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GW-GSP75W-27

GSP series

INQUIRY READY

GW-GSP75W-27

Greatwall / Industrial Power Supply / GSP series

GW-GSP75W-27 is a specialized choice for Multi-Protection Safe & Reliable, Test Equipment, Control Systems, Security Devices, and Specialized Electronics; 75.6W capacity underpins reliable integration in space-conscious equipment.

Model
GW-GSP75W-27
Product Type
Enclosed AC-DC Power Supply
Rated Output Power
75.6W
AC Input Voltage
90–264Vac
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PRODUCT OVERVIEW

Built for reliable, continuous power delivery.

The GW-GSP75W-27 is designed for systems requiring a regulated 27V DC power rail rather than the more common 12V or 24V outputs. Its enclosed metal construction, screw-terminal connection, active PFC, and wide operating-temperature range make it suitable for specialized communication, measurement, monitoring, and embedded applications. For this 75.6W 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-27 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-27 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

75.6W 27V Enclosed AC-DC Power Supply for Communication Equipment, RF Systems, Test Instruments, and Specialized Electronics

The GW-GSP75W-27 delivers up to 75.6W output power for communication terminals, RF modules, test instruments, specialized controllers, and other electronic equipment requiring a regulated 27V DC power source.

01

75.6W Stable DC Power Capacity

The GW-GSP75W-27 delivers up to 75.6W output power for communication terminals, RF modules, test instruments, specialized controllers, and other electronic equipment requiring a regulated 27V 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 devices, laboratory equipment, control cabinets, embedded platforms, and space-limited electronic systems.

03

Universal 90–264Vac Input Compatibility

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

04

Stable 27V / 2.8A Output Performance

The unit provides a regulated 27V DC output at up to 2.8A , making it suitable for communication circuits, RF equipment, signal-processing modules, monitoring devices, and dedicated electronic loads requiring a 27V power rail.

05

Active PFC and 88% Conversion Efficiency

With built-in active PFC and efficiency of up to 88% , the GW-GSP75W-27 helps improve input power utilization, reduce conversion losses, and support 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 commercial 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 75W Approximately 1.56A Telecom devices, network equipment, and distributed 48V power systems

DEPLOYMENT SCENARIOS

Where GW-GSP75W-27 fits best.

The GW-GSP75W-27 is designed for systems requiring a regulated 27V DC power rail rather than the more common 12V or 24V outputs. Its enclosed metal construction, screw-terminal connection, active PFC, and wide operating-temperature range make it suitable for specialized communication, measurement, monitoring, and embedded applications.

Deployment Scenario Application Description
Communication Terminals Powers communication controllers, radio terminals, interface units, and dedicated transmission electronics
RF and Signal Equipment Supplies stable 27V power to RF modules, signal-processing circuits, amplifiers, and related equipment
Test and Measurement Systems Supports laboratory instruments, test fixtures, calibration devices, and monitoring equipment
Specialized Control Systems Powers custom controllers, interface boards, and industrial electronics designed around a 27V rail
Monitoring Equipment Suitable for remote monitoring devices, data-acquisition modules, and electronic supervision systems
Embedded Electronic Platforms Functions as an internal AC-DC power module in specialized commercial and industrial equipment

POWER DESIGN

Reliability notes for continuous operation.

The GW-GSP75W-27 combines an active-PFC input stage with a single-ended flyback conversion topology to convert universal AC input into a regulated 27V DC output. Its low-ripple and low-noise design helps maintain stable power delivery for communication circuits, RF modules, signal-processing electronics, and measurement devices.

  • 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 88% conversion efficiency
  • Low-ripple and low-noise regulated 27V 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 2.8A 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 75.6W output limit
Sensitive Circuits Use appropriate grounding and cable routing for RF, analog, and measurement electronics
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-27.

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

What type of power supply is the GW-GSP75W-27?

The GW-GSP75W-27 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-27?

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 27V DC, a maximum output current of 2.8A, and a rated output power of 75.6W.

What applications are suitable for a 27V output?

It is suitable for communication devices, RF modules, test instruments, monitoring equipment, and specialized electronic systems designed around a regulated 27V power rail.

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.

Is it suitable for high-temperature and high-altitude operation?

Yes. It supports operation from -30°C to +70°C and installation at altitudes up to 5,000 meters. Appropriate airflow and output derating should be considered under demanding conditions.

KEEP EXPLORING

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