IEC 61204 pdf download Low-voltage power supply devices, d.c. output – Performance characteristics 1General 1.1Scope and object This international Standard describes a method for specifying requirements for low-voltagepower supply devices (including switching types) providing d.c.output(s) up to 200 v d.c. at apower level of up to 30 kW, operating from a.c. or d.c. source voltages of up to 60o v....