---
product_id: 353956265
title: "1-Channel Relay Module, 12V DC, 30A, High/Low Level Trigger, Optocoupler Isolation, PLC/Industrial Control"
brand: "knacro"
price: "€ 10.51"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/353956265-1-channel-relay-module-12v-dc-30a-high-low-level
store_origin: ES
region: Spain
---

# 30A Power High/Low Trigger Optocoupler Isolation 1-Channel Relay Module, 12V DC, 30A, High/Low Level Trigger, Optocoupler Isolation, PLC/Industrial Control

**Brand:** knacro
**Price:** € 10.51
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Meets Precision: Elevate Your Control Game!

## Quick Answers

- **What is this?** 1-Channel Relay Module, 12V DC, 30A, High/Low Level Trigger, Optocoupler Isolation, PLC/Industrial Control by knacro
- **How much does it cost?** € 10.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/353956265-1-channel-relay-module-12v-dc-30a-high-low-level)

## Best For

- knacro enthusiasts

## Why This Product

- Trusted knacro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Optocoupler isolation ensures stable performance.
- • **Unleash the Power:** 30A relay handles heavy loads effortlessly.
- • **User-Friendly Design:** Direct wiring terminals for hassle-free connections.
- • **Versatile Voltage Options:** Choose from 5V, 12V, or 24V for your needs.
- • **Fault-Tolerant Engineering:** Control line issues? No problem, the relay stays safe.

## Overview

The KNACRO 1-Channel Relay Module is a robust and versatile solution for industrial control applications, featuring a 30A relay with optocoupler isolation, multiple voltage options, and a fault-tolerant design for reliable operation.

## Description

1-Channel Relay Module, 12V DC, 30A, High/Low Level Trigger, Optocoupler Isolation, PLC/Industrial Control

## Features

- Authentic quality module 30A relay, normally open interfaces Maximum load: AC 250V / 30A, DC 30V / 30A;
- SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;
- Module voltage 5V, 12V, 24V to choose from; the module can be set high or low-level triggered by jumper;
- Fault-tolerant design, even if the control line is broken, the relay will not operate; the power indicator (green), relay state indicator (red);
- User-friendly interface design, all interfaces are available through the wiring terminal direct connection leads, very convenient.

## Product Details

- **Connector type:** Wiring Terminals
- **Contact type:** Normally Open
- **Current rating:** 10 Amps
- **Mounting type:** Bolt Mount
- **Brand:** KNACRO

## Images

![1-Channel Relay Module, 12V DC, 30A, High/Low Level Trigger, Optocoupler Isolation, PLC/Industrial Control - Image 1](https://m.media-amazon.com/images/I/71Hb1TD6U6L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- KNACRO 10A 12V 1-Channel Relay Module High Low Level Triggering Optocoupler Isolation Load 10A DC 30V AC 250V for PLC Automation Control, Industrial System Control, Arduino (DC 12V 10A, 1-Channel)
- Elegoo 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Wires Ribbon Cables Kit for arduino
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

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**Shop now:** [https://www.desertcart.es/products/353956265-1-channel-relay-module-12v-dc-30a-high-low-level](https://www.desertcart.es/products/353956265-1-channel-relay-module-12v-dc-30a-high-low-level)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-02*