---
product_id: 38476907
title: "12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger"
brand: "hiletgo"
price: "S/.53"
currency: PEN
in_stock: true
reviews_count: 10
category: "Hi Letgo"
url: https://www.desertcart.pe/products/38476907-12v-4-channel-relay-module-with-opto-isolated-support-high
store_origin: PE
region: Peru
---

# 10A max current load 12V coil voltage SMD optocoupler isolation 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger

**Brand:** hiletgo
**Price:** S/.53
**Availability:** ✅ In Stock

## Summary

> ⚡ Command your circuits with precision and style!

## Quick Answers

- **What is this?** 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger by hiletgo
- **How much does it cost?** S/.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/38476907-12v-4-channel-relay-module-with-opto-isolated-support-high)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Fault-tolerant design with clear LED indicators and durable mounting options
- • **Powerhouse Switching:** Handles up to 10A at 250VAC/30VDC for robust device control
- • **Opto-Isolated Stability:** SMD optocoupler isolation ensures clean signals and protects your circuits
- • **Plug & Play Convenience:** User-friendly screw terminals and jumper settings for quick setup
- • **Dual Trigger Flexibility:** Supports both high and low level triggers for versatile integration

## Overview

The HiLetgo 12V 4 Channel Relay Module features four independent SPDT relays rated for 10A at 250VAC/30VDC, with SMD optocoupler isolation for signal integrity and protection. It supports configurable high or low level triggers via jumpers, includes user-friendly screw terminals, LED status indicators, and a fault-tolerant design, making it a reliable and versatile choice for professional-grade automation and control projects.

## Description

12V 4 Channel Relay Module With OPTO-Isolated Support High and Low Level Trigger Description : 1. The module uses genuine quality relay , normally open interfaces Maximum load : AC 250V/10A, DC 30V/10A; 2. Using SMD OPTOCOUPLER isolation , driving ability , stable performance ; trigger current 5mA; 3. The module voltage is 12V; 4. Each way module can be set high or low triggered by jumper ; 5. Fault-tolerant design , even if the control line is broken , the relay will not operate ; 6. The power indicator ( green ) , 4 relay status indicator ( red ) 7. Interface design humane, all interfaces can be connected directly via terminal wiring leads , very convenient 8. Module size : 73mm * 50mm * 18.5mm ( L * W * H ) 9. Has four mounting bolts holes , hole 3.1mm, 67mm * 44.5mm pitch Interface : 1. DC +: positive power supply ( voltage required by the relay , there 5V.9V.12V and 24V choice ) 2. DC-: negative power connection 3. IN1-IN4: each way based on the settings , can be high or low to control the corresponding relay outputs : a 12- line interface, the interface can be directly connected to all leads , user-friendly 1. NO1 - NO4: normally open relay interfaces , relay before the vacant after the pull shorted with COM 2. COM1 - COM4 Common Interface Relays 3. NC1 - NC4: normally closed relay interface relay shorted with COM ago , after the pull- vacant High and low trigger selection : 1.S1-S4 in order to relay a way -4 road high and low trigger selection ; 2.Com with low short circuit , triggering the corresponding relay is low , while the high end of the short com high trigger

Review: Na - Works great, however the will not work below 8.6 volts
Review: HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger - On most of my projects, I buy these off-the-shelf relay boards rather than design, build, and test something of my own design. The cost of these boards is far less than a board I design and build myself, and it's built on an assembly line with the latest wave-soldering and testing plus the board is usually overengineered to include optical isolation and numerous capacitors and resistors to keep the signals clean and any relay coil feedback to a minimum. This specific board has four independent 12 VDC SPDT relays with a 240 VAC 10 Amp or 30 VDC 10 Amp switching capacity. The input signals are opto-isolated and can be configured for low or high trigger. The board worked perfectly out of the box, which is my experience about 99% of the time.

## Features

- HiLetgo 12V 4 Channel Relay Module
- Using SMD OPTOCOUPLER isolation
- High and Low Level Trigger

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LW2GM84 |
| Best Sellers Rank | #131,100 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #43 in Solid State Relays |
| Brand | HiLetgo |
| Brand Name | HiLetgo |
| Coil Voltage | 12 Volts |
| Connector Type | Screw |
| Contact Current Rating | 10 Amps |
| Contact Material | Lead |
| Contact Type | Normally Closed, Normally Open |
| Current Rating | 10 Amps |
| Customer Reviews | 4.5 out of 5 stars 173 Reviews |
| Manufacturer | HiLetgo |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 250 Volts |
| Model | 3-01-0371 |
| Mounting Type | Screw Mount |
| Operation Mode | Automatic |
| Part Number | 3-01-0371 |
| UPC | 702082656167 |
| Unit Count | 4.0 Count |
| Wattage | 60 Milliwatts |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Lead
- **Contact Type:** Normally Closed, Normally Open
- **Current Rating:** 10 Amps
- **Mounting Type:** Screw Mount

## Images

![12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger - Image 1](https://m.media-amazon.com/images/I/719VuX-GPfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Na
*by D***E on February 2, 2026*

Works great, however the will not work below 8.6 volts

### ⭐⭐⭐⭐⭐ HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger
*by J***D on August 18, 2025*

On most of my projects, I buy these off-the-shelf relay boards rather than design, build, and test something of my own design. The cost of these boards is far less than a board I design and build myself, and it's built on an assembly line with the latest wave-soldering and testing plus the board is usually overengineered to include optical isolation and numerous capacitors and resistors to keep the signals clean and any relay coil feedback to a minimum. This specific board has four independent 12 VDC SPDT relays with a 240 VAC 10 Amp or 30 VDC 10 Amp switching capacity. The input signals are opto-isolated and can be configured for low or high trigger. The board worked perfectly out of the box, which is my experience about 99% of the time.

### ⭐⭐⭐⭐⭐ Works well!
*by R***. on August 26, 2024*

If you're even mildly electrically inclined, this is pretty simple to set up. The operation of it is pretty simple. I had originally used this in an open auto pro setup, but decided to switch over to a four-channel opto coupler board instead, another there was anything wrong with us at all. It works really well and does what it's supposed to do. This board would also be a better option if you are trying to control higher voltages, as the optocoupler boards circuit is not designed to have a significant amount of current running through it. Something to keep in mind!

## Frequently Bought Together

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-06-19*