GSP series

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GW-GSP75W-12

Greatwall / Industrial Power Supply / GSP series

GW-GSP75W-12 matches Multi-Protection Safe & Reliable, Communication Equipment, Industrial Control, Embedded Systems, and Access Control with 75.6W capacity, helping operators achieve an installation-ready choice for mission-critical equipment.

Model
GW-GSP75W-12
Product Type
Enclosed AC-DC Power Supply
Rated Output Power
75.6W
AC Input Voltage
90–264Vac

Need compatibility confirmation? Send us your model, label photo, power rating, and connector requirements.

PRODUCT OVERVIEW

Built for reliable, continuous power delivery.

The GW-GSP75W-12 is designed for systems requiring a compact and dependable 12V DC power source. Its enclosed metal construction, screw-terminal connection, active PFC, and wide operating-temperature range make it suitable for industrial, communication, security, and embedded applications. For this 75.6W capacity, qualification should include airflow direction, thermal margin, cable routing, and access for routine module replacement. Backplane pinout, control signaling, and mechanical retention should be checked together before the unit is approved for production use.

Plan the GW-GSP75W-12 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-12 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 12V Enclosed AC-DC Power Supply for Industrial Control, Communication Equipment, and Embedded Systems

The GW-GSP75W-12 delivers up to 75.6W output power for industrial controllers, communication terminals, embedded electronics, access-control devices, and other equipment requiring a stable 12V power source.

01

75.6W Stable DC Power Capacity

The GW-GSP75W-12 delivers up to 75.6W output power for industrial controllers, communication terminals, embedded electronics, access-control devices, and other equipment requiring a stable 12V 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 control cabinets, communication devices, compact machinery, and integrated electronic systems where internal space is limited.

03

Universal 90–264Vac Input Compatibility

It supports a wide 90–264Vac input range , allowing the power supply to operate across different regional grids without manual voltage selection and simplifying global equipment deployment.

04

Stable 12V / 6.3A Output Performance

The unit provides a regulated 12V DC output at up to 6.3A , supporting control boards, communication modules, embedded computers, motors, relays, and other medium-current 12V loads.

05

Active PFC and 86% Conversion Efficiency

With built-in active PFC and efficiency of up to 86% , the GW-GSP75W-12 helps improve input power utilization, reduce conversion losses, and support stable operation in continuously powered equipment.

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, specialized control circuits, and dedicated electronic devices
GW-GSP75W-24 24V 75W 3.125A PLC systems, industrial sensors, actuators, and automation equipment
GW-GSP75W-27 27V 75W Approximately 2.78A Communication equipment and systems requiring a regulated 27V power rail
GW-GSP75W-48 48V 75W Approximately 1.56A Telecom devices, network equipment, and distributed 48V power systems

DEPLOYMENT SCENARIOS

Where GW-GSP75W-12 fits best.

The GW-GSP75W-12 is designed for systems requiring a compact and dependable 12V DC power source. Its enclosed metal construction, screw-terminal connection, active PFC, and wide operating-temperature range make it suitable for industrial, communication, security, and embedded applications.

Deployment Scenario Application Description
Industrial Control Systems Powers control boards, relays, interface modules, sensors, and compact automation equipment
Communication Equipment Supports gateways, communication terminals, routers, and network-control electronics
Embedded Computing Supplies stable 12V power to embedded computers, processor boards, and peripheral modules
Access-Control Systems Suitable for door controllers, readers, intercom equipment, and security-system electronics
Display and Signage Equipment Powers display controllers, information terminals, and compact digital-signage systems
Integrated Electronic Equipment Functions as an internal AC-DC module in commercial and industrial devices

POWER DESIGN

Reliability notes for continuous operation.

The GW-GSP75W-12 uses an active-PFC input stage and a single-ended flyback conversion structure to convert universal AC input into a regulated 12V DC output. Its low-ripple and low-noise design helps maintain stable power delivery to sensitive control and communication circuits.

  • The 4242Vdc isolation rating provides reinforced separation between the AC input and DC output sections. The unit also incorporates reliability-focused design and testing measures for continuous equipment operation.
  • Key reliability features include:
  • · Active PFC with single-ended flyback conversion
  • · Up to 86% conversion efficiency
  • · Low-ripple, low-noise regulated 12V 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 support for operation up to 5,000 meters

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 6.3A 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 Avoid positioning the power supply directly beside high-temperature components
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
Startup Loads Confirm that motors, relays, and capacitive loads do not exceed the available startup current
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-12.

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

What type of power supply is the GW-GSP75W-12?

The GW-GSP75W-12 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-12?

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 12V DC, a maximum output current of 6.3A, and a rated output power of 75.6W.

What is the efficiency of the GW-GSP75W-12?

Its listed conversion efficiency is 86%, helping reduce power loss and heat generation compared with lower-efficiency designs.

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 applications?

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