We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
DIN-rail mounted grey box with terminal blocks and display

Shelly

Shelly Pro 3EM 120A 3-Phase Energy Meter Relay

SKU CH-6DNG-JVPEH

A DIN-rail 3-phase energy meter with 120 A capacity, Wi-Fi, Bluetooth and LAN connectivity, 1 % accuracy, dual-direction monitoring, MODBUS support, 60-day history and local automation without a hub

  • Parts2 Years
  • DIN-rail mountable 3-phase energy meter with Wi-Fi, Bluetooth 3, and LAN connectivity
  • 1% active energy measurement accuracy for tracking appliance, circuit, and office equipment consumption
  • Monitors energy consumption and production across three phases for complete energy overview
  • Built-in mTLS encryption for secure cloud communication without complex VPNs
  • Tracks solar or wind energy production with 60 days of historical data

Three-phase energy meter

The Shelly Pro 3EM is a DIN-rail mountable smart energy meter that monitors electricity consumption and production across three phases. It connects via Wi-Fi, Bluetooth 3, and LAN without requiring a separate hub. Homeowners, facility managers, and installers use it to track real-time usage, solar or wind generation, and overall power quality in residential, commercial, or light-industrial settings.

120 A per phase current rating

Each of the three channels accepts up to 120 A, making the meter suitable for standard three-phase supplies in homes, offices, and small workshops. The device delivers 1 % active energy measurement accuracy and reports voltage, current, active and reactive power, and power factor. It stores up to 60 days of historical data and can stream readings as fast as every 100 ms for detailed analysis.

DIN-rail mounting with cloud or local control

The unit clips onto a standard DIN rail inside a distribution board, so a qualified electrician should perform the wiring. Once powered, it joins the local network for direct device-to-device automation or connects securely to cloud services using built-in mTLS encryption. Buyers who need individual circuit monitoring below the main incoming supply or who require a hub-dependent ecosystem should look elsewhere.

Highlights

  • DIN-rail mountable 3-phase energy meter with Wi-Fi, Bluetooth 3, and LAN connectivity
  • 1% active energy measurement accuracy for tracking appliance, circuit, and office equipment consumption
  • Monitors energy consumption and production across three phases for complete energy overview
  • Built-in mTLS encryption for secure cloud communication without complex VPNs
  • Tracks solar or wind energy production with 60 days of historical data

Specifications

BrandShelly
Parts2 Years

Questions about this item

What does the 120 A rating mean once the meter is installed in a panel?

The 120 A rating is the maximum current each phase can measure continuously, letting you track heavy loads such as EV chargers or three-phase machinery without external CTs.

What does the Bluetooth 3 connection actually let me do?

Bluetooth 3 provides short-range pairing for initial setup and local app control when the meter is commissioned on site.

How does the unit mount in a standard electrical enclosure?

It is designed for DIN-rail mounting inside a panel, taking up a compact module width for three-phase metering.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.