The 505-6660 power supply module is a Siemens TI505/SIMATIC 505 series component designed to power TI505 peripheral modules, delivering both +5 V DC and -5 V DC rails. It accepts 110/220 V AC input and is rated around 60 W, with the +5 V rail capable of up to 55 W and the -5 V rail up to about 3.75 W. In configurations that require redundancy, the PPX:505-6660A variant supports redundant power supply setups in TI505 systems. This module is commonly used in TI505 racks alongside TI505 CPUs and I/O modules to maintain stable 5 V logic power for peripheral devices.
