--- product_id: 58422919 title: "2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control" brand: "knacro" price: "€ 22.99" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.be/products/58422919-2-channel-5v-relay-module-high-low-level-triggering-optocoupler store_origin: BE region: Belgium --- # 2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control **Brand:** knacro **Price:** € 22.99 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** 2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control by knacro - **How much does it cost?** € 22.99 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/58422919-2-channel-5v-relay-module-high-low-level-triggering-optocoupler) ## Best For - knacro enthusiasts ## Why This Product - Trusted knacro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description 2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control ## Features - Using high-power relay, the maximum control load DC 30V 30A / AC 250V 30A; - With each optocoupler isolation, anti-interference ability. - In line with international safety standards, the control area and the load area with isolation slot. - Each channle has a relay on LED indication. - Product Applications: PLC automation equipment control, industrial system control, logistics network control, home intelligent product control, electronic enthusiasts to develop experiments, all kinds of circuit modification. ## Images ![2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control - Image 1](https://images-na.ssl-images-amazon.com/images/I/81KeTXpxNIL.jpg) ![2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control - Image 2](https://images-na.ssl-images-amazon.com/images/I/81veBT6UUgL.jpg) ![2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control - Image 3](https://images-na.ssl-images-amazon.com/images/I/812aKl9vt0L.jpg) ![2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control - Image 4](https://images-na.ssl-images-amazon.com/images/I/81HNSZOBkOL.jpg) ![2-Channel 5V Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control - Image 5](https://images-na.ssl-images-amazon.com/images/I/814NXvkHnyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Robust relays for commercial applications *by M***S on Reviewed in the United States on July 1, 2020* The package came and I wired it up to the Arduino and power and it works flawlessly. I amended the times to heat the desiccate and now it dries the desiccate perfectly it also controls the solenoid which selects the column. I had a 5VDC charger at 2000 mA so both the arduino and the relay board were powered from the one 5V charger and it really cleaned up the installation. I bought a second relay as a spare but there is a good chance I will not need it for a long time. This relay boards are pretty quiet which is a bonus. ### ⭐⭐⭐⭐⭐ Fits the requirements *by J***I on Reviewed in the United States on April 26, 2018* Used with Arduino. Arduino 5v pin was insufficient current to drive the relays. I needed to provide a separate 5v supply. Once I understood this requirement, the relays have worked well. Able to connect 12Gauge wire to the high voltage terminals, as the terminals are sized large enough to accept this gauge. ### ⭐⭐⭐⭐⭐ Perfect *by G***Z on Reviewed in the United States on April 12, 2019* It fits perfectly for my project (automatic control for an electric water heater). The hardware looks good quality and it works well. A point to note is that you have to connect your arduino to an external power source. --- ## 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/58422919-2-channel-5v-relay-module-high-low-level-triggering-optocoupler](https://www.desertcart.be/products/58422919-2-channel-5v-relay-module-high-low-level-triggering-optocoupler) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-04-28*