NSP-500/750 Series – New Generation 500 W / 750 W High-Reliability AC/DC Power Supplies

Following the successful launch of the new-generation NSP-75 / 100 / 150 / 200 / 320 series, MEAN WELL continues to expand the lineup with the introduction of the NSP-500/750 series.
These enclosed AC/DC power supplies deliver 500 W and 750 W of output power, combining high reliability, compact size, and advanced performance.
Compared to the well-established RSP-500/750 series, which has been on the market for over a decade, the new NSP-500/750 series represents a significant technological upgrade, offering higher efficiency, reduced dimensions, extended operating temperature range, and enhanced peak power capability.

NSP-500/750 vs RSP-500/750 – Key Improvements

The NSP-500/750 series is a true next-generation solution. Key advantages over the previous RSP models include:

• Up to 33% smaller dimensions, enabling easier integration into compact control cabinets
• Higher efficiency (90–95%), reducing energy losses and heat generation
• 200% peak power capability, ideal for applications with high inrush or dynamic loads
• Wider operating temperature range: -40 to +85°C (full load up to +60°C)
• Extended 5-year warranty, underlining long-term reliability and quality

Key Features of the NSP-500/750 Series

• Ultra-wide 85–305 VAC input range
  Compatible with 277 VAC (North America) and more resistant to unstable AC power conditions.
• High efficiency and ultra-low no-load power consumption
  Efficiency up to 95% with no-load power consumption below 0.75–1 W (model dependent).
• 200% peak power output capability
  Ensures stable operation during short-term overloads.
• Wide operating temperature range
  From -40 to +85°C, with full-load operation up to +60°C.
• Built-in low-noise cooling fan
  Noise level below 45 dB, suitable for noise-sensitive environments.
• Comprehensive protection functions
  Short-circuit, overload, over-voltage, and over-temperature protection.
• OVC III compliance
  Increased immunity to overvoltage transients in industrial installations.
• Operation at altitudes up to 5000 meters
• Ultra-low leakage current <350 µA
  Meets 2xMOPP requirements and supports medical BF-grade applications.
• Extensive international safety certifications
  CB, DEKRA, UL, RCM, BSMI, CCC, EAC, BIS, KC, CE, UKCA
  Compliance with standards including 62368-1, 61010-1, 61558-1, 62477-1, 60601-1, 60335-1, and SEMI 47.
• Conformal-coated PCB
  Enhanced resistance to moisture, dust, and harsh environmental conditions.
• 5-year manufacturer’s warranty

Applications

The MEAN WELL NSP-500/750 series delivers a powerful combination of higher power density, improved efficiency, wide temperature tolerance, and comprehensive safety compliance. It is an excellent choice for manufacturers and system integrators seeking a future-proof, high-performance AC/DC power supply for demanding industrial and medical applications.

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