MEAN WELL NSP-75 Series 75W AC/DC Enclosed Power Supply

Overview of MEAN WELL NSP-75 Series

The MEAN WELL NSP-75 Series is a 75W AC/DC enclosed power supply with PFC function, designed for high-reliability applications that require compact size, stable DC output, low standby power consumption and broad safety compliance.

As part of the Mean Well product range, the NSP-75 Series belongs to the AC/DC enclosed switching power supply category. It supports an ultra-wide 85–305Vac input range, offers up to 92% efficiency, and uses a compact 99 × 97 × 30 mm fanless enclosure for space-limited and noise-sensitive installations.

The series includes NSP-75-5, NSP-75-12, NSP-75-15, NSP-75-24, NSP-75-27, NSP-75-36, NSP-75-48 and NSP-75-60 models, covering 5V to 60V DC output options. With 200% peak power capability for 12V to 60V models, remote ON/OFF control, low leakage current and multi-field safety approvals, the NSP-75 Series is suitable for industrial automation, security systems, telecom devices, network equipment, PoE-related equipment, home automation and medical devices.

Features of NSP-75 Series

• 75W AC/DC enclosed power supply with PFC function
• Ultra-wide 85–305Vac input range for global power systems
• Compact 99 × 97 × 30 mm enclosure for space-limited installations
• Available in NSP-75-5, NSP-75-12, NSP-75-15, NSP-75-24, NSP-75-27, NSP-75-36, NSP-75-48 and NSP-75-60 models
• High efficiency up to 92% with low no-load power consumption
• 200% peak power capability for 12V to 60V models
• Fanless design for noise-sensitive industrial, medical and automation applications
• Built-in remote ON/OFF control for system-level power management
• Protections against short circuit, overload, over voltage and over temperature
• Low leakage current, 2 × MOPP isolation and suitable design for BF medical applications
• OVC III compliance, operating altitude up to 5000 meters and conformal coating
• Suitable for industrial automation, security systems, telecom devices, network equipment, PoE-related equipment, home automation and medical devices
• 5-year manufacturer warranty

Need help choosing the right output voltage? Compare the main specifications of NSP-75-5, NSP-75-12, NSP-75-15, NSP-75-24, NSP-75-27, NSP-75-36, NSP-75-48 and NSP-75-60 below.

NSP-75 Series Model Selection Guide

The MEAN WELL NSP-75 Series is a 75W AC/DC enclosed power supply family covering multiple output voltage options from 5V to 60V DC, including NSP-75-5, NSP-75-12, NSP-75-15, NSP-75-24, NSP-75-27, NSP-75-36, NSP-75-48 and NSP-75-60 models.

For low-voltage electronic systems, NSP-75-5 is commonly used in control boards, embedded devices and instrumentation applications where stable 5V DC power is required.

For general industrial automation applications, models such as NSP-75-12, NSP-75-15 and NSP-75-24 are widely adopted in control systems, sensors, relays and standard industrial equipment. Among them, NSP-75-24 is one of the most commonly used 24V industrial power supply options.

For higher voltage applications, NSP-75-36, NSP-75-48 and NSP-75-60 are suitable for telecom devices, network equipment and PoE-related systems requiring stable higher DC voltage output.

The NSP-75 Series supports 200% peak power capability for 12V to 60V models, making NSP-75-12, NSP-75-24 and NSP-75-48 particularly suitable for systems with temporary inrush or startup load conditions.

If you are not sure which NSP-75 model to choose, you can compare NSP-75-24 vs NSP-75-48 based on system voltage architecture, load current and application requirements.

Related Mean Well Power Supply Series

If you are evaluating the MEAN WELL NSP-75 Series, the following enclosed power supply series may also be relevant for comparison by output power, installation space and system load requirements:

• NSP-100 Series – 100W AC/DC enclosed power supply series for applications that need higher output power than NSP-75 while keeping the same high-reliability multi-industry design direction.
• NSP-150 Series – 150W AC/DC enclosed power supply option for industrial automation, control systems, security equipment, telecom devices and medical-related applications.
• NSP-200 Series – 200W AC/DC enclosed power supply series suitable for systems requiring more output capacity, wide input range, PFC function and reliable peak load handling.
• LRS-100 Series – Cost-effective enclosed switching power supply series for standard industrial applications where multi-field safety approvals or medical-related requirements are not the main priority.

