Siemens 6ES7 322-1HF10-0AA0 Programmable Logic Controller Module

Siemens 6ES7 322-1HF10-0AA0 is an 8-channel digital output module (SM 322) for SIMATIC S7-300 controllers. It provides eight relay-type outputs that are isolated from the backplane, with per-channel ratings up to 5 A. The module supports loads in the range of 24 V to 230 V when powered by AC or 24 V to 120 V DC for DC loads, allowing direct control of field devices such as relays, contactors, and indicator lamps. It mounts to the S7-300 backplane via a 1x40-pole interface and uses spring-loaded terminals for straightforward wiring, compatible with 6ES7392-1BM01-0AA0 connectors. As part of the S7-300 family, this SM 322 digital output module is commonly used in automation panels to drive discrete loads and is listed by Siemens as a spare part for S7-300 installations, making it a practical replacement option in legacy systems.