The Siemens 3RP1540-1BW31 is a SIRIUS-brand time relay with a relay output and an adjustable time range of 0.05 to 600 s. The relay contacts are rated 1 A at 24 V DC, 0.2 A at 125 V DC, and 0.1 A at 250 V DC; the thermal current (Ith) is 5 A. That means for DC switching you are limited to low-current signal or small solenoid loads — not motor contactor coils above 1 A at 24 V.
Width is 22.5 mm — one standard modular unit — and depth is 91 mm. The 0.8 to 1.2 N·m tightening torque on the terminals is typical for spring-cage or screw terminals in this class.