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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RP1574-1NQ30 |
| Alternative Part Number | 3RP15741NQ30 |
| Manufacturer | Siemens |
| Product Type | Timer Relay |
| Contact Configuration | 1 Normally Open (NO) |
| Time Range | 1 to 20 seconds |
| Control Supply Voltage | 100 to 127 V ac; 24 V ac/dc |
| Operating Current | 3 A at AC-15, 24 to 250 V; 1 A at DC-13, 24 V; 0.2 A at 125 V; 0.1 A at 250 V |
| Mounting Type | Screw Mount; Snap-On Mount |
| Terminal Type | Screw-type terminals |
| Contact Material | Silver Tin Oxide (AgSnO2) |
| Dimensions | 22.5 x 91 x 83 mm |
| Frequency | 50 to 60 Hz |
| Insulation Voltage | Rated at 300 V |
| Impulse Voltage Resistance | Rated at 4,000 V |
| Ambient Operating Temperature | -25 to +60 °C |
| Relative Humidity | 10 to 95% during operation |
| Installation Altitude | Maximum 2,000 m above sea level |
| Protection Class | IP20 for terminals, IP40 on the front |
| Mechanical Service Life | Typically 10,000,000 switching cycles |
| Electrical Endurance | Typically 100,000 switching cycles at AC-15, 230 V |
| Commodity Code | 853649 |
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.
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Frequently Asked Questions
What type of device is this and what is its primary function?
This device is a timer relay primarily used for controlling operations in a time-delayed manner. It's designed to facilitate star-delta starting of motors, which helps in reducing the inrush current during motor start-up.
Can this timer relay be mounted in any position?
Yes, the timer relay can be mounted in any position, offering flexibility during installation.
What are the voltage requirements for this timer relay?
The timer relay operates on a control supply voltage of 24 V AC/DC or 100 to 127 V AC at 50/60 Hz.
What is the time range that can be set on this timer relay?
The adjustable time range for this timer relay is from 1 to 20 seconds.
What type of terminals does this timer relay have for electrical connections?
This timer relay is equipped with screw-type terminals for secure and reliable electrical connections.
What is the maximum operating current for the auxiliary contacts of this timer relay?
The operating current for the auxiliary contacts at AC-15 is 3 A for both 24 V and 250 V.
What is the protection class of this timer relay?
The protection class of the terminal is IP20, indicating a basic level of protection against solid objects.
What is the maximum installation altitude for this timer relay?
The maximum installation altitude for the timer relay is 2,000 metres above sea level.
What are the dimensions of this timer relay?
The dimensions of the timer relay are 22.5 mm in width, 91 mm in depth, and 83 mm in height.
Does this timer relay have any certifications or approvals?
Yes, the timer relay has general product approvals and may come with declarations of conformity and test certificates, depending on the specific requirements.
Part conditions explained
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Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
