The PSI300 is rugged, fully encapsulated product conductive MIL-grade silicon rubber compound, to ensure immunity to shock, vibration and humidity. It uses field proven, microprocessor controlled high-frequency PWM technology to generate 300VA output power with pure sign wave output voltage.

It is a mature design with a track record in numerous applications.The DC/DC input stage boosts the input voltage to a higher DC voltage, which feeds the DC/AC inverter to generate the required AC output.The use of high-frequency conversion enables a compact construction, low weight and high efficiency. The unit has full electronic protection.

The input and output are filtered for low noise. Cooling is via baseplate to a heatsinking surface and by natural convection.

SPECIFICATIONS TABLE

Input voltage range12VDC
24VDC
48VDC
110 & 125VDC
Input ProtectionInrush current limiting
Internal safety fuse,
Reverse Polarity Protection
Load Crest FactorMaximum 3% at 90% load
Output  Freq.50Hz, 60Hz, 400Hz options
Output Power300 VA
Output Voltage115VAC / 230VAC options
EfficiencyInput voltage  / model dependent typically
80% at 100% load
RegulationLoad:  ±2% from 10% to 100% load step.
Line:   ±1.0% over input range
Operating Temp. -40ºC to +70ºC  cold plate temperature
CoolingConvection  / Conduction cooled

Ask for Assistance

Selecting the right power supply for your application is not a small task. Let our technical sales engineers guide you through the process of choosing the right solution for your needs.

Below some parameters usually required to size and select the right power supply:

  • Power & control requirements
  • Output & Input Voltage / Multioutput Voltage / Variable Voltage
  • Redundancy level
  • Mounting
  • Inrush Current
  • Environmental specifications (Temperature, altitude, vibration, shock)
  • Specific Industries Standards (Railway, Military, Medical)
  • Terminals

Contact Our Team

Contact our team of experienced engineers to discuss your unique power conversion and backup needs. We offer a wide range of highly reliable components that can be integrated and customized to create a solution that meets or exceeds your requirements.

For power automation systems please contact us at power.systems.automation@heliosps.com.au