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GW-NHP350SW-55

NHP series

INQUIRY READY

GW-NHP350SW-55

Greatwall / Industrial Power Supply / NHP series

GW-NHP350SW-55 is positioned for Ull Range Input, Telecom Systems, Industrial Automation, Network Equipment, and Industrial Control Systems. The combination of 350W capacity and a stable 55Vdc rail gives operators an installation-ready choice for mission-critical equipment.

Power Supply Type
AC/DC enclosed switching power supply
Rated Output Voltage
55Vdc
Rated Output Current
6.3A
Rated Output Power
350W
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PRODUCT OVERVIEW

Built for reliable, continuous power delivery.

The GW-NHP350SW-55 is designed for systems requiring a stable 55V rail within a compact, fanless power architecture. Its wide input range, high efficiency, semi-potted construction, and optional monitoring functions make it suitable for advanced networking and communication equipment. For this 350W capacity, 55Vdc output, for long-term service, document fan inspection, connector seating, event-log review, and replacement procedures as part of the maintenance plan. Commissioning should verify grounding, input protection, output stability, and the response of any redundant or hot-swap control logic. Qualification should include airflow direction, thermal margin, cable routing, and access for routine module replacement.

Plan the GW-NHP350SW-55 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-55 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

350W 55V 6.3A Slim AC/DC Power Supply for PoE Infrastructure, Telecom Radio Systems, Edge Communications, and Industrial DC Distribution

The GW-NHP350SW-55 provides a regulated 55V output at up to 6.3A, delivering 350W of rated output power. It is designed for telecom electronics, high-power PoE architectures, remote communication equipment, edge-network platforms, and specialized industrial systems requiring a stable high-voltage DC rail.

01

Regulated 55V DC Output

The GW-NHP350SW-55 provides a regulated 55V output at up to 6.3A, delivering 350W of rated output power. It is designed for telecom electronics, high-power PoE architectures, remote communication equipment, edge-network platforms, and specialized industrial systems requiring a stable high-voltage DC rail.

02

Ultra-Slim 26 mm Enclosed Design

With dimensions of 220 × 62 × 26 mm, the power supply can be integrated into narrow communication chassis, compact network enclosures, slim control cabinets, and other space-constrained equipment. Its metal enclosure provides mechanical protection while supporting effective passive heat dissipation.

03

Universal AC and High-Voltage DC Input

The unit supports 90–264Vac input and 127–370Vdc input, enabling operation across different regional AC grids and selected high-voltage DC distribution environments. Built-in active PFC improves input current characteristics and supports stable front-end power conversion.

04

High Efficiency up to 94.5%

Conversion efficiency of up to 94.5% helps reduce internal heat generation and system energy losses. This supports more efficient continuous operation in telecom, networking, edge-computing, and industrial communication equipment.

05

Fanless Semi-Potted Construction

The GW-NHP350SW-55 uses free-air convection cooling without an integrated fan. Its semi-potted internal structure improves resistance to vibration, humidity, dust, and environmental stress while reducing acoustic noise, moving-part wear, and maintenance requirements.

06

Integrated Protection and Optional System Functions

The power supply includes output short-circuit, overcurrent, overvoltage, and overtemperature protection. It also provides an output LED indicator and adjustable output voltage, while optional DC OK signaling and redundant operation can support power-status monitoring and higher-availability system designs.

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 logic boards, FPGA platforms, telecom line cards, and digital-control equipment
GW-NHP350SW-4.2 Battery test equipment, cell-simulation platforms, laboratory systems, and specialized 4.2V loads
GW-NHP350SW-5 Embedded computing boards, storage backplanes, LED controllers, and high-current 5V equipment
GW-NHP350SW-12 Network appliances, security systems, embedded computers, and general 12V industrial electronics
GW-NHP350SW-15 Test instruments, industrial imaging systems, broadcast electronics, and specialized 15V equipment
GW-NHP350SW-24 PLC systems, robotic equipment, machine-vision platforms, and standard 24V industrial loads
GW-NHP350SW-36 Mobile robots, industrial actuators, motion-control equipment, and specialized 36V loads
GW-NHP350SW-48 Telecom base stations, PoE systems, network infrastructure, and distributed 48V platforms
GW-NHP350SW-55 High-power PoE equipment, telecom radio systems, edge communications, and specialized 55V DC platforms

DEPLOYMENT SCENARIOS

Where GW-NHP350SW-55 fits best.

The GW-NHP350SW-55 is designed for systems requiring a stable 55V rail within a compact, fanless power architecture. Its wide input range, high efficiency, semi-potted construction, and optional monitoring functions make it suitable for advanced networking and communication equipment.

Deployment Scenario Application Value
High-Power PoE Infrastructure Supplies DC power to compatible PoE switches, injectors, wireless access platforms, IP surveillance networks, and distributed powered devices
Telecom Radio Systems Supports remote radio equipment, communication modules, transmission units, and compatible base-station subsystems
Edge Communication Platforms Powers edge gateways, outdoor communication nodes, protocol-conversion equipment, and remote network appliances
Industrial DC Distribution Provides a regulated 55V rail for specialized industrial electronics, communication cabinets, and distributed DC-powered systems

POWER DESIGN

Reliability notes for continuous operation.

The GW-NHP350SW-55 combines a 350W 55V output with active PFC, high conversion efficiency, fanless cooling, and semi-potted construction. It is optimized for compact communication and industrial systems requiring reliable continuous operation.

  • Supports 90–264Vac universal input and 127–370Vdc input.
  • Delivers 55V at up to 6.3A with 350W rated output power.
  • Built-in active PFC improves input current quality.
  • Provides efficiency of up to 94.5%.
  • Uses free-air convection cooling without an integrated fan.
  • Semi-potted construction improves resistance to environmental stress.
  • Includes short-circuit, overcurrent, overvoltage, and overtemperature protection.
  • Supports installations up to 5,000 meters, with optional DC OK and redundant functions available.

INSTALLATION

Installation and operating guidance.

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

Item Guidance
Mounting Orientation Secure the unit firmly using the designated chassis mounting points
Ventilation Clearance Maintain sufficient open space around the perforated enclosure for natural airflow
Input Wiring Confirm whether the installation uses AC or high-voltage DC input before connection
Output Cable Sizing Use conductors rated to safely carry up to 6.3A with minimal voltage drop
Terminal Connection Tighten all screw terminals securely to reduce contact resistance and localized heating
Grounding Connect protective earth correctly before applying input power
Output Adjustment Verify the adjusted voltage with a calibrated meter before connecting the load
PoE Integration Confirm voltage limits, isolation, power budget, and downstream PoE control requirements
Temperature Management Apply appropriate load derating or additional enclosure airflow near the upper temperature limit
Optional Signals Confirm interface logic and wiring requirements before using DC OK or redundant functions

FAQ

Frequently asked questions about GW-NHP350SW-55.

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

What type of power supply is the GW-NHP350SW-55?

It is a slim enclosed AC/DC switching power supply with a regulated 55V output, built-in active PFC, screw-terminal connections, and fanless convection cooling.

What are the dimensions of the GW-NHP350SW-55?

The unit measures 220 × 62 × 26 mm, making it suitable for narrow communication chassis and compact industrial equipment.

What input voltage range does it support?

It supports 90–264Vac input and 127–370Vdc input.

What output power and current does it provide?

It delivers 55V at up to 6.3A, with a rated output power of 350W.

Is it suitable for high-power PoE equipment?

Yes. Its 55V output can support compatible high-power PoE architectures, provided the complete system verifies voltage range, isolation, power budgeting, and downstream PoE control requirements.

Can it be used in telecom radio systems?

Yes. It is suitable for compatible radio modules, communication units, transmission equipment, and remote telecom subsystems requiring a regulated 55V input.

Does the power supply require an integrated cooling fan?

No. It uses free-air convection cooling, so adequate ventilation clearance must be maintained around the enclosure.

What protection and monitoring functions are available?

The unit includes short-circuit, overcurrent, overvoltage, and overtemperature protection. Optional DC OK signaling and redundant operating functions are also available.

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