... Winding type generator voltage regulator is a compatible replacement for Leroy Somer R448, R449, R438, and AEM110RE016 and also Olympian FG ... rear end of the generator. Features and Technical Data Leroy Somer avrR438Voltage Sensingterminal 0-110V=95-140V terminal 0-220V = ... SX440,SX460,AS440,AS480,EA440-T,MX450Leroy Somer AVR:R230,R438,R448,R449,R250,R450Marathon AVR:SE350,EA350Siemens/Basler AVR:AVC63 ...