--- product_id: 4330777 title: "Web Relay 2-Channel 20-Amp SPDT Relays Installed" brand: "national control devices" price: "₩2797" currency: KRW in_stock: false url: https://www.desertcart.kr/products/4330777-web-relay-2-channel-20-amp-spdt-relays-installed store_origin: KR region: South Korea --- # 20A Power Web Control Direct TCP/IP Web Relay 2-Channel 20-Amp SPDT Relays Installed **Brand:** national control devices **Price:** ₩2797 **Availability:** ❌ Out of Stock ## Summary > 🔗 Connect, Control, Conquer! ## Quick Answers - **What is this?** Web Relay 2-Channel 20-Amp SPDT Relays Installed by national control devices - **How much does it cost?** ₩2797 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/4330777-web-relay-2-channel-20-amp-spdt-relays-installed) ## Best For - national control devices enthusiasts ## Why This Product - Trusted national control devices brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready to Go:** Includes a 12V wall wart power supply for immediate setup and use. - • **Flexible Networking:** Supports both DHCP and static IP for versatile integration into your existing systems. - • **Powerful Performance:** Harness 20 amps of control with dual SPDT relays for maximum efficiency. - • **Seamless Connectivity:** Enjoy built-in web pages for effortless relay control and sensor readings. - • **Unmatched Reliability:** Leverage an industry-leading command set for dependable operation. ## Overview The Web Relay 2-Channel 20-Amp SPDT Relays Installed offers robust control with dual 20-amp relays, built-in web pages for easy management, and flexible networking options, all backed by a reliable command set and a convenient power supply. ## Description Web Relay The R220PL_Web-i Web Relay has built-in web pages in the ethernet module that you can access with any device with a browser! You can access the pages regardless of the platform. Any browser on Android, IOS or Windows devices can be used on a phone, tablet or computer to control the relays! Built-In Working Web Pages Along with controlling relays you can also read analog inputs, set passwords, create macros and send ProXR Commands all through pages that are already there! These are working pages that are ready to go as soon as you establish communication to the board but it doesn't stop there. Using a simple ftp program and HTML editor you can download and modify the pages to fit your needs or company look including adding your logo and company information! LAN or Internet Control Control relays from your local internet only when you are connected to your local area network or control from the internet from anywhere outside your network. Before you can communicate to a Web-i device from outside your network, port forwarding must be configured on your router. Power Supply Included The board requires 12 VDC to operate the firmware on the board and a wall wort type power supply is included. SPDT Relays Installed SPDT Single Pole Double Throw Relays have three connections – Common, Normally Open, and Normally Closed. When the relay is off, the Common is connected to the normally closed. When the relay coil is energized, the Common swings over to the Normally Open Connection position. You can wire to either the Normally Open or the Normally Closed position. 2-Million Cycles This board is designed for long life, you should expect to get years of service from your controller and 2-million cycles from the relays ProXR Firmware The industry leading firmware for controlling relays. ## Features - 2 20-Amp Single Pole Double Throw (SPDT) Relays Installed - Built-In Web Pages for Controlling Relays & Reading Sensors (0 - 5 Volt) - Direct TCP/IP Communications Supports DHCP & Static IP - Highly Reliable with Industry Leading Command Set - 12 Volt Wall Wort Power Supply Included ## Images ![Web Relay 2-Channel 20-Amp SPDT Relays Installed - Image 1](https://m.media-amazon.com/images/I/51TVelOai5L.jpg) ![Web Relay 2-Channel 20-Amp SPDT Relays Installed - Image 2](https://m.media-amazon.com/images/I/31aLUg3wtqL.jpg) ![Web Relay 2-Channel 20-Amp SPDT Relays Installed - Image 3](https://m.media-amazon.com/images/I/41JuwyihGoL.jpg) ![Web Relay 2-Channel 20-Amp SPDT Relays Installed - Image 4](https://m.media-amazon.com/images/I/41CbdN5l12L.jpg) ![Web Relay 2-Channel 20-Amp SPDT Relays Installed - Image 5](https://m.media-amazon.com/images/I/51w9ULcnIAL.jpg) --- ## 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.kr/products/4330777-web-relay-2-channel-20-amp-spdt-relays-installed](https://www.desertcart.kr/products/4330777-web-relay-2-channel-20-amp-spdt-relays-installed) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-06-02*