A miniature and fanless AC/DC power supply unit, which converts AC into four highly regulated DC voltages between 1.5VDC and 60VDC. The power supply unit is used mainly in telecommunication systems, analysis equipment, computerised systems and medical systems.

GIR 1 and 6 HSEN to heading 8504 Note (II), Paragraph A of HSEN to Heading 8504 Text to codes 8504, 8504 40, 8504 40 83 and 8504 40 83 90