--- 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: "Rp1532485" currency: IDR in_stock: true reviews_count: 7 url: https://www.desertcart.id/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em store_origin: ID region: Indonesia --- # 2A dry contact relay Optimizes solar & wind energy use No hub, app 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:** Rp1532485 **Availability:** ✅ In Stock ## Summary > ⚡ Empower your energy, automate your future! ## 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?** Rp1532485 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/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 Remote Mastery:** Control and monitor your energy flow anytime via iOS/Android app without extra hubs - • **Seamless Energy Command:** Electrically isolated 2A dry contact relay for precise device control - • **Smart Solar & Wind Sync:** Automatically balances PV system by activating appliances with excess energy - • **Future-Proof Reliability:** Backed by a 5-year warranty and professional Shelly support - • **Load Shedding Made Effortless:** Auto-switch off non-essential devices to maximize energy savings ## Overview The Shelly Pro 3EM Switch Add-On is a compact, DIN rail-mounted dry contact relay that extends the Shelly Pro 3EM’s capabilities by enabling smart control of contactors and electrical devices. It optimizes renewable energy use from solar panels and wind turbines by automatically managing appliance loads, supports real-time energy monitoring via a dedicated app without requiring a hub, and comes with a 5-year warranty for long-term reliability. ## Description 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.​ Pro 3EM Switch Add-On Shelly Pro 3EM (120A) Shelly Pro 3EM (400A) Shelly 3EM Hello, we are Shelly – one of the fastest-growing EU-based IoT brands. For us, it’s not about the size of your cart, it’s about helping you live smarter and better. We offer… Multi-protocol Connectivity Open and Flexible Ecosystem No Hub Needed! Local and Remote control Free Shelly App (+ Premium for advanced features) Products tailored to fit US standards and dedicated local team ## 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 | #29,752 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #4 in Industrial Power Meters | | Brand Name | Shelly | | Customer Reviews | 4.6 4.6 out of 5 stars (92) 4.6 out of 5 stars | | Eu Spare Part Availability Duration | 5 years | | Global Trade Identification Number | 03800235268131 | | Included Components | 1 pack | | Item Dimensions | 3.7 x 0.75 x 2.72 inches | | Item Weight | 20 g | | Manufacturer | Shelly Europe | | Material Type | Plastic | | Model | Shelly_Pro_Add | | Number Of Items | 1 | | Part Number | 3800235268131 | | Unit Count | 1 Count | | Warranty Description | 5 year manufacturer | ## Product Details - **Brand:** Shelly - **EU Spare Part Availability Duration:** 5 years - **Item Weight:** 20 g - **Item dimensions L x W x H:** 3.7 x 0.75 x 2.72 inches - **Material:** Plastic ## 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 on Reviewed in the United States May 1, 2026* Snaps on, super clean. I used it to control the coil of a larger contactor. ### ⭐⭐⭐⭐⭐ Works great simple install *by on Reviewed in the United States 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 ### ⭐⭐⭐⭐⭐ 💯 compatible zendure *by on Reviewed in France July 23, 2026* Impeccable, les données remontent bien via HA, pilotage nickel avec zendure ## 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.id/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em](https://www.desertcart.id/products/604996448-shelly-pro-3em-switch-add-on-add-on-pro-3em) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-08-18*