---
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"
brand: "shelly"
price: "€ 63.73"
currency: EUR
in_stock: true
reviews_count: 7
category: "Shelly"
url: https://www.desertcart.sk/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em
store_origin: SK
region: Slovakia
---

# 3-phase energy monitoring app-based remote management 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

**Brand:** shelly
**Price:** € 63.73
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower your energy ecosystem with smart precision and effortless control!

## 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 by shelly
- **How much does it cost?** € 63.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em)

## Best For

- shelly enthusiasts

## Why This Product

- Trusted shelly brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hub-Free Smart Control:** Manage your energy flow remotely via iOS/Android app—no extra hub needed 📱
- • **Automated Load Shedding:** Save on energy bills by automatically balancing consumption with generation ⚙️
- • **Precision 3-Phase Monitoring:** Track your solar & wind energy output with pinpoint accuracy ⚡
- • **Future-Proof Energy Management:** Optimize EV charging, water heating, and more with real-time data-driven automation 🔄
- • **Seamless Dry Contact Integration:** Effortlessly control contactors and heavy appliances without rewiring 🔌

## Overview

The Shelly Pro 3EM Switch Add-On is a DIN rail-mounted, electrically isolated dry contact switch designed to extend the capabilities of the Shelly Pro 3EM energy meter. It enables precise 3-phase energy monitoring and smart automation for solar panels, wind turbines, and heavy electrical loads. With no hub required, users can remotely control and automate energy consumption via the Shelly Smart Control app on iOS and Android. Ideal for load shedding and PV system balancing, it supports efficient energy use and cost savings backed by a 5-year warranty and professional customer support.

## Description

Product description Connectivity Enhance your Shelly Pro 3EM with the Switch Add-On for seamless control. Easily monitor and manage up to three independent circuits, ensuring efficient energy use and improved device connectivity. Connectivity Enhance your Shelly Pro 3EM with the Switch Add-On for seamless control. Easily monitor and manage up to three independent circuits, ensuring efficient energy use and improved device connectivity. Energy Metering Shelly Pro 3EM Switch Add-On Energy Metering offers precise three-phase energy monitoring. Easy to install, it supports real-time data, remote control, and integration with home automation systems. Energy Metering Shelly Pro 3EM Switch Add-On Energy Metering offers precise three-phase energy monitoring. Easy to install, it supports real-time data, remote control, and integration with home automation systems. Power Supply Add reliable power to your Shelly Pro 3EM with this Switch Add-On Power Supply. Ensure consistent performance and monitor your energy usage effortlessly. Compact, efficient, and easy! Power Supply Add reliable power to your Shelly Pro 3EM with this Switch Add-On Power Supply. Ensure consistent performance and monitor your energy usage effortlessly. Compact, efficient, and easy! Neutral Wire Upgrade your Shelly Pro 3EM with the Switch Add-On for precise control and enhanced functionality. Compatible with neutral wires, it ensures stable, reliable operation for your smart home setup. Neutral Wire Upgrade your Shelly Pro 3EM with the Switch Add-On for precise control and enhanced functionality. Compatible with neutral wires, it ensures stable, reliable operation for your smart home setup. Dry Contacts Dry Contacts enable connection to devices like traditional switches or sensors, enhancing home automation without supplying voltage through the contacts. Dry Contacts Dry Contacts enable connection to devices like traditional switches or sensors, enhancing home automation without supplying voltage through the contacts. Lightning Control Integrate the Shelly Pro 3EM with a Shelly Pro 3EM Switch Add-on for lighting control by combining its monitoring capabilities with a compatible switching device for effective lighting management. Lightning Control Integrate the Shelly Pro 3EM with a Shelly Pro 3EM Switch Add-on for lighting control by combining its monitoring capabilities with a compatible switching device for effective lighting management. Switch Expansion Load Shedding Weather-Based Control PV Systems Balancing Shelly Pro 3EM Switch Add-on is created to provide switch functionality for the Shelly Pro 3EM device. It contains dry contact relay that can commutate up to 2A for controlling a contactor.​ Track solar and wind energy with Shelly Pro 3EM Add-on. Control consumption, monitor real-time energy data, and auto-switch off non-essential appliances for energy savings.​ Enhance Shelly Pro 3EM with the Add-on for weather-driven energy optimization. Script appliance control based on real-time weather updates. For instance, auto-adjust heating for sunny days.​ Shelly Pro 3EM Add-On optimizes excess PV energy by automatically activating appliances like water heaters or EV charging stations. Maximize solar energy use and reduce grid dependency.​ Shelly Comparison Table Pro 3EM Switch Add-On Shelly Pro 3EM (120A) Shelly Pro 3EM (400A) Shelly 3EM

Review: Perfect for my application - Snaps on, super clean. I used it to control the coil of a larger contactor.
Review: Works great simple install - Works great and is one of the only that offers local API. A function missed by others taking advance of your data

## 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 |
|---------------|-------|
| ASIN | B0C718B37C |
| Best Sellers Rank | #26,687 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Industrial Power Meters |
| Brand | Shelly |
| Brand Name | Shelly |
| Circuit Type | 1-way |
| Color | white |
| Compatible Devices | Shelly Pro 3EM |
| Connector Type | Plug In |
| Contact Material | Stainless Steel |
| Contact Type | Normally Open |
| Control Method | App, Remote |
| Control Type | app, remote |
| Current Rating | 1 Amps |
| Customer Reviews | 4.6 out of 5 stars 67 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Global Trade Identification Number | 03800235268131 |
| Included Components | 1 pack |
| International Protection Rating | IP00 |
| Item Dimensions | 3.7 x 0.75 x 2.72 inches |
| Item Weight | 20 Grams |
| Manufacturer | Shelly Europe |
| Material Type | Stainless Steel |
| Model | 3800235268131 |
| Mounting Type | DIN Rail Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 110 Volts (AC) |
| Operation Mode | ON-OFF-ON |
| Part Number | Shelly_Pro_Add |
| Smart Home Compatibility | Smart Home Compatible |
| Specification Met | UL |
| Switch Type | Push Button |
| Terminal | Screw |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 105 Degrees Fahrenheit |
| Warranty Description | 5 year manufacturer |
| Wattage | 1 |

## 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/81iq0IO6iOL.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/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 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/91KqnU4FLEL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for my application
*by A***R on May 1, 2026*

Snaps on, super clean. I used it to control the coil of a larger contactor.

### ⭐⭐⭐⭐⭐ Works great simple install
*by L***E on November 29, 2024*

Works great and is one of the only that offers local API. A function missed by others taking advance of your data

### ⭐⭐⭐⭐⭐ Toll
*by F***R on May 23, 2026*

Tut was es soll, misst meine Leistung, rechnet sogar Blind und Scheinleistung aus automatisch. Sehr nice 👍

## 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.sk/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em](https://www.desertcart.sk/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-05-27*