FlexStorm Series

High Efficiency modular Rectifier cabinet

Configurable up to 72kW 110/125Vout

Premium PSU’s High Frequency FlexStorm Series offers the flexibility, reliability and power density that industrial environments require. Based on a modular design, the solution easily adapts to each project’s needs by means of power and control. Configurable cabinet: up to 72kW 10/125Vout modular rectifier.

Modular Solution
100% flexible and scalable
Compact and robust design
High efficiency
Web server
Configurable redundant system: N+N
Active Current sharing
MTTR under10 minutes (including fan)
Output short circuit protection
Overtemperature protection
Overvoltage protection

Power generation
SUB Stations: high and medium voltage
Power utility
Control and signaling centers
Minning & Oil

A scalable solution that goes from the power module, to  the subrack including control module and display, the whole solution as a cabinet. Parallel operation makes it flexible to adapt the capacity to changing load requirements.

Due to its high efficiency, power consumption is very low. Over its product lifetime, the savings in terms of money and power are higher than older systems, making this a good replacement unit.

FlexStorm Series

Based on a modular design, it is a scalable solution that goes from the power module, to the subrack including control and display and the whole solution as a cabinet.

FlexStorm Series offers a high level of power supply to critical systems, guaranteeing its perfect operation without outages. Typical applications are power generation, medium and high voltage substations, telecommunications, data and telecommunications networks…

BAS-18K modular
BAS-18K hotplug
BAS-18K efficiency
BAS-18K Communications
3 years warranty

The FlexStorm cabinet is a high efficiency 12kW + 3kW or 6kW (1 or 2 backup power module) rectifier with galvanic isolation between input and output. The system consists of a 19″ Subrack  containing 5 or 6 FDS-3K power modules (4+1 or 4+2 redundancy) and a control module. The communications module is installed in the door. The cabinet is equipped with auxiliary and protection devices, see details in the block diagram section.

The control module centralizes all measurements to run the battery charge and output voltage. The FDS-3K power modules communicate with control module via PMBus. The communication module allows local and remote control. RS-232 for local control and Ethernet for local and remote control are the implemented protocols.

The product is protected against over temperature, overvoltage, overcurrent and short-circuits. The battery charging is optimized to NiCd cells.

Technical Specifications


Input Parameter
AC input voltage (nominal) 3 x 400Vac + N
AC input voltage (range)340...460 Vac
AC input frequency (range)45...65 Hz
Power factor >0.94 (>50% Load)
Efficiency>89 % (>25% Load) | >93% (>100% Load)


Default output voltage125Vdc
Output voltage adjustment86…157Vdc
Maximum output current480A
Current sharingParallel Active
Battery typeNiCd & PbCa
Static voltage regulation< +/- 1% typical
Response time < 10 ms (∆ 20%-100%-20% Load)
Ripple (BW: 20mHz)< 90 mVpp


LEDsGreen: Vin-Vout OK Yellow: Warning Red: Alarm
Alarm contacts6 low voltage analog inputs / 4 digital inputs
Local controlRS-232
Remote controlEthernet & SNMP


Cooling Internal forced air controlled (modules)
Max. Relative humidity95% with no condensation
Operating temperature range-10ºC ... 60ºC
Storage temperature-40ºC ... 85ºC
Installation heightUp to 2000m
MTBF250.000 @ 25ºC according to EN29500


  • Battery autonomy end contactor
  • Output circuit breaker distribution
  • Voltage drop Diodes
  • Communications
  • Anti-reverse diode
  • IP Grade
  • Cabinet color
  • Special documentation
  • Seismic grade protection
  • Other input voltages available
  • Output distribution with DC/DC
  • Output inverter
  • Batteries

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