--- product_id: 565932757 title: "Pro 3EM Switch Add-On | Add-On for Pro 3EM with Potential-Free Contacts 2A | DIN Rail Mounting | Contactor Control | Home Automation | iOS Android App | No Hub Required" brand: "shelly" price: "€ 107.78" currency: EUR in_stock: true reviews_count: 5 category: "Shelly" url: https://www.desertcart.be/products/565932757-pro-3em-switch-add-on-add-on-for-pro-3em store_origin: BE region: Belgium --- # 2A contact current rating App & voice assistant control DIN rail mounting ready Pro 3EM Switch Add-On | Add-On for Pro 3EM with Potential-Free Contacts 2A | DIN Rail Mounting | Contactor Control | Home Automation | iOS Android App | No Hub Required **Brand:** shelly **Price:** € 107.78 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your smart home control — power precision meets effortless automation! ## Quick Answers - **What is this?** Pro 3EM Switch Add-On | Add-On for Pro 3EM with Potential-Free Contacts 2A | DIN Rail Mounting | Contactor Control | Home Automation | iOS Android App | No Hub Required by shelly - **How much does it cost?** € 107.78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/565932757-pro-3em-switch-add-on-add-on-for-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 - • **Custom Automation:** Set personalized timers and smart scenes to optimize energy use effortlessly. - • **Seamless Integration:** Works exclusively with Shelly Pro 3EM for flawless compatibility. - • **Robust Contact Rating:** Handles up to 240V AC or 30V DC at 2A for versatile load management. - • **Smart Anywhere Access:** Control your home devices remotely via app or Alexa, Google Home, SmartThings. - • **Precision Power Control:** Automate load and device shutdowns with pinpoint accuracy. ## Overview The Shelly Pro 3EM Switch Add-On enhances your Shelly Pro 3EM system with potential-free contacts rated for 2A, enabling precise switching and load management. Designed for DIN rail mounting, it supports 240V AC or 30V DC loads and integrates seamlessly with popular smart home platforms via app and voice control—no hub required. Perfect for professionals seeking advanced energy automation and remote device management. ## Description Electro-insulated switch to extend the functions of the Shelly Pro 3EM device. Allows more flexible control and monitoring of consumption. *Only compatible with the Shelly Pro 3EM. Key Features Potential-free contacts Can be mounted on DIN rail. *Only compatible with the Shelly Pro 3EM. Review: Toll - Tut was es soll, misst meine Leistung, rechnet sogar Blind und Scheinleistung aus automatisch. Sehr nice 👍 Review: Produit conforme - . ## Features - Precise switching: adds switching options to the Shelly Pro 3EM to automate load shutdowns, device shutdowns and solar/battery management - The perfect money: installed next to the Shelly Pro 3EM and works with 3.3 V or 12 V, which are provided directly from the device - Power suppress: controls external loads with potential-free contacts that can be loaded with up to 240 V AC or 30 V DC and a maximum current of 2 A - Control your devices from anywhere with the Shelly Smart Control app or voice assistants such as Alexa, Google Home and SmartThings – no matter how much you need - Zonal and timer: Create individual timers and schedules or automate your home with smart scenes ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C718B37C | | Best Sellers Rank | #112,677 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #234 in Home Automation Hubs & Controllers | | Brand | Shelly | | Brand Name | Shelly | | Connector Type | Screw | | Connector type | Screw | | Contact Current Rating | 2 Amps | | Contact Material | Steel | | Contact Type | Work Contact | | Contact material | Steel | | Contact type | Work Contact | | 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 | | Item Weight | 20 Grams | | Manufacturer | Shelly | | Model | Shelly_Pro_Add | | Mounting Type | DIN Rail Mount | | Mounting type | DIN Rail Mount | | Operation Mode | ON-OFF | | Part Number | Shelly_Pro_Add | | Smart Home Compatibility | Smart Home Compatible | | Specification Met | RoHS | | Unit Count | 1 Count | | Upper Temperature Rating | 40 Degrees Celsius | | Wattage | 1 | ## Product Details - **Brand:** Shelly - **Connector type:** Screw - **Contact type:** Work Contact - **Material:** Stainless Steel - **Switch type:** Connected switch ## Images ![Pro 3EM Switch Add-On | Add-On for Pro 3EM with Potential-Free Contacts 2A | DIN Rail Mounting | Contactor Control | Home Automation | iOS Android App | No Hub Required - Image 1](https://m.media-amazon.com/images/I/714nLkRns4L.jpg) ## 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 - 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/565932757-pro-3em-switch-add-on-add-on-for-pro-3em](https://www.desertcart.be/products/565932757-pro-3em-switch-add-on-add-on-for-pro-3em) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-07*