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Specification & Description
The Siemens 3RP2574-1NW30 is a versatile timing relay designed for a wide range of industrial applications. This electronic component is engineered to facilitate star-delta (wye-delta) switching, which is essential for controlling the operation of motors by reducing the initial surge of current. With a single normally open (NO) delayed contact and one NO instantaneous contact, it offers flexibility in circuit design and functionality.
The timing relay operates within a time range of 1 to 20 seconds and is compatible with a control supply voltage of 12 to 240 V AC/DC at 50/60 Hz, making it suitable for various electrical standards. The device is designed for easy installation, with screw and snap-on mounting options onto a 35 mm standard mounting rail, and it boasts a compact form factor with dimensions of 22.5 mm in width, 100 mm in height, and 90 mm in depth.
With a mechanical service life of typically 10 million switching cycles and an electrical endurance of 100,000 cycles at AC-15 at 230 V, the Siemens 3RP2574-1NW30 is built for reliability and longevity. Its thermal current rating is 5 A, and it features a recovery time of 250 ms, ensuring prompt response in various operational conditions.
The timing relay is designed with user safety in mind, offering finger-safe protection and basic insulation to prevent electrical shock. It also meets EMC requirements, ensuring minimal electromagnetic interference in sensitive environments.
Ideal for a range of industrial timing tasks, the Siemens 3RP2574-1NW30 is a robust and reliable choice for those seeking efficient and precise control in their electrical systems.
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Frequently Asked Questions
What is the voltage range for this timing relay?
The timing relay operates within a control supply voltage range of 12 to 240 V AC/DC at 50/60 Hz.
Can this timing relay be mounted on a DIN rail?
Yes, it is designed for screw and snap-on mounting onto a 35 mm standard mounting rail.
What are the dimensions of this timing relay?
The dimensions are 22.5 mm in width, 100 mm in height, and 90 mm in depth.
What is the timing range that can be set on this relay?
The adjustable timing range for this relay is from 1 to 20 seconds.
What is the maximum operating altitude for this relay?
The relay can be operated at a maximum altitude of 2000 metres above sea level.
What type of contacts does this relay have?
It has one normally open (NO) contact for delayed switching and one NO instantaneous contact.
What is the thermal current rating for this relay?
The thermal current rating for this relay is 5 A.
What is the IP protection class of this timing relay?
The protection class for this relay is IP20.
What is the mechanical service life of this relay?
The mechanical service life of the relay is typically 10 million switching cycles.
What are the ambient temperature limits for operating this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius.
