--- product_id: 518343259 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: "฿5054" currency: THB in_stock: false reviews_count: 5 category: "Spartan Power" url: https://www.desertcart.co.th/products/518343259-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected store_origin: TH region: Thailand --- # 900A cranking surge capacity 300A continuous current rating Front/rear panel mounting with screws included 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:** ฿5054 **Availability:** ❌ Out of Stock ## Summary > 🔋 Take charge of your power—because your battery deserves the Spartan edge! ## 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?** ฿5054 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/518343259-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 - • **Effortless Operation:** Intuitive 2-position rotary switch with a satisfying click for instant feedback. - • **Heavy-Duty Durability:** Engineered to handle 900A surge for 30 seconds—built for ignition protection. - • **Unmatched Power Control:** Seamlessly disconnect your battery to prevent drain and extend lifespan. - • **Trusted by Pros & DIYers:** Spartan Power’s rugged design is the go-to for RV, marine, and automotive enthusiasts. - • **Versatile Mounting Options:** Install front or rear panel with included screws—fits your setup perfectly. ## Overview The Spartan Power Battery ON/Off Disconnect Switch is a heavy-duty, ignition-protected rotary switch rated for 300A continuous current and surges up to 900A. Designed for 12V to 48V DC systems, it prevents battery drain by fully disconnecting power when not in use. Its robust copper contacts, versatile mounting options, and simple 2-position design make it ideal for RVs, marine vessels, and automotive applications, ensuring reliable, long-lasting battery protection trusted by professionals and enthusiasts alike. ## Description Take Control - Save your battery and control your DC current with the Spartan Power Mini On/Off Switch, a simple yet durable and effective knob-type switch that allows you to completely remove the power being drawn from your battery or solar installation when not in use, preventing unnecessary wear and extending the life of your battery or power bank. 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. Spartan Power 300A ON/OFF Battery Switch Specifications: Switch Type: Single Circuit ON-OFF; 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: Very sturdy Review: Decent switch. Average price fast delivery. ## Features - Save Your Battery: The Spartan Power On/Off Battery Switch prevents any current from being drawn from the battery when your RV, van, boat, or car is not in use; Disconnect your battery safely and extend its life! - Ignition Protected: Our switch has a crank rating that withstands 900A for 30 seconds, 500A for 5 minutes, and 300A continuously, protecting against fluctuations in current during ignition - Simple, 2 Position Design: Our simple design is easy to read and to operate, simply turn the knob to either the On or Off position, and a satisfying click will let you know it's changed - Screws Included: The casing design allows for front or rear panel mounting, and we are now including screws to facilitate installation on your DC system - Giving Power to The People: Helping people arm themselves with the right tools and accessories, Spartan Power manufactures ultra-high quality, durable, and heavy duty products; Trusted by professionals, enthusiasts, and DIYers everywhere ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09WZF17KB | | Actuator Type | Push Button | | Best Sellers Rank | 471,226 in Automotive ( See Top 100 in Automotive ) 1,082 in Car Battery Switches | | Brand | Spartan Power | | Circuit Type | 2-way | | Colour | Red | | Connectivity Protocol | Wi-Fi | | Connector Type | screws | | Connector type | screws | | Contact Material | Copper | | Contact Type | Normally Open | | Contact type | Normally Open | | Controller Type | Push Button | | Current Rating | 300 Amps | | Current rating | 300 Amps | | Customer Reviews | 4.6 out of 5 stars 354 Reviews | | International Protection Rating | IP54 | | Item Dimensions | 8.3 x 8.3 x 9.1 centimetres | | Item height | 3.6 inches | | Manufacturer | Spartan Power | | Material | Copper | | Model Number | SP-BS300A-RED | | Mounting Type | Panel Mount | | Number of Positions | 2 | | Operation Mode | Off,On-off | | Operation mode | Off,On-off | | Specification Met | UL | | Switch Type | Rotary | | Switch type | Rotary | | Terminal | marine | | UPC | 810019984327 | | Unit Count | 1.0 Count | | Wattage | 14400 watts | ## Product Details - **Brand:** Spartan Power - **Circuit type:** 2-way - **Connector type:** screws - **Contact type:** Normally Open - **Current rating:** 300 Amps - **Item dimensions L x W x H:** 8.3 x 8.3 x 9.1 centimetres - **Material:** Copper - **Operation mode:** Off,On-off - **Switch type:** Rotary - **Terminal:** marine ## 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/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 4](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 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 ### ⭐⭐⭐⭐⭐ Very sturdy *by T***U on 28 May 2024* ### ⭐⭐⭐⭐⭐ Decent switch. Average price fast delivery. *by S***Z on 4 January 2026* ### ⭐⭐⭐⭐⭐ Solid, durable and built to last. *by R***S on 19 January 2026* ## 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 - TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing - SELTERM 10pcs 4/0 AWG - 5/16" Stud - Wire Lugs, Heavy Duty Battery Cable Lugs, Ring Terminals, Battery Cable Ends,0000 Gauge Terminals, UL Bare Copper Eyelets Electrical Battery Terminal Connectors --- ## 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.co.th/products/518343259-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected](https://www.desertcart.co.th/products/518343259-spartan-power-battery-on-off-disconnect-switch-300a-ignition-protected) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-25*