When installing electrical equipment near water features such as pools, spas, and fountains, safety and code compliance are non-negotiable. The National Electrical Code (NEC) Article 680 imposes stringent requirements on any power supply used in or around water to protect users from electric shock and equipment failure. Foshan Shunde Xuhuang Electrical Appliance Co., Ltd. has engineered a line of industrial-grade DC 24V power supplies that not only meet these rigorous standards but also deliver exceptional reliability, corrosion resistance, and long-term performance. These units are built with a 316 stainless steel enclosure, rated NEMA 3R for outdoor use, and feature IP67-rated internal components to withstand moisture, dust, and temperature extremes. Whether you choose a line cord version or a direct-wire model, each power supply is backed by a comprehensive 5-year warranty, giving commercial installers and facility managers the confidence they need for mission-critical water feature applications. In this article, we provide a deep dive into the specifications, certifications, product lineup, and value proposition of Xuhuang's UL Listed DC 24V power supplies, helping you make an informed purchasing decision for your next pool, spa, or fountain project.

Xuhuang's DC 24V power supplies are purpose-built for the harsh environments typical of pool and spa installations. The outer enclosure is fabricated from 316 stainless steel, a material chosen for its exceptional resistance to corrosion from chlorine, saltwater, and other chemicals commonly found in aquatic settings. The NEMA 3R rating ensures the unit can be installed outdoors, protecting internal electronics against rain, sleet, and snow while allowing for proper ventilation. Inside, the power supply components are sealed to IP67 standards, meaning they are completely protected against dust ingress and can withstand temporary immersion in water up to one meter deep. This triple-layer protection — 316 stainless steel, NEMA 3R, and IP67 internals — makes these power supplies ideal for both new construction and retrofits where reliability is paramount. Additionally, each unit supports either a line cord connection or a direct-wire installation, providing flexibility for different electrical setups. With a wide input voltage range accepting 230VAC to 24VDC conversion, these power supplies deliver stable, ripple-free output that keeps LED lighting, pumps, and control systems running smoothly without flicker or instability. The industrial-grade design also includes thermal overload protection, short-circuit protection, and overvoltage clamping, ensuring safe operation even under fault conditions.

Meeting NEC Article 680 requires more than just robust construction — it demands independent third-party certification that verifies the product's safety and performance. Every DC 24V power supply from Xuhuang carries a full UL listing with an official file number that inspectors and authorities having jurisdiction (AHJs) can verify on-site. UL 508A is the relevant standard for industrial control panels, and these power supplies are specifically designed to simplify the approval process for panel builders who integrate them into larger control systems. When a UL Listed component is used in a UL 508A panel, it reduces the need for additional testing and documentation, saving time and money during the certification process. The UL file number is clearly marked on each unit's nameplate, alongside the electrical ratings and manufacturing date. This transparency allows electrical contractors, engineers, and inspectors to quickly confirm that the equipment complies with local and national codes. For municipalities that strictly enforce NEC Article 680, having a UL Listed power supply is often a requirement, and Xuhuang's certification provides the peace of mind that comes with a globally recognized safety mark. Furthermore, UL listing covers not only the initial product design but also ongoing factory inspections, ensuring consistent quality and safety across every production batch.

Xuhuang offers a range of power supply models to suit different load requirements, with the 24VDC series being the primary focus for pool and spa applications. The 240W model (MPN: 240-24SS) is priced at $279 and delivers 10 amps of clean DC 24V power, sufficient for most medium-sized water feature lighting systems and small pumps. For larger installations, the 320W model (MPN: 320-24SS) provides 13.33 amps at $350, making it ideal for high-output LED arrays, multiple pump controllers, or combination loads. A 480W model is coming soon, which will further expand the high-power options for commercial-scale fountains and water parks. All 24VDC models feature the same 316 stainless steel enclosure, NEMA 3R rating, and IP67 internal protection, so you can scale up without downgrading environmental resilience. For applications that require 12VDC, Xuhuang also offers 192W and 264W models, providing a complete low-voltage solution for both 12V and 24V systems. These units share the same rugged construction and UL listing, allowing mixed-voltage installations to maintain consistent quality and compliance. Special order wattages are available for customers with unique voltage or current requirements, supported by Xuhuang's flexible OEM/ODM capabilities. The company's ability to customize output voltages, connector types, and enclosure options makes it a preferred partner for panel builders and system integrators who need tailored power solutions.

