---
product_id: 17960023
title: "Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5"
brand: "esupport"
price: "฿1088"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/17960023-car-heavy-duty-relay-switch-12v-30a-spst-4pin-waterproof
store_origin: TH
region: Thailand
---

# 30A high current capacity Waterproof design for durability Plug-in mount for easy installation Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5

**Brand:** esupport
**Price:** ฿1088
**Availability:** ✅ In Stock

## Summary

> ⚡ Drive Reliability, Command Power!

## Quick Answers

- **What is this?** Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 by esupport
- **How much does it cost?** ฿1088 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/17960023-car-heavy-duty-relay-switch-12v-30a-spst-4pin-waterproof)

## Best For

- esupport enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Over 10,000 mechanical cycles for reliable, long-term performance
- • **Value Pack Advantage:** Set of 5 relays to keep your fleet or projects fully powered and ready
- • **Weatherproof Warrior:** Waterproof construction ensures flawless operation in any environment
- • **Plug & Play Simplicity:** Effortless installation with interlocking relay sockets and plug-in mount
- • **Power Up with Confidence:** Handles up to 30 amps for heavy-duty automotive demands

## Overview

The ESUPPORT Car Heavy Duty Relay Switch is a 12V, 30A SPST 4-pin relay designed for automotive electrical systems. Featuring a waterproof build, plug-in mounting, and silver contact material, it guarantees durability and high performance with over 10,000 mechanical cycles. Sold in a convenient pack of 5, it’s perfect for professionals seeking dependable, heavy-duty relay solutions.

## Description

ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5

## Features

- Brand new heavy duty SPST relays
- Interlocking relay sockets
- 12 Volt 30 amp 4-prong relays
- Package Include: 5X 30A 4Pin Relay
- Mechanical life of 10,000+ cycles

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Type | Screw |
| Contact Material | Silver |
| Contact Type | Spst |
| Current Rating | 30 Amps |
| Mounting Type | Plug In Mount |
| Brand | ESUPPORT |
| Operation Mode | Automatic |
| Wattage | 360 watts |
| Coil Voltage | 12 Volts |
| Contact Current Rating | 30 Amps |
| Maximum Switching Current | 30 Amps |
| Minimum Switching Voltage | 12 Volts (DC) |
| UPC | 711041556943 |
| Manufacturer | ESUPPORT |
| Item Weight | 3.17 ounces |
| Package Dimensions | 5.75 x 4.72 x 1.89 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | CXR30A04B |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Silver
- **Contact Type:** Spst
- **Current Rating:** 30 Amps
- **Mounting Type:** Plug In Mount

## Images

![Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 - Image 1](https://m.media-amazon.com/images/I/61gezmaRx3L.jpg)

## Available Options

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

## Frequently Bought Together

- ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5
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**Shop now:** [https://www.desertcart.co.th/products/17960023-car-heavy-duty-relay-switch-12v-30a-spst-4pin-waterproof](https://www.desertcart.co.th/products/17960023-car-heavy-duty-relay-switch-12v-30a-spst-4pin-waterproof)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-18*