Siemens 3RW4024-2BB04

Soft starter SIRIUS 3RW40

The Soft starter Sirius at 400 V are appropriate for standard three-phase applying and are designed for soft on/off of 3-phase asynchronous engines. It's prevent the inrush current and torque that happen when using "star-delta" starters. The Siemens 3RW40 soft starter is appointed with optimal serviceability. Fitted shunt contact system reduces energy losses within working, whereby the constituent element does not overheat. On-