63 amp Circuit breaker/boxSolar Disconnect Switch - Solid Protection for Your Solar InvestmentThis Solar Disconnect Switch offers a robust and well-protected solution for safely isolating and protecting your solar power system. Featuring a 63 Amp 500V DC miniature circuit breaker housed in a durable, IP65 waterproof enclosure, it's designed to withstand the rigors of outdoor use.Great features that I like:* Reliable Overcurrent Protection: The 63 Amp circuit breaker effectively safeguards your solar panels and inverter from over-voltage and overload conditions, preventing damage from surges and short circuits.* IP65 Waterproof Rating: The IP65 rated enclosure provides excellent protection against water and dust, making it suitable for both indoor and outdoor installations.* Versatile Application: The disconnect switch is compatible with a wide range of solar systems, including on-grid, off-grid, RV, boat and wind energy applications.* Durable Construction: The use of PC+ABS material ensures UV resistance and high flame retardancy, contributing to the long-term reliability and safety of the product.* Easy Installation: The inclusion of M16 waterproof connectors that accommodate a range of cable sizes (3-9mm diameter, 12-6AWG cables) simplifies the wiring process and ensures a secure, waterproof connection.* AC and DC Voltage capabilities: No polarity required. DC 12~500V for + and - poles or - and +, AC 90~500V for L and N polesBut, would Certifications help?* Component Quality: While the material is described, independent testing or certification (UL, CE, etc.) if available, would further inspire confidence in the circuit breaker's performance and safety.This Solar Disconnect Switch appears to be a well-designed and durable solution for protecting solar power systems. Its robust construction, waterproof enclosure, and versatile application make it a worthwhile investment for anyone looking to safeguard their solar panels and inverter from electrical faults.The inclusion of a Circuit Breaker is a must in any installation. This product hits all the requirements for my application. 5 stars for a necessary safety device.

I'm reviewing the 60A/500Vdc version of this breaker. Despite the comical diction and grammar in the instruction booklet, the DC breaker assembly is a well-made, easy to install necessity in DC-coupled solar installations. I got this one to serve as a quick disconnect and protection breaker in the backhaul from a 20 panel ground-mounted string to the inverter, the theoretical peak current from which is 44A at 320 Vdc, so I can work on this array without taking my other ones out of generation. It's just cheap insurance considering the price of my inverter and batteries.The housing is substantial and seems qualified for outdoor installation. This model is an improvement over the last generation that had single strain relief grommets and it has a better weather seal in the front access cover. The strain reliefs are well-sealed with holes for both conductors that worked well with my 10 AWG wire.I tested this in a simple DC circuit in which I am able to generate currents up to 100 A and 500V with good results. The breaker reliably opened at an average of 58.9A and offered good protection against shorts by opening within 70ms. The tests produced no apparent damage, and I've installed it now in my system. I've only had it a few days so I can't speak to its durability or longevity yet, but my initial impression is that it's a good product and reasonably priced. I will come back in 6 months or so and update this with more real-world observations.

Review of the Solar Disconnect Switch 40 Amp 500V DC Miniature Circuit Breaker with IP65 Waterproof BoxAs an avid advocate for renewable energy and a dedicated DIY solar enthusiast, I recently had the opportunity to install the Solar Disconnect Switch 40 Amp 500V DC Miniature Circuit Breaker, and I must say, it has greatly impressed me. This device stands out for its incredible safety features, robust construction, and versatile applications.Ease of Installation and OperationOne of the first things that struck me about this circuit breaker was its straightforward design. With a clear labeling of input and output ports, even those new to solar installations can easily integrate it into their systems. The no polarity feature adds a layer of convenience; it allows for flexibility during installation, making it easier to connect either way.Sturdy ConstructionThe shell, made from PC+ABS material, exudes durability and resilience. The UV resistance and high flame-retardant properties provide reassurance when using the switch outdoors, where it's subjected to varying weather conditions. During my installation, I appreciated the solid feel of the unit—it doesn’t feel flimsy or cheap, which is crucial for a product serving as a safety disconnect in high-voltage applications.Safety FeaturesThe switch is designed to protect against over-voltage and overload, which is vital for the longevity of any solar power system. With my previous systems, I faced issues with overcurrent leading to component failures. Having experienced these problems firsthand, I feel much more confident knowing this disconnect switch is actively working to mitigate such risks. It effectively protects against potential damage from overloads, ensuring that my solar system remains intact and operational for longer periods.IP65 Waterproof RatingThe IP65 waterproof rating is a standout feature for outdoor applications, especially for those like me who live in areas prone to storms and heavy rain. I have installed this switch in my RV, and it has withstood the elements without any signs of moisture damage or deterioration. The included M16 waterproof connector is also a fantastic addition, ensuring a secure seal for 3~9mm diameter cables—this makes it versatile enough for various applications, from solar panels to RVs and boats.Wide Application RangeWhether you're dealing with on-grid or off-grid solar systems, this switch makes an excellent choice. I also appreciate that it can be utilized in wind energy setups, which broadens its utility. Personally, its versatility has allowed me to offer solutions for friends looking to set up their own systems, enhancing my role as a solar solutions provider.ConclusionOverall, the Solar Disconnect Switch 40 Amp 500V DC Miniature Circuit Breaker represents a prudent investment for anyone involved in solar energy or related applications. It merges safety, reliability, and adaptability in one robust package. I would highly recommend this product to both novices and experienced users—the peace of mind it provides in safeguarding your solar system is invaluable.