GSP series

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GW-GSP350W-27

Greatwall / Industrial Power Supply / GSP series

GW-GSP350W-27 combines 351W capacity and built-in dc fan for Access Control System, Telecommunication Equipment, and Cctv System, creating steady operation across always-on infrastructure.

Model
GW-GSP350W-27
Product Type
Enclosed AC-DC Power Supply
Rated Output Power
351W
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-GSP350W-27 is designed for professional equipment requiring substantial power from a stable 27V rail. Its active PFC, half-bridge LLC conversion, built-in fan, compact enclosure, and standoff output connection support integration into communication, broadcast, RF, and telemetry applications. For this 351W capacity, backplane pinout, control signaling, and mechanical retention should be checked together before the unit is approved for production use.

Plan the GW-GSP350W-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-GSP350W-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

351W 27V Enclosed AC-DC Power Supply for RF Amplifiers, Broadcast Systems, Microwave Links, and Remote Telemetry Equipment

The GW-GSP350W-27 delivers a regulated 27V / 13A output with up to 351W of output power , supporting RF amplifier systems, broadcast transmission equipment, microwave communication links, remote telemetry platforms, and other professional electronics requiring a dependable 27V DC source.

01

351W High-Power DC Capacity

The GW-GSP350W-27 delivers a regulated 27V / 13A output with up to 351W of output power , supporting RF amplifier systems, broadcast transmission equipment, microwave communication links, remote telemetry platforms, and other professional electronics requiring a dependable 27V DC source.

02

Low-Profile 215 × 115 × 30 mm Enclosed Structure

Built in a slim 215 × 115 × 30 mm metal enclosure , this model is suitable for installation inside communication cabinets, broadcast racks, test platforms, telemetry stations, and other equipment where vertical mounting space is limited.

03

Universal 90–264Vac Input Compatibility

It supports a wide 90–264Vac input range , allowing operation across common international AC power grids without manual input-voltage selection.

04

Stable 27V / 13A Output Performance

The unit provides a regulated 27V DC output at up to 13A , making it suitable for RF power stages, microwave radios, broadcast interfaces, telemetry controllers, communication processors, and other dedicated 27V loads.

05

Active PFC and Half-Bridge LLC Conversion

Built-in active PFC with PF greater than 0.99 improves input power utilization, while the half-bridge LLC topology supports efficient conversion, stable voltage regulation, and dependable continuous operation.

06

Built-In Fan Cooling and Comprehensive Protection

An integrated DC fan provides forced-air cooling for sustained high-power operation. Low-ripple output, adjustable output voltage, an output-status LED, and short-circuit, overcurrent, overvoltage, and overtemperature protection support reliable operation from -30°C to +70°C .

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 Current Rated Power Best-Fit Application
GW-GSP350W-4 4Vdc 60A 240W Semiconductor validation, burn-in fixtures, high-current control boards, and specialized 4V electronics
GW-GSP350W-5 5Vdc 60A 300W Embedded computing, LED processing, industrial controllers, and high-current 5V systems
GW-GSP350W-12 12Vdc 29.2A 350.4W Industrial computers, machine-vision platforms, security equipment, and 12V electronic systems
GW-GSP350W-15 15Vdc 23.3A 349.5W Test instruments, signal-processing equipment, imaging controllers, and dedicated 15V platforms
GW-GSP350W-24 24Vdc 14.6A 350.4W PLC systems, industrial automation, robotic interfaces, actuators, and process-control equipment
GW-GSP350W-27 27Vdc 13A 351W RF equipment, telemetry platforms, broadcast electronics, and specialized 27V systems
GW-GSP350W-36 36Vdc 9.7A 349W Motor-drive equipment, mobile automation, battery test systems, and dedicated 36V loads
GW-GSP350W-48 48Vdc 7.3A 350.4W Telecom infrastructure, industrial networking, remote communication, and distributed 48V systems

DEPLOYMENT SCENARIOS

Where GW-GSP350W-27 fits best.

The GW-GSP350W-27 is designed for professional equipment requiring substantial power from a stable 27V rail. Its active PFC, half-bridge LLC conversion, built-in fan, compact enclosure, and standoff output connection support integration into communication, broadcast, RF, and telemetry applications.

Deployment Scenario Application Description
RF Power Amplifiers Supplies stable 27V power to amplifier stages, RF drivers, communication modules, and test assemblies
Broadcast Transmission Powers studio transmission interfaces, signal-distribution systems, control electronics, and broadcast processors
Microwave Communication Links Supports microwave radios, backhaul terminals, link controllers, and compact communication equipment
Remote Telemetry Stations Powers data-acquisition units, monitoring controllers, wireless terminals, and field communication devices
Communication Test Platforms Suitable for RF validation racks, signal-generation systems, amplifier test fixtures, and laboratory communication equipment
Specialized 27V Electronics Integrates into custom communication, sensing, control, and embedded platforms designed around a regulated 27V rail

POWER DESIGN

Reliability notes for continuous operation.

The GW-GSP350W-27 combines an active-PFC input stage with a half-bridge LLC conversion architecture to produce a regulated 27V output from a universal AC source. Its 13A output rating supports demanding communication and RF loads while maintaining a compact mechanical profile.

  • The built-in DC fan provides forced-air cooling for sustained operation near the rated load. The optional dual-output overvoltage-protection configuration should be confirmed before integration when this function is required.
  • Key reliability features include:
  • · Active PFC with PF greater than 0.99 and half-bridge LLC conversion
  • · Universal 90–264Vac input compatibility
  • · Built-in DC fan for forced-air cooling
  • · Up to 91.5% efficiency with low-ripple, low-noise 27V output
  • · Adjustable output voltage with LED status indication
  • · Comprehensive SCP, OCP, OVP, and OTP protection
  • · Optional dual-output overvoltage-protection configuration
  • · 100% high-temperature burn-in 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 Confirm the live, neutral, and protective-earth terminals before applying power
Output Connection Verify the positive and negative 27V output terminals before connecting the load
Cable Selection Use short, low-resistance conductors capable of safely carrying the full 13A output current
Terminal Tightening Secure the standoff terminals firmly to minimize contact resistance and localized heating
Grounding Connect the protective-earth terminal to a reliable equipment ground
Fan Clearance Keep the fan intake and exhaust areas free from cables, panels, and airflow obstructions
Installation Clearance Maintain adequate spacing around the enclosure for forced-air cooling
Output Adjustment Use a calibrated multimeter and make only small adjustments while monitoring the connected load
Load Capacity Keep the continuous load within the rated 351W and 13A output limits
RF Equipment Use appropriate grounding, shielding, and cable routing to reduce interference in sensitive communication circuits
Startup Demand Confirm that combined startup current remains within the available output capacity
Maintenance Disconnect the AC input and allow stored energy to discharge before inspection or servicing

FAQ

Frequently asked questions about GW-GSP350W-27.

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

What type of power supply is the GW-GSP350W-27?

The GW-GSP350W-27 is an enclosed AC-DC switching power supply with active PFC, half-bridge LLC conversion, built-in forced-air cooling, and a regulated high-current 27V output.

What are the dimensions of the GW-GSP350W-27?

Its external dimensions are approximately 215 × 115 × 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 13A, and a rated output power of 351W.

Is the GW-GSP350W-27 suitable for RF and broadcast equipment?

Yes. Its regulated 27V output is suitable for compatible RF amplifiers, microwave radios, broadcast interfaces, telemetry controllers, and communication test platforms.

Does the power supply use a cooling fan?

Yes. It includes a built-in DC fan for forced-air cooling during high-power 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. An optional dual-output overvoltage-protection configuration is also indicated.