The Siemens 3RP1560-1SQ30 is a SIRIUS-brand time relay built for control-panel timing jobs where you need a simple, adjustable delay and a relay output. The adjustable time range of 1 to 20 seconds covers the common intervals for star-delta transitions, conveyor sequencing, or pump alternation. Recovery time sits at 300 ms, meaning the relay resets fast enough for repetitive cycles — no long wait between operations. Coil voltage is 100 to 127 V AC at both 50 and 60 Hz, so it runs off standard North American control transformers or European 110 VAC circuits without a separate power supply. The relay output is rated 1 A at 24 V, 0.2 A at 125 V, and 0.1 A at 250 V — enough for pilot duty or small contactor coils, not a main power load. Thermal current (Ith) is 5 A, which gives you headroom on the contacts for inrush if you're switching a small solenoid or indicator lamp. Just keep the switched load within the voltage-specific ratings above for reliable long-term service.
That covers unheated plant floors and warehouse storage without issue. Dimensions are 22.5 mm wide, 102 mm tall, and 91 mm deep — a standard single-module width that fits alongside breakers and contactors in a typical DIN-rail layout. Tightening torque for the screw terminals is 0.8 to 1.2 N·m, so a standard screwdriver with a modest turn gets it done.