---
product_id: 604442117
title: "Battery Disconnect Switch 300A Master Disconnector Isolator"
brand: "nilight"
price: "1389022₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Nilight"
url: https://www.desertcart.vn/products/604442117-battery-disconnect-switch-300a-master-disconnector-isolator
store_origin: VN
region: Vietnam
---

# 300A continuous current rating Secure On-Off master disconnect Durable ABS & copper build Battery Disconnect Switch 300A Master Disconnector Isolator

**Brand:** nilight
**Price:** 1389022₫
**Availability:** ✅ In Stock

## Summary

> 🔋 Cut the power, not your freedom — master your battery with Nilight!

## Quick Answers

- **What is this?** Battery Disconnect Switch 300A Master Disconnector Isolator by nilight
- **How much does it cost?** 1389022₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/604442117-battery-disconnect-switch-300a-master-disconnector-isolator)

## 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

- • **Built to Last:** Heavy-duty ABS plastic housing paired with premium copper terminals ensures abrasion resistance and long-term durability.
- • **Lock & Secure:** Optional lockable design prevents accidental power drain and unauthorized battery use, giving you peace of mind.
- • **Power Cutoff Mastery:** Instantly isolate your battery with a rugged 300A rated switch designed for ultimate safety and control.
- • **IP54 Waterproof Rating:** Engineered to withstand marine and outdoor environments, perfect for adventurous professionals on the move.
- • **Universal Compatibility:** Seamlessly fits 12-32V DC systems across cars, boats, RVs, ATVs, and more — your all-in-one power guardian.

## Overview

The Nilight Battery Disconnect Switch is a heavy-duty, rotary On-Off isolator rated for 300A continuous current and 450A intermittent, designed to safely cut power in 12-32V DC systems. Built with abrasion-resistant ABS plastic and premium copper terminals, it offers durable, lockable control for vehicles, boats, RVs, and more, backed by an IP54 waterproof rating for reliable outdoor use.

## Description

Buy Nilight Battery Disconnect Switch 300A Master Disconnector Isolator | 12V-48V On Off Power Cutoff Switches Waterproof Heavy Duty for Marine Boat Car RV ATV UTV Yacht: Battery Switches - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Battery switch E - Great product.
Review: POS - cheap junk I took it out of the box and the switch popped off. I put it back but the switch easily over travels outside of the on/off range. I'm done trusting desertcart products for electrical use. If someones going to burn my trailer down it's going to be me

## Features

- Heavy Duty: ABS plastic housing and premium copper terminal, durable made for safety use, not easy to aging and abrasion resistant, to ensure maximum strength and durability for long lasting usage.
- Purpose: eliminate any power from the battery when vehicle or boat is not in use, disconnects the battery safely. Avoid battery drain off.
- Operation: On-Off, 2 positions, Continuous Rating : 300Amps 32VDC Max. Intermittent Rating : 450 Amps, Cranking Rating : 1000 Amps 30 sec.
- Compatible: used for 12 - 32VDC systems to isolate and secure the electrical system, can stand alone or be locked together with other switch.Widely used for cars, marine boats, RVs, campers, travel trailers, trucks, ATVs, UTVs, battery banks and other devices.
- Package include:1x 300A battery disconnect switch with a wiring diagram

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CR5GZ8H6 |
| Actuator Type | Rotary |
| Best Sellers Rank | #509 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Battery Switches |
| Brand | Nilight |
| Brand Name | Nilight |
| Circuit Type | 1-way |
| Color | 1Pcs On-Off Switch 300A |
| Compatible Devices | cars, marine boats, RVs, campers, travel trailers, trucks, ATVs, UTVs, battery banks |
| Compatible with Vehicle Type | car, marine boats, RVs, campers, travel trailers, trucks, ATVs, UTVs |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Current Rating | 300 A |
| Customer Reviews | 3.7 out of 5 stars 63 Reviews |
| EU Spare Part Availability Duration | 2 years |
| Included Components | 1x 300A battery disconnect switch with a wiring diagram |
| International Protection Rating | IP54 |
| Item Dimensions | 1 x 1 x 1 inches |
| Lower Temperature Rating | 1 °C |
| Manufacturer | Nilight |
| Material Type | Copper, Plastic |
| Model | 90330A |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 12 volts_of_direct_current |
| Operation Mode | ON-OFF |
| Part Number | 90330A |
| Specification Met | 1 |
| Switch Type | Kill Switch |
| Terminal | Screw |
| UPC | 840323914291 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 1 °C |

## Product Details

- **Brand:** Nilight
- **Connector Type:** Plug In
- **Contact Type:** Normally Open
- **Current Rating:** 300 A
- **Item dimensions L x W x H:** 1 x 1 x 1 inches
- **Material:** Copper, Plastic
- **Operating Voltage:** 12 volts_of_direct_current
- **Operation Mode:** ON-OFF
- **Switch Type:** Kill Switch
- **Terminal:** Screw

## Images

![Battery Disconnect Switch 300A Master Disconnector Isolator - Image 1](https://m.media-amazon.com/images/I/61oqNZe2idL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Battery switch E
*by A***. on March 25, 2026*

Great product.

### ⭐ POS
*by E***N on June 29, 2026*

cheap junk I took it out of the box and the switch popped off. I put it back but the switch easily over travels outside of the on/off range. I'm done trusting amazon products for electrical use. If someones going to burn my trailer down it's going to be me

### ⭐⭐⭐⭐⭐ That it does what it says it’s gonna do
*by A***R on April 22, 2026*

It takes up very little space and works perfectly

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**Shop now:** [https://www.desertcart.vn/products/604442117-battery-disconnect-switch-300a-master-disconnector-isolator](https://www.desertcart.vn/products/604442117-battery-disconnect-switch-300a-master-disconnector-isolator)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-09-28*