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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RW3024-1AB04 |
| Manufacturer | Siemens |
| Product Type | Soft Starter |
| Phase Compatibility | 3 Phase |
| Power Rating | 5.5 kW at 400 V |
| Operating Voltage | 200 to 460 V ac |
| Control Supply Voltage | UC 24 V |
| Operating Current | 12.5 A at 40 °C |
| Dimensions | 125 x 45 x 124 mm |
| Mounting Type | Screw and snap-on mounting |
| Number of Poles | 3 for main current circuit |
| Electrical Connection | Screw-type terminals for main and auxiliary/control current circuits |
| Auxiliary Contacts | 2 NO contacts |
| Ambient Operating Temperature | -25 to 60 °C during operation, -40 to 80 °C during storage |
| Frequency | 50 to 60 Hz |
| Protection Class | IP20 |
| Product Designation | Soft starters for standard applications |
| Fixing Orientation | With vertical mounting surface +/-10° rotatable, with vertical mounting surface +/- 10° tiltable |
| Cable Length Maximum | 100 m |
| Conductor Cross Section | Various types including solid and finely stranded with specifications for main and auxiliary contacts |
| Derating Temperature | 40 °C |
The Siemens 3RW3024-1AB04 is a compact and efficient soft starter designed for seamless integration into various industrial motor applications. This device is engineered to provide a controlled ramp-up and slow-down of three-phase motors, which helps in reducing mechanical stress on the motor and the electrical network. With a power rating of 5.5 kW at 400 V and an operating voltage range of 200 to 460 V ac, it is suitable for a wide array of applications.
The soft starter's size S0 footprint, with dimensions of 125 x 45 x 124 mm, ensures it can be accommodated in tight spaces, making it an ideal choice for installations where space is at a premium. The unit is equipped with a 24 V control voltage and features integrated bridging contact systems and thyristors for reliable performance.
Designed for standard applications, the 3RW3024-1AB04 has an operating current of 12.5 A at 40 °C, which slightly decreases with the rise in temperature, ensuring the device operates within safe limits. The soft starter also supports a wide operating frequency range of 50 to 60 Hz, making it versatile for global applications.
The electrical connections are designed with screw-type terminals for both the main current circuit and auxiliary and control current circuits, facilitating easy installation and maintenance. The device is also equipped with two normally open contacts for auxiliary control.
In terms of environmental adaptability, the soft starter can operate within an ambient temperature range of -25 to 60 °C and can be stored in temperatures ranging from -40 to 80 °C, ensuring robust performance in various climates.
The Siemens 3RW3024-1AB04 soft starter is a reliable and practical solution for motor control, offering smooth start and stop functionality to extend the lifespan of motors and reduce the likelihood of sudden mechanical shocks in industrial settings.
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Frequently Asked Questions
What is the purpose of a soft starter?
A soft starter is designed to reduce the inrush current and torque of electric motors during start-up. This helps in minimising mechanical stress on the motor and the power system, leading to extended motor life and reduced maintenance.
Can this soft starter be used for three-phase motors?
Yes, the Siemens soft starter is suitable for three-phase motors, providing smooth ramp-up and ramp-down control to protect the motor and connected equipment.
What is the power capacity of this soft starter?
The soft starter is capable of handling motors with a power capacity of up to 5.5 kW at 400 V in a three-phase configuration.
What voltage range does the soft starter support?
The soft starter supports an operating voltage range of 200 to 460 V ac, making it versatile for use in various electrical setups.
What is the current rating for this soft starter?
The current rating for this soft starter is 12.5 A, which is suitable for a range of industrial motor applications.
What are the dimensions of the soft starter?
The dimensions of the soft starter are 125 x 45 x 124 mm, making it compact and suitable for installation in tight spaces.
Does the soft starter have integrated bypass contacts?
Yes, the soft starter comes with integrated bridging contact system, which helps to reduce power loss and heat generation once the motor reaches full speed.
Is there a need for external motor protection with this soft starter?
While the soft starter does not have intrinsic device protection or motor overload protection, it is recommended to use external motor protection to safeguard against potential overloads.
What is the ambient temperature range for operating this soft starter?
The soft starter can operate within an ambient temperature range of -25 to 60 degrees Celsius, ensuring reliable performance in various environmental conditions.
What is the protection class of the soft starter?
The soft starter is rated at IP20, providing protection against solid objects larger than 12.5 mm but not against water.
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