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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RW4024-1TB05 |
| Alternative Part Number | 3RW40241TB05 |
| Manufacturer | Siemens |
| Category | Soft Starts |
| Operating Current | 12.5 A at 40 °C |
| Power Rating | 7.5 kW at 500 V |
| Operating Voltage Range | 400 - 600 V AC |
| Control Supply Voltage | 24 V AC/DC |
| Frequency | 50 - 60 Hz |
| Width | 57 mm |
| Height | 156 mm |
| Depth | 181 mm |
| Weight | 0.730 kg |
| Mounting Type | Screw and snap-on mounting |
| Mounting Position | Vertical +/- 90° rotatable, +/- 22.5° tiltable with fan; Vertical +/- 10° rotatable without fan |
| Ambient Operating Temperature | -25 to +60 °C |
| Storage Temperature | -40 to +80 °C |
| Protection Class | IP20 |
| Motor Protection | Thermistor motor protection |
| Mechanical Design | Size S0 |
| Number of Poles | 3 for main current circuit |
| Electrical Connection | Screw-type terminals for main, auxiliary, and control current circuit |
| Auxiliary Contacts | 2 NO, 1 change-over switch |
| Conductor Cross-Section | Various configurations for solid and finely stranded wires |
| Approvals | General Product Approval, EMC, UL/CSA ratings |
| Commodity Code | 853710 |
The Siemens 3RW4024-1TB05 is a state-of-the-art soft starter designed for seamless integration into various industrial motor control applications. This compact device is part of the SIRIUS range and is engineered to provide efficient starting and stopping of motors, ensuring a reduction in mechanical stress on the motor itself and the drive system. With a current rating of 12.5A and the capability to manage motors up to 7.5 kW at 500V in a 40°C environment, it is a versatile solution for a wide array of applications.
The soft starter operates within a voltage range of 400-600V AC and is equipped with AC/DC 24V control voltage, making it suitable for international use. It features screw terminals for secure and reliable connections, and it includes thermistor motor protection to safeguard against overheating. The intrinsic device protection and motor overload protection functions ensure long-term reliability and performance.
Designed with a width of 57mm, a height of 156mm, and a depth of 181mm, the 3RW4024-1TB05 is compact enough to fit in tight spaces while offering the robust functionality expected from a Siemens product. Its ambient operating temperature range of -25 to +60°C allows for operation in a variety of environmental conditions.
The soft starter's integrated bridging contact system and thyristors provide smooth ramp-up and ramp-down of motor speed, which helps to reduce electrical peaks and mechanical wear. This can lead to increased lifespan of equipment and reduced maintenance costs. The adjustable current limitation feature allows for precise control of motor start-up, further enhancing the flexibility of this device.
The 3RW4024-1TB05 is a smart choice for those looking to improve the efficiency and longevity of their motor-driven systems. Whether used in conveyor systems, pumps, fans, or compressors, this soft starter combines performance with reliability, making it a valuable component in any industrial setting.
Commonly Asked Questions
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Frequently Asked Questions
What is the purpose of a soft starter like the SIRIUS soft starter S0?
The SIRIUS soft starter S0 is designed to control the acceleration and deceleration of three-phase motors. It helps to reduce mechanical stress on the motor and the power system, minimising the electrical surges associated with the start-up of a motor.
Can this soft starter be used with different voltage systems?
Yes, the soft starter is suitable for operating voltages ranging from 400 to 600V AC, making it versatile for use in various electrical settings.
Is motor overload protection included in this soft starter?
Yes, the soft starter includes motor overload protection, which helps to prevent damage to the motor due to excessive current or overheating.
What are the ambient operating temperature limits for this soft starter?
The soft starter can operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance in a wide range of environmental conditions.
What type of terminals does this soft starter have for electrical connections?
It is equipped with screw terminals for both the main current circuit and the auxiliary and control current circuit, facilitating secure and reliable connections.
How does the thermistor motor protection function work?
The thermistor motor protection function evaluates the temperature of the motor's thermal resistor, providing protection against overheating by monitoring the motor's temperature in real-time.
What is the rated operating frequency for this soft starter?
The rated operating frequency for the soft starter is 50 to 60 Hz, accommodating standard power supply frequencies in various regions.
What is the significance of the adjustable current limitation feature?
The adjustable current limitation feature allows users to set a maximum current threshold to prevent excessive current draw during motor start-up, which can help to reduce mechanical and electrical stress.
Can this soft starter be used for three-phase servomotors?
Yes, the soft starter is capable of emitting mechanical power for three-phase servomotors, with rated values provided for different voltages in the datasheet.
What is the protection class of this soft starter?
The soft starter has a protection class of IP20, indicating a basic level of protection against solid objects.
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