--- product_id: 565932757 title: "Shelly 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: "€ 54.94" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.be/products/565932757-shelly-pro-3em-switch-add-on-add-on-for-pro store_origin: BE region: Belgium --- # 2A potential-free contact load control App & voice assistant remote control DIN rail mounting for seamless integration Shelly 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:** € 54.94 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your smart home control—power meets precision! ## Quick Answers - **What is this?** Shelly 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?** € 54.94 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-shelly-pro-3em-switch-add-on-add-on-for-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 - • **Seamless Compatibility:** Designed exclusively for Shelly Pro 3EM for flawless synergy - • **Precision Power Control:** Automate load and device shutdowns with pinpoint accuracy - • **Robust & Safe Switching:** Potential-free contacts handle up to 240V AC/30V DC at 2A safely - • **Effortless Remote Management:** Control your home devices anytime via iOS/Android app or voice assistants - • **Smart Scheduling & Automation:** Create custom timers and smart scenes to optimize energy use ## Overview The Shelly Pro 3EM Switch Add-On enhances your Shelly Pro 3EM with potential-free contacts capable of switching up to 2A loads. It mounts easily on DIN rails and integrates seamlessly with the Shelly Smart Control app and popular voice assistants, enabling precise, remote automation of electrical devices without the need for a hub. ## 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. ## 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 | #65,576 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #134 in Home Automation Hubs & Controllers | | Brand Name | Shelly | | Customer Reviews | 4.6 4.6 out of 5 stars (91) 4.6 out of 5 stars | | Eu Spare Part Availability Duration | 5 Years | | Global Trade Identification Number | 03800235268131 | | Item Dimensions | 9.4 x 1.9 x 6.9 centimeters | | Item Weight | 20 Grams | | Manufacturer | Shelly | | Material Type | Stainless Steel | | Model | Shelly_Pro_Add | | Number Of Items | 1 | | Part Number | 3800235268131 | | Unit Count | 1 Count | ## Product Details - **Brand:** Shelly - **Connector type:** Screw - **Contact type:** Work Contact - **Material:** Stainless Steel - **Switch type:** Connected switch ## Images ![Shelly 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) ![Shelly 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 2](https://m.media-amazon.com/images/I/81iq0IO6iOL.jpg) ![Shelly 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 3](https://m.media-amazon.com/images/I/71BO1pq3ehL.jpg) ![Shelly 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 4](https://m.media-amazon.com/images/I/8190vflWwTL.jpg) ![Shelly 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 5](https://m.media-amazon.com/images/I/91KqnU4FLEL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 💯 compatible zendure *by on Reviewed in France 23 July 2026* Impeccable, les données remontent bien via HA, pilotage nickel avec zendure ### ⭐⭐⭐ Works fine, but I wish it didn't need to exist. *by on Reviewed in Australia 21 July 2026* It works, but the fact that this thing even needs to exist is mid. Why can't the Pro 3EM just have a contactor built in like the Pro EM-50 does, and the 3EM used to have? Seems like the Pro 3EM has taken a step back in some ways. ### ⭐⭐⭐⭐⭐ Tut was es soll *by on Reviewed in Germany 1 May 2026* Gut. Einfach zu installieren. Aber ohne cloud-anbindung bringt es gar nichts. Vor allem, wenn man mit dem Gerät balkonkrafter steuern möchte ## 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-shelly-pro-3em-switch-add-on-add-on-for-pro](https://www.desertcart.be/products/565932757-shelly-pro-3em-switch-add-on-add-on-for-pro) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-15*