Specification: K65-12B Output power (with a 240Vac Input): 12 Adc 65 Vdc maximumcontinuous. 25 Adc 125 Vdc forcing for 10 seconds. AC input power: 100 to 280 Vac, single-phase 50 to 400 Hz, or 63 to 105 Vac; three phase, 50 to 400 Hz, 1092 VA maximum continuous burden AC sensing voltage: 90 to 140 Vac, 50/60 Hz; single- or three-phase. External voltage adjust rheostat: 10k ohm, 2 W, potentiometer Regulation accuracy:±0.5% Average responding Voltage drift:±1% voltage variation for a 40° C (104° F) change. Frequency compensation:1 or 2 V/Hz jumper selectable with knee adjustable from 45 Hz to 65 Hz. Package Include: 1 x AVR VR6