SIRIUS Soft Starter 200-480 V 630 A, AC 110-250 V screw terminals Soft Starter SIRIUS 3RW55 High Performance for demanding applications for gentle starting and stopping of three-phase asynchronous motors. Stepless starting, reducing current peaks, avoiding voltage fluctuations during startup, relieving the power supply network, decreasing mechanical stress on the drive, significant space and wiring savings compared to star-delta starters and frequency converters, maintenance-free switching, and extremely easy handling. The integrated bypass allows for a very compact design, saves energy, and ensures lower heating in the control cabinet. Intelligent monitoring functions protect the soft starter from overheating and the motor from overload. Additionally, you can limit the current during startup to an adjustable maximum value. Thanks to three-phase control, it is particularly suitable for large motor outputs and square root of 3 circuits. The innovative torque control ensures optimal motor startup. Simple and quick commissioning through auto-parameterization or application assistant. Predictive maintenance planning through condition monitoring. Removable HMI with color display for clear measurement and diagnostic displays. Worldwide approvals (e.g., IEC and UL/CSA). The High Performance Soft Starters 3RW55 are available for networks up to 690 V in a power range up to 560 kW with 24 V or 110-250 V control supply voltages, consistently featuring screw and spring terminals. Analog output and thermistor motor protection are integral parts of the High Performance Soft Starters. Optional plug-in communication modules allow connection via PROFINET, PROFIBUS, and Modbus TCP. The built-in HMI module can also be mounted in the control cabinet door. The Soft Starters 3RW55 replace the proven series 3RW44. Soft Starter SIRIUS 3RW5 - as flexible as your task.