Siemens SIRIUS 3RP2540-1AW30 is a compact, electronic OFF-delay timer relay with a single SPDT (change-over) output and screw-terminal connections. It operates from a supply of 12–240 V AC/DC, offers seven time ranges from 0.05 to 600 seconds, and features a SPDT contact rated up to 3 A at 250 VAC (50/60 Hz). A status LED indicates the relay state and the device carries an IP20 rating for use in control panels. Common applications include time-delayed switching in machine control, start-up sequencing, and protection/regulation circuits in automation systems.
