Siemens 6ES7922-3BD20-0AF0 SIMATIC TOP Connect Front Connector 20-Pole Crimp 3.2 m PLC Connection Module

The Siemens 6ES7922-3BD20-0AF0 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 3.2 m length, crimp 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 single unit.

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 3.2 m, it reaches a control cabinet's terminal strip from a 20-pole S7-300 digital I/O module without an intermediate junction. The crimp version uses a factory crimp connection instead of screw terminals, which removes the periodic screw re-torque check from the maintenance routine but requires crimp tooling if a core is re-worked. The H05V-K core insulation fits IEC-style panel wiring practice. Supplied as a single unit, it suits single-module replacement or a small expansion.