---
product_id: 561038718
title: "Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required"
brand: "shelly"
price: "347.86 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Shelly"
url: https://www.desertcart.tn/products/561038718-pro-3em-switch-add-on-expand-the-capabilities-of-pro
store_origin: TN
region: Tunisia
---

# 2A dry contact switching App & voice control no hub DIN rail mount ready Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required

**Brand:** shelly
**Price:** 347.86 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your smart home power game with effortless control and zero compromise!

## Quick Answers

- **What is this?** Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required by shelly
- **How much does it cost?** 347.86 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/561038718-pro-3em-switch-add-on-expand-the-capabilities-of-pro)

## 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 Automation:** Control remotely via iOS/Android app or voice assistants like Alexa & Google Home—no extra hub needed.
- • **Custom Scheduling & Scenes:** Set personalized timers and automation scenes to optimize energy use and lifestyle convenience.
- • **Plug & Play DIN Rail Mount:** Compact design installs neatly alongside your Shelly Pro 3EM for streamlined integration.
- • **Solar & Battery Optimization:** Maximize renewable energy use by automating appliances based on real-time energy data and weather.
- • **Seamless Load Control Expansion:** Effortlessly automate load shedding and appliance management with dry contact switching up to 2A.

## Overview

The Shelly Pro 3EM Switch Add-On enhances your Shelly Pro 3EM by adding dry contact switching capabilities rated up to 2A, enabling advanced load control, appliance automation, and solar energy optimization. It mounts easily on a DIN rail, supports app and voice control without requiring a hub, and allows custom scheduling for smarter energy management in professional-grade home automation setups.

## Description

From the manufacturer 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. 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. 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.​ Technical Information Shelly Pro Series Comparison Table Shelly Pro 3EM Add-On Shelly Pro 3EM (120А) Shelly Pro 3EM (400А) Shelly Pro EM 50

Review: Toll - Tut was es soll, misst meine Leistung, rechnet sogar Blind und Scheinleistung aus automatisch. Sehr nice 👍
Review: Produit conforme - .

## Features

- 𝗦𝗺𝗮𝗿𝘁 𝗟𝗼𝗮𝗱 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 𝗘𝘅𝗽𝗮𝗻𝘀𝗶𝗼𝗻: Adds switching capabilities to the Shelly Pro 3EM for automating load shedding, appliance disconnection, and solar/battery management
- 𝗗𝗿𝘆 𝗖𝗼𝗻𝘁𝗮𝗰𝘁 𝗦𝘄𝗶𝘁𝗰𝗵𝗶𝗻𝗴: Controls external loads with dry contacts rated at up to 240 V AC or 30 V DC, and a maximum current of 2 A
- 𝗗𝗜𝗡-𝗥𝗮𝗶𝗹 𝗠𝗼𝘂𝗻𝘁𝗶𝗻𝗴: Installs next to the Shelly Pro 3EM and operates on 3.3 V or 12 V supplied directly by the device
- 𝗔𝗽𝗽 & 𝗩𝗼𝗶𝗰𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Control from anywhere using the Shelly Smart Control app or voice assistants like Alexa, Google Home, or SmartThings - 𝗻𝗼 𝗵𝘂𝗯 𝗿𝗲𝗾𝘂𝗶𝗿𝗲𝗱
- 𝗦𝗰𝗵𝗲𝗱𝘂𝗹𝗶𝗻𝗴 & 𝗧𝗶𝗺𝗲𝗿𝘀: Set up timers and personalized schedules per channel or create scenes for full-home automation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C718B37C |
| Best Sellers Rank | 36,142 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 3,012 in Components & Replacement Parts |
| Brand | Shelly |
| Connector Type | DIN |
| Connector type | DIN |
| Contact Material | Steel |
| Contact Type | Normally Open |
| Contact material | Steel |
| Contact type | Normally Open |
| Current Rating | 2 Amps |
| Current rating | 2 Amps |
| Customer Reviews | 4.6 out of 5 stars 78 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Global Trade Identification Number | 03800235268131 |
| Included Components | 1 pack |
| Item Weight | 20 Grams |
| Lower Temperature Rating | 20 Degrees Celsius |
| Manufacturer | Shelly Europe |
| Manufacturer Part Number | Shelly_Pro_Add |
| Model Number | Shelly_Pro_Add |
| Mounting Type | DIN Rail Mount |
| Mounting type | DIN Rail Mount |
| Operation Mode | ON-OFF |
| Product Warranty | 5. |
| Smart Home Compatibility | Smart Home Compatible |
| Specification Met | RoHS |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 40 Degrees Celsius |
| Wattage | 1 |

## Product Details

- **Brand:** Shelly
- **Connector type:** Screw
- **Contact material:** Steel
- **Contact type:** Normally Open
- **Current rating:** 2 Amps
- **International protection rating:** IP00
- **Item dimensions L x W x H:** 9.4 x 1.9 x 6.9 centimetres
- **Mounting type:** DIN Rail Mount
- **Operating voltage:** 12 Volts (DC)
- **Switch type:** Contactor Control

## Images

![Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required - Image 1](https://m.media-amazon.com/images/I/714nLkRns4L.jpg)
![Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required - Image 2](https://m.media-amazon.com/images/I/71NbO6--KXL.jpg)
![Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required - Image 3](https://m.media-amazon.com/images/I/81iq0IO6iOL.jpg)
![Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required - Image 4](https://m.media-amazon.com/images/I/71BO1pq3ehL.jpg)
![Pro 3EM Switch Add-On | Expand The Capabilities of Pro 3EM with Dry Contacts 2A | Contactor Control | DIN Rail Mount | Home Automation | iOS Android App | No Hub Required - Image 5](https://m.media-amazon.com/images/I/71HylrEI4VL.jpg)

## Available Options

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

## Customer Reviews

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

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

### ⭐⭐⭐⭐⭐ Produit conforme
*by R***N on 25 April 2025*

.

### ⭐⭐⭐⭐⭐ Non c'è di meglio
*by C***R on 11 May 2025*

Eccezionale come tutti i prodotti shelly

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-09*