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R438

R438 is an analog AVR. It is designed for alternators with a AREP or PMG excitation. R438 controls the excitation current in order to maintain the output voltage of the alternator. R438 is performant in terms of voltage regulation, simple to set , to use and is reliable. It can run without LAM (U/f), or with LAM, selection is done by strap ST5.

SKU: R438AVR Category: Tag:

Description

  • Voltage regulation : ± 0.5 %.
  • U/F function (1).
  • LAM function (2).
  • Response time : 500 ms.
  • Nominal excitation current : 5A.
  • Maximum excitation current : 8A during 10 s.
  • Supply range and voltage détection : 95 to 520 V.
  • Protection : fuse 8A.