The Siemens 3RP1574-1NQ30 is a versatile timer relay designed to meet a variety of timing control needs in industrial applications. This electronic timing relay is part of the esteemed SIRIUS product line, known for its reliability and efficiency in automation tasks.
With a single time range of 1 to 20 seconds, this timer relay is suitable for operations requiring precise time delays. It is equipped with a star-delta function, making it ideal for applications that need to reduce the initial voltage during motor start-ups, thereby minimising mechanical stress and current peaks.
The 3RP1574-1NQ30 operates with a control supply voltage of 24 V AC/DC and 100 to 127 V AC at 50/60 Hz, providing flexibility for use in various power supply environments. The timer relay features a robust design with a protection class of IP20 for the terminal, ensuring safe operation in industrial settings.
This model comes with screw-type terminals for secure and reliable electrical connections, and it can be mounted using screws or snapped onto a 35 mm standard mounting rail, offering ease of installation. The compact dimensions of 22.5 x 91 x 83 mm allow for efficient use of space inside control cabinets.
The timer relay is constructed with a single normally open (NO) contact that is delayed, ensuring that connected devices are activated only after the set time has elapsed. The relay's contacts are made of AgSnO2, which provides excellent conductivity and durability for extended use.
Designed to withstand challenging industrial environments, the Siemens 3RP1574-1NQ30 can operate at installation altitudes of up to 2000 metres above sea level and within an ambient temperature range of -25 to +60 degrees Celsius during operation. It also boasts resistance to vibration, electrical interference, and electrostatic discharge, ensuring consistent performance even in the presence of potential disturbances.
Overall, the Siemens 3RP1574-1NQ30 timer relay is a reliable and efficient solution for time-controlled operations in industrial automation systems. Its robust construction, flexible power supply compatibility, and precise timing capabilities make it a valuable component for a wide range of applications.