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Siemens SIRIUS 3RW30 soft starters are designed for basic motor starting applications, offering a cost-effective solution for smooth motor starts. They are suitable for a range of general-purpose applications where basic soft starting is sufficient.
- Power rating: up to 55 kW (at 400 V)
- Two-phase controlled for standard applications
Features
The SIRIUS 3RW30 Basic Performance soft starters are suitable for soft starting of three-phase asynchronous motors.
- Two-phase controlled for standard applications
- Parameterization with rotary potentiometer
- Optional communications interface (PROFINET, PROFIBUS, EtherNet/IP, Modbus)
- Visualization of motor data via optional HMI or analog output
- Integrated motor overload and intrinsic device protection
- Engineering in the TIA Portal
- ATEX/IECEx-certified for use in hazardous areas
Due to two-phase control, the current is kept at minimum values in all three phases throughout the entire starting time and disturbing direct current components are eliminated in addition. This not only enables the two-phase starting of motors up to 55 kW (at 400 V) but also avoids the current and torque peaks which occur, for example, with wye-delta starters.
Product characteristics/function
- Small and compact design
- Parameterization using potentiometers
- Integrated in the SIRIUS modular system
- Hybrid switching technology and 2-phase motor control
Performance features/benefits
- Space-saving, clearly arranged control panel layout
- Simple and fast commissioning
- Link modules to motor starter protectors
- Minimum power loss and optimized motor control by avoiding DC components
Applications:
- Conveyor systems
- Pumps
- Agitators
- Belt conveyors
- and other applications requiring controlled motor starting and stopping
Siemens SIRIUS 3RW30 soft starters offer a straightforward and economical approach to motor starting for basic industrial applications. This soft starters are intended for standard applications where simple and reliable soft starting is required.