--- 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: "207 zł" currency: PLN in_stock: true reviews_count: 5 category: "Shelly" url: https://www.desertcart.pl/products/565932757-pro-3em-switch-add-on-add-on-for-pro-3em store_origin: PL region: Poland --- # 2A potential-free contact switching App & voice assistant control, no hub needed DIN rail mounting for seamless integration 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:** 207 zł **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your smart home control—powerful precision, zero hub hassle! ## 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?** 207 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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 and convenience. - • **Smart Anywhere Access:** Control your home devices remotely via iOS/Android app or voice assistants like Alexa and Google Home. - • **Effortless Integration:** Mounts neatly on DIN rails alongside your Shelly Pro 3EM for a clean, professional setup. - • **Precision Load Control:** Automate device and solar load shutdowns with pinpoint accuracy. - • **Flexible Power Compatibility:** Works directly with 3.3V or 12V outputs from the Pro 3EM—no extra power supply required. ## Overview The Shelly Pro 3EM Switch Add-On is a compact, DIN rail-mounted accessory designed exclusively for the Shelly Pro 3EM. It features potential-free contacts rated for up to 2A switching at 240V AC/30V DC, enabling precise automation of load shutdowns and solar/battery management. Controlled via the Shelly Smart Control app or popular voice assistants without requiring a hub, it offers flexible, remote device management and customizable automation schedules, making it an essential upgrade for energy-conscious smart homes. ## 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 - super Zusatzmodul, zum steuern von Schützen und Relais ! 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 | #95,633 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #205 in Home Automation Hubs & Controllers | | Color Name | white | | Connector Type | Screw | | Customer Reviews | 4.3 4.3 out of 5 stars (34) | | Date First Available | 10 September 2023 | | Hardware Platform | PC | | Item Weight | 20 g | | Item model number | Shelly_Pro_Add | | Material Type | Stainless Steel | | Product Dimensions | 12 x 6 x 19 cm; 20 g | | Size | Pro 3EM Switch Add-On | ## 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 J***K on 2 April 2026* super Zusatzmodul, zum steuern von Schützen und Relais ! ### ⭐⭐⭐⭐⭐ 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.pl/products/565932757-pro-3em-switch-add-on-add-on-for-pro-3em](https://www.desertcart.pl/products/565932757-pro-3em-switch-add-on-add-on-for-pro-3em) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-08*