---
product_id: 132643411
title: "50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV"
brand: "nilight"
price: "¥5587"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/132643411-50023r-5-pack-30a-fused-relay-switch-kit-12v-4
store_origin: JP
region: Japan
---

# 30A heavy-duty current rating 4-Pin SPST relay for precise control Interlocking mounting design for neat setup 50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV

**Brand:** nilight
**Price:** ¥5587
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your ride’s power game with Nilight’s all-in-one relay kit!

## Quick Answers

- **What is this?** 50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV by nilight
- **How much does it cost?** ¥5587 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/132643411-50023r-5-pack-30a-fused-relay-switch-kit-12v-4)

## Best For

- nilight enthusiasts

## Why This Product

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

## Key Features

- • **Color-Coded Wiring:** Simplifies installation with clearly labeled wires for quick, error-free setup.
- • **Integrated Fuse Socket:** Built-in 30A blade fuse saves space and money—no extra fuse holder needed.
- • **Versatile Automotive Use:** Perfect for power control, overload protection, trunk release, and more—upgrade your vehicle’s electrical system with confidence.
- • **Power-Packed 30A Capacity:** Handles high current loads effortlessly, ensuring reliable automotive performance.
- • **Smart Interlocking Design:** Unique male/female slots let you connect relays seamlessly for clean, organized wiring.

## Overview

The Nilight 50023R 5 Pack Relay Switch Kit features 30A 12V 4-pin SPST relays with built-in fuse sockets and heavy-duty 14AWG wiring. Its innovative interlocking mounting design ensures tidy installations, while color-coded wires make setup straightforward. Ideal for automotive applications like power control, overload protection, and actuator management, this kit delivers reliable, space-saving performance for cars, trucks, and RVs.

## Description

Nilight 50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV

## Features

- Upgraded Version - Automotive relays built in fuse socket included 30A blade fuse with heavy duty 14AWG wires for main contact. no need of a separate fuse holder, saving space and money. 4-Pin SPST (Single Pole Single Throw) Relay.
- Mounting Design Feature - The interlocking mounting design of unique male and female slot on each socket edge, connect relays together and manage cables easily, offering clean and neat installation.
- Easy Wiring - The relay sockets come with color-labeled wires for load/accessories convenient wiring. Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87)
- Wide Application - Widely used in car keys power control, over-load protection, trunk release, polarity change, power door lock/actuator control, change a low current output to high current, add ignition/accessory outputs, control motors/other electronics etc.
- Set includes 5 relays, 5 relay harnesses, and 5 30A blade fuses.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Type | Through Hole |
| Contact Material | Copper |
| Contact Type | Normally Closed |
| Current Rating | 30 Amps |
| Mounting Type | Wall Mount |
| Brand | Nilight |
| Operation Mode | Manual |
| Coil Voltage | 12 Volts |
| Contact Current Rating | 30 Amps |
| Maximum Switching Current | 30 Amps |
| Minimum Switching Voltage | 12 Volts |
| Specification Met | CE |
| UPC | 812227031046 |
| Manufacturer | Nilight |
| Model | 50023R |
| Item Weight | 11.5 ounces |
| Product Dimensions | 8 x 6 x 2 inches |
| Item model number | 50023R |
| Exterior | Painted |
| Manufacturer Part Number | 50023R |
| Voltage | 12 Volts |

## Product Details

- **Connector Type:** Through Hole
- **Contact Material:** Copper
- **Contact Type:** Normally Closed
- **Current Rating:** 30 Amps
- **Mounting Type:** Wall Mount

## Images

![50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV - Image 1](https://m.media-amazon.com/images/I/61z1y80haWL.jpg)

## Available Options

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

## Frequently Bought Together

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- 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)

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**Shop now:** [https://www.desertcart.jp/products/132643411-50023r-5-pack-30a-fused-relay-switch-kit-12v-4](https://www.desertcart.jp/products/132643411-50023r-5-pack-30a-fused-relay-switch-kit-12v-4)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-10*