Siemens 6ES5450-3AA11 SIMATIC S5 Interface Module

Siemens 6ES5450-3AA11 SIMATIC S5 Digital Output Module is a 32-channel DC output accessory in the compact K configuration of the 450-series for the SIMATIC S5 family. The module provides 32 DC 24 V outputs, each capable of switching up to 0.12 A, and all outputs are galvanically isolated from the backplane and from each other to help protect the controller and wiring from transients. Designed to plug into an S5 backplane, it expands the controller’s ability to drive external devices such as relays, lamps, or small DC actuators from the 450-series system. The 6ES5450-3AA11 designation is used by Siemens and distributors to identify this 32-out, 24 V DC variant within the S5 digital output lineup, making it a familiar spare for legacy automation projects that rely on the S5 rack architecture. Verify compatibility with your S5 backplane and ensure the load profile matches the 0.12 A per-channel rating to maintain safe operation over time.