--- product_id: 408494269 title: "4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable" brand: "powgrow" price: "β‚Ή 23074" currency: INR in_stock: true reviews_count: 8 url: https://www.desertcart.in/products/408494269-4-string-pv-combiner-box-with-15a-rated-current-fuse store_origin: IN region: India --- # 50A Air Circuit Breaker IP65 Waterproof Metal Lockable Box 4x 15A Fuses + Surge Protection 4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable **Brand:** powgrow **Price:** β‚Ή 23074 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power Up Your Solar Game with Ultimate Safety & Style! ## Quick Answers - **What is this?** 4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable by powgrow - **How much does it cost?** β‚Ή 23074 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/408494269-4-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 - β€’ **Integrated 50A Air Circuit Breaker:** Advanced short-circuit protection that safeguards your entire solar system, minimizing downtime and maintenance. - β€’ **Robust Metal Housing with IP65 Rating:** Durable, weatherproof design built for outdoor solar setups, ensuring long-term reliability and security with a lockable metal box. - β€’ **Optimized System Efficiency & Maintenance:** Combines multiple PV strings to reduce cable length and improve power output, making your solar array smarter and easier to manage. - β€’ **Pre-Wired with Premium Solar-Grade Cables:** Simplifies installation and reduces wiring errors, accelerating your solar project deployment. - β€’ **Multi-Layered Safety with 4x 15A Fuses & SPD:** Overload, reverse polarity, and lightning surge protection keep your investment safe and operational. ## Overview The 4 String PV Combiner Box by PowGrow is a professional-grade, IP65-rated metal enclosure designed for on/off-grid solar systems. It features four individual 15A fuses, a 50A air circuit breaker, and a surge protective device to ensure comprehensive protection against overloads, short circuits, and lightning strikes. Pre-wired with high-quality solar cables and equipped with a lockable metal box, it streamlines installation, enhances system reliability, and boosts overall solar power output. ## Description Our PV Combiner Box is a device 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. 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 15A Rated Current Fuse, Surge Protective Device and 50A Air Circuit Breaker and a ground wire connector, the ground wire installation is available. 4pcs individual 15A rated fuse. Max current of single PV input array is 10A. Their function is over load protection. It can provide short circuit fault protection and controls the combiner box output. Professional low voltage Air Circuit Breaker controls output, with anti-circuit protection function which makes the system more reliable and safety. It provides lightning protection. Both positive and negative poles with anti-thunder protection function.The β€œGreen” indicates Normal, once it changes into β€œRed”. Remember to replace the SPD with a new one. Which protects your devices. Our PV combiner box is built-in with an anti-rust lock and keys. It is very easy to use. Protects the box from opening by others. ## 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 β€œGreen” indicates Normal, once it changes into β€œRed”. Remember to replace the SPD with a new one. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09BT91PHN | | Best Sellers Rank | #111,165 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #732 in Solar & Wind Power Parts & Accessories | | Customer Reviews | 4.6 4.6 out of 5 stars (230) 4.6 out of 5 stars | | Item Weight | 9.24 pounds | | Manufacturer | PowGrow | | Package Dimensions | 13.98 x 13.23 x 6.54 inches | ## Images ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable - Image 1](https://m.media-amazon.com/images/I/61dRMDFDw9L.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable - Image 2](https://m.media-amazon.com/images/I/71XHIpQE+4L.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable - Image 3](https://m.media-amazon.com/images/I/71JpeFRiLOL.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable - Image 4](https://m.media-amazon.com/images/I/71PWuilc-uL.jpg) ![4 String PV Combiner Box with 15A Rated Current Fuse, Metal Box | Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable - Image 5](https://m.media-amazon.com/images/I/71x5qVndkhL.jpg) ## Available Options This product comes in different **Size** options. ## 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 on Reviewed in the United States November 13, 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 on Reviewed in the United States May 25, 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 on Reviewed in the United States April 22, 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.in/products/408494269-4-string-pv-combiner-box-with-15a-rated-current-fuse](https://www.desertcart.in/products/408494269-4-string-pv-combiner-box-with-15a-rated-current-fuse) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-08-15*