Peak Power and Remote ON/OFF Control

The MEAN WELL NSP-75 Series includes practical control and peak load functions for system integration. For NSP-75-12, NSP-75-15, NSP-75-24, NSP-75-27, NSP-75-36, NSP-75-48 and NSP-75-60 models, the series supports 200% peak power capability for up to 5 seconds.

The built-in remote ON/OFF control function allows the power supply to be switched externally, making the NSP-75 Series suitable for equipment that requires power sequencing, standby control or external system logic.

Peak Power Capability

The NSP-75 Series supports short-term peak output for 12V to 60V models. For example, NSP-75-24 can provide up to 150W peak power for 5 seconds, while the average output power must remain within the rated power limit.

This feature is useful for applications with temporary high inrush or startup load demand, such as industrial automation equipment, security systems, telecom devices, network equipment and other DC-powered systems.

Remote ON/OFF Control

The remote control function allows the PSU to be turned ON or OFF through the RC+ and RC- control pins on CN1. According to the function manual, the power supply remains ON when RC+ to RC- is open or kept at 0–0.8Vdc.

The output turns OFF when RC+ to RC- is kept at 3.3–10Vdc by external voltage. This makes the NSP-75 Series practical for systems that require remote power switching, external control logic or standby operation.

Control Connector Information

The NSP-75 Series uses a remote ON/OFF connector interface with RC+ and RC- pin assignment. This control interface helps simplify integration into industrial equipment, automation systems, network devices and other enclosed power supply applications.

Need installation and wiring details for the NSP-75 Series? Continue below to review mechanical dimensions, terminal assignment, remote ON/OFF pin information and safety approvals.

Mechanical Dimensions and Installation

The MEAN WELL NSP-75 Series features a compact enclosed design with overall dimensions of 99 × 97 × 30 mm. Its fanless structure and small footprint make it suitable for space-limited installations in industrial automation, control systems, security equipment, network devices, telecom devices and medical-related applications.

Dimensions

The overall mechanical size of the NSP-75 Series is 99 × 97 × 30 mm. This compact enclosed form factor helps save installation space while providing a 75W AC/DC power supply solution with PFC, wide input range and reliable output performance.

Terminal Assignment

The NSP-75 Series includes AC input, DC output and remote ON/OFF control connections. 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 remote ON/OFF control interface uses CN1 with RC+ and RC- pin assignment.

Installation Notes

When integrating the NSP-75 Series into equipment or control cabinets, users should review the mounting direction, wiring clearance, terminal assignment and ventilation space according to the installation manual and datasheet. Although the NSP-75 Series uses a fanless design, proper spacing and ambient temperature derating should still be considered for stable long-term operation.

Need application and compliance information for the NSP-75 Series? Continue below to explore recommended applications, certifications, safety standards and EMC information.

Applications

The MEAN WELL NSP-75 Series is suitable for a wide range of industrial, commercial and medical-related applications that require a compact 75W AC/DC enclosed power supply with PFC, wide input range and reliable DC output.

With its fanless design, 85–305Vac input range, low leakage current, 2 × MOPP isolation and multi-field safety approvals, the NSP-75 Series can be used in equipment where stable operation, compact installation and long-term reliability are important.

• Industrial automation machinery and control systems
• Security systems and access control equipment
• Mechanical and electrical equipment
• Electronic instruments, equipment and apparatus
• Network equipment and telecom devices
• Power sourcing equipment for PoE-related systems
• Home automation equipment
• Medical devices and BF-rated medical applications

Need certification and compliance details for your project? Continue below to review the safety standards, EMC information, leakage current data and related approval information for the NSP-75 Series.

Certifications and Safety

The MEAN WELL NSP-75 Series is designed for multi-field safety compliance across industrial, ITE, household, medical-related and energy converter applications. This makes it suitable for projects that require a compact 75W AC/DC enclosed power supply with broad international certification coverage.

According to the official NSP-75 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, available by request depending on model and stock status
• SEMI F47: voltage sag immunity characteristics 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-75 Series provides low leakage current, 2 × MOPP isolation between primary and secondary, and suitability for BF medical applications under the specified conditions. The datasheet specifies earth leakage current below 350μA and touch current below 100μA at 277Vac.

The series also 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 standard.

Need more product details before sending an inquiry? Continue below to review common questions about the NSP-75 Series, available output models, datasheet information and application selection.