LEROY SOMER AVR R438 AUTOMATIC VOLTAGE REGULATOR GENERATOR (NEW OPEN BOX)

Brand:  LEROY SOMER
MPN: R438

R438 is an analog AVR. It is designed for alternators with 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.

The R438 includes advanced protections such as over-excitation limitation and voltage sensing loss, and also features voltage droop for genset parallel operation. A Load Acceptance Module (LAM) is also included to handle load impact events.