LEROY SOMER AVR: AVR LEROY SOMER R230, AVR LEROY SOMER R250, AVR LEROY SOMER R438, AVR LEROY SOMER R448, AVR LEROY SOMER R449, Technical Data : Sensing Input Voltage : 90 ~ 480 VAC Max, 1Phase, 2 Wire Frequency : 50/ 60Hz Power Input : Voltage 35 ~ 75 VAC Output : Voltage 43 VDC Regulation + / - 1% Warranty LEROY SOMER AVR R230 LEROY SOMER AVR R250 LEROY SOMER AVR R438 LEROY SOMER AVR R448 LEROY SOMER AVR R449