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GW-NHP350SW-3.3

NHP series

INQUIRY READY

GW-NHP350SW-3.3

Greatwall / Industrial Power Supply / NHP series

GW-NHP350SW-3.3 matches Industrial Control, Embedded Systems, Telecom Equipment, and Test Platforms with 198W capacity and a stable 3.3Vdc rail, helping operators achieve an installation-ready choice for mission-critical equipment.

Power Supply Type
AC/DC enclosed switching power supply
Rated Output Voltage
3.3Vdc
Rated Output Current
60A
Rated Output Power
198W
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PRODUCT OVERVIEW

Built for reliable, continuous power delivery.

The GW-NHP350SW-3.3 is intended for systems that require a compact, high-current 3.3V power source. Its slim construction, fanless cooling, wide input range, and optional monitoring functions make it suitable for both standalone equipment and integrated industrial electronic platforms. For this 198W capacity, 3.3Vdc output, installation planning should account for ambient temperature, pressure drop, service access, and the electrical limits of the surrounding platform. System validation should cover standby behavior, load transitions, protection recovery, and monitoring compatibility under expected operating conditions.

Plan the GW-NHP350SW-3.3 output wiring around the actual current demand: keep conductors short, use low-resistance terminations, separate power paths from sensitive signal wiring, and preserve access for retightening and inspection. Arrange the enclosure so heat from neighboring components cannot collect around the supply or its connection points.

Qualify the GW-NHP350SW-3.3 at several load levels, measuring voltage at both the supply terminals and the equipment input rather than relying only on no-load readings. Record cable drop, connector temperature, and enclosure temperature as baseline values. Later maintenance checks can compare against this record to identify loose joints, rising contact resistance, or deteriorating heat dissipation before they interrupt service.

CORE ADVANTAGES

198W 3.3V 60A Slim AC/DC Power Supply for Industrial Control, Embedded Systems, Telecom Equipment, and Test Platforms

The GW-NHP350SW-3.3 delivers a regulated 3.3V output at up to 60A, providing 198W of rated output power for low-voltage, high-current electronic systems. It is well suited for digital control boards, embedded computing platforms, telecom line cards, and other equipment requiring a stable 3.3V power rail.

01

High-Current 3.3V DC Output

The GW-NHP350SW-3.3 delivers a regulated 3.3V output at up to 60A, providing 198W of rated output power for low-voltage, high-current electronic systems. It is well suited for digital control boards, embedded computing platforms, telecom line cards, and other equipment requiring a stable 3.3V power rail.

02

Ultra-Slim 26 mm Power Supply Profile

With compact dimensions of 220 × 62 × 26 mm, this power supply can be installed in narrow equipment compartments, slim industrial enclosures, and space-constrained electronic systems. Its elongated metal chassis supports efficient system integration without occupying excessive internal space.

03

Wide-Range AC and High-Voltage DC Input

The unit supports a universal 90–264Vac input range as well as 127–370Vdc input, allowing it to operate across different regional power environments and selected high-voltage DC distribution systems. Built-in active PFC improves input current quality and supports more efficient front-end power conversion.

04

Natural Convection Cooling

The GW-NHP350SW-3.3 is designed for free-air convection cooling and does not require an integrated cooling fan. This fanless approach helps reduce acoustic noise, mechanical wear, dust intake, and long-term maintenance requirements.

05

Semi-Potted Design for Harsh Environments

Its semi-potted internal construction improves resistance to vibration, dust, humidity, and environmental stress. The design is suitable for industrial control cabinets, telecom equipment, embedded installations, and other applications that require stable long-term operation.

06

Integrated Protection and Optional System Signals

The power supply incorporates overcurrent, overvoltage, overtemperature, and short-circuit protection functions. An optional DC OK signal and redundant operating function can also support system status monitoring and higher-availability power architectures.

MODEL SELECTION

Compare Greatwall industrial power options.

Review nearby Greatwall models and select the output voltage, power level, and integration profile that best match the target system.

Model Best-Fit Application
GW-NHP350SW-3.3 High-current 3.3V logic boards, embedded platforms, telecom line cards, and digital control systems
GW-NHP350SW-4.2 Low-voltage embedded electronics and specialized 4.2V equipment
GW-NHP350SW-5 Embedded controllers, communication boards, digital circuits, and 5V electronic loads
GW-NHP350SW-12 Security equipment, routers, industrial electronics, and 12V system loads
GW-NHP350SW-15 Test instruments, analog electronics, and specialized industrial equipment
GW-NHP350SW-24 PLC systems, industrial automation, sensors, relays, and control cabinets
GW-NHP350SW-36 Industrial actuators, communication equipment, and specialized DC-powered systems
GW-NHP350SW-48 Telecom equipment, network systems, PoE-related platforms, and 48V infrastructure
GW-NHP350SW-55 High-voltage DC equipment, telecom platforms, and specialized 55V system loads

DEPLOYMENT SCENARIOS

Where GW-NHP350SW-3.3 fits best.

The GW-NHP350SW-3.3 is intended for systems that require a compact, high-current 3.3V power source. Its slim construction, fanless cooling, wide input range, and optional monitoring functions make it suitable for both standalone equipment and integrated industrial electronic platforms.

Deployment Scenario Application Value
Industrial Control Systems Supplies stable 3.3V power to control boards, digital I/O platforms, communication modules, and internal logic circuits
Embedded Computing Equipment Supports high-current embedded processors, interface boards, FPGA platforms, and custom electronic assemblies
Telecom and Network Equipment Provides power for line cards, communication modules, switching circuits, and low-voltage telecom electronics
Test and Measurement Platforms Delivers a regulated 3.3V rail for burn-in systems, laboratory fixtures, automated testing equipment, and electronic validation platforms

POWER DESIGN

Reliability notes for continuous operation.

The GW-NHP350SW-3.3 combines a wide input architecture, active PFC, fanless thermal design, and a semi-potted internal structure. Its 3.3V high-current output is optimized for electronic systems that require low-voltage power delivery within a slim mechanical envelope.

  • Supports 90–264Vac universal input and 127–370Vdc input.
  • Delivers 3.3V at up to 60A, with a rated output power of 198W.
  • Built-in active PFC improves input current characteristics.
  • Provides efficiency of up to 88.5% under specified operating conditions.
  • Uses free-air convection cooling with no integrated fan.
  • Semi-potted construction improves environmental and vibration resistance.
  • Includes overcurrent, overvoltage, overtemperature, and short-circuit protection.
  • Supports operation at altitudes up to 5,000 meters, with optional DC OK and redundant functions available for system integration.

INSTALLATION

Installation and operating guidance.

Confirm electrical compatibility, thermal clearance, mechanical fit, and system load before integration.

Item Guidance
Mounting Orientation Install the power supply securely on a stable metal surface using the designated mounting points
Ventilation Clearance Maintain sufficient clearance around the perforated enclosure to support natural air circulation
Input Wiring Use appropriately rated input cables and confirm whether the installation uses AC or high-voltage DC input
Output Cable Sizing Use short, low-resistance conductors capable of safely carrying up to 60A
Terminal Tightening Secure all screw-terminal connections properly to prevent overheating and voltage drop
Grounding Connect protective earth correctly before energizing the power supply
Output Adjustment Adjust the output voltage only within the manufacturer-permitted range and verify the voltage before connecting the load
Temperature Management Apply suitable load derating and additional enclosure airflow when operating near the upper temperature limit
Protection Coordination Use appropriate upstream fuses, circuit breakers, or input protection devices according to the final equipment design
Optional Signals Verify the wiring logic and interface requirements before using the optional DC OK or redundant operating functions

FAQ

Frequently asked questions about GW-NHP350SW-3.3.

Key answers for specification matching, installation planning, and system integration.

What type of power supply is the GW-NHP350SW-3.3?

It is a slim enclosed AC/DC switching power supply with a regulated 3.3V output, active PFC, screw-terminal connections, and natural convection cooling.

What are the dimensions of the GW-NHP350SW-3.3?

The power supply measures 220 × 62 × 26 mm, making it suitable for narrow enclosures and compact electronic equipment.

What input voltage range does it support?

It supports 90–264Vac input and 127–370Vdc input, allowing deployment in universal AC systems and selected high-voltage DC environments.

What output power and current does the GW-NHP350SW-3.3 provide?

It provides a 3.3V output at up to 60A, resulting in a rated output power of 198W.

Does the power supply require a cooling fan?

No. It is cooled by free-air convection and does not include an integrated fan. Adequate ventilation space must therefore be maintained around the enclosure.

What protection functions are included?

The power supply includes overcurrent, overvoltage, overtemperature, and short-circuit protection to help protect both the power supply and the connected equipment.

Can the GW-NHP350SW-3.3 be used in high-altitude installations?

Yes. It is designed to support applications at altitudes up to 5,000 meters, subject to proper thermal design and any required load derating.

Does it support power-status monitoring or redundant operation?

An optional DC OK signal and redundant operating function are available for applications that require power-status feedback or higher system availability.

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