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Shelly Pro EM-50

Shelly Pro EM-50

Regular price $227.99
Regular price Sale price $227.99
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Wi-Fi Energy Meter with Contactor Control

Elevate your energy monitoring game with the Shelly Pro EM-50! This versatile meter offers two channels and a DIN rail mount for easy installation. Plus, the built-in switch with dry contacts allows for seamless contactor control. Enhance your energy efficiency and control with Shelly Pro EM-50!

  • LAN, Wi-Fi and Bluetooth connection for high security and reliability
  • Reports accumulated energy, as well as instantaneous voltage, current, active and apparent power per phase in real time
  • Power metering - two independent measurement channels on the same phase
  • 4 Quadrant measurement with optical pulse indication of energy usage
  • Can be used with contactors for bigger loads
  • Accuracy Class B (IEC 62053-21)
  • Photovoltaic ready
  • Stores data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals.
  • No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Home Assistant, or your preferred automation system.
  • Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS and custom certificates & Modbus TCP protocol

*Package includes 2 pieces of 50 A Current Transformers

Take control of your energy usage with Shelly Pro EM-50. This DIN-mountable 1-Phase Energy Meter boasts an impressive 1% accuracy for accurate measurement and control of all your home appliances and office equipment. With 60 days of on-device historical data, you can easily track and optimize your energy consumption. Plus, its scripting capabilities offer advanced monitoring and scene execution.

Size (HxWxD): 94x19x69 ±0.5 mm
Weight: 63 ±1 g
Mounting: DIN rail
Screw terminals max torque: 0.4 Nm / 4.43 lbin
Conductor cross section: 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded and bootlace lugs)
Conductor stripped length: 6 to 7 mm
Shell material: Plastic
Color: White
Ambient temperature: -20 °C to 40 °C
Humidity: 30 % to 70 % RH
Max. altitude: 2000 m
Power supply voltage AC: 110 - 240 V, 50/60 Hz
Power supply voltage DC: N/A
Power consumption: < 3 W
Output circuits ratings
Max switching voltage AC: 240 V
Max switching voltage DC: N/A
Max switching current: 2 A
Internal-temperature sensor: Yes
Voltmeter (RMS): 100 - 260 V
Voltmeters accuracy: ±1 %
Ammeters (RMS via CT): 0 - 50 A
Ammeters accuracy: ±1 % (5 - 50 A), ±2 % (0 - 5 A)
Power and energy meters: Active and apparent power
Active and apparent energy
Power factor
No load threshold: 30 VA per phase
Measurement data storage: At least 60 days of 1 min data resolution
Data export: CSV for PQ recorded values
JSON format export through RPC
RF band: 2400 - 2495 MHz
Max. RF power: <20 dBm
Wi-Fi protocol: 802.11 b/g/n
Wi-Fi Range: Up to 30 m indoors and 50 m outdoors
(Depends on local conditions)
Bluetooth Protocol: 4,2
Bluetooth Range: Up to 10 m indoors and 30 m outdoors
(Depends on local conditions)
Flash: 16 MB
Webhooks (URL actions): 20 with 5 URLs per hook
Scripting: Yes
CoAP: No


Australia and New Zealand Safety Standard (AS/NZS) compliant, SDoC available on request.

Shelly Smart Control App Google Play 

Shelly Cloud App Google Play App Store Download

Shelly Smart Control App Apple

Shelly Cloud App Apple App Store Download

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