NTN4K2 Series

4.2kW regulated high voltage AC-DC power supplies with isolated output voltages from 0-6.5VDC to 0-350VDC

The NTN4K2 series are highly stable linear regulated power supplies with low ripple and an isolated output. Featuring thyristor (SCR) pre-regulation followed by transistor regulation to provide double stabilization.

The power supplies can be operated in local, analog (optional) and digital (optional) operating modes.

Sense line connections provide feedback compensation for voltage drop in the load lines.


  • Output voltages 0-6.5VDC to 0-350VDC isolated
  • 2 or 3 phase AC input
  • Continuous operation at full rated power
  • Multi-function control panel with user friendly interface
  • Digital, LAN and USB interface option
  • Analog programming/interface option
  • Manual voltage & current control with automatic transition & digital display
  • Set-point display via a button
  • Set-point adjustment possible with disabled output
  • Push-button switch for output voltage
  • Short circuit & arc protection
  • Inrush current limiter
  • 2 year warranty
Image Model Name Power Input Voltage Output Voltage Output Current Datasheet Stock Check RFQ
NTN4K2-6V5 4200W Three Phase 6.5V 400A Datasheet RFQ
NTN4K2-12V5 4200W Two Phase 12.5V 250A Datasheet RFQ
NTN4K2-20 4200W Two Phase 20V 200A Datasheet RFQ
NTN4K2-35 4200W Two Phase 35V 120A Datasheet RFQ
NTN4K2-65 4200W Two Phase 65V 60A Datasheet RFQ
NTN4K2-125 4200W Two Phase 125V 30A Datasheet RFQ
NTN4K2-200 4200W Two Phase 200V 20A Datasheet RFQ
NTN4K2-350 4200W Two Phase 350V 12A Datasheet RFQ
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