Siemens 6ES7138-4FR00-0AA0 Electronics Module

Siemens 6ES7138-4FR00-0AA0 Electronics Module with 6ES7193-4CF40-0AA0 Base is a fail‑safe DP electronics module for the ET 200S distributed I/O system, delivering a single fail-safe relay output (1F-RO) rated up to 5 A. The module supports a supply from 24 V DC or 24–230 V AC and consumes about 2.1 W, with a 30 mm width that fits the ET 200S base 6ES7193-4CF40-0AA0 for a compact, integrated 1‑channel output assembly in automation installations. It is designed to switch safety‑related loads such as actuators or signaling devices within PROFIBUS DP/ET200S networks, making it suitable for safety‑critical control loops where reliable relay signaling is required. As part of Siemens’ SIMATIC DP family, this electronics module adheres to the ET 200S safety module concept and carries the F‑RO designation for fail‑safe relay output functionality.