Siemens 6ES7922-3BD20-0UC0 SIMATIC TOP Connect Front Connector 40-Pole Screw-type 3.2 m PLC Connection Module

The Siemens 6ES7922-3BD20-0UC0 is a pre-assembled SIMATIC TOP connect front connector for the SIMATIC S7-300, wired with 40 UL/CSA-rated single cores of 0.5 mm² cross-section at 3.2 m length, screw-terminal version. It plugs onto a 40-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 40-pole version to match the digital I/O module's channel count; the 40-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 40-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 UL/CSA-rated core insulation (AWM Style 1007/1569, FT2, TR64) fits panels built to North American wiring practice, versus the H05V-K version used in IEC-style panels. Supplied as a single unit, it suits single-module replacement or a small expansion.