--- product_id: 567039872 title: "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" brand: "powgrow" price: "1740 zΕ‚" currency: PLN in_stock: true reviews_count: 5 category: "Pow Grow" url: https://www.desertcart.pl/products/567039872-pv-combiner-box-4-string-metal-solar-combiner-box-15a store_origin: PL region: Poland --- # 50A Air Circuit Breaker IP65 Waterproof Metal Lockable Box Surge Protective Device (SPD) 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 **Brand:** powgrow **Price:** 1740 zΕ‚ **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power up your solar game with pro-grade protection and seamless control! ## Quick Answers - **What is this?** 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 by powgrow - **How much does it cost?** 1740 zΕ‚ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/567039872-pv-combiner-box-4-string-metal-solar-combiner-box-15a) ## 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€’ **Lightning-Ready:** Built-in Surge Protective Device with clear status indicator safeguards your system from lightning strikes. - β€’ **Robust Metal Housing:** Durable IP65-rated metal enclosure with lock ensures weatherproof, secure outdoor installation. - β€’ **Optimize Solar Output:** Reduces cable length and system losses, boosting efficiency and reliability for on/off-grid solar setups. - β€’ **Advanced Safety Controls:** Integrated 50A air circuit breaker and 4x 15A fuses provide reliable overload and short-circuit protection. - β€’ **Plug & Play Pre-Wired Setup:** Professional-grade pre-wired cables and ground wire connector simplify installation and maintenance. ## Overview The PowGrow PV Combiner Box is a heavy-duty, IP65-rated metal enclosure designed for on/off-grid solar systems. Featuring a 50A air circuit breaker, four 15A fuses, and a surge protective device, it ensures superior overload, short-circuit, and lightning protection. Pre-wired with high-quality solar cables and a ground connector, it simplifies installation while optimizing system efficiency and durability for long-term outdoor use. ## 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: 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 built combiner box but I still have to install and see if it works ## 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 | | Customer Reviews | 4.5 4.5 out of 5 stars (118) | | Date First Available | 13 August 2023 | | Manufacturer | PowGrow | | Material type | Metal | | Package Dimensions | 35.5 x 33.6 x 16.6 cm; 4.2 kg | | Power source type | Solar-Powered | ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61dRMDFDw9L.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/71XHIpQE+4L.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71JpeFRiLOL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71PWuilc-uL.jpg) ![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 - 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 ### ⭐⭐⭐⭐⭐ Review *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. ### ⭐⭐⭐⭐⭐ Review *by M***N on 17 November 2025* Well built combiner box but I still have to install and see if it works ### ⭐⭐⭐⭐⭐ Review *by C***C on 16 April 2025* Very sturdy and much nicer than the plastic boxes out there. Box is large enough to bring in a 1" conduit, no problem. ## 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.pl/products/567039872-pv-combiner-box-4-string-metal-solar-combiner-box-15a](https://www.desertcart.pl/products/567039872-pv-combiner-box-4-string-metal-solar-combiner-box-15a) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*