Introduction
Following the successful launch of the new-generation NSP-75/100/150/200/320 series, MEAN WELL continues to expand the NSP family with the introduction of the NSP-500 and NSP-750 series.
Designed as the next-generation replacement for the long-established RSP-500/750 series, the NSP-500/750 delivers a comprehensive upgrade in performance, size, efficiency, and reliability. Despite offering higher power capability, the new series features a 33% reduction in size, making it ideal for space-constrained installations.
Key improvements include higher efficiency, 200% peak power capability, an ultra-wide operating temperature range (-40 to +85°C), and an extended 5-year warranty. With certifications covering five major safety categories, the NSP-500/750 series is well suited for demanding applications such as industrial automation, communications equipment, security systems, medical devices, smart home solutions, and new energy systems.
Comparison table of the NSP-500/750 and the previously released RSP-500/750
Key Features
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Ultra-wide AC input range (85–305Vac)
Compatible with North American 277Vac systems and more resistant to unstable AC power conditions. -
High efficiency up to 90–95%
Combined with ultra-low no-load power consumption (<0.75–1W, model dependent) for improved energy efficiency. -
200% peak power capability
Ideal for applications with high inrush or transient load demands. -
Wide operating temperature range: -40 to +85°C
Supports full-load operation up to +60°C, ensuring stable performance in harsh environments. -
Built-in low-noise cooling fan
Acoustic noise level below 45 dB, balancing cooling efficiency and quiet operation. -
Comprehensive protection functions
Includes short-circuit, overload, over-voltage, and over-temperature protection. -
OVC III compliant
Suitable for industrial electrical environments. -
High-altitude operation
Reliable performance at altitudes up to 5000 meters. -
Ultra-low leakage current (<350 µA)
Meets 2×MOPP requirements and supports medical BF-grade applications. -
Extensive global safety certifications
Certified to CB, DEKRA, UL, RCM, BSMI, CCC, EAC, BIS, KC, CE, UKCA, and standards including IEC 62368-1, 61010-1, 61558-1, 62477-1, 60601-1, 60335-1, plus SEMI 47 for semiconductor equipment. -
Conformal-coated PCB
Enhances durability and reliability in humid, dusty, or harsh industrial environments. -
5-year warranty Ensures
Ensures long-term reliability and peace of mind.
Note 1:
The first production batch will not show BSMI/CCC on the label due to later certification timing. These markings will appear in mass production units. During the transition period, MEAN WELL inventory may include different label versions. If BSMI/CCC labeling is required, please contact your MEAN WELL sales representative.
Application
Product Information
Conclusion
With its compact size, robust performance, and comprehensive international certifications, the NSP-500/750 series sets a new benchmark for high-power enclosed AC-DC power supplies. It is an ideal choice for engineers and system designers seeking high reliability, flexibility, and future-ready performance in demanding applications.
If you are interested, please feel free to contact us at contact@wellforcess.co.nz
