Siemens 3RW4028-2BB04

Soft starter SIRIUS 3RW40

Siemens Sirius 3RW40 at 400 V are suitable for standard three-phase use and are designed for soft on/off of 3-phase asynchronous motors. They prevent current peaks and torque caused by the utilize of star-delta starters. Soft starter Siemens 3RW40 is appointed with optimal operating. Fitted bypass contact system diminishing energy losses during exploitation, whereby the constituent element does not overheat. With the 4-step rotary switch, the overload trip time may be install. Full adjustable amperage limitation, the engine is surely protected yet from a surprise growth in amperage. Three LEDs are used to display the possible errors, invalid trip times, phase failure, overheating. Main types applications: fans, presses, assembly lines, compressors and coolers, centrifuges, mixers.