Siemens 6ES5451-4UA14 is a 32-channel digital output module for the SIMATIC S5 451-4 system, delivering 24 V DC outputs at up to 0.5 A per channel. The outputs are floating (potential-free) and arranged in two 16-channel groups within a compact, isolated design. Listed as a spare part for SIMATIC S5, the 6ES5451-4UA14 is discontinued with no direct replacement; it is intended for switching 24 V loads such as relays and other actuators in legacy automation installations.
