Switching Power Supply S-300-30 good quality parts, with high reliability, ... burnout, small volume, light, inside with inburst current control circuit, with high efficiency, low working temperture, 1050 ... over-voltage protection.Apparatus meter, communication device, SCM, auto-control, and electron equipmentTechnical Data Import AC voltage85 ~ 132VACor170 ~ ... -20 ~ +85oC Switching Power Supply(S-300-30)