High-power high-voltage 40kW 150V to 450V 200A bi-directional air-cooled DC/DC converter RedPrime from Zekalabs

The DC/DC power converter is a bidirectional cabinet mountable unit with many different applications. Moreover, the converter can be stacked for achieving higher power with no communication between them. The rated current overload capacity allows the converter to be used in highly dynamic applications.

Having numerous communication interfaces including Ethernet, RS485 and CANBus and utilizing MODBUS, makes the integration with your industrial network an easy task. PROFIBUS interface is also available using the MODBUS-to-PROFIBUS Gateway.

Several digital and analog inputs and outputs are available for additional programming and logic allowing extra flexibility during the system design or an ongoing project.

Powered by ZekaTrace™ and ZekaStream™ technology you will be able to display the electrical characteristics and diagnose the health of the system with an unprecedented resolution for the industry. Only one such device in your design is enough to change the way you commission the whole power plant.

Having a design with fully integrated control, power units and filter bank balances the size and the weight of the installed components. Mounting and servicing of these usually heavy components within the cabinet becomes a much more comprehensive task.


This versatile, multi-application device provides various modes of operation, programmable limitations and additional logic integration possibilities and it can easily be used into the following applications:

  • charging stations
  • energy storage 
  • battery / supercaps charging and discharging
  • load balancing and peak shaving 
  • hybrid/electrical propulsion 
  • micro-grid

Technical data

Nominal power40 kW
Minimum low-voltage side voltage150 Vdc
Maximum low-voltage side voltage410 Vdc
Nominal low-voltage side current200 Adc
Maximum low-voltage side current220 Adc (not more than 20 min)
Minimum high-voltage side voltageLow-voltage side + 50 Vdc
Maximum high-voltage side voltage450 Vdc
Maximum high-voltage side current115 Adc
Efficiency~ 98 % (load power > 20 %)
Energy transfer directionBidirectional
CoolingForced air - internal fans
Power supply voltage24 Vdc ±10%
Mechanical dimensions (W x L x H)350 x 400 x 186 mm
Weight28.5 kg
Communication interfacesMODBUS RTU over RS485
CAN (custom protocol)
PROFIBUS (requires protocol converter)

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