---
product_id: 604996448
title: "Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines"
price: "VT10919"
currency: VUV
in_stock: true
reviews_count: 8
url: https://www.desertcart.vu/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em
store_origin: VU
region: Vanuatu
---

# 3-phase energy monitoring Ethernet connectivity Dry contact switch control Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines

**Price:** VT10919
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower your energy ecosystem with smart control and zero compromise!

## Quick Answers

- **What is this?** Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines
- **How much does it cost?** VT10919 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Industrial Design:** Compact DIN rail mount fits tight spaces with professional-grade reliability.
- • **Real-Time Remote Management:** Control and customize your system anytime via iOS/Android app.
- • **Smart Load Shedding Automation:** Automatically optimize energy use to save costs and reduce waste.
- • **Seamless Dry Contact Integration:** Effortlessly control contactors and heavy appliances without extra hubs.
- • **Precision 3-Phase Energy Tracking:** Monitor your solar & wind energy flow with pinpoint accuracy.

## Overview

The Shelly Pro 3EM Switch Add-On is a compact, DIN rail-mounted dry contact switch designed to extend the capabilities of the Shelly Pro 3EM energy meter. It enables precise control of contactors and heavy electrical loads, supports real-time energy monitoring from solar panels and wind turbines, and automates load shedding to optimize energy consumption. With built-in Ethernet and no hub required, it integrates seamlessly into smart home or industrial setups, managed remotely via the Shelly app on iOS and Android. Backed by a 5-year warranty and professional support, it’s a pro-level solution for energy-conscious professionals.

## Description

desertcart.com: Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines : Industrial & Scientific

Review: Pro level current meter at a bargain price! - Fantastic current meter! The bonus is built in Ethernet! Small size will fit in tight spaces and easy install. Great function, except for some reason data download is not working right. There is also connection point for 1 more CT, but last I checked it is not sold separately. AND I wish there was short piece of DIN rail in box.
Review: Quality - Good quality product

## Features

- The Shelly Pro 3EM Switch Add-On is an add-on for Shelly Pro 3EM. An electrically isolated switch that extends the functions of your Shelly Pro 3EM device. With this add-on, you can easily control contactors and other electrical devices, giving you more flexibility and control over your consumption.
- Load shedding - Keep track of how much energy your solar panels and wind turbines are generating and save effortlessly by controlling your consumption with the Shelly Pro 3EM add-on. Connect the Shelly Pro add-on to your devices and use Shelly Pro 3EM's real-time information on how much energy has been generated and consumed. When you need to save energy.
- PV system balancing - If your PV system is producing more energy than your home is consuming, the Shelly Pro 3EM add-on can automatically activate devices to use it. For example, you can set it to turn on your water heater, electric vehicle charging station or other energy-intensive appliances.
- Shelly Customer Service - Shelly is one of the fastest-growing IoT brands in the world with devices, providing solutions for the automation of private homes, buildings and businesses. We provide our customers with professional support and a 5 years device warranty.
- Shelly Smart Control App will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 2,857 Reviews |

## Images

![Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines - Image 1](https://m.media-amazon.com/images/I/714nLkRns4L.jpg)
![Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines - Image 2](https://m.media-amazon.com/images/I/71BO1pq3ehL.jpg)
![Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines - Image 3](https://m.media-amazon.com/images/I/71NbO6--KXL.jpg)
![Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines - Image 4](https://m.media-amazon.com/images/I/8190vflWwTL.jpg)
![Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines - Image 5](https://m.media-amazon.com/images/I/81iq0IO6iOL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pro level current meter at a bargain price!
*by C***E on July 12, 2025*

Fantastic current meter! The bonus is built in Ethernet! Small size will fit in tight spaces and easy install. Great function, except for some reason data download is not working right. There is also connection point for 1 more CT, but last I checked it is not sold separately. AND I wish there was short piece of DIN rail in box.

### ⭐⭐⭐⭐⭐ Quality
*by E***C on December 23, 2025*

Good quality product

### ⭐⭐⭐⭐⭐ Works wonderful in Home Assistant
*by X***M on August 2, 2025*

Works great with Homa Assistant. Have 4 of these 2 are on wired ethernet and 2 on Wi-Fi. Not 100 percent accurate but very close. Wish there was a offset or calibration process. Note the voltage input is very small and somewhat difficult to connect. Home Assistant immediately identified the devices on the LAN and came online without issues. Entities include power W, Aparent power va, current A, Power Factor, Total active energy kWh, Total active return energy kWh, Frequency Hz, and Voltage. Also can reboot the device from Home Assistant, control the relay dry contact and update the firmware in the HA interface.

## Frequently Bought Together

- Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android app | No Hub Required | Solar Panels | Wind Turbines
- Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring
- Shelly H&T Gen3 White | Wi-Fi & Bluetooth Smart Temperature & Humidity Sensor with Remote App Control | Smart Scenes | LCD Display

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**Shop now:** [https://www.desertcart.vu/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em](https://www.desertcart.vu/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-12*