---
product_id: 357912654
title: "Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138"
brand: "opl5"
price: "$134831"
currency: COP
in_stock: true
url: https://www.desertcart.co/products/357912654-top-post-knife-blade-master-switch-12v-24v-knife-blade
store_origin: CO
region: Colombia
---

# 250A continuous, 750A momentary 12-24V compatibility Rust & corrosion resistant Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138

**Brand:** opl5
**Price:** $134831
**Availability:** ✅ In Stock

## Summary

> 🔧 Cut the Power, Not the Fun! ⚡

## Quick Answers

- **What is this?** Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138 by opl5
- **How much does it cost?** $134831 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/357912654-top-post-knife-blade-master-switch-12v-24v-knife-blade)

## Best For

- opl5 enthusiasts

## Why This Product

- Trusted opl5 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🔒 Safety First:** Engineered with durable brass and copper plating for ultimate safety.
- • **🌊 Versatile Use:** Perfect for cars, boats, RVs, and more—your go-to power solution!
- • **🔋 Battery Guardian:** Extends battery life by preventing unnecessary drain and potential hazards.
- • **🛠️ Peace of Mind:** One-year warranty and lifetime tech support—your satisfaction is our priority!
- • **⚙️ Effortless Operation:** Simple on/off lever for quick power cut-off—no hassle!

## Overview

The Top Post Knife Blade Master Switch is a robust battery isolator designed for 12V and 24V systems, offering a reliable solution for disconnecting power in various vehicles including cars, boats, and RVs. With a high operating capacity of 250A and momentary capacity of 750A, this switch ensures safety and longevity for your battery while being easy to operate and install.

## Description

Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138

## Features

- Safety＆Security：The knife battery disconnect switch made of durable brass and electroplated with copper, rust and corrosion resistant, durable made for safety use.
- Wide Application: DC 12-24V systems, 250A operating and 750A momentary at DC 12V, battery switch are fit for car, boat, truck, Marine, vehicle, RV, ATV etc.
- Easy to Operate:Assemble the battery shut off switch to the negative cable. There are on/off 2 position, just need to lift the lever up the power will be cut.
- Protect Battery: If batteries are empty and not charged for a long time that will shorten the life causing you to replace it. Also it will Prevents shorts and fires when working on electrical systems.
- Warranty: Please buy with confidence ,we offer ONE YEAR item warranty and lifetime technical support. Please feel free to contact seller by email if you have any questions.

## Product Details

- **Operation Mode:** ON-OFF
- **Current Rating:** 250 Amps
- **Operating Voltage:** 24 Volts
- **Brand:** OPL5
- **Mounting Type:** Surface Mount
- **Actuator Type:** Hinge Lever
- **Contact Material:** Brass
- **International Protection Rating:** IP54
- **Number of Positions:** 2
- **Control Method:** App

## Images

![Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138 - Image 1](https://m.media-amazon.com/images/I/619QXrnsiHS.jpg)
![Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138 - Image 2](https://m.media-amazon.com/images/I/71-Y+qp2l-S.jpg)
![Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138 - Image 3](https://m.media-amazon.com/images/I/71uvKWYdpfS.jpg)
![Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138 - Image 4](https://m.media-amazon.com/images/I/71KBtB1-JCS.jpg)
![Top Post Knife Blade Master Switch 12V 24V Knife Blade Switch Battery Isolator Disconnect Power Cut Offf for Marine RV Car Boat 20138 - Image 5](https://m.media-amazon.com/images/I/71xdmJ8v7YS.jpg)

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**Shop now:** [https://www.desertcart.co/products/357912654-top-post-knife-blade-master-switch-12v-24v-knife-blade](https://www.desertcart.co/products/357912654-top-post-knife-blade-master-switch-12v-24v-knife-blade)

---

*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-02-21*