The Siemens 6ES7924-0CL20-0BC0 is a connection module for SIMATIC S7-300 and S7-1500 systems, designed to interface digital I/O modules with field wiring. It carries 28 push-in terminals — 8 for I/O signals and 10 each for L+ and M — rated at 1 A per terminal with a total current capacity of 4 A. The module snaps onto 35 mm or 15 mm DIN rail and accepts stranded wire from 0.2 to 2.5 mm².
Mounts on 35 mm or 15 mm DIN rail in any position. The push-in terminals accept one or two wires per connection — combine cross sections up to the ferrule limit. An integrated infeed function lets you daisy-chain supply voltage across multiple modules without external jumpers, saving panel space. No end cover plate is required.