Siemens 6Es5 451-8Ma11 Digital Output Module

Siemens 6ES5 451-8MA11 is an eight-channel digital output module for SIMATIC S5 ET 200U distributed I/O, delivering 24 V DC outputs with up to 1 A per channel. Designed for ET 200U DP Standard configurations, it provides eight independent outputs that switch 24 V DC loads under control of a compatible S5 PLC. The module is listed in Siemens’ ET 200U documentation with the order number 451-8MA11, confirming its place in the 6ES5 digital output family. Typical applications include driving relays, solenoids, valves, and other 24 V DC actuators in automation systems where discrete on/off control is required. Electrical ratings specify 24 V DC operation with a per-channel current rating up to 1 A, enabling direct drive of moderate loads within Siemens’ DP-standard I/O architectures. It integrates into the standard ET 200U backplane and communicates via the appropriate S5 I/O bus interface, aligning with Siemens’ SIMATIC S5 automation portfolio.