3RP2574-1NW30

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.

• Control of star-delta (wye-delta) motor starters for reducing the initial voltage and current surge when starting large motors
• Timing functions in conveyor systems to manage the sequence of operations and material handling processes
• Automation of pumps in water treatment plants to control the timing of various stages of treatment and chemical dosing
• Use in packaging machinery for precise timing control during filling, sealing, and labeling processes
• Integration into HVAC systems for timed control of heating, ventilation, and air conditioning cycles
• Timing control in food processing equipment to ensure precise cooking, cooling, or freezing times
• Implementation in lighting systems for programmed control of lights in commercial buildings or outdoor areas
• Use in manufacturing processes for timed control of assembly line equipment and machinery
• Automation of agricultural machinery and irrigation systems to provide timed operations for planting, watering, and harvesting
• Timing relays in control panels for various industrial applications requiring precise delay functions