The Siemens 3RW5536-6HA14 is a high-performance SIRIUS 3RW55 Soft Starter engineered for the smooth starting and stopping of three-phase induction motors. Designed to reduce mechanical stress, limit inrush current, and improve overall system reliability, this soft starter is ideal for demanding industrial applications. With a rated operational current of 171A and an operating voltage range of 200–480V AC, it delivers efficient motor control for pumps, compressors, conveyors, fans, crushers, and process equipment. The integrated bypass technology minimizes power losses while the advanced motor protection and monitoring functions ensure maximum operational safety and equipment longevity.
• Siemens SIRIUS 3RW55 Soft Starter
• Part Number: 3RW5536-6HA14
• Rated operational current: 171A
• Operating voltage: 200–480V AC
• Control supply voltage: 110–250V AC
• Advanced digital soft starting and soft stopping functions
• Integrated bypass for reduced heat dissipation and energy losses
• Built-in motor overload protection
• Current limiting and torque control functions
• Pump control and pump stop functionality
• Integrated motor monitoring and diagnostics
• LCD/HMI interface compatibility for parameterization and monitoring
• Communication module support for PROFINET, PROFIBUS, Modbus TCP, Modbus RTU, and EtherNet/IP
• Compact and space-saving design
• Suitable for normal and heavy-duty motor starting applications
• Reduced mechanical wear on motors and driven equipment
• Enhanced system reliability and extended motor life
• Complies with IEC 60947-4-2 standards
• Ideal for pumps, fans, blowers, compressors, conveyors, crushers, and industrial machinery
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RW55 |
| Part Number | 3RW5536-6HA14 |
| Product Type | Soft Starter |
| Rated Operational Voltage (Ue) | 200–480V AC |
| Control Voltage (Us) | 110–250V AC |
| Rated Current | 171A |
| Frequency | 50/60 Hz |
| Motor Power at 400V | Up to 90 kW |
| Motor Power (Inside Delta Connection) | Up to 160 kW |
| Starting Method | Soft Start / Soft Stop |
| Overload Protection | Integrated Electronic Motor Protection |
| Current Limiting | Yes |
| Torque Control | Yes |
| Pump Control Function | Yes |
| Integrated Bypass | Yes |
| Communication Support | PROFINET, PROFIBUS, EtherNet/IP, Modbus TCP, Modbus RTU |
| Main Connections | Busbar Connection |
| Auxiliary Connections | Screw Terminals |
| Degree of Pollution | Pollution Degree 3 |
| Rated Impulse Withstand Voltage (Uimp) | 6kV |
| Operating Temperature | -25°C to +60°C |
| Mounting Type | Panel Mount |
| Protection Standard | IEC 60947-4-2 |
| Application | Pumps, Fans, Compressors, Conveyors, Crushers, Industrial Motors |
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