AS-Interface Front Panel Module with 4 Illuminated Pushbuttons
The Siemens 3SF5874-4EL is an AS-Interface front panel module designed for control stations requiring local operator input and indication. It integrates one AS-i slave with 4 inputs and 4 outputs (4I/4O), driven by 4 illuminated pushbutton actuators. The housing is rectangular, plastic, rated IP65 for washdown environments, and mounts via a 22 mm round opening. Each of the 4 command points carries a wedge-base lamp holder, and the front ring is metal (silver) while the actuator is white plastic. The enclosure top part and label are black.
Integration & Panel Fit
The module measures 54.5 mm deep, 45 mm wide, and 200 mm tall. It fastens vertically or horizontally through a single 22 mm round cutout. No positive opening or emergency stop function is built in — this is a signaling and indication station, not a safety-rated stop device.