---
product_id: 246984947
title: "Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty"
brand: "nilight"
price: "A$756"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/246984947-nilight-90015a-battery-switch-12-48v-waterproof-heavy-duty-battery
store_origin: AU
region: Australia
---

# 1250A momentary 275A continuous Waterproof design Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty

**Brand:** nilight
**Price:** A$756
**Availability:** ✅ In Stock

## Summary

> 🔌 Cut the Power, Keep the Adventure Alive!

## Quick Answers

- **What is this?** Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty by nilight
- **How much does it cost?** A$756 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/246984947-nilight-90015a-battery-switch-12-48v-waterproof-heavy-duty-battery)

## 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

- • **⚙️ Easy Operation:** Simple On/Off switch with clear position indicators.
- • **🔌 Power Management:** Effortlessly disconnects power to prevent battery drain.
- • **🔧 Complete Package:** Includes 4 bolts for easy installation and secure mounting.
- • **🛠️ Heavy Duty Build:** Durable ABS plastic housing ensures long-lasting safety.
- • **🔒 Versatile Compatibility:** Perfect for 12-48V systems across vehicles, boats, and RVs.

## Overview

The Nilight 90015A Battery Switch is a heavy-duty, waterproof power cut master switch designed for 12-48V systems. With a robust ABS plastic housing and a maximum momentary current of 1250A, it ensures safety and reliability for various applications, including cars, boats, and RVs. This switch effectively isolates the battery to prevent power draw when not in use, making it an essential accessory for any vehicle or marine enthusiast.

## Description

Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty

## Features

- Heavy Duty: ABS plastic housing, durable made for safety use, rear cover insulates terminals against any short of circuits, equipped with 4 sets of bolts.
- Operation: On/Off 2 positions, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V.
- Compatible: used for DC 12 - 48V systems to isolate and secure the electrical system, can stand alone or be locked together with other switch.Its purpose is to eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.
- Widely used for car, marine boat, RV, camper, travel trailer, truck, ATV, UTV, battery banks and other devices.
- Package include:1x On/Off battery switch,4 bolts incuded.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Nilight |
| Part number | 90015A |
| Item Weight | 45.4 g |
| Product Dimensions | 9.8 x 7.29 x 7.19 cm; 45.36 g |
| Item model number | 90015A |
| Size | On-Off Switch |
| Colour | On-Off Switch 275A |
| Style | Safety |
| Voltage | 12 Volts |
| Wattage | 21760 watts |
| Item Package Quantity | 1 |
| Switch Type | 1-way |
| Included components | On/Off battery switch |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Operation mode:** ON-OFF
- **Current rating:** 275 Amps
- **Operating voltage:** 48 Volts
- **Contact type:** Momentary
- **Connector type:** Screw terminal
- **Brand:** Nilight
- **Terminal:** Marine
- **Item dimensions L x W x H:** 9.8 x 7.3 x 7.2 centimetres
- **Circuit type:** 1-way
- **Actuator type:** Push Button

## Images

![Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty - Image 1](https://m.media-amazon.com/images/I/61fKk7hjAnL.jpg)
![Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty - Image 2](https://m.media-amazon.com/images/I/71G15J4XURL.jpg)
![Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty - Image 3](https://m.media-amazon.com/images/I/71n7yC-ff9L.jpg)
![Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty - Image 4](https://m.media-amazon.com/images/I/617Xr85bOuL.jpg)
![Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty - Image 5](https://m.media-amazon.com/images/I/71IkIMKqQ0L.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: I would like to use this to cut the power on my winch when not it use. Does anyone know if this will handle the draw when the winch is in use?**
A: Check your winches max current draw at it's max pull. Most 10k winches can go over 300-amps easy some over 350-amps. 

Always use switches, contact points and terminals that can handle more than your devices rated maximum current draw and max voltage, even if it's only 10% more. Don't size for nominal loads, size for max current and max voltage plus a safety factor. 

Wire charts (current to awg wire size) is a safe minimum size. If it says 4awg wire, go to 2awg. Copper is cheap and it will lower your circuits overall resistance and current draw while being safer. Do this and you wont get suprised the general wire chart that is probably written for a very spoecific type of wire strand size, jacket, etc. 

You can go down in fuse/breaker size, it will just blow/trip more often. You can go up one fuse size and, at this current level, that means only 10-amps more. So if your winch can draw a max of 300-amps, the largest fuse you should use is 310-amps. 

Momentary is very subjective. Without a quatitative number, size components for maximum current draw. 

Also, NEVER put a switch on a Negative, Common or Neutral wire.

**Q: can this be used with 4/0 cable lugs**
A: The switch doesn't care about the lug current capacity, just about physical characteristics of the lug, which unfortunately is not standardized.  If the lug is bulky at its connecting area to the cable, some allowance might have to be made in mounting.  The lug needs a fairly large hole opening where it connects to the switch, at least a 7/16 inch hole.  The metal area around the hole opening of the lug can't be too large or it will short out to the connector on the other side of the switch, so some grinding of the lug's squareness might be necessary.  Available thread on the switch terminals is more than adequate for a fairly thick lug.

**Q: I bought this to hook up to my rv battery case. i assumed it would come with instructions. does anyone have a good website showing how to hook it up?**
A: Really no need for instructions. I installed it in my camper, its purpose is to disrupt electrical connection. If you have one main power cable then connect from the battery to the switch and then main power to switch. If there's a bunch of connections to the power side and not sure then you can also install the switch on the negative side which usually goes to one chassis ground.

**Q: Will the switch prevent auto theft**
A: Only if the theft doesn’t know where the kill switch is. If it is placed in an accessible area they can still take vehicle.

## Frequently Bought Together

- Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty
- 10 Gauge Marine Wire,10 AWG 30ft Duplex Marine Grade Wire Tinned Copper Oxygen-Free Insulated Red& Black Electrical Cable for Boat/Automotive/RV/Camper/Trailer
- Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover

---

## 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.com.au/products/246984947-nilight-90015a-battery-switch-12-48v-waterproof-heavy-duty-battery](https://www.desertcart.com.au/products/246984947-nilight-90015a-battery-switch-12-48v-waterproof-heavy-duty-battery)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-29*