--- product_id: 15619030 title: "SGP90300 300-AMP Circuit Breaker" brand: "stinger" price: "₩177019" currency: KRW in_stock: true reviews_count: 13 category: "Stinger" url: https://www.desertcart.kr/products/15619030-sgp90300-300-amp-circuit-breaker store_origin: KR region: South Korea --- # 300A high amperage power Water & dust resistant housing Direct 0/4 gauge wire connection SGP90300 300-AMP Circuit Breaker **Brand:** stinger **Price:** ₩177019 **Availability:** ✅ In Stock ## Summary > ⚡ Master your power with the breaker that means business. ## Quick Answers - **What is this?** SGP90300 300-AMP Circuit Breaker by stinger - **How much does it cost?** ₩177019 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/15619030-sgp90300-300-amp-circuit-breaker) ## Best For - stinger enthusiasts ## Why This Product - Trusted stinger brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fuse-Free Freedom:** Ditch bulky fuses—this breaker is your sleek, reliable alternative for clean power management. - • **Reset & Kill Switch:** Unique push-button reset doubles as an emergency kill switch for ultimate control. - • **Plug & Play Precision:** Accepts direct 0 or 4 gauge power wires with included adapters for seamless installation. - • **Powerhouse Protection:** Handles a robust 300 amps to safeguard your entire system effortlessly. - • **Built to Brave Elements:** High-tech water-resistant housing with protective rubber bolt caps ensures durability in any environment. ## Overview The STINGER SGP90300 is a 300-amp, Type III circuit breaker designed for panel or firewall mounting. It features direct connection for 0 or 4 gauge wires, a unique push-button reset that doubles as a kill switch, and a water- and dust-resistant housing with protective rubber bolt caps. Ideal for high-demand electrical systems, it offers a durable, fuse-free solution with easy installation and reliable long-term performance. ## Description Circuit Breaker is 300 amp and can act as a master disconnect for circuits. The high amperage Type III circuit breaker is splash and dust proof. Review: Must have for new or old bass heads - Works like a charm. Screw spend money on huge fuses, just get a 300amp breaker for you system! Review: Easy to use - This product made it very easy to get all the strands of wire into the proper hole. The connect seemed very sturdy as I could not pull out the wire with a very strong pull. I suspect this should work very well for a long time as it seems well made. ## Features - Accepts direct connection of 0 or 4 gauge power wire with included adapters - Use as an alternative to fuse holders and fuses - Amperage: 300 Amperes - These panel or fire wall mount circuit breakers feature a unique push button reset which can also be used as a kill switch - High-tech water resistant housing with protective rubber bolt caps ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00TPKZUV0 | | Best Sellers Rank | #496,753 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #189 in Thermal Circuit Breakers | | Brand | STINGER | | Brand Name | STINGER | | Circuit Breaker Type | Standard | | Current Rating | 300 Amps | | Customer Reviews | 4.2 out of 5 stars 242 Reviews | | Global Trade Identification Number | 00609098814041 | | Included Components | SGP90300 | | Item Dimensions D x W x H | 18"D x 8"W x 14"H | | Manufacturer | Stinger | | Model | SGP90300 | | Mounting Type | Wall Mount | | Number Of Poles | 3 | | Number of Poles | 3 | | Part Number | SGP90300 | | Product Dimensions | 18"D x 8"W x 14"H | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 609098814041 | | Unit Count | 1.0 Count | | Warranty Description | 1-Year Manufacturer | ## Images ![SGP90300 300-AMP Circuit Breaker - Image 1](https://m.media-amazon.com/images/I/51My8n7txOL.jpg) ## Available Options This product comes in different **Customer Package Type** options. ## Questions & Answers **Q: What is the max diameter wire size in in/mm of the wire sockets? This unit will not fit 4/0 0000 wire that is actually needed for a 300 amp rating.** A: 4/0 is rated for 440 amps 2/0 is rated for 325 amps…. Hope this helps ## Customer Reviews ### ⭐⭐⭐⭐⭐ Must have for new or old bass heads *by A***R on June 7, 2025* Works like a charm. Screw spend money on huge fuses, just get a 300amp breaker for you system! ### ⭐⭐⭐⭐⭐ Easy to use *by A***. on March 27, 2024* This product made it very easy to get all the strands of wire into the proper hole. The connect seemed very sturdy as I could not pull out the wire with a very strong pull. I suspect this should work very well for a long time as it seems well made. ### ⭐ Horrible *by C***5 on August 20, 2025* These are absolute garbage!!! I have tried these a few times in hopes I just got a couple of bad ones. They all trip or if you trip it to make adjustments and try to reset it, it will not reset. In theory they would be great but they need better quality parts. Maybe stainless where possible to prevent rust/corrosion and/or seal the box to protect the internals. It's funny how all the positive reviews are first. What a joke!! --- ## 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.kr/products/15619030-sgp90300-300-amp-circuit-breaker](https://www.desertcart.kr/products/15619030-sgp90300-300-amp-circuit-breaker) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-07-12*