Panel builders operating under UL 508A standards face significant overhead when evaluating and approving non-listed components. Each unlisted part requires additional investigation, testing, and documentation, which can delay project timelines and increase costs. By choosing Xuhuang's UL Listed DC 24V power supplies, panel builders can streamline their approval process because the component already meets UL 508A requirements for spacing, insulation, and performance. This simplifies the overall panel listing and reduces the risk of rejection during final inspection. Beyond certification, Xuhuang's power supplies offer measurable operational advantages. The high efficiency conversion from 230VAC to 24VDC minimizes heat generation inside the control cabinet, allowing for more compact panel designs and reducing the load on cooling systems. The IP67-rated internal electronics also mean that even if condensation or minor leaks occur inside the enclosure, the power supply will continue operating reliably. For integrators who export panels to regions with strict moisture and corrosion requirements, the 316 stainless steel construction eliminates the need for additional protective coatings or secondary enclosures. Xuhuang's 5-year warranty further reduces the total cost of ownership by protecting against premature failures. When you factor in the competitive pricing — $279 for the 240W model and $350 for the 320W model — the value becomes clear: you get industrial-grade reliability, full code compliance, and long-term support at a price point that improves project margins.

Every DC 24V power supply ships with a detailed PDF spec sheet that includes electrical characteristics, mechanical drawings, derating curves, and installation instructions. These documents are essential for engineers who need to verify compatibility with existing systems or submit submittals to consulting engineers. The 240W unit has a shipping weight of 6.5 lbs, while the 320W model weighs 8.5 lbs, making them easy to handle and ship via standard carriers. Xuhuang also offers a downloadable PDF of the full warranty terms, which cover defects in materials and workmanship for five years from the date of purchase. The warranty is transferable, adding resale value for equipment that may be redeployed to different sites. Technical support is available directly from the factory, with engineers who can assist with application questions, wiring diagrams, and troubleshooting. For customers who require custom voltage taps, special input voltage ranges, or unique enclosure configurations, Xuhuang's OEM/ODM services — detailed on theCustomized page — provide a proven path to a tailored solution. The company's commitment to quality is also reflected in its ISO-compliant manufacturing processes and the fact that it has been serving the HVAC and refrigeration industries since 2006, as highlighted on the About Us page. For the latest product updates and industry news, you can visit the News page, which covers company milestones and certification achievements.

A DC 24V power supply converts standard AC mains voltage (typically 110V–277V) into a stable 24-volt direct current output. In pools and spas, 24VDC is the preferred voltage for LED lighting, small pumps, and control systems because it is classified as low voltage under NEC Article 680, reducing shock risk and allowing simpler wiring methods compared to line-voltage systems.

Yes, every Xuhuang DC 24V power supply carries a full UL listing with an official file number that can be verified by inspectors. The UL mark covers both the component and the complete assembly, ensuring compliance with UL 508A and NEC Article 680 requirements for pool and spa equipment.

Absolutely. Xuhuang's power supplies are specifically designed to accept 230VAC input and output clean 24VDC, making them ideal for outdoor fountain lighting. The NEMA 3R enclosure and IP67-rated internals protect against rain, splashing water, and dust, so the unit can be mounted outdoors near the fountain without additional shelter.

The 240W model (MPN: 240-24SS) delivers 10 amps at 24VDC, while the 320W model (MPN: 320-24SS) delivers 13.33 amps. Both use the same 316 stainless steel enclosure and carry the same environmental ratings, so the choice depends on your total load. The 240W is suitable for medium lighting systems, and the 320W can handle larger pump and lighting combinations.

Yes, each unit is configurable for either line cord connection (with a factory-installed plug and cord) or direct-wire installation (with conduit knockouts and terminal blocks). This flexibility allows installers to choose the method that best matches local code preferences and site conditions.

The IP67 rating means the internal electronics are completely dust-tight and can withstand immersion in water up to one meter deep for 30 minutes. In a spa environment, where humidity is high and condensation can form inside enclosures, IP67 protection prevents moisture damage and ensures long-term reliability even if the enclosure seal is compromised.

Xuhuang provides a 5-year warranty covering defects in materials and workmanship. The warranty is transferable, which adds value if the equipment is resold or relocated. A downloadable PDF of the full warranty terms is available on the product page.

Yes, Xuhuang offers OEM/ODM customization services. You can request different output voltages, connector types, enclosure sizes, or input voltage ranges through the Customized page. The engineering team will work with you to develop a solution that meets your exact specifications.

The 320W model weighs approximately 8.5 lbs. Detailed mechanical drawings with exact dimensions are provided in the PDF spec sheet. The compact footprint allows it to fit inside standard UL 508A enclosures or be wall-mounted in a NEMA 3R location.

Foshan Shunde Xuhuang Electrical Appliance Co., Ltd. has been manufacturing electrical and HVAC products since 2006. The company operates ISO-compliant facilities, holds multiple international certifications, and serves customers worldwide. You can learn more about their history and capabilities on the About Us page and explore their full product range on the Home page.