What this front connector is for
The Siemens 6ES7922-5BC50-0HB0 is a pre-wired front connector for SIMATIC S7-1500 digital I/O modules. It mates with the 40-pole module interface (order code 6ES7592-1AM00-0XB0) and brings out 20 individual signal cores, each numbered 1 through 20 at the adapter end, to screw terminals on the enclosure side. Rated at 24 V with a maximum of 30 V, it handles the signal-level wiring typical of 24 VDC digital inputs and outputs in an S7-1500 rack.
Cable and termination specs
Each core is 0.5 mm² H05Z-K — a halogen-free, polyolefin-insulated single conductor, blue sheath, with an outer diameter of 2.2 mm per bundled core. The screw-type terminal on the enclosure side accepts the field wiring; the connector side plugs into the module. Cable length is 2.5 m, enough to reach a typical DIN-rail terminal block in the same cabinet without excess slack.
Lifecycle and sourcing posture
Listed as active in production. No obsolescence concern for current BOM lines. For a line-down or new-build requirement, this part is specified into the S7-1500 I/O wiring plan and sourced to order against an RFQ.