... -O/P 3KVAC,I/P-FG 1.5KVAC,1minuteWorking temperature -20-50°C 100% 70°C 50%DC OK signal Open ... power supply MDR-20ModelOutputTolerance VoltageRipple and noiseEfficiencyMDR-20-55V, 0-3A±2%80mvp-p76%MDR-20-1212V, 0-1.67A±1%120mvp ... -p80%MDR-20-1515V, 0-1.34A±1%120mvp ... -p81%MDR-20-2424V, 0-1.0A±1%150mvp ...