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Shelly Pro EM-50. Smart Din Rail 2-Channel, Single Phase Energy Meter. Wi-Fi, LAN, and Bluetooth connection

Shelly Pro EM-50. Smart Din Rail 2-Channel, Single Phase Energy Meter. Wi-Fi, LAN, and Bluetooth connection

SKU:Pro EM-50

Regular price $74.90 USD
Regular price $74.90 USD Sale price $74.90 USD
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Introducing the Shelly Pro EM-50, a DIN rail mountable two-channel, single-phase energy meter. It has an integrated switch with dry contacts for contactor control.

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.

Characteristics:

  • 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
Notes:

Package includes 2 pieces of 50A Current Transformers

View full details
Functionalities

Functionalities

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

Shelly App
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

Shelly App
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms

Wiring Diagram

Wiring Diagram
Legend
Specifications

Physical
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
Color:White
Environmental
Ambient temperature:-20 °C to 40 °C / -5 °F to 105 °F
Humidity:30 % to 70 % RH
Max. altitude:2000 m / 6562 ft
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 / 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)
MCU
CPU:ESP32-D0WDQ6
Flash:16 MB
Firmware capabilities
Webhooks (URL actions):20 with 5 URLs per hook
Scripting:Yes
MQTT:Yes
CoAP:No

Pro EM50 / Pro 3EM Comparison

 

Shelly Pro EM-50

Shelly Pro 3EM

AC voltage per Channel

100-260 volts 50/60Hz

100-260 volts 50/60Hz

Phases Supported

Single (same phase only)

Single, Split Single, Two, Three

Number of CTs

2

3

Max Amps/Channel

50

120 or 400

Contactor Control

Yes

Requires Pro 3EM Switch Add-on

Contactor AC

100-260 volts 50/60Hz

100-260 volts 50/60Hz

Contactor DC

N/A

Up to 30 Volts

Contactor Amperage

2 amps

2 amps


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Warranty

  • USA Pro Market Manufacturer Warranty: Lifetime manufacturer warranty (only if installed by a professional within USA) when purchased at Digital Bay Tech.

  • Retail Standard Manufacturer Warranty (included in purchase price): 2, 3 or 5 years manufacturer warranty covers only the hardware (corpus, mechanics, and display, if any) and does not cover consumables (battery) and accessories insofar as these are subject to exhaustion (decrease of their useful life) depending on the intensity of their use. Device malfunctions are only covered when device is used as described conditions within user manual (max loads, proper installation, etc.). Please check refund policy for further details.
  • Gen 1: 2 years.
  • Plus, Gen 3: 3 years.
  • Pro Line: 5 years.

Special Notes

  • Do It Yourself: Devices are technically user-installable in many locales, nevertheless consulting a licensed electrician to install shelly components is recommended; in addition to being licensed to work with electrical devices, they are also familiar with local building codes and regulations to keep your safety.
  • Manufacturer's Safety note: Each Shelly device generates heat under load. Do not combine two or more Shelly devices stacked on top of or beside each other in a confined space. There must be a minimum distance of 0.4 inch / 1 cm between them to allow for airflow.