Module overview and fit
The Siemens 6ES7131-4BF00-4AA0 is a SIMATIC DP ET200S electronic module providing 8 digital inputs rated for 24 V DC. Each input draws a typical 5 mA at signal "1". The module is 15 mm wide, 81 mm tall, and 52 mm deep — a slim footprint that fits tightly on a DIN rail in a dense I/O cabinet.
Panel fit and wiring note
At 15 mm wide, the module occupies one slot on the ET200S terminal block. Spring-cage terminals accept 0.2–2.5 mm² conductors; strip length 8 mm.
