---
product_id: 36985521
title: "EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters,Pack of 2"
brand: "ehdis"
price: "S$17"
currency: SGD
in_stock: true
category: "Ehdis"
url: https://www.desertcart.sg/products/36985521-ehdis-car-relay-4-pin-12v-40amp-spst-model-no
store_origin: SG
region: Singapore
---

# 40A high current capacity 4-pin SPST design 0.01s ultra-fast switching EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters,Pack of 2

**Brand:** ehdis
**Price:** S$17
**Availability:** ✅ In Stock

## Summary

> ⚡ Drive with confidence—power and precision in every switch!

## Quick Answers

- **What is this?** EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters,Pack of 2 by ehdis
- **How much does it cost?** S$17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/36985521-ehdis-car-relay-4-pin-12v-40amp-spst-model-no)

## Best For

- ehdis enthusiasts

## Why This Product

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

## Key Features

- • **Dual Pack Value:** Two premium relays included—upgrade multiple systems or keep a spare for peace of mind.
- • **Rapid Response Time:** Switches in a lightning-fast 0.01 seconds to keep your vehicle components perfectly synced.
- • **Plug & Play Simplicity:** No tools required—just connect wires and get your system running in seconds.
- • **Power Through Anything:** Handles up to 40 amps effortlessly for your high-demand automotive needs.
- • **Reliable Silver Tin Contacts:** Durable silver tin oxide contacts ensure long-lasting, corrosion-resistant performance.

## Overview

The EHDIS Car Relay 4 Pin 12V 40A SPST (Model JD2912-1H-12VDC) is a heavy-duty automotive relay designed for high current applications. Featuring a robust 40 amp capacity, silver tin oxide contacts for durability, and an ultra-fast 0.01 second switching time, this pack of two relays offers reliable, tool-free installation to keep your vehicle’s electrical systems running smoothly and efficiently.

## Description

Buy EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters,Pack of 2: Accessory Power - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Heavy duty 4-prongs SPST relays, jd1912 12v 40a relay
- Use optional Relay Harness, or female Crimp Connectors
- High 40A coil capacity- able to handle those high current applications with ease
- Package Include: 2 x 40A 4-Pin 12V Vehicle Relays
- The Automotive relay is suitable for normal automobile use and simple to operate, you just need to connect the relay with the wire, no other tools needed, convenient for your use and replace, allowing your components to work properly

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01J53IH5M |
| Best Sellers Rank | #28,721 in Automotive ( See Top 100 in Automotive ) #24 in Automotive Replacement Accessory Power Relays |
| Brand Name | EHDIS |
| Coil Voltage | 12 volts |
| Connector Type | Crimp |
| Contact Current Rating | 40 A |
| Contact Material | Silver Tin Oxide |
| Contact Type | Normally Open |
| Current Rating | 40 A |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,408) |
| Item Weight | 0.04 kg |
| Manufacturer | Ehdis |
| Maximum Switching Current | 40 A |
| Maximum Switching Voltage | 12 volts |
| Minimum Switching Voltage | 12 volts_of_direct_current |
| Model | 2C05-12V |
| Operating Time | 0.01 seconds |
| Operation Mode | Automatic |
| Part Number | 2C05-12V |
| Specification Met | Ccee |
| UPC | 713653050390 |
| Upper Temperature Rating | 80 °C |
| Wattage | 1.8 watts |

## Product Details

- **Brand:** EHDIS
- **Connector Type:** Crimp
- **Contact Material:** Silver Tin Oxide
- **Contact Type:** Normally Open
- **Current Rating:** 40 A

## Images

![EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters,Pack of 2 - Image 1](https://m.media-amazon.com/images/I/61gZPrPUM2L.jpg)

## Questions & Answers

**Q: Can this relay be no and nc ? or just no ?**
A: These are just standard relays. The circuit you are controlling is NO (no power) until a control signal is received.

**Q: Can this be used to replace the relay on aftermarket HID kits?**
A: i was wondering that too, and I did some checking and think they will,,, the relay on the HID kit is 12 v 40 amp, 4 pin, and they look the same, and looks like the specs are the same

**Q: Sirve para Ford econoline 3500 2014?**
A: Hi, this relay is universal for all kinds of vehicle. Please kindly know and choose your needed specification of this item.
Thank you.

**Q: What are the dimensions of the relay box, not including the mount or connections?**
A: Hi, please know the dimensions of the relay box is 1.1 x 1.2 x1 inch.
Thank you.

## Frequently Bought Together

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-07*