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Wi-Fi Energy Meter with Contactor Control Shelly Pro EM 50A - SHELLY

SHELLYPROEM50A

3800235268148

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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.

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Shelly Pro EM-50 is a DIN rail mountable two-channel, single-phase energy meter. Enhanced with all the gen2 firmware flexibility and LAN connectivity, it provides professional integrators with additional options for end-customer solutions. It can work standalone in a local LAN and/or Wi-Fi network, or it can also be operated through cloud home automation services through MQTT, HTTP, and WebSocket. All inbound connections support TLS.

Shelly Pro EM-50 reports accumulated energy as well as instantaneous voltage, current, active, and apparent power per phase in real time. It stores data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals.

Your Smart Solution for Accurate Energy Monitoring and Control

Shelly Pro EM-50 is a DIN-mountable 1-Phase Energy Meter with an integrated switch for contactor control. With active energy measurement accuracy of 1%, Shelly Pro ЕМ-50 can be used to monitor the consumption of and control any home appliances, electric circuits, and office equipment. It features 60 days of on-device historical data with a 1-minute resolution. Additionally, its scripting functionalities allow for the execution of complex scenes and provide broader monitoring abilities.

Wi-Fi, LAN and Bluetooth connectivity

Simultaneous Ethernet and Wi-Fi usage. MQTT, inbound and outbound WebSocket, UDP, mTLS support.

Accuracy class B (active energy)

Shelly Pro EM-50 has a measurement accuracy of 1%.

MODBUS support

Allows for easy and fast deployment in existing industrial installations.

Power measurement

Monitors two independent channels on the same phase.

Integrated switch

2 A dry contacts switch for contactor control.

Scripting

Shelly Pro EM-50 fully supports mjS scripting, allowing you to create further features and functionalities.

Note : Package includes 2 pieces of 50 A Current Transformers

FONCTIONS :

  • 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

TECHNICAL SPECIFICATIONS :

  • PHYSICAL
  • Size (HxWxD): 94x19x69 ±0.5 mm
  • Weight: 63 ±1 g
  • Mounting: DIN rail
  • Screw terminals max torque: 0.4 Nm
  • 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
  • ENVIRONMENTAL
  • Ambient temperature: -20 °C to 40 °C
  • Humidity: 30 % to 70 % RH
  • ELECTRICAL
  • 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
  • RADIO
  • 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 (Depends on local conditions)
  • Bluetooth Protocol: 4,2
  • Bluetooth Range: Up to 10 m / 33 ft indoors and 30 m (Depends on local conditions)
  • MCU
  • CPU: ESP32-D0WDQ6
  • Flash: 16 MB
  • FIRMWARE CAPABILITIES
  • Webhooks (URL actions): 20 with 5 URLs per hook
  • Scripting: Yes
  • MQTT: Yes
  • CoAP: No