The 2980021 is a PLC relay module consisting of a basic terminal block with screw connections and a pluggable miniature relay, designed for assembly on a NS 35/7.5 DIN rail. It operates with a nominal input voltage of 125 V DC and features a 1 PDT (Single Pole Double Throw) power contact made of AgSnO material. This compact module, with a width of just 6.2 mm, can handle a maximum switching voltage of 250 V AC/DC and a limiting continuous current of 6 A. Designed for industrial environments, it has an operational ambient temperature range of -25 °C to 60 °C, making it suitable for electrical isolation and load switching in automation and control systems.