--- product_id: 645663128 title: "4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box" brand: "powgrow" price: "RM3054" currency: MYR in_stock: true reviews_count: 5 category: "Pow Grow" url: https://www.desertcart.com.my/products/645663128-4-string-pv-combiner-box-with-15a-rated-current-fuse store_origin: MY region: Malaysia --- # 15A rated fuse x4 for overload protection Built-in surge protective device IP65 waterproof metal enclosure 4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box **Brand:** powgrow **Price:** RM3054 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your solar game with pro-grade protection and sleek efficiency! ## Quick Answers - **What is this?** 4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box by powgrow - **How much does it cost?** RM3054 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/645663128-4-string-pv-combiner-box-with-15a-rated-current-fuse) ## Best For - powgrow enthusiasts ## Why This Product - Trusted powgrow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful 15A Fuses:** Four individual 15A fuses safeguard each PV string from overload, maximizing system reliability. - • **Robust Metal Armor:** Durable IP65-rated metal box with lock ensures ultimate outdoor protection and longevity. - • **Lightning-Ready Defense:** Integrated surge protective device with clear status indicator keeps your system safe from lightning strikes. - • **Heavy-Duty Prewired Wiring:** Premium solar-grade wires pre-installed for hassle-free, secure connections and optimal current flow. - • **Simplified Solar Management:** Combines up to 4 PV strings, reducing cable clutter and streamlining maintenance for professional setups. ## Overview The PowGrow 4 String PV Combiner Box is a rugged, IP65 waterproof metal enclosure designed for on/off-grid solar systems. Featuring four 15A rated fuses, a 50A air circuit breaker, and a built-in surge protective device, it ensures reliable overload and lightning protection. Prewired with high-quality solar cables and a grounded metal mounting plate, it simplifies solar array connections while enhancing system safety and performance. ## Description Our PV Combiner Box is a PV product designed to reduce the connection line between PV modules and inverter, facilitate maintenance and improve reliability. Using PV Combiner Box, users can connect a certain number of PV modules with the same specifications in series to form a series of PV modules according to the DC voltage range of the inverter input, then connect several series to the PV Combiner Box. Review: Solid construction - The PowGrow PV Combiner Box is very well-made and durable. I always look for features such as ample inner spacing for components and connections. These are more expensive but also easier to maintain/or upgrade. They allow for better heat dissipation. Metal is just my personal choice, although some of the PEP types are quality units but just not as good as the steel especially when it comes to a truly solid surface mount. PowGrow has weather strip, tight closure with robust latch and hinges. Review: Well made and it works! - I have had the controller box setup out in the Florida weather (hot direct sun) for almost a year with no problems. It appears very well made with heavy wiring and solid connections. I only have three solar strings attached right now but its nice to know I can add more as I need them. I would very much recommend this box. ## Features - Professional PV combiner box is suitable for your Photovoltaic On/Off-Grid Solar Power Generation Systems. Which makes your solar panel system work reliably and safety. With multifunction: PV array input with first class combination, Quickly cut off circuit, anti-thunder protection, anti-reverse, overload, etc. - Metal box with a lock. Waterproof class: IP65. Durable metal box makes it much more suitable for outside use and installation. It has a longer lasting time than the PVC plastic solar combiner box. The internal mount plate is also made of metal. - High quality wires. All wires are pre-wired in the box. Our solar combiner box is used professional wires that are especially for solar system. Built-in with a ground wire connector, the ground wire installation is available. Please ensure the current and voltage of single PV array doesn’t exceed 10A/250VDC. Then you can connect solar panel to the combiner box. - Built in with 4pcs individual 15A rated fuse(10x38mm). Max current of single PV input array is 10A. Their function is over load protection. The Combiner Box protects PV solar panel and inverter. Besides it will reduce the length of cable connect from panel to inverter, optimize system instruction makes the system more useful and maintenance. All in all. It will make the PV power system increase output power. - 50A air circuit breaker. It can provide short circuit fault protection and controls the combiner box output. Here is a Surge Protective Device/Lighting Arrester provides lightning protection. The “Green” indicates Normal, once it changes into “Red”. Remember to replace the SPD with a new one. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09BT91PHN | | Item Weight | 4 kg 200 g | | Manufacturer | PowGrow | | Package Dimensions | 35.5 x 33.6 x 16.6 cm; 4.2 kg | ## Images ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box - Image 1](https://m.media-amazon.com/images/I/61dRMDFDw9L.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box - Image 2](https://m.media-amazon.com/images/I/71XHIpQE+4L.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box - Image 3](https://m.media-amazon.com/images/I/71JpeFRiLOL.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box - Image 4](https://m.media-amazon.com/images/I/71PWuilc-uL.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box - Image 5](https://m.media-amazon.com/images/I/71x5qVndkhL.jpg) ## Questions & Answers **Q: Is this UL rated?** A: No I always call the customer service. **Q: What size wire goes from the combiner strip (at top) to the breakers? #10 = 30 total amps.or #8=55amps. which one?** A: #10 30 AMP Max **Q: Have three strings. I need a 20 amp fuse for one of them, can I replace one of the 15 amp fuses with a 20 amp and keep the remaining fuses 15 amps?** A: For your case, please ensure the three strings' total voltage are close or the same to each other. **Q: My panels have 8.9Amp.Should that be protected by 10Amp fuse?** A: This does not matter. 10Amp and 15 Amp are both can be used. We offered 15Amp. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Solid construction *by J***D on 13 November 2024* The PowGrow PV Combiner Box is very well-made and durable. I always look for features such as ample inner spacing for components and connections. These are more expensive but also easier to maintain/or upgrade. They allow for better heat dissipation. Metal is just my personal choice, although some of the PEP types are quality units but just not as good as the steel especially when it comes to a truly solid surface mount. PowGrow has weather strip, tight closure with robust latch and hinges. ### ⭐⭐⭐⭐⭐ Well made and it works! *by S***E on 25 May 2025* I have had the controller box setup out in the Florida weather (hot direct sun) for almost a year with no problems. It appears very well made with heavy wiring and solid connections. I only have three solar strings attached right now but its nice to know I can add more as I need them. I would very much recommend this box. ### ⭐⭐⭐⭐⭐ Quality *by L***S on 22 April 2026* Very good I love the quality ## Frequently Bought Together - PowGrow PV Combiner Box, 4 String Metal Solar Combiner Box with 15A Rated Current Fuse, Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable - BougeRV Solar Crimper Tool Kit - Crimper, 6 Pairs Connectors, Spanner Wrench for Solar Panel Cable Assembly and Installation - BougeRV 44PCS Solar Connector with Spanners IP67 Waterproof Solar Panel Cable Connectors Male/Female 22Pairs(10AWG) --- ## 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.com.my/products/645663128-4-string-pv-combiner-box-with-15a-rated-current-fuse](https://www.desertcart.com.my/products/645663128-4-string-pv-combiner-box-with-15a-rated-current-fuse) --- *Product available on Desertcart Malaysia* *Store origin: MY* *Last updated: 2026-08-14*