MEAN WELL NSP-500 Series 500W AC/DC Enclosed Power Supply NSP-500-12 / 24 / 48 / 60

Overview of MEAN WELL NSP-500 Series

The MEAN WELL NSP-500 Series is a 500W AC/DC enclosed switching power supply platform designed for high-power industrial applications. It integrates active PFC, high-efficiency conversion technology and a compact enclosed structure with fan cooling and remote ON/OFF control to ensure stable operation under demanding load conditions.

As part of MEAN WELL’s industrial-grade enclosed power supply family, the NSP-500 Series is widely used in industrial automation, CNC machinery, robotics systems, industrial control equipment and communication infrastructure. It is commonly specified as NSP-500-12 power supply, NSP-500-24 industrial PSU, NSP-500-48 AC/DC power supply and NSP-500-60 high-power DC supply in OEM system designs.

The series supports an ultra-wide 85–305Vac input range, ensuring stable performance under unstable or global grid conditions. With efficiency up to 94.5%, low standby power consumption and high power density design, the NSP-500 Series is optimized for high-load industrial environments.

Available output models include NSP-500-5, NSP-500-7.5, NSP-500-12, NSP-500-15, NSP-500-24, NSP-500-27, NSP-500-36, NSP-500-48 and NSP-500-60, covering a full range of 5V to 60V DC output options for different system architectures.

The NSP-500 Series is commonly selected for high-power industrial control systems, automation equipment, CNC drives, robotics power systems and mission-critical OEM applications requiring stable DC output, high efficiency and long-term operational reliability.

Features

• 500W AC/DC enclosed switching power supply with active PFC function
• Ultra-wide 85–305Vac input range for global industrial automation and high-power systems
• Compact 199 × 99 × 30 mm enclosure for high power density system integration
• Available in NSP-500-5, NSP-500-7.5, NSP-500-12, NSP-500-15, NSP-500-24, NSP-500-27, NSP-500-36, NSP-500-48 and NSP-500-60 models
• High efficiency up to 94.5% with low no-load power consumption
• 500W rated output with stable high-load performance for industrial applications
• Forced air cooling by built-in DC fan with intelligent fan control
• Built-in remote ON/OFF control, Remote Sense and DC OK signal for system-level power management
• Built-in constant current limiting circuit for charging and dynamic load applications
• Protections against short circuit, overload, over voltage and over temperature
• Low leakage current, 2 × MOPP isolation and suitable for BF medical applications under system-level compliance conditions
• OVC III compliance, operating altitude up to 5000 meters and conformal coating
• Suitable for industrial automation, CNC machinery, robotics systems, telecom equipment, network infrastructure, charging systems and industrial control applications
• 5-year manufacturer warranty

Need help selecting the right output voltage? Compare NSP-500-5, NSP-500-7.5, NSP-500-12, NSP-500-15, NSP-500-24, NSP-500-27, NSP-500-36, NSP-500-48 and NSP-500-60 below.

Model Selection Guide for NSP-500 Series

The MEAN WELL NSP-500 Series offers a full range of single-output models from 5V to 60V DC, allowing engineers and system integrators to select the most suitable 500W AC/DC enclosed power supply based on system voltage requirements, load characteristics and application architecture.

Each model shares the same 85–305Vac ultra-wide input range, active PFC design and high power density enclosed structure with forced air cooling, while providing different output voltages and current capabilities for high-power industrial and automation systems.

Low Voltage Control & Electronic Systems (5V–7.5V)

The NSP-500-5 and NSP-500-7.5 models are designed for low-voltage DC systems, embedded controllers, communication modules and electronic instrumentation. These models provide high-current output at 5V and 7.5V for systems requiring stable regulated power at lower voltage levels in high-power environments.

Industrial Automation & High Power DC Systems (12V–24V)

The NSP-500-12 and NSP-500-24 are widely used in industrial automation, CNC machinery, robotics systems, charging systems and OEM equipment. Search terms such as NSP-500-12 power supply and NSP-500-24 industrial PSU are commonly used by procurement engineers and system integrators.

These models support high peak load capability, making them suitable for motors, drives, relays, capacitive loads and dynamic industrial control systems with transient current demands.

Telecom, Networking & Power Distribution Systems (27V–48V)

The NSP-500-27, NSP-500-36 and NSP-500-48 models are suitable for telecom infrastructure, network equipment, PoE power systems and distributed power architectures. They provide stable DC output for systems requiring higher voltage levels, centralized power distribution and high-load stability.

Search terms such as NSP-500-48 AC/DC power supply and 500W enclosed PSU for industrial automation are commonly associated with these models.

High Voltage Industrial Systems (60V)

The NSP-500-60 model is designed for high-voltage industrial applications, including specialized automation equipment, industrial drives, robotics systems and power architectures requiring extended voltage headroom. It is selected when higher voltage DC stability is required within a compact 500W enclosed design.

Need help choosing the correct NSP-500 model? Match your system voltage, load characteristics, peak current demand and power architecture to select the most suitable 500W AC/DC enclosed power supply for your application.

Related MEAN WELL Power Supply Series

For system design comparison and power architecture planning, the following MEAN WELL power supply series are commonly used alongside the NSP-500 Series in industrial, high-power automation and system integration applications:

• 
  NSP-200 Series – compact 200W AC/DC enclosed power supply for lower power industrial control systems and embedded applications with reduced power demand compared to the NSP-500 Series.
• 
  NSP-320 Series – mid-power 320W AC/DC enclosed power supply designed for general industrial automation, telecom systems and standard OEM equipment.
• 
  LRS-350 Series – cost-effective enclosed switching power supply for general industrial and commercial applications requiring compact design and stable output performance.
• 
  NDR-240 Series – DIN rail mounted power supply for industrial control cabinets, automation systems and structured power distribution architectures.

Need help selecting the right MEAN WELL power supply?
Compare NSP-200, NSP-320 and NSP-500 based on power level, system architecture requirements, peak load capability and application complexity.

Peak Power, Remote ON/OFF, Remote Sense and DC OK Signal

The MEAN WELL NSP-500 Series provides built-in high peak power capability, remote ON/OFF control, Remote Sense and DC OK signal functions for advanced industrial system integration and dynamic load applications.

For NSP-500-12, NSP-500-15, NSP-500-24, NSP-500-27, NSP-500-36, NSP-500-48 and NSP-500-60 models, the series supports up to 200% peak power capability for 5 seconds, enabling stable operation under transient load conditions such as motor startup, capacitive loads, charging systems and inrush current scenarios in high-power applications.

The built-in remote ON/OFF control function allows external switching of the power supply, making the NSP-500 Series suitable for systems requiring power sequencing, standby control and centralized power architecture management. Remote Sense and DC OK signal functions further support system-level monitoring, voltage compensation and operational status feedback in industrial equipment.

Peak Power Capability

The NSP-500 Series supports short-term peak output for 12V to 60V models. For example, NSP-500-24 can deliver up to 1000W peak power for 5 seconds, while maintaining rated output power under continuous operation.

This feature is particularly useful for applications with high transient load demands such as industrial automation systems, CNC machinery, robotics systems, telecom infrastructure, charging equipment and other high-power DC systems requiring short-duration overload support.

Remote ON/OFF Control

The remote ON/OFF function is controlled via RC+ and RC- terminals on the CN1 connector. The power supply remains ON when RC+ to RC- is open or maintained at 0–0.8Vdc.

The output is turned OFF when RC+ to RC- is driven to 3.3–10Vdc by an external control signal, enabling integration with system logic control, automation sequencing and standby power management strategies.

Remote Sense and DC OK Signal

The NSP-500 Series provides Remote Sense and DC OK signal functions for system-level integration. Remote Sense compensates for voltage drop between the power supply and the load, while the DC OK signal enables real-time monitoring of output status for control, alarm and protection systems.

Control Connector Information

The NSP-500 Series uses dedicated control interfaces for remote ON/OFF, Remote Sense and DC OK signal functions. These features simplify integration into industrial equipment, automation systems, robotics platforms, communication infrastructure and distributed high-power architectures.

Need installation and wiring details for the NSP-500 Series? Continue below to review mechanical dimensions, terminal assignment, control interface details and safety compliance information.

