Is This Right for Me?

Type: 3-phase energy meter, high current
Accuracy: 1% active energy
Connectivity: Wi-Fi, Bluetooth, LAN
Data: 60 days on-device, MQTT, Modbus
Two-way: Used and produced energy
Mounting: DIN rail

Product Details

The Shelly Pro 3EM-400 is the high-current member of the Pro 3EM family, designed for larger buildings and main incomers where loads run far above a typical home. It measures voltage, current and power on each phase with 1% accuracy and turns the main panel into a live energy dashboard.

Like the rest of the family it connects over Wi-Fi, Bluetooth and wired LAN, stores 60 days of history on the device, and supports MQTT and Modbus for integration with dashboards and building management. Two-way measurement makes it suitable for solar and generation sites.

For commercial panels and high-current mains, the Pro 3EM-400 delivers the same detailed monitoring as the rest of the range at a larger scale.

What You Get

Commercial scale
Built for high-current mains and larger buildings.
1% accuracy
Dependable per-phase measurement.
Solar ready
Tracks used and produced energy.
MQTT and Modbus
Integrates with dashboards and BMS.
On-device history
60 days of per-phase data.

A Closer Look

Built for big supplies

Monitors high-current three-phase installations.

Built for big supplies

Per-phase accuracy

1% active-energy accuracy across all phases.

Per-phase accuracy

Wired or wireless

Wi-Fi, Bluetooth and LAN.

Wired or wireless

Dashboards and solar

MQTT, Modbus and two-way energy.

Works With

Shelly app (iOS & Android)
Works
Home Assistant
Works
MQTT
Works
Modbus TCP
Works
Grafana / energy dashboards
Works

What's in the Box

1x Shelly Pro 3EM-400
3x current clamps
1x User guide

Delivery & Pickup

Standard Delivery
All Lebanon governorates - Greater Beirut usually next day; Tripoli, Jbeil, Saida, Tyre, Zahle, Akkar and the rest within 2–4 working days.
4 $ · Free over 50 $
Express Delivery
Faster shipping - usually within 24 hours of order confirmation (Greater Beirut & Metn). Same-day not guaranteed.
6 $ flat
Pickup - Dekwaneh
Collect from our Dekwaneh store. Weekdays 10am–5pm, Sat 10am–1pm.
3 $ · Free over 30 $

Warranty & Support

6-month Local Warranty
Covers defects in materials & workmanship. Handled here in Lebanon.
WhatsApp Support - Always On
Can't set it up? Message us. We reply within minutes, not days.
14-day Exchange - Unopened Items
The item must be unopened and in its original packaging. Exchange it for a product of equal or higher value - we do not give cash refunds. Opened items are covered by the warranty if there is a factory defect.
Free Setup Call
If you get stuck, we'll walk you through the setup on a free WhatsApp call.

Frequently Asked Questions

Who is this for? ›
Larger buildings and high-current mains where loads exceed what the 120A version covers.
Does it work with solar? ›
Yes, it measures used and produced energy per phase.
Can it integrate with dashboards? ›
Yes, through MQTT and Modbus, plus the Shelly app.
Does it store history? ›
Yes, 60 days per phase on the device.
Is it accurate? ›
Yes, 1% active-energy accuracy.

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