---
product_id: 319638089
title: "weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires"
brand: "weideer"
price: "HK$131"
currency: HKD
in_stock: true
reviews_count: 13
category: "Weideer"
url: https://www.desertcart.hk/products/319638089-weideer-12v-reverse-polarity-switch-momentary-power-jack-rocker-switch
store_origin: HK
region: Hong Kong
---

# 20A high current rating DPDT polarity reversing action Easy 4-pin quick wiring weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires

**Brand:** weideer
**Price:** HK$131
**Availability:** ✅ In Stock

## Summary

> 🔄 Rock your RV control with the switch that flips the script!

## Quick Answers

- **What is this?** weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires by weideer
- **How much does it cost?** HK$131 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/319638089-weideer-12v-reverse-polarity-switch-momentary-power-jack-rocker-switch)

## Best For

- weideer enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by the Pros:** ETL certified and backed by 746+ positive reviews, join thousands upgrading their RV controls.
- • **Plug & Play Simplicity:** Includes jumper bars and 4-pin wiring harness for effortless installation—no electrician needed.
- • **Power Up with Confidence:** Handles a robust 20 amps at 12V DC for reliable motor control without compromise.
- • **Flip the Direction Instantly:** DPDT momentary switch reverses polarity seamlessly, perfect for RV and trailer motor applications.
- • **Built to Last, Designed to Perform:** Durable hardened plastic housing with IP54 rating ensures protection against dust and splashes.

## Overview

The weideer 12V Reverse Polarity Rocker Switch is a DPDT 4-pin momentary switch designed for easy polarity reversal in RV and trailer motor controls. Rated for 20 amps at 12 volts DC, it features a durable, panel-mount design with included wiring harness and jumper bars for quick installation. With an IP54 rating and ETL certification, it offers reliable, long-lasting performance trusted by hundreds of users.

## Description

desertcart.com: weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires : Industrial & Scientific

Review: Easy to install works perfect - Worked great and easy to install in my camper. Simple 4 post connection I recommend
Review: Great quality of material - Easy to install, working perfectly, great value for your money, the quality of material is great condition,and easy to use, the wiring, harness included made for ease of installation, the look just as described,great durability made of hardened plastic, recommend to all great purchase

## Features

- This switch is momentary Automatic Reset action, Resetting returns to off when released.This polarity reversing switch replacement for most RV/trailer power tongue Jacks wheel.switch comes with jumper bars for polarity reversing,connect power and ground and two DC motor leads and the switch will reverse the motor direction.
- Pin Quantity:4 pin, Action:Momentary Lockless. Contact Type:DPDT.
- Voltage¤t:15A 250V AC/ 20A12V DC.Product model:KCD2-7
- Switch Size: 45x20x45mm/1.75''x0.76''x1.77''(L*W*H). Wires length: 21.2cm/8.3'' .Hole Size:44 x 24mm / 1.7"x 0.95"(L * W).
- Product package:1pcs rocker switch+4pcs Connect wires.If there is any problem with the switch you received, please contact me by email in time and I will reply you within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08T77K2YY |
| Actuator Type | Rocker |
| Best Sellers Rank | #12,577 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Rocker Switches |
| Brand | weideer |
| Brand Name | weideer |
| Circuit Type | 2-way |
| Color | Black RET EXT 4pin |
| Compatible with Vehicle Type | RV, Trailer |
| Connectivity Protocol | X-10 |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Control Method | Touch |
| Current Rating | 20 Amps |
| Customer Reviews | 4.6 out of 5 stars 746 Reviews |
| Insulation Resistance | 1000 Megaohms |
| International Protection Rating | IP54 |
| Item Dimensions | 1.57 x 0.79 x 1.57 inches |
| Manufacturer | weideer |
| Material Type | Plastic |
| Model | CA-KCD2-7-223-4P-X |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 4 |
| Operating Voltage | 250 Volts |
| Operation Mode | ON-OFF-ON |
| Part Number | CA-KCD2-7-223-4P-X |
| Specification Met | ETL |
| Switch Type | Rocker |
| Terminal | Screw |
| UPC | 706898006574 |
| Unit Count | 1 Count |
| Wattage | 240 watts |

## Product Details

- **Operation Mode:** ON-OFF-ON
- **Current Rating:** 20 Amps
- **Operating Voltage:** 250 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Plug In
- **Brand:** weideer
- **Terminal:** Screw
- **Item dimensions L x W x H:** 1.57 x 0.79 x 1.57 inches
- **Circuit Type:** 2-way
- **Actuator Type:** Rocker

## Images

![weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires - Image 1](https://m.media-amazon.com/images/I/71P3ktGv4NL.jpg)
![weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires - Image 2](https://m.media-amazon.com/images/I/71GzaxwQj0S.jpg)
![weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires - Image 3](https://m.media-amazon.com/images/I/714cpAqX7yS.jpg)
![weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires - Image 4](https://m.media-amazon.com/images/I/71jSMbQI1PS.jpg)
![weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires - Image 5](https://m.media-amazon.com/images/I/71zerH5dLsS.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this switch waterproof?**
A: Yes, it's waterproof.  Comes with gel-type switch cover.  ALTHOUGH, my switch has since died, but it appears there aren't many to deal with, so I will probably order the same one as a replacement.

**Q: What's the difference between momentary and latching?**
A: Momentary-(Press, release, the switch returns to its original position)
Latching-(Press, release, switch lock )

**Q: Is the latching version 2 (on-on) or 3 (on-off-on) positions?**
A: The latching version is3 (on-off-on) positions

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install works perfect
*by D***L on May 18, 2026*

Worked great and easy to install in my camper. Simple 4 post connection I recommend

### ⭐⭐⭐⭐⭐ Great quality of material
*by O***D on January 9, 2026*

Easy to install, working perfectly, great value for your money, the quality of material is great condition,and easy to use, the wiring, harness included made for ease of installation, the look just as described,great durability made of hardened plastic, recommend to all great purchase

### ⭐⭐⭐⭐⭐ Perfect!
*by F***S on June 19, 2024*

My original switch wires were soldered to the terminals. That original wire is at least 12gauge in thickness. That makes sense, as the trailer jack draws A LOT of amps. (The inline fuse is 30A, which blows immediately when the jack hits the max extension!) That said, I was surprised at how small (probably16 gauge) the included wire pigtails were. I didn't think a regular crimp would be adequate for splicing the wires, so I soldered the wires first and covered the splice with a heat shrink fitting (Solder seal wire connector) The switch fit perfectly, and works great. I hope the pigtails are adequate for the amperage load. I'll open up the trailer jack panel and check down the road. Footnote: Several people commented, in their reviews, that the switch works backwards. This switch will REVERSE POLARITY. One direction makes the jack go UP, and the other direction makes it go DOWN. If they are backwards in relation to their labels, switch the wires that go to your motor! ...basic electricity.

## Frequently Bought Together

- weideer 12V Reverse Polarity Switch Momentary Power Jack Rocker Switch DC Motor Control DPDT 4 Pin(ON)-Off-(ON) 20A 12 Volt DC RV Switch with Wires
- weideer 1 Way Rocker Switch Panel Housing Black Anodized Aluminium Switch Shell Bracket with Screw for Car Boat Trailer K-M075-1K-LS
- weideer 12V Switch ON/Off with Panel 4Pin Rocker Switch DPST Trailer Camper Light Toggle Switch with Wires

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hk/products/319638089-weideer-12v-reverse-polarity-switch-momentary-power-jack-rocker-switch](https://www.desertcart.hk/products/319638089-weideer-12v-reverse-polarity-switch-momentary-power-jack-rocker-switch)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-07-07*