Siemens 6ES7922-5BC50-0AC0 SIMATIC TOP Connect Front Connector 40-Pole H05V-K 0.5mm² 2.5m Screw PLC Connection Module

The Siemens 6ES7922-5BC50-0AC0 is a pre-assembled 40-pole front connector for SIMATIC S7-1500 digital I/O modules, supplied as part of the SIMATIC TOP Connect flexible cabling system. It terminates 40 individually numbered H05V-K single cores (0.5 mm² conductor cross-section) via screw-type terminals, with a cable length of 2.5 m and a rated operating voltage of 24 V DC (max 30 V DC).

Technical Specifications

Selection Notes

The 6ES7922-5BC50-0AC0 is the 2.5 m variant of the 40-pole screw-type TOP Connect front connector family. The 2.5 m cable reach suits control cabinet layouts where the S7-1500 rack is located centrally and field terminals or marshalling rails sit at a moderate distance — typically one to two panel sections away. The 1.5 A maximum continuous current per core limits use to signal-level and low-power actuator connections (24 V DC digital I/O), which is exactly the rated scope for the 40-pole 6ES7592-1AM00-0XB0 front connector it replaces. Compared to the shorter cable variants, the 2.5 m length eliminates the need for intermediate junction terminals in deeper cabinets, keeping the numbered core-to-channel correspondence (core 1 = channel 1, …, core 40 = channel 40) unbroken from module to termination. If cabinet depth or routing constraints demand a shorter run, evaluate the 1.5 m variant; for standard 19-inch enclosures with close terminal placement, the shorter length avoids excess cable bundling.

Applications

This front connector plugs directly onto the 40-pole SIMATIC S7-1500 digital I/O module in place of the standard front connector, converting the module interface into 40 individually labeled, free-ended single cores. The numbered H05V-K wires route to field terminal blocks, marshalling rails, or I/O junction boxes without additional intermediate wiring. The screw termination on the connector body accommodates field modifications without specialist tooling. Typical deployments include machine control panels and process automation cabinets where digital I/O channel counts justify pre-assembled harness cabling over point-to-point wiring.