Siemens SIRIUS 3RW Soft Starter, , 110 kW, 200 → 480 V ac, 3 Phase

This soft starter is a crucial component for industrial motors within the SIRIUS range, designed to provide optimal control over motor start-up. With a power rating of 110 kW and a current capacity of 171A, it operates efficiently across a voltage range of 200 to 480V AC. The device measures 180mm in length, 120mm in width, and 248.4mm in depth, crafted for seamless integration into industrial settings.

• Integrated bypass contact system enhances energy efficiency
• Adjustable current limitation optimises motor protection
• Electronic motor overload protection ensures safety during operation
• Supports various communication modules for system integration
• Defined ramp-up and ramp-down times improve mechanical lifespan
• CE certified, assuring compliance with international standards

• Utilised in motor control for conveyor systems
• Ideal for starting large fans in HVAC systems
• Suitable for pumps requiring controlled start-up and shut down
• Frequently employed in manufacturing assembly lines
• Effective for electric motor in automated processes

Users can adjust the starting and stopping voltage between 30% to 100%, with customisable ramp-up and ramp-down times of up to 20 seconds to suit specific application needs. Additionally, the adjustable current limiting feature enhances protection.

The built-in electronic motor overload protection continuously monitors the motor's status and provides instant tripping in case of thermal overload, safeguarding both the motor and connected systems.

Yes, it is designed for operation in temperatures ranging from -25°C to +60°C, ensuring reliable performance even in challenging conditions while adhering to specific derating practices above 40°C.