The Siemens 6ES7922-3BF00-0AC0 is a 40-pole front connector with a 5 m single-core cable, purpose-built for SIMATIC S7-300 digital I/O modules. It uses screw-type terminals on the enclosure side and terminates in 40 individually numbered single cores (H05V-K, 0.5 mm², blue sheath) for direct wiring into the panel. Rated at 24 V with a maximum of 30 V, this connector handles the standard S7-300 signal level for digital inputs and outputs. The 5 m cable length gives enough reach from the module rack to a typical terminal block row in a 600 mm deep enclosure.
Integration notes
The connector mates with the S7-300 front-panel socket 6ES7392-1AM00-0AA0. The 40 single cores are consecutively numbered from 1 to 40, matching the module's terminal assignment. Each core is 0.5 mm², PVC-insulated, and colour-coded blue — suitable for pulling through standard cable ducting in a control panel. The screw-type terminals accept the 0.5 mm² cores directly — no ferrule required, though a ferrule is fine if your panel standard calls for it.