--- product_id: 603340598 title: "DZS Elec 12V 4 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board" brand: "dzs elec" price: "13 kr" currency: DKK in_stock: false reviews_count: 8 url: https://www.desertcart.dk/products/603340598-dzs-elec-12v-4-channel-high-low-level-trigger-optical store_origin: DK region: Denmark --- # 12V Power Input AC 250V/10A Load Optical Isolation DZS Elec 12V 4 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board **Brand:** dzs elec **Price:** 13 kr **Availability:** ❌ Out of Stock ## Summary > 🔧 Power Meets Precision: Elevate Your Control Game! ## Quick Answers - **What is this?** DZS Elec 12V 4 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board by dzs elec - **How much does it cost?** 13 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/603340598-dzs-elec-12v-4-channel-high-low-level-trigger-optical) ## Best For - dzs elec enthusiasts ## Why This Product - Trusted dzs elec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Fault Tolerance:** Designed to ensure reliability; even if the control line fails, the relay remains inactive. - • **Strong Drive Capability:** Handles a trigger current of just 5mA, ensuring efficient operation. - • **Wide Load Compatibility:** Supports AC loads up to 250V/10A and DC loads up to 30V/10A, making it perfect for diverse applications. - • **Visual Status Indicators:** Stay informed with a green power light and red relay status indicator for real-time monitoring. - • **Versatile Triggering Options:** Easily switch between high and low level triggers with a simple jumper setting. ## Overview The DZS Elec 12V 4 Channel Relay Module is engineered for versatility and reliability, featuring high/low level triggering, optical isolation for enhanced safety, and a fault-tolerant design that ensures uninterrupted operation. With a maximum load capacity of AC 250V/10A and DC 30V/10A, this module is perfect for a wide range of applications, making it an essential tool for any professional looking to optimize their control systems. ## Description Feature: Module Size: 73*50*18.5mm With 4 fixed bolt holes, diameter 3.1mm, spacing 44.5*67mm High and low level trigger selection: Trigger current is 2-4mA, trigger low level is 0-4V, trigger high level is 4.5-12V 1. S1 1 way relay high or low level trigger selection; 2. S2 2 way relay high or low level trigger selection; 3. com and low in short circuit, the relay is low level trigger, com and high end in short circuit, the relay is high level trigger. Input Interface: 1. DC+: to connect the power positive (voltage as the relay required 12V) 2. DC-: to connect the power negative 3. IN1-IN4:can set the high or low level control relay Output Interface: 1. NO1-NO4: relay normally open interface, suspend the relay before pulling, then short connect with COM 2. COM1-COM4:relay common interface 3. NC1-NC4: relay normally close interface, short connect the relay with COM before pulling, then suspend Package Inlcude: 1pcs 12V 4 Channel High and Low Level Trigger Relay (Red Board) 4pcs Brass Standoff Spacer 4pcs Nuts ## Features - Can set high or low level trigger with jumper, to meet the demand of more trigger applications. - With patch optical isolation, strong drive ability and stable performance, the trigger current is 5mA. - With Fault Tolerant Design, humanized terminals, even if the control line is broken, the relay will not take any action. - With green power light, red relay status indicator light, can directly reflect the current module working condition. - Input voltage is 12V, the max load of interface is AC 250V/10, DC 30V/10A. ## Product Details - **Contact Type:** Normally Open - **Current Rating:** 10 Amps - **Brand:** DZS Elec - **Operation Mode:** Automatic - **Coil Voltage:** 12 Volts ## Images ![DZS Elec 12V 4 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board - Image 1](https://m.media-amazon.com/images/I/51DkFfGVK2L.jpg) ![DZS Elec 12V 4 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board - Image 2](https://m.media-amazon.com/images/I/51gN4YpbfGL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works fine for a great price *by A***R on December 14, 2017* I bought this to replace the trailer light module on my grand caravan. after burning up two store bought one at 50 some bucks a piece I thought I build my own. It works fine for a great price. I had 2 wire harnesses and all set. works very nice. been in my grand caravan for 2 years now without any problems at all. ### ⭐⭐⭐⭐⭐ Great for multiple switching *by D***. on July 28, 2019* I have purchased several of these boards and have found them great for projects, vehicle use, and home switching 120V appliances for self automation. They are well constructed and you get 4 separate SPDT relays, so can easily use them when you need a DPDT relay. Highly recommended. ### ⭐⭐⭐⭐ Great product *by M***O on March 31, 2019* Very nice little compact piece! Using to run small cooling fans, l.e.d. lights, and remote turn on for amplifiers. Only thing I wish was different would be all the "common" connections were made through the board and not have to run extra wires for those but I get different needs for different applications. So far very pleased though! --- ## 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.dk/products/603340598-dzs-elec-12v-4-channel-high-low-level-trigger-optical](https://www.desertcart.dk/products/603340598-dzs-elec-12v-4-channel-high-low-level-trigger-optical) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*