---
product_id: 427000412
title: "Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black"
brand: "blue sea systems"
price: "NT$5137"
currency: TWD
in_stock: true
reviews_count: 5
category: "Blue Sea Systems"
url: https://www.desertcart.tw/products/427000412-blue-sea-systems-m-series-mini-on-off-battery-switch
store_origin: TW
region: Taiwan
---

# 500A max current rating IP66 waterproof protection Ignition protected for marine safety Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black

**Brand:** blue sea systems
**Price:** NT$5137
**Availability:** ✅ In Stock

## Summary

> 🔋 Command your power like a pro—switch smart, stay unstoppable!

## Quick Answers

- **What is this?** Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black by blue sea systems
- **How much does it cost?** NT$5137 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/427000412-blue-sea-systems-m-series-mini-on-off-battery-switch)

## Best For

- blue sea systems enthusiasts

## Why This Product

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

## Key Features

- • **Robust & Reliable:** Continuous 300A rating with a 500A intermittent surge capacity supports high-demand electrical systems.
- • **Compact Yet Commanding:** Miniature footprint with a removable knob fits perfectly in tight spaces without compromising control.
- • **Built to Brave the Elements:** IP66 waterproof rating means this switch thrives in the harshest marine environments.
- • **Power Through Without Pause:** Make-before-break design ensures seamless battery switching with zero power interruption.
- • **Marine-Grade Safety Certified:** Ignition protected and ISO 8846 compliant for worry-free installation on gasoline-powered boats.

## Overview

The Blue Sea Systems m-Series Mini On-Off Battery Switch is a compact, marine-grade electrical switch designed for single-circuit battery control. Rated for continuous 300A and intermittent 500A at 48V DC, it features a make-before-break contact design for uninterrupted power transfer. With IP66 waterproofing and ignition protection meeting ISO 8846 and ABYC standards, it ensures safe, reliable operation aboard gasoline-powered boats. Its robust build and premium warranty make it the trusted choice for professionals demanding durability and performance.

## Description

Mini Battery Switch, MFG# 6005200, Black, 300A cont., 500A int., 48VDC. Positions: single-circuit on-off. 2.83"H x 2.83"W x 3.1"D. With removable knob.

Review: Blue Sea Systems makes probably the best switch out there. UL and CE ratings confirm its quality. Lots of similar looking non-rated copy cats on the market, but they cut corners for cost and are not rated switches. If you want a quality switch you can trust, this is a great option.
Review: Amazing product love blue sea system products

## Features

- Single Circuit ON-OFF. Switches a single battery to a single load group
- IP66 waterproof, ISO 8846 and meets ABYC requirements. Ignition protected—safe for installation aboard gasoline powered boats
- Make before break contact design allows switching between battery banks without power interruption
- Continuous Rating: 300A, Maximum Voltage: 48V DC
- Robust redesign done in July 2017
- Premium warranty and support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00558LSJE |
| Actuator Type | Push Button |
| Batteries Included | No |
| Brand | Blue Sea Systems |
| Circuit Type | 1-way |
| Colour | Black |
| Connectivity Protocol | Wi-Fi |
| Contact Material | Copper |
| Controller Type | Push Button |
| Country of Origin | USA |
| Current Rating | 500 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (465) |
| Date First Available | 6 August 2012 |
| Global Trade Identification Number | 00190283665048, 00632085600624 |
| International Protection Rating | IP66 |
| Item Dimensions LxWxH | 17.8 x 10.2 x 7.6 Centimeters |
| Item Weight | 294 g |
| Item dimensions L x W x H | 17.8 x 10.2 x 7.6 Centimeters |
| Length | 6.63 Inches |
| Manufacturer | Blue Sea Systems |
| Material Type | Copper |
| Mounting Type | Wall Mount |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Operation Mode | ON-OFF |
| Size | lockable = none | amps - max = none | afd = none | |
| Style | On-off W/Knob |
| Terminal | marine |
| Usage | personal |
| Wattage | 14400 Watts |
| Weight | 0.7 Pounds |
| Width | 3.88 Inches |

## Product Details

- **Brand:** Blue Sea Systems
- **Current Rating:** 500 Amps
- **Operation Mode:** ON-OFF
- **Switch Type:** Push Button
- **Terminal:** marine

## Images

![Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black - Image 1](https://m.media-amazon.com/images/I/31GmleWz3FL.jpg)
![Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black - Image 2](https://m.media-amazon.com/images/I/31J6mbuhNaL.jpg)
![Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black - Image 3](https://m.media-amazon.com/images/I/31KniAOKPpL.jpg)
![Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black - Image 4](https://m.media-amazon.com/images/I/41DUYU7myPL.jpg)
![Blue Sea Systems m-Series Mini On-Off Battery Switch with Knob, Black - Image 5](https://m.media-amazon.com/images/I/41aH0DIBiVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 9 February 2025*

Blue Sea Systems makes probably the best switch out there. UL and CE ratings confirm its quality. Lots of similar looking non-rated copy cats on the market, but they cut corners for cost and are not rated switches. If you want a quality switch you can trust, this is a great option.

### ⭐⭐⭐⭐⭐ Review
*by Z***R on 28 January 2022*

Amazing product love blue sea system products

### ⭐⭐⭐⭐⭐ Review
*by J***I on 2 September 2025*

Great support and instructions available, built very well and exceeds my expectation of quality. Easy to wire and mount, just wish it came with mounting hardware like screws or nuts and bolts. Best value for my money with such high standards of quality in a switch that is used very frequently. Really makes my battery life last with the ability to use as a disconnect switch.

## Frequently Bought Together

- Blue Sea Systems 6006200 m-Series Battery Switch ON/OFF with Knob, Black
- Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover
- 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

---

## 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.tw/products/427000412-blue-sea-systems-m-series-mini-on-off-battery-switch](https://www.desertcart.tw/products/427000412-blue-sea-systems-m-series-mini-on-off-battery-switch)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-02-02*