---
product_id: 143912268
title: "Gebildet 2pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-in Diode- 12V DC 4-Pin SPST Automotive Relays Hot Wires"
brand: "gebildet"
price: "₨744"
currency: SCR
in_stock: true
reviews_count: 8
category: "Gebildet"
url: https://www.desertcart.sc/products/143912268-gebildet-2pcs-40-30-amp-waterproof-relay-switch-12awg-harness
store_origin: SC
region: Seychelles
---

# 40A high current rating Waterproof reliability Built-in diode protection Gebildet 2pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-in Diode- 12V DC 4-Pin SPST Automotive Relays Hot Wires

**Brand:** gebildet
**Price:** ₨744
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your ride with unstoppable, weatherproof relay control!

## Quick Answers

- **What is this?** Gebildet 2pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-in Diode- 12V DC 4-Pin SPST Automotive Relays Hot Wires by gebildet
- **How much does it cost?** ₨744 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/143912268-gebildet-2pcs-40-30-amp-waterproof-relay-switch-12awg-harness)

## Best For

- gebildet enthusiasts

## Why This Product

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

## Key Features

- • **Endurance You Can Trust:** Rated for 10 million mechanical and 100,000 electrical operations—built to outlast your toughest drives.
- • **Integrated Diode Shield:** Built-in diode safeguards your vehicle’s electrical system from damaging voltage spikes.
- • **Weatherproof Powerhouse:** Engineered to perform flawlessly in rain, snow, or shine with superior waterproof sealing.
- • **Heavy-Duty 12AWG Harness:** Robust wiring designed for maximum durability and minimal voltage drop under heavy loads.
- • **Plug-and-Play Simplicity:** Pre-wired 4-pin SPST relays make installation seamless for pros and savvy DIYers alike.

## Overview

The Gebildet 2pcs 40/30 Amp Waterproof Relay Switch Set features heavy-duty 12AWG pre-wired harnesses with built-in diodes for voltage spike protection. Designed for 12V DC automotive systems, these 4-pin SPST relays deliver up to 40A contact current, operate reliably across extreme temperatures (-40 to +125°C), and boast exceptional durability with millions of mechanical cycles. Ideal for professionals seeking robust, weatherproof electrical switching solutions.

## Description

Specifications: Coil voltage: 12 V DC Coil current: 160 mA Switching voltage: 14 V DC max. Contact current rating: - NO 40 A 14 V DC - NC 30 A 14 V DC Ambient temperature: -40 ~ +125 degrees C (no condensation) Initial contact resistance (at 6 VDC 1 A): 50 mΩ max. Initial insulation resistance: 100 MΩ min. (DC 500 V) Initial dielectric strength: - Between open contacts: AC 500 V, 50/60 Hz 1 min. - Between coil and contact: AC 500 V, 50/60 Hz 1 min. Durability (operations): - Mechanical (at 7,200 operations/h): 10,000,000 - Electrical (at 600 operations/h): 100,000 Please note: --- Easy to install – No instructions were included – You need to have some basic electrical knowledge. --- For your own safety and the safety of others, please have the device installed by professional technicians.

Review: Perfect - Good quality with well crimped connections. Tested and wor absolutely perfectly. recommended. Very easy to install to 12 volt vehicle, no idea about other voltages! Works exactly as they should.
Review: Quality - Good quality fast delivery

## Features

- ✪ Waterproof automotive relay with 12V DC (max. 14V). Note: 12V and 14V are coil voltages, not the voltage that triggers the switch.
- ✪ Wire specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), and Blue - Output - N/O (87)
- ✪ Excellent waterproof performance, high quality in all weather conditions
- ✪ Pre-wired harness - Heavy-duty 12AWG wire harness.
- ✪ Integrated diode: Each relay features a built-in diode that suppresses the induced voltage during switching, protecting your electrical components from potential damage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TWC48QW |
| Brand | Gebildet |
| Coil Resistance | 75 Ohms |
| Coil Voltage | 12 Volts (DC) |
| Connector Type | Plug-In |
| Connector type | Plug-In |
| Contact Current Rating | 40 Amps |
| Contact Material | Silver Cadmium Oxide |
| Contact Type | Spst |
| Contact material | Silver Cadmium Oxide |
| Contact type | Spst |
| Country Of Origin | China |
| Current Rating | 40 Amps |
| Current rating | 40 Amps |
| Customer Reviews | 4.6 out of 5 stars 3,086 Reviews |
| Global Trade Identification Number | 08431248938183 |
| Manufacturer | Gebildet |
| Minimum Switching Voltage | 12 Volts (DC) |
| Mounting Type | Screw Mount |
| Mounting type | Screw Mount |
| Operation Mode | Automatic |
| Wattage | 1.92 watts |

## Product Details

- **Connector type:** Plug-In
- **Contact material:** Silver Cadmium Oxide
- **Contact type:** Spst
- **Current rating:** 4E+1 Amps
- **Mounting type:** Screw Mount

## Images

![Gebildet 2pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-in Diode- 12V DC 4-Pin SPST Automotive Relays Hot Wires - Image 1](https://m.media-amazon.com/images/I/51esTc7zIUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by S***Y on 21 December 2025*

Good quality with well crimped connections. Tested and wor absolutely perfectly. recommended. Very easy to install to 12 volt vehicle, no idea about other voltages! Works exactly as they should.

### ⭐⭐⭐⭐⭐ Quality
*by M***N on 31 December 2025*

Good quality fast delivery

### ⭐⭐⭐⭐ fuse included with relay plus connected good quality length
*by A***R on 24 July 2023*

Would have given it 5 starts but on the ones I recieved two of the coloured wires did not match up with the diagram. Red connected to 87 not 30 and Blue connected to 30 not 87. Apart from that it works great and easy to set up.

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-14*