Timing Relay 3RP1574-1NQ30 Siemens

Description

The Siemens SIRIUS Timing Relay 3RP1574-1NQ30 is a highly reliable electronic relay designed for efficient control of star-delta (wye-delta) motor switching. Although it is a phased-out product, it remains an excellent solution for applications requiring precise timing control, offering versatility and robust performance.

This timing relay features two contacts: one normally open (NO) contact with a delayed switching function and one NO instantaneous contact, providing flexible and efficient operation. Its adjustable time range, from 1 to 20 seconds, allows for fine-tuned control to meet specific system requirements.

The relay operates at 24 V AC/DC and 100-127 V AC with a frequency of 50/60 Hz, ensuring compatibility with a broad range of electrical systems. With a 300 V insulation voltage and a surge voltage resistance of 4000 V, it offers strong protection and reliability.