Flexa – Modular Uninterruptible Power Supply

Single Phase Output From  3kVA Up To 12kVA

This solution is compatible with 230 Vac loads and 48 Vdc batteries (Lead-acid or NiCd). The modularity allows to increase the power output step-by-step from 3 to 12 kVA. Fully equipped, this rack system can reach the power density of 12 kVA in only 2U high offering the highest one in the market.

Rack Integration

The complete solution offers, in only 5U high, the converters, the AC distribution, the manual by-pass and the monitoring solution (Inview S). Simply connect your batteries and your loads and the all-in-one solution is ready to secure your most critical assets! You then have the choice to size the batteries according to the backup time you require.

The subrack system is available with 1, 2, 3 or 4 modules:

  • 1 module: 3 kVA
  • 2 modules: 6 kVA (or 3 kVA in N+1)
  • 3 modules: 9 kVA (or 6 kVA in N+1)
  • 4 modules: 12 kVA( or 9 kVA in N+1)


  • Telecom (core sites, edge computing and base stations)
  • Datacentres
  • Mass Transport
  • Industrial
  • Power Quality
  • Oil & Gas
  • Marine
  • Off-Shore


In/Out: DC voltage (input range)48 Vdc (40-60)
In/Out: AC voltage (input range)230 Vac (150-265)
Output power (kW)2.4 kW to 9.6 kW
Output power (kVA)3 kVA to 12 kVA
Efficiency: DC/AC94%
Efficiency: AC/AC96%
Temperature-20°C to 60°C
Dimension5U x 482 mm x 520 mm
Part number: 3 kVAS72A73E0104SC100J001
Part number: 6 kVAS72A73E0204SC100J001
Part number: 9 kVAS72A73E0304SC100J001
Part number: 12 kVAS72A73E0404SC100J001

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

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