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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RP1576-1NP30 |
| Alternative Part Number | 3RP15761NP30 |
| Manufacturer | Siemens |
| Timing Relay Type | Electronic with star-delta (wye-delta) function |
| Contact Configuration | 1 NO contact, delayed; 1 NO contact, instantaneous |
| Time Range | 3 to 60 seconds |
| Supply Voltage | 24 V ac/dc, 200 to 240 V ac at 50/60 Hz |
| Terminal Type | Screw Terminal |
| Mounting | Screw and snap-on mounting onto 35 mm standard mounting rail |
| Operating Temperature Range | -25 to +60 °C during operation |
| Storage Temperature Range | -40 to +85 °C |
| Relative Humidity | 10 to 95% during operation |
| Insulation Voltage | 300 V for overvoltage category III according to IEC 60664 |
| Surge Voltage Resistance | Rated value 4,000 V |
| Shock Resistance | 11g / 15 ms according to IEC 60068-2-27 |
| Vibration Resistance | 10 to 55 Hz / 0.35 mm according to IEC 60068-2-6 |
| Mechanical Service Life | Typical 10,000,000 switching cycles |
| Electrical Endurance | 100,000 switching cycles at AC-15 at 230 V |
| Protection Class | IP20 |
| Material of Switching Contacts | AgSnO2 |
| Tightening Torque | 0.8 to 1.2 N·m |
| Installation Altitude | Maximum 2,000 m above sea level |
| Product Approvals | CE, UL, CSA |
| Conductor Cross-Section | Solid: 0.5 to 4 mm²; Finely stranded with core end processing: 0.5 to 2.5 mm² |
| AWG Number | Solid/Stranded: 20 to 14 |
The Siemens 3RP1576-1NP30 is a sophisticated timing relay designed for a variety of industrial applications. This electronic component is a phased-out product, which means it holds significant value for maintenance or replacement in existing systems where continuity is essential. It features a star-delta (wye-delta) function, which is crucial for applications requiring the reduction of the initial voltage during motor start-up, thereby minimising mechanical stress and current spikes.
This timing relay comes with a single changeover contact that is delayed, and an additional instantaneous contact, providing flexibility in control circuit design. It offers a time range of 3 to 60 seconds, which can be precisely set to meet the specific timing requirements of your application. The control supply voltage is versatile, accepting 24 V AC/DC and 200 to 240 V AC at 50/60 Hz, making it suitable for a wide range of operating environments.
The 3RP1576-1NP30 is designed with user convenience in mind, featuring screw terminals for secure and reliable connections. Its compact dimensions allow for efficient use of space within control panels, and it can be mounted easily with screw or snap-on mounting onto a 35 mm standard mounting rail. With an insulation voltage rated at 300 V and a surge voltage resistance of 4,000 V, this timing relay is built to withstand challenging industrial conditions.
The relay's robust construction ensures a mechanical service life of typically 10 million switching cycles and an electrical endurance of 100,000 cycles at AC-15 at 230 V, highlighting its durability and reliability. Additionally, the relay is designed to operate within a temperature range of -25 to +60 degrees Celsius, ensuring performance stability in varying climates.
Overall, the Siemens 3RP1576-1NP30 timing relay is an essential component for industrial automation systems requiring precise timing control, particularly in scenarios where star-delta starting is necessary. Its robust design and flexible features make it a valuable asset for maintaining the efficiency and reliability of your machinery and processes.
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Frequently Asked Questions
What type of device is this?
This is an electronic timing relay used for various timing functions in industrial automation systems, including star-delta (wye-delta) starting for motors.
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 voltage specifications for this timing relay?
The timing relay operates at 24 V AC/DC and can also handle 200 to 240 V AC at 50/60 Hz.
What is the time range that can be set on this relay?
The adjustable time range for this relay is from 3 to 60 seconds.
What type of terminals does this timing relay have?
It comes with screw-type terminals for secure and reliable connections.
What is the protection class of this timing relay?
The timing relay has a protection class of IP20.
What is the ambient temperature range in which this relay can operate?
The relay is designed to operate within an ambient temperature range of -25 to +60 degrees Celsius.
What is the mechanical service life of this timing relay?
The mechanical service life of the relay is typically around 10 million switching cycles.
Does this timing relay have a solid-state output?
No, this timing relay does not have a solid-state output; it features relay outputs.
What certifications does this timing relay hold?
The timing relay has general product approvals and conforms to EMC standards, as indicated by its Declaration of Conformity.