Mechanical Dimensions and Installation

The MEAN WELL NSP-500 Series features a compact enclosed high-power design with overall dimensions of 199 × 99 × 30 mm. Its slim structure and built-in DC fan cooling with intelligent fan control make it suitable for high-power installations in industrial automation, CNC machinery, robotics systems, control equipment, telecom infrastructure and industrial power architecture applications.

Dimensions

The overall mechanical size of the NSP-500 Series is 199 × 99 × 30 mm. This compact high-power density form factor helps optimize installation space while delivering a 500W AC/DC power supply solution with active PFC, ultra-wide input range and stable high-efficiency output performance for demanding industrial applications.

Terminal Assignment

The NSP-500 Series includes AC input, DC output and multiple control interfaces. The input terminal provides AC/L or DC input +Vin, AC/N or DC input -Vin, and FG connections. The DC output terminal provides +Vo and -Vo connections. The control interface supports remote ON/OFF control, Remote Sense and DC OK signal functions for system-level integration in high-power environments.

Installation Notes

When integrating the NSP-500 Series into equipment or control cabinets, users should review mounting direction, wiring clearance, terminal assignment, airflow design and temperature derating according to the installation manual and datasheet. Because the NSP-500 Series uses forced air cooling by built-in DC fan, sufficient ventilation space must be ensured to maintain stable long-term operation under high load conditions.

Need application and compliance information for the NSP-500 Series? Continue below to explore recommended applications, certifications, safety standards and EMC information.

Applications

The MEAN WELL NSP-500 Series is suitable for a wide range of high-power industrial, commercial and system integration applications that require a compact 500W AC/DC enclosed power supply with active PFC, ultra-wide input range and high-efficiency DC output performance.

With its 85–305Vac input range, high power density design, forced air cooling with intelligent fan control, low leakage current, 2 × MOPP isolation and multi-standard safety approvals, the NSP-500 Series is designed for equipment where stable high-power operation, dynamic load handling and long-term reliability are required.

• Industrial automation machinery and high-power control systems
• CNC machinery and robotics systems
• Industrial equipment and heavy-duty mechanical systems
• Advanced electronic instruments and control platforms
• Telecom infrastructure and network power systems
• High-power DC distribution and system architecture applications
• Charging systems and dynamic load equipment
• Industrial automation and smart facility systems
• Medical-related systems (system-level compliance required)

Need certification and compliance details for your project? Continue below to review safety standards, EMC information, leakage current data and approval specifications for the NSP-500 Series.

Certifications and Safety

The MEAN WELL NSP-500 Series is designed for multi-domain safety compliance across industrial, ITE, household, medical-related and energy conversion applications. This makes it suitable for projects requiring a compact 500W AC/DC enclosed power supply with broad international certification coverage and high-reliability performance.

According to the official NSP-500 datasheet, the series includes the following safety approvals and related compliance standards:

• CB: IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC61010-1/-2-201, IEC60601-1 and IEC62477-1
• DEKRA: BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN61010-1/-2-201, BS EN/EN60601-1 and BS EN/EN62477-1
• UL: UL62368-1, ANSI/AAMI ES60601-1 and UL61010-1/-2-201
• CCC: GB4943.1
• BSMI: CNS15598-1
• EAC: TP TC 004 approved
• KC / BIS: KC62368-1 and BIS IS13252 certified (depending on model and regional availability)
• SEMI F47: voltage sag immunity compliance verified

The datasheet also lists EMC emission and immunity standards such as BS EN/EN55032, BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN60601-1-2, BS EN/EN55014-1, BS EN/EN55014-2, BS EN/EN61000-3-2 and BS EN/EN61000-3-3.

For medical-related applications, the NSP-500 Series provides low leakage current, 2 × MOPP isolation between primary and secondary, and suitability for BF medical applications under system-level compliance conditions. The datasheet specifies earth leakage current below 350μA and touch current below 100μA at 277Vac.

The series supports OVC III compliance for IEC/EN 61558-1/-2-16 applications at altitude up to 2000 meters, while other listed standards are specified with OVC II and altitude ratings up to 4000 or 5000 meters depending on the applicable safety standard.

Need more product details before sending an inquiry? Continue below to review common questions about the NSP-500 Series, available output models, datasheet information and application selection.