The Siemens 3RW5525-1HA04 is a high-performance SIRIUS 3RW55 Soft Starter designed for the smooth starting and stopping of three-phase induction motors. It minimizes mechanical stress, reduces inrush current, and protects electrical systems from voltage fluctuations during motor startup. Equipped with integrated motor protection, intelligent monitoring functions, and an internal bypass system, this soft starter offers enhanced energy efficiency, reduced heat dissipation, and reliable motor control for industrial applications. It is ideal for pumps, compressors, fans, conveyors, and other motor-driven systems used in industrial and infrastructure projects.
• Siemens SIRIUS 3RW55 Series Soft Starter
• Part Number: 3RW5525-1HA04
• Rated operational voltage: 200–480V AC
• Rated operational current: 63A
• Control supply voltage: 24V AC/DC
• Suitable for three-phase asynchronous motors
• Integrated bypass contact system for reduced power loss
• Adjustable current limiting function
• Soft start and soft stop functionality
• Pump control and torque control features
• Built-in motor overload protection
• Intelligent monitoring and diagnostic functions
• Compact and space-saving design
• Reduced mechanical stress on motors and drive systems
• Minimizes voltage dips during motor startup
• Supports communication and HMI expansion modules
• Screw-type terminal connections
• High operational reliability and energy efficiency
• IEC 60947-4-2 compliant
• Suitable for pumps, fans, compressors, conveyors, and process industries
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RW55 |
| Part Number | 3RW5525-1HA04 |
| Product Type | Soft Starter |
| Rated Operational Voltage (Ue) | 200–480V AC |
| Rated Current | 63A |
| Control Supply Voltage (Us) | 24V AC/DC |
| Number of Phases | 3 Phase |
| Motor Power Rating | Up to 18.5 kW |
| Mounting Type | Panel Mount |
| Connection Type | Screw Terminals |
| Overload Protection | Integrated |
| Soft Start Function | Yes |
| Soft Stop Function | Yes |
| Current Limiting | Adjustable |
| Integrated Bypass | Yes |
| Pump Control | Yes |
| Torque Control | Yes |
| Communication Expansion | Supported |
| Protection Class | IP00 |
| Frequency | 50/60 Hz |
| Standard Compliance | IEC 60947-4-2 |
| Application | Pumps, Fans, Compressors, Conveyors, Industrial Motors |
No reviews yet.