This is a Siemens front connector with 20 single cores, order code 6ES7922-5BD20-0AB0, designed for the SIMATIC S7-1500 system. It mates to the 40-pole front connector receptacle (6ES7592-1AM00-0XB0) on S7-1500 digital I/O modules, carrying signals from the module to the field wiring via a 3.2 m cable bundle. The cable is H05V-K, 0.5 mm² per core, with a blue PVC sheath (RAL 5010). Cores are numbered consecutively 1 through 20, matching the white adapter contact numbers. The screw-type terminal on the enclosure side accepts the field wiring, so this is a pre-wired harness that saves panel-build time — no need to terminate individual wires into the module connector.
Voltage ratings and signal suitability
Rated at 24 V with a maximum of 30 V, this connector is built for the 24 VDC control voltage typical of S7-1500 digital I/O. The 30 V ceiling means it handles the 24 V nominal plus any ripple or transient within the standard industrial tolerance — no headroom issue for a 24 VDC bus. It is explicitly suited for digital signal transmission, not analog, so use it with digital input or output modules only.
Environmental limits
The cable sheath is PVC, rated H05V-K, which is standard for fixed installation in dry enclosures — not for continuous flexing or outdoor exposure.