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GW-GSP75W-48

GSP series

INQUIRY READY

GW-GSP75W-48

Greatwall / Industrial Power Supply / GSP series

GW-GSP75W-48 matches Multi-Protection Safe & Reliable, Test Equipment, Control Systems, Specialized Electronics, and Security Devices with 76.8W capacity, helping operators achieve steady operation across always-on infrastructure.

Model
GW-GSP75W-48
Product Type
Enclosed AC-DC Power Supply
Rated Output Power
76.8W
AC Input Voltage
90–264Vac
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PRODUCT OVERVIEW

Built for reliable, continuous power delivery.

The GW-GSP75W-48 is designed for equipment requiring a regulated 48V DC power rail. Its enclosed construction, active PFC, screw-terminal connection, and wide operating-temperature range make it suitable for telecom, networking, industrial communication, and remote monitoring applications. For this 76.8W capacity, allow practical headroom for startup demand and transient loads, while keeping intake and exhaust paths clear throughout continuous operation. Before integration, confirm the connector mapping, chassis clearance, and supported input conditions against the target power shelf.

Plan the GW-GSP75W-48 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-GSP75W-48 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

76.8W 48V Enclosed AC-DC Power Supply for Telecom Equipment, Network Infrastructure, Industrial Communication, and Remote Monitoring Systems

The GW-GSP75W-48 delivers up to 76.8W output power for telecom terminals, network devices, industrial communication equipment, remote monitoring systems, and other applications requiring a dependable 48V DC power source.

01

76.8W Stable DC Power Capacity

The GW-GSP75W-48 delivers up to 76.8W output power for telecom terminals, network devices, industrial communication equipment, remote monitoring systems, and other applications requiring a dependable 48V DC power source.

02

Compact 159 × 97 × 30 mm Enclosed Structure

Built in a compact 159 × 97 × 30 mm metal enclosure , this model is suitable for installation inside communication cabinets, network appliances, industrial gateways, monitoring equipment, and space-limited electronic systems.

03

Universal 90–264Vac Input Compatibility

It supports a wide 90–264Vac input range , enabling reliable operation across different regional power grids without manual voltage selection and simplifying international equipment deployment.

04

Stable 48V / 1.6A Output Performance

The unit provides a regulated 48V DC output at up to 1.6A , making it suitable for telecom electronics, network-control devices, industrial communication modules, distributed DC systems, and other equipment designed around a 48V power rail.

05

Active PFC and 90% Conversion Efficiency

With built-in active PFC and efficiency of up to 90% , the GW-GSP75W-48 helps improve input power utilization, reduce conversion losses, and support more stable thermal performance during continuous operation.

06

Reliable Operation in Demanding Environments

With a -30°C to +70°C operating temperature range , 4242Vdc isolation, adjustable output voltage, low-ripple output, and short-circuit, overcurrent, overvoltage, and overtemperature protection, this model supports dependable industrial and communication deployment.

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 Output Voltage Rated Output Power Nominal Output Current Best-Fit Application
GW-GSP75W-5 5V 75W 15A High-current control boards, LED controllers, and low-voltage embedded electronics
GW-GSP75W-12 12V 75.6W 6.3A Communication terminals, access-control systems, embedded devices, and 12V industrial equipment
GW-GSP75W-15 15V 75W 5A Test equipment, signal-processing modules, dedicated control circuits, and specialized electronics
GW-GSP75W-24 24V 76.8W 3.2A PLC systems, industrial sensors, relays, actuators, and compact automation equipment
GW-GSP75W-27 27V 75.6W 2.8A Communication devices, RF modules, monitoring equipment, and specialized 27V electronics
GW-GSP75W-48 48V 76.8W 1.6A Telecom terminals, network infrastructure, industrial gateways, and distributed 48V systems

DEPLOYMENT SCENARIOS

Where GW-GSP75W-48 fits best.

The GW-GSP75W-48 is designed for equipment requiring a regulated 48V DC power rail. Its enclosed construction, active PFC, screw-terminal connection, and wide operating-temperature range make it suitable for telecom, networking, industrial communication, and remote monitoring applications.

Deployment Scenario Application Description
Telecom Equipment Powers communication terminals, transmission controllers, radio interfaces, and compact telecom electronics
Network Infrastructure Supports network gateways, managed communication devices, and equipment using an internal 48V DC rail
Industrial Communication Supplies stable power to protocol converters, industrial gateways, field communication modules, and control interfaces
Remote Monitoring Systems Suitable for roadside cabinets, remote data-acquisition equipment, environmental monitoring, and supervision systems
Distributed DC Equipment Functions as a local AC-DC source for systems distributing regulated 48V power to connected electronics
Specialized Electronic Platforms Integrates into commercial and industrial equipment designed around a dedicated 48V supply

POWER DESIGN

Reliability notes for continuous operation.

The GW-GSP75W-48 combines an active-PFC input stage with a single-ended flyback conversion topology to convert universal AC input into a regulated 48V DC output. Its low-ripple and low-noise characteristics help maintain stable operation for communication circuits, network-control devices, monitoring electronics, and other sensitive loads.

  • The 4242Vdc isolation rating provides strong electrical separation between the AC input and DC output sections. Multiple protection functions and reliability-focused production tests help support continuous operation in demanding environments.
  • Key reliability features include:
  • Active PFC with single-ended flyback conversion
  • Up to 90% conversion efficiency
  • Low-ripple and low-noise regulated 48V output
  • Adjustable output voltage with LED status indication
  • Comprehensive SCP, OCP, OVP, and OTP protection
  • 4242Vdc input-to-output isolation
  • 100% high-temperature burn-in and 5G vibration testing
  • Conformal-coated PCB with operation support up to 5,000 meters
  • Design aligned with IEC, EN, and UL 62368 safety requirements

INSTALLATION

Installation and operating guidance.

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

Item Installation Recommendation
AC Input Connection Confirm the live, neutral, and protective-earth terminals before applying power
DC Output Connection Verify the positive and negative output terminals before connecting the load
Cable Selection Use output wiring capable of safely carrying the full 1.6A current
Screw-Terminal Tightening Tighten all terminals securely to reduce contact resistance and local overheating
Grounding Connect the protective-earth terminal to a reliable equipment ground
Ventilation Keep the enclosure openings unobstructed and maintain sufficient surrounding airflow
Installation Clearance Maintain suitable distance from heat-generating components and restricted-airflow areas
Output Adjustment Use a calibrated multimeter when making minor output-voltage adjustments
Load Capacity Keep the continuous system load within the rated 76.8W output limit
Cable Voltage Drop Consider conductor length and cable resistance when distributing 48V power over longer distances
High-Temperature Operation Consider improved airflow or output derating near the upper temperature limit
Maintenance Disconnect the AC input and allow stored energy to discharge before servicing

FAQ

Frequently asked questions about GW-GSP75W-48.

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

What type of power supply is the GW-GSP75W-48?

The GW-GSP75W-48 is a compact enclosed AC-DC switching power supply with active PFC and screw-terminal input and output connections.

What are the dimensions of the GW-GSP75W-48?

Its external dimensions are approximately 159 × 97 × 30 mm.

What input-voltage range does it support?

It supports a universal AC input range of 90–264Vac.

What are its rated output voltage, current, and power?

The unit provides 48V DC, a maximum output current of 1.6A, and a rated output power of 76.8W.

What is the efficiency of the GW-GSP75W-48?

Its listed conversion efficiency is 90%, helping reduce conversion loss and heat generation during continuous operation.

Can the output voltage be adjusted?

Yes. The output voltage can be adjusted slightly for system calibration or to compensate for voltage drop in the output wiring.

What protection functions are included?

The power supply includes short-circuit, overcurrent, overvoltage, and overtemperature protection.

What applications are best suited to this model?

It is suitable for telecom equipment, network infrastructure, industrial communication devices, distributed 48V systems, remote monitoring equipment, and specialized electronics requiring a regulated 48V DC supply.

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