FlexKraft™
Air-Cooled Rectifiers

Reliable DC power and performance
for demanding industrial environments

FlexKraft™ Air-Cooled Rectifiers provide premium DC power and performance for demanding industrial environments. Designed for 24/7 continuous operation under harsh conditions, the rectifiers include unique features such as multiple outputs, upgradeable power, self-serviceability and fail-safe operation.

With its modular design and an output ranging from 0-60V and 0-48,000A and a multitude of Control Options, we offer the flexibility to provide a best-fit solution to meet your most demanding process and application requirements.

The FlexKraft™ will help your business save money and become more competitive by reducing energy consumption and maintenance cost while increasing output and improving product quality. It’s not just another black box — it’s there to power your success.

Learn more about what our customers like about the FlexKraft™ in our Surface Finishing section to make sure you Select the Right Equipment for your specific needs.

With more than 80 years of experience, we won’t let you down!

Specifications are subject to change without notice.



  • Remote control box ’basic version’ with analogue or digital display, potentiometers etc.
  • RS-232C interface for control of one power supply.
  • Analogue/Digital interface. Two controls, and two status signals 0–10 VDC and two controls and two status signals 24 VDC.
  • Standard configuration: Iset, Uset, lact and Uact: 0–10 VDC. On/Off, Block/Run, Power On and Alarm as digital signals: 24 VDC.
  • Analogue interface with four inputs and four outputs galvanically isolated. Control and status signals 0-10 VDC or 0/4–20 mA.
  • Standard configuration: Iset, Uset, lact and Uact: 4–20 mA
  • Digital interface with four inputs and four outputs. Control signals 24 VDC. Status signals via voltage free relay contacts; contact data 24 VDC or 24 VAC. Standard configuration: On/Off, Block/Run, Power On and Alarm.
  • Raise / Lower function.
  • Electrically controlled AC breaker.
  • External reference shunt, 60 mV.
  • Polarity Reversal.