Siemens 3RW4024-1BB04

Soft starter SIRIUS 3RW40

The Sirius 3RW40 soft starter 250 kilowatts are suitable for standard 3-phase applying and are allotted for soft on/off of 3-phase asynchronous motors. They prevent current peaks and torque caused by the utilize of "star-delta" starters. The Sirius 3RW40 is appointed with optimal operating. Fitted shunt contact system decrease the power losses in working, whereby the components do not overheat. Use time can be set overload tripping four-step rotary switch. Thanks to the adjustable current limitation, the engine is reliably covered yet from an unexpected increase in current strength. Three LEDs are used to display the operating mode, ineffective trip times (trip class), phase failure, overheating. Main typical applications: pumps, presses, conveyors, compressors and coolers, centrifuges, agitators.