Siemens 6ES7922-3BC50-5AB0 SIMATIC TOP Connect Front Connector 20-Pole Screw-type 2.5 m PLC Connection Module

The Siemens 6ES7922-3BC50-5AB0 is a pre-assembled SIMATIC TOP connect front connector for the SIMATIC S7-300, wired with 20 H05V-K single cores of 0.5 mm² cross-section at 2.5 m length, screw-terminal version. It plugs onto a 20-pole S7-300 digital I/O module in place of the bare front connector, rated 24 V DC (30 V DC max, 1.5 A per core), and ships as a pack of 5 units.

Technical Specifications

Selection Notes

Choose the 20-pole version to match the digital I/O module's channel count; the 20-core assembly cannot be trimmed down or extended to a different pole count. At 2.5 m, it reaches a control cabinet's terminal strip from a 20-pole S7-300 digital I/O module without an intermediate junction. The screw-type terminal lets individual cores be re-terminated on site without special crimp tooling. The H05V-K core insulation fits IEC-style panel wiring practice. Supplied as a pack of 5 units, it suits multi-rack retrofits where several identical I/O modules need rewiring in one order.