3RW4435-6BC44

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The Siemens 3RW4435-6BC44 is a robust and efficient soft starter designed for three-phase motors, offering a seamless solution for motor control in industrial applications. This device is part of the SIRIUS range, known for its reliability and advanced features. It supports a power range of up to 132 kW at 400 V and operates efficiently within a voltage range of 200 to 460 V AC. The soft starter is equipped with an integrated bypass contact system and thyristors, ensuring smooth motor start-up and reducing mechanical stress on the motor and connected equipment.

With a rated operational current of 134 A at 40 °C, the 3RW4435-6BC44 provides intrinsic device protection, motor overload protection, and the evaluation of thermistor motor protection. It also features an adjustable current limitation and supports inside-delta circuit configurations, enhancing its versatility in various applications. The device is designed for easy installation with screw-type terminals and busbar connections, and it includes a motor brake output for added functionality.

The Siemens 3RW4435-6BC44 is engineered to meet the demands of high-performance applications, offering a reliable and efficient solution for controlling motor operations while minimising energy consumption and wear. Its compact dimensions of 200 x 170 x 270 mm make it suitable for integration into existing systems, providing a space-saving option for modern industrial environments.
Specification Description
Part Number 3RW4435-6BC44
Manufacturer Siemens
Product Type Soft Starter
Phase 3 Phase
Power Rating 132 kW
Voltage Range 200 to 460 V AC / 230 V AC
Current Rating 134 A
Dimensions 200 x 170 x 270 mm
Product Family SIRIUS
Operating Temperature 40 °C
Motor Protection Integrated motor overload protection and thermal resistor motor protection
Circuit Type Inside-delta circuit available
Control Voltage 230 V AC at 50/60 Hz
Mounting Type Screw fixing, with vertical mounting surface +/-90° rotatable, +/- 22.5° tiltable
Auxiliary Contacts 3 NO contacts, 1 CO contact
Connection Type Busbar connection for main circuit, screw-type terminals for auxiliary and control circuits
Mechanical Power Up to 150 hp for three-phase motors at 460/480 V in inside-delta circuit
Application Designed for high-feature applications requiring smooth motor start-up and protection, suitable for various industrial environments and motor control systems.

What is the power rating of this soft starter?

The Siemens soft starter has a power rating of 132 kW for three-phase motors at 400 V in an inside-delta circuit.

What are the dimensions of the Siemens soft starter?

The dimensions of the Siemens soft starter are 200 mm in height, 170 mm in width, and 270 mm in depth.

What is the operational current capacity of this soft starter?

The operational current capacity is 134 A at 40 °C for standard circuits.

Can this soft starter be used with a 230 V AC supply?

Yes, the Siemens soft starter is compatible with a 230 V AC supply.

Does this soft starter include motor overload protection?

Yes, the Siemens soft starter includes motor overload protection as a standard feature.

What type of mounting does this soft starter require?

The Siemens soft starter requires screw fixing for mounting.

Is there an integrated bypass contact system in this soft starter?

Yes, the Siemens soft starter features an integrated bypass contact system.

What is the maximum installation altitude for this soft starter?

The maximum installation altitude for the Siemens soft starter is 5,000 meters above sea level.

What is the degree of protection provided by this soft starter?

The Siemens soft starter provides intrinsic device protection and motor overload protection.

What is the typical power loss during operation?

The typical power loss during operation at 40 °C is 76 W.

  • Motor control in industrial automation systems
  • Reducing mechanical stress on motor start-up
  • Enhancing energy efficiency in motor operations
  • Protecting motors from overload and overheating
  • Facilitating smooth start and stop of conveyor systems
  • Improving the lifespan of pumps and fans
  • Integrating into HVAC systems for controlled motor operation
  • Supporting soft start applications in material handling equipment
  • Implementing in water treatment facilities for pump control
  • Utilising in manufacturing processes for precise motor management

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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