The 2900329 is a PLC-INTERFACE relay module consisting of a PLC-BPT basic terminal block with push-in connections and a plug-in miniature power relay. It operates with a nominal input voltage of 12 V DC and provides two PDT (Double Pole Double Throw) contacts made from AgNi material. Key electrical characteristics include a maximum switching voltage of 250 V AC/DC, a limiting continuous current of 6 A, and a typical response time of 8 ms. The module incorporates an integrated input circuit with reverse polarity protection and a free-wheeling diode, with a yellow LED for operating voltage display. Designed for mounting on an NS 35/7.5 DIN rail, its slim 14 mm profile makes it a space-saving solution for industrial automation and control systems.