---
product_id: 595988921
title: "Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red"
brand: "spartan power"
price: "R$1447"
currency: BRL
in_stock: true
reviews_count: 5
category: "Spartan Power"
url: https://www.desertcart.com.br/products/595988921-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected
store_origin: BR
region: Brazil
---

# 300A continuous heavy-duty rating Supports 12V to 48V DC systems Versatile surface, front, or rear panel mounting Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red

**Brand:** spartan power
**Price:** R$1447
**Availability:** ✅ In Stock

## Summary

> 🔴 Cut the power, not the adventure—Spartan Power keeps you in control!

## Quick Answers

- **What is this?** Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red by spartan power
- **How much does it cost?** R$1447 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/595988921-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected)

## Best For

- spartan power enthusiasts

## Why This Product

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

## Key Features

- • **Powerhouse Performance:** Handles up to 900A cranking surge for 30 seconds—built for serious power demands.
- • **Flexible Mounting Options:** Surface, front, or rear panel mount to fit your custom installation needs effortlessly.
- • **Ignition Protected Safety:** Certified safe for gasoline-powered boats and vehicles, ensuring worry-free use.
- • **Lifetime Warranty Assurance:** Built tough with a lifetime warranty—because your power switch should last as long as your adventures.
- • **Universal Voltage Compatibility:** Seamlessly supports 12V to 48V DC systems—perfect for RVs, marine, and automotive setups.

## Overview

The Spartan Power 300A ON/OFF Battery Disconnect Switch is a heavy-duty, ignition-protected rotary switch designed for 12V to 48V DC systems in RVs, marine, and automotive applications. With a continuous rating of 300A, intermittent 500A for 5 minutes, and a cranking surge capacity of 900A for 30 seconds, it ensures reliable power isolation. Its versatile mounting options and lifetime warranty make it a trusted choice for professionals seeking durable, safe battery management.

## Description

The Spartan Power mini on-off battery switch with knob switches a single battery to a single load group. The ignition protected battery switch is safe for installation aboard gasoline powered boats, RV and solar applications. Case design allows surface, front panel, or rear panel mounting. The Isolating cover with snap-on sections protects rear contacts. The Spartan Power battery switch has a crank rating of 900A for 30 seconds, 500A for 5 minutes and 300A continuous rating. Comes in two colors, RED or BLACK. Spartan Power 300A ON/OFF Battery Switch Specifications: Switch Type: Single Circuit ON-OFF Color: Red or Black Switch Positions: 2 Battery Combine: No Alternator Field Disconnect: No Maximum Voltage: 48V DC Stud Size: 3/8" Terminal Stud Torque: 120 in-lb (13.56 Nm) Continuous Rating: 300A Intermittent Rating: 500A (5 min) Cranking Rating: 900A (30 seconds) Battery Inputs: 1 Cable Clearance For 4/0 AWG Cables 1.12in (28.45mm) Cable Size to Meet Ratings: 4/0 AWG (120mm²) Mounting Holes: Accept #10 Screw Stud Material: Tinned Copper Stud Torque: 120 in-lb (13.56 Nm) Terminal Stud Size: 3/8" - 16(M10) Weight: 0.6 lbs

Review: Good product. - I bought this one and a cheaper one. Buy the cheaper on. Except for being a darket color and having a name on it they both are identical
Review: Works as advertised! - Does what it is supposed to do. I am using 2/0 cable and had to trim the case a bit to make them fit. so make sure your wire and lugs are smaller than 2/0 or trimming will be necessary.

## Features

- Spartan Power ON/OFF battery switches eliminate any power draw from the battery bank when your RV, van, truck, boat etc is not in use. Disconnect your batteries safely time after time. Lifetime Warranty! Max 48VDC
- IGNITION PROTECTED: Spartan Power battery switch has a crank rating of 900A for 30 seconds, 500A for 5 minutes and 300A continuous rating. Maximum Operating Voltage: 48V
- COLORS: Comes in two colors, RED or BLACK
- MOUNTING OPTIONS: Case design allows surface, front panel, or rear panel mounting. Due to vast array of mounting options, screws are not included.
- NEED CABLES? These battery switches pair perfectly with Spartan Power Made in the USA 3/8" terminated battery cables. Accepts up to 4/0 AWG battery cables on it's 3/8" posts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09WZF17KB |
| Actuator Type | Rotary |
| Best Sellers Rank | #199,725 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #162 in Electrical Equipment Battery Switches |
| Brand | Spartan Power |
| Brand Name | Spartan Power |
| Circuit Type | 1-way |
| Colour | Red |
| Compatible Devices | RV, marine, and automotive devices requiring 12V to 48V DC power supply |
| Compatible with Vehicle Type | RV, Marine, Automotive |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Screws |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | App |
| Control Type | Knob |
| Controller Type | Push Button |
| Current Rating | 300 Amps |
| Customer Reviews | 4.7 out of 5 stars 287 Reviews |
| International Protection Rating | IP54 |
| Item Dimensions | 8.3 x 8.3 x 9.1 Centimeters |
| Manufacturer | Spartan Power |
| Material Type | Copper |
| Model Number | SP-BS300A-RED |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 2 |
| Operation Mode | ON-OFF |
| Part Number | SP-BS300A-RED |
| Specification Met | UL, IEC 60669-2-1:2002, IP54 |
| Switch Type | Knob |
| Terminal | Screw |
| UPC | 810019984327 |
| Unit Count | 1.0 Count |
| Wattage | 14400 Watts |

## Product Details

- **Brand:** Spartan Power
- **Connector Type:** Screws
- **Contact Type:** Normally Open
- **Current Rating:** 300 Amps
- **Operation Mode:** ON-OFF

## Images

![Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red - Image 1](https://m.media-amazon.com/images/I/61gm46lFOLL.jpg)
![Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red - Image 2](https://m.media-amazon.com/images/I/712Je3xRR5L.jpg)
![Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red - Image 3](https://m.media-amazon.com/images/I/71bIe-LFsYL.jpg)
![Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red - Image 4](https://m.media-amazon.com/images/I/71Hu2ywZLtL.jpg)
![Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red - Image 5](https://m.media-amazon.com/images/I/71xQD1JUFzL.jpg)

## Questions & Answers

**Q: can I use this on a 12 battery bank for a small solar system - max 250amp dc ..... ???**
A: Yes, this switch has a max of 48V, so 12V 250A is fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product.
*by R***4 on 1 July 2026*

I bought this one and a cheaper one. Buy the cheaper on. Except for being a darket color and having a name on it they both are identical

### ⭐⭐⭐⭐⭐ Works as advertised!
*by B***Z on 1 July 2026*

Does what it is supposed to do. I am using 2/0 cable and had to trim the case a bit to make them fit. so make sure your wire and lugs are smaller than 2/0 or trimming will be necessary.

### ⭐⭐⭐⭐⭐ Solid, durable and built to last.
*by R***S on 19 January 2026*

Used this on a travel trailer and installed it right on the battery box. Was easy to wire in and seems well made and durable. Connection posts are solid. I think this will hold up to the elements and is a good protection for my trailer. I did need to buy a different set of nuts and bolts for my specific application, but that was expected.

## Frequently Bought Together

- Spartan Power Battery ON/Off Disconnect Switch 300A - Ignition Protected, Heavy Duty Cutoff Switch for RV, Marine, and Automotive Battery - 12V to 48V - Red
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**Shop now:** [https://www.desertcart.com.br/products/595988921-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected](https://www.desertcart.com.br/products/595988921-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-09-29*