---
product_id: 378129738
title: "ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5"
brand: "esupport"
price: "€ 35.23"
currency: EUR
in_stock: true
reviews_count: 6
category: "Esupport"
url: https://www.desertcart.gr/products/378129738-esupport-car-heavy-duty-relay-switch-12v-30a-spst-4pin
store_origin: GR
region: Greece
---

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

**Brand:** esupport
**Price:** € 35.23
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your ride’s power game with ESUPPORT relays — reliability you can feel!

## Quick Answers

- **What is this?** ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 by esupport
- **How much does it cost?** € 35.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/378129738-esupport-car-heavy-duty-relay-switch-12v-30a-spst-4pin)

## 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

- • **Plug & Play 4-Pin Design:** Simplifies installation with secure, interlocking relay sockets.
- • **Power Through with 30 Amps:** Handles high current loads effortlessly for your automotive needs.
- • **Built to Last 10,000+ Cycles:** Engineered for long-term reliability under continuous use.
- • **Waterproof & Weather-Resistant:** Ensures peak performance even in harsh environments.
- • **Versatile Automotive Applications:** Perfect for cooling fans, fuel pumps, solenoids, horns, and more.

## Overview

The ESUPPORT Car Heavy Duty Relay Switch pack includes five 12V 30A SPST 4-pin waterproof relays designed for automotive electrical systems. Featuring a robust mechanical life of over 10,000 cycles and plug-in mounting, these relays reduce voltage drop and ensure consistent performance for components like cooling fans, fuel pumps, and solenoids. Trusted by users for durability and efficiency, this pack offers a cost-effective, high-quality solution for professional-grade vehicle upgrades.

## Description

1.Brand new heavy duty SPST relays 2.12 Volt 30 amp 4-prong relays 3.Mechanical life of 10,000+ cycles 4.These are heavy duty 30A relays. 5.This kit can be used to install electric cooling fans,Electric fuel pumps,Electric water Pumps,Shaved door handles solenoids,Trunk solenoids,Horns. 6.Using this kit will eliminate a high voltage drop in the wire,So it allow your components to work properly Package Include: 5 x 30A replay (4Pin)

Review: Fan relay for Honda Pilot and other Honda cars - Excellent product. Do not get hot even when cooling fan runs continuously in hot summer in UAE. Good product
Review: Great replacement for 2001 Solara tail light relay at a bargain price. - The ESupport 12V 30A electrical automotive relay pack of 5 is a real bargain. The tail light relay in my 2001 Toyota Solara was failing (I'd have to activate the switch multiple times to get the lights on) needed to be replaced, but the local chain auto parts store wanted over $30 for the "genuine" relay, which seemed like way too much. These looked like a good fit, were rated the same and work the same, so at less than $2 a relay, I took a chance on them. I'm glad I did, because it's a perfect fit for my Solara (and presumably any 99-01 Camry or Solara) and an instant fix (after checking out everything else it could possibly be, wiring, combination switch, the bulbs). It's just a shame that Toyota hadn't hidden the tail light relay (it's on the backside of the fuse panel), because otherwise I would have figured it out a lot more quickly. These are great. If you need a 12V 30A SPST relay, this will probably do the trick.

## Features

- Brand new heavy duty SPST relays
- Interlocking relay sockets
- 12 Volt 30 amp 4-prong relays
- Package Include: 5X 30A 4Pin Relay

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00RV6CDOC |
| Best Sellers Rank | #164,629 in Automotive ( See Top 100 in Automotive ) #116 in Automotive Power Relays #178 in Automotive Accessory Power Relays |
| Brand | ESUPPORT |
| Brand Name | ESUPPORT |
| Coil Voltage | 12 Volts |
| Connector Type | Screw |
| Connector type | Screw |
| Contact Current Rating | 30 Amps |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Contact material | Silver |
| Contact type | Normally Open |
| Current Rating | 30 Amps |
| Current rating | 30 Amps |
| Customer Reviews | 4.4 out of 5 stars 499 Reviews |
| Manufacturer | ESUPPORT |
| Maximum Switching Current | 30 Amps |
| Minimum Switching Voltage | 12 Volts (DC) |
| Mounting Type | Plug In Mount |
| Mounting type | Plug In Mount |
| Operation Mode | Automatic |
| Part Number | CXR30A04B |
| UPC | 711041556943 |
| Unit Count | 5 Count |
| Wattage | 360 watts |

## Product Details

- **Brand:** ESUPPORT
- **Contact Material:** Silver
- **Contact Type:** Spst
- **Current Rating:** 30 Amps
- **Operation Mode:** Electrical

## Images

![ESUPPORT 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)
![ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 - Image 2](https://m.media-amazon.com/images/I/61Pk7ZTGCiL.jpg)
![ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 - Image 3](https://m.media-amazon.com/images/I/51I1HzDCT9L.jpg)
![ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 - Image 4](https://m.media-amazon.com/images/I/61HJdsp8cxL.jpg)
![ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5 - Image 5](https://m.media-amazon.com/images/I/61R50hRJduL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fan relay for Honda Pilot and other Honda cars
*by A***. on 20 January 2024*

Excellent product. Do not get hot even when cooling fan runs continuously in hot summer in UAE. Good product

### ⭐⭐⭐⭐⭐ Great replacement for 2001 Solara tail light relay at a bargain price.
*by M***R on 17 December 2019*

The ESupport 12V 30A electrical automotive relay pack of 5 is a real bargain. The tail light relay in my 2001 Toyota Solara was failing (I'd have to activate the switch multiple times to get the lights on) needed to be replaced, but the local chain auto parts store wanted over $30 for the "genuine" relay, which seemed like way too much. These looked like a good fit, were rated the same and work the same, so at less than $2 a relay, I took a chance on them. I'm glad I did, because it's a perfect fit for my Solara (and presumably any 99-01 Camry or Solara) and an instant fix (after checking out everything else it could possibly be, wiring, combination switch, the bulbs). It's just a shame that Toyota hadn't hidden the tail light relay (it's on the backside of the fuse panel), because otherwise I would have figured it out a lot more quickly. These are great. If you need a 12V 30A SPST relay, this will probably do the trick.

### ⭐⭐⭐⭐⭐ Good quality and good value
*by J***O on 24 February 2024*

But this because I needed them and they are good qualities and the value is really good on here

## Frequently Bought Together

- ESUPPORT Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Electrical Automotive Pack of 5
- JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro Fuse + 1 Puller – for Car/RV/Truck/Motorcycle(2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A)
- QWORK Relay Puller Plier, 9-1/16" Long 3-3/4" Maximum Opening Auto Metal Relay and Fuse Remover Tool

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-28*