--- product_id: 600021757 title: "Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter" brand: "nilight" price: "HK$196" currency: HKD in_stock: true category: "Nilight" url: https://www.desertcart.hk/products/600021757-nilight-40a-inline-circuit-breaker-12-24v-dc-manual-reset store_origin: HK region: Hong Kong --- # 40A high current rating Water-resistant cover 12-24V DC compatibility Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter **Brand:** nilight **Price:** HK$196 **Availability:** ✅ In Stock ## Summary > ⚡ Reset, Protect, Repeat — Power up your ride with Nilight’s unstoppable circuit breaker! ## Quick Answers - **What is this?** Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter by nilight - **How much does it cost?** HK$196 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/600021757-nilight-40a-inline-circuit-breaker-12-24v-dc-manual-reset) ## 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 - • **Effortless Manual Reset:** Push-button reset eliminates fuse replacements and doubles as a kill switch for ultimate control. - • **Built to Brave the Elements:** Waterproof cover and alloy construction ensure durability under extreme temperatures and moisture. - • **Robust 40A Overload Protection:** Safeguards your car audio, marine, and RV systems from damaging current surges with precision. - • **Space-Saving, Panel-Mount Design:** Compact footprint fits perfectly near batteries or on firewalls, optimizing your installation space. - • **Universal Fit for 3-15 AWG Wires:** Seamlessly integrates with a wide range of vehicle and marine electrical setups without hassle. ## Overview The Nilight 40A Inline Circuit Breaker is a rugged, manual-reset fuse holder designed for 12-24V DC systems. Featuring a high 40-amp rating, water-resistant cover, and durable alloy construction, it protects automotive, marine, and RV electrical circuits from overload damage. Its push-button reset eliminates fuse replacements and doubles as a kill switch, while its compact, panel-mount design fits 3-15 AWG wires, making it an essential upgrade for reliable, maintenance-free power protection. ## Description Buy Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter: Fuse Holders - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Manual reset circuit breaker: Manual reset button, no need to replace the inline fuse. When the circuit current exceeds the rated current, the fuse burns out and automatically disconnects, which can well protect the electrical appliances. The unique push button reset can also be used as a kill switch. - Protect your system: The circuit breaker can protect car audio, low-voltage, and high-current electrical equipment from current overload damage. Allow to charge or maintain the battery without having to disconnect all the wires. - High quality: Car audio inline circuit breaker fuse made of alloy materials, water resistant cover, good conductivity, strong temperature and pressure resistance. Nilight car audio fuse holders 100% pass professional electrical performance test and aging test. - Application: The waterproof 12v circuit breaker is surface Mount, mount on panel or firewall. Typically used in auxiliary and accessory circuits for trucks, buses, RV's, ATV winches and marine applications. Also used in battery charges and DC sound amplifier system, vehicle audio video system, boat, marine and all 12V-24V systems. - Package Include: 1 x 12V-24V DC 40A Auto Audio Circuit Breaker Reset Fuse holder ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CFYBVG55 | | Best Sellers Rank | #16,352 in Automotive ( See Top 100 in Automotive ) #48 in Automotive Replacement Fuse Holders | | Brand Name | Nilight | | Circuit Breaker Type | Standard | | Current Rating | 40 A | | Customer Reviews | 4.2 4.2 out of 5 stars (59) | | Global Trade Identification Number | 00840323905558 | | Included Components | 1PC 40A Circuit Breaker | | Manufacturer | Nilight | | Model | 50124R | | Mounting Type | Screw Mount | | Number of Items | 1 | | Number of Packs | 1 | | Number of Poles | 2 | | Part Number | 50124R | | UPC | 840323905558 | | Unit Count | 1 Count | | Voltage | 24 volts | ## Product Details - **Brand:** Nilight - **Circuit Breaker Type:** Standard - **Current Rating:** 40 A - **Mounting Type:** Screw Mount - **Number Of Poles:** 2 ## Images ![Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter - Image 1](https://m.media-amazon.com/images/I/81gcTiQ05gL.jpg) ![Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter - Image 2](https://m.media-amazon.com/images/I/71VEsdT7ajL.jpg) ![Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter - Image 3](https://m.media-amazon.com/images/I/61oBLWe3m3L.jpg) ![Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter - Image 4](https://m.media-amazon.com/images/I/713ze+kUo3L.jpg) ![Nilight 40A Inline Circuit Breaker 12-24V DC Manual Reset Fuse Holder | 3-15 AWG Resettable Overload Protection for Car Audio Sound Amplifier System RV Marine Boat Truck Solar Inverter - Image 5](https://m.media-amazon.com/images/I/81Y3WFrRT0L.jpg) ## Available Options This product comes in different **Color, Size** options. --- ## 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.hk/products/600021757-nilight-40a-inline-circuit-breaker-12-24v-dc-manual-reset](https://www.desertcart.hk/products/600021757-nilight-40a-inline-circuit-breaker-12-24v-dc-manual-reset) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-18*