EN-60950-1, UL-60950-1. EN, UL and CE certified. 3. Recom 4W, PCB Mount, Encapsulated, Switch Mode AC-DC Power Supply - RAC04-C/230 Series. The RAC04-C/230 Power Supply comes in an encapsulated PCB-mount package style. This 4W Regulated AC/DC converter offers universal input and High efficiency of up to 79%. The RAC04-C/230 has a Maximum No Load ˂100mW with a 3.75kVac isolation. Ideal applications of this encapsulated power supply are in home automation, board-level power supplies, instrumentation systems and standby applications. The Recom RAC04/277 regulated converter comes with a three year warranty. Universal input 80-26Vac High efficiency up to 79% Isolated Output 3.75kVac / 1 minute Short circuit protection Meets EN55022 Class B