The PSU203 is a 150mA/5V fixed double-output adjustable-voltage twin-rail Power Supply is a compact, split open mains power supply unit designed primarily for OEM use. The linear regulator ICs used have over-current and over-temperature protection. The unit is normally supplied connected for 240V operation. For 120V operation remove 240V link and insert both 120V links. For safe operation, the unit must be installed in an enclosure which prevents accidental contact with hazardous voltages, by providing appropriate insulation or guarding. If the enclosure is made of a conducting material or the internal surfaces have a conductive coating, ensure that no part of the power supply will come into contact with it and maintain an air gap clearance of minimum 10mm.
