Over 15 years experience of providing support of MEAN WELL Power Supplies
NSP-320-24
The MEAN WELL NSP-320 series is a 320W high-reliability AC/DC enclosed power supply designed for multi-industry applications including industrial automation, mechanical equipment, medical devices, security systems, telecommunications, and PoE power sourcing. With a universal 85–305VAC input and built-in active PFC, it delivers up to 93.5% efficiency and extremely low no-load power consumption for enhanced energy savings. The compact 179×99×30 mm design incorporates forced-air cooling with a DC fan, enabling stable performance across a wide operating temperature range from –40°C to +85°C. Featuring 200% peak power capability, constant current limiting, remote ON/OFF control, remote sense, DC OK signal, and fan ON/OFF temperature control, the NSP-320 series ensures dependable performance in demanding environments. It meets a broad range of global safety standards, including IEC/EN/UL 62368-1, 60601-1 (2×MOPP), 60335-1, 61010-1, and 62477-1, making it suitable for BF-rated medical applications and high-altitude installations up to 5000 meters.
Key Features
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BrandMean Well
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Input Voltage85V~305V
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Standards MetBSMI,CB,CCC,CE,EAC,RCM,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-40°C~85°C
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Length7.05 in
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Width3.9 in
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Height1.18 in
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Weight1.48 lb
::specification::
Frequently Asked Questions
What applications is the NSP-320-24 best suited for?
The Mean Well NSP-320-24 is designed for multi-industry equipment that needs a regulated 24V DC output at up to 13.4A. Typical fit includes industrial automation, mechanical equipment, medical devices, security systems, telecommunications equipment, PoE power sourcing, and charging systems. Its high-reliability design and broad certification coverage make it suitable for demanding commercial and industrial environments.
What are the key electrical ratings of the NSP-320-24?
This model provides a nominal 24V DC output with a rated current of 13.4A and a power rating of 321.6W. It accepts a universal 85-305VAC input or 120-431VDC input. The unit also includes active power factor correction and reaches efficiency up to 93.5%.
Is the NSP-320-24 suitable for high-temperature or harsh operating environments?
Yes. The NSP-320-24 is specified for operation from -40°C to +85°C, with derating required above +60°C. It uses forced-air cooling with a built-in DC fan and has a conformal coated PCB to improve durability in demanding environments.
Can the NSP-320-24 be used in medical or safety-sensitive equipment?
This model is certified to IEC/EN/UL 60601-1 and is described as compliant with 2xMOPP for medical BF applications. It also features very low leakage current below 350uA, which is relevant for medical-oriented designs. In addition, it carries approvals including 62368-1, 60335-1, 61010-1, and 62477-1 for broader professional equipment use.
What monitoring and control features does the NSP-320-24 include?
The NSP-320-24 includes remote ON/OFF control, remote sense with up to 0.3V compensation, and a DC OK signal for status monitoring. It also supports fan ON/OFF temperature control and constant current limiting. These features make it easier to integrate into systems that need supervision and stable output performance.
How does the NSP-320-24 compare with standard 24V enclosed power supplies?
Compared with basic enclosed 24V supplies, the NSP-320-24 is positioned as a higher-reliability model with broader safety certifications, active PFC, and up to 93.5% efficiency. It also offers advanced functions such as remote ON/OFF, remote sense, DC OK signaling, and 200% peak power capability within the NSP-320 series. That makes it better suited for more demanding industrial, medical, and telecom applications than a simple general-purpose PSU.
Does the NSP-320-24 support high-altitude installations?
Yes. The product description states OVC III compliance up to 2000 meters and OVC II compliance up to 5000 meters. That makes it a viable option for installations where altitude is part of the environmental requirement.
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