Shelly Pro EM 2x50A

  • €83,99
    Unit price per 
Tax included. Shipping calculated at checkout.

Wi-Fi Energy Meter with Contactor Control

Shelly Pro EM-50 is a DIN rail mountable two-channel, single-phase energy meter. It has an integrated switch with dry contacts for contactor control.

  • 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

Size (HxWxD):94x19x69 ±0.5 mm / 3.70x0.75x2.71 ±0.02 in
Weight:63 ±1 g / 2.22 ±0.05 oz
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 / 0.24 to 0.28 in
Shell material:Plastic
Ambient temperature:-20 °C to 40 °C / -5 °F to 105 °F
Humidity:30 % to 70 % RH
Max. altitude:2000 m / 6562 ft
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
Sensors, meters
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 / 100 ft indoors and 50 m / 160 ft outdoors
(Depends on local conditions)
Bluetooth Protocol:4,2
Bluetooth Range:Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
(Depends on local conditions)
Flash:16 MB
Firmware capabilities
Webhooks (URL actions):20 with 5 URLs per hook

Warranty and Support:
Warranty inquiries and troubleshooting via the Shelly-Support-Ticketsystem