the same phase
  
• 4-quadrant measurement with optical pulse display of energy consumption
  
• Measurement accuracy Class B (IEC 62053-21)
  
• Compatible with photovoltaic energy
  
• Stores data in non-volatile memory that can be retrieved at 1-minute intervals for up to 60 days.
  
• No hub needed! Easy control via the Shelly Smart Control app, most platforms and protocols, and voice assistants. Use it with Alexa, Home Assistant, or your favorite automation system.
  
• Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS, custom certificates, and the Modbus TCP protocol.
  
• The package contains two 50 A current transformers.

With an active energy metering accuracy of 1%, the Shelly Pro EM-50 can be used to monitor consumption and control any household appliance, electrical circuit, or office equipment. The device features 60 days of data history at 1-minute intervals. Furthermore, its scripting capabilities allow for the execution of complex scenarios and offer more comprehensive monitoring options.

• Wi-Fi, LAN, and Bluetooth connectivity - Simultaneous use of Ethernet and Wi-Fi. Support for MQTT, incoming and outgoing WebSockets, UDP, and mTLS.
  
• Accuracy class B (active energy) - The Shelly Pro EM-50 has a measurement accuracy of 1%.
  
• Integrated switch - 2A dry contact switch for contactor control
  
• MODBUS support - Enables quick and easy implementation into existing industrial systems.
  
• Power Measurement - Monitors two independent channels on the same phase
  
• Scripting - The Shelly Pro EM-50 fully supports mjS scripting, allowing you to create additional features.

Perfect for SMB owners - If you own a small or medium-sized business, you likely suffer from excessive energy consumption. Some machines and appliances are constantly running. With the Shelly PRO EM-50, you can measure and reduce consumption with the utmost precision by switching off appliances like water dispensers, laminators, and lights at night. The smart device can also be used for preventative measurements by monitoring abnormal behavior of HVAC systems, air compressors, refrigerators, and other appliances.

If you have a photovoltaic (PV) system at home, the Shelly PRO EM-50 can help you meter both grid power and imported energy from renewable sources. It also features configurable load control, allowing you to redirect excess renewable energy to electronic devices in your home and optimize your energy consumption. For example, you can use the Shelly PRO EM-50 to charge your car or appliances when your PV system is producing excess energy.

Full compatibility - Shelly devices are compatible with Alexa, Google Home, Android, and iOS. Together with your voice assistant, you can control Shelly devices with your voice!

Shelley Smart Control - An app to monitor your rooms, energy consumption, and expenses. Personalize your dashboards, receive detailed consumption reports, and track your energy bill.

• Dimensions (HxWxD): 94x19x69 ±0.5 mm
  
• Weight: 63 ±1 g
  
• Mounting: DIN rail
  
• Max. tightening torque screw clamps: 0.4 Nm / 4.43 lbin
  
• Conductor cross-section: 0.5 to 2.5 mm² / 20 to 14 AWG (solid, flexible and with ferrules)
  
• Stripped conductor length: 6 to 7 mm / 0.24 to 0.28 inch
  
• Housing material: Plastic
  
• Color: White
  
• Ambient temperature: -20 °C to 40 °C
  
• Humidity: 30% to 70% RH
  
• Max. altitude: 2000 m
  
• AC power supply voltage: 110-240 V, 50/60 Hz
  
• DC supply voltage: n/a
  
• Device power consumption: < 3 W
  
• Max. switching voltage AC: 240 V
  
• Max. switching voltage DC: n/a
  
• Max. switching current: 2 A
  
• Internal temperature sensor: Yes
  
• Voltage meter (RMS): 100 - 260 V
  
• Voltage meter accuracy: ±1%
  
• Current meters (RMS via CT): 0 - 50 A
  
• Accuracy of current meters: ±1% (5 - 50 A), ±2% (0 - 5 A)
  
• Power and energy meters: Active and apparent power, Active and apparent power, Power factor
  
• No-load threshold: 30 VA per phase
  
• Measurement data storage: Minimum 60 days with a data interval of 1 minute
  
• Data export: CSV for registered PQ values, export in JSON format via RPC
  
• RF band: 2400 - 2495 MHz
  
• Max. RF power: <20 dBm
  
• WLAN protocol: 802.11 b/g/n
  
• Wi-Fi 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)
  
• CPU: ESP32-D0WDQ6
  
• Flash: 16 MB
  
• Webhooks (URL actions): 20 with 5 URLs per hook
  
• Scripting: Yes
  
• MQTT: Yes
  
• CoAP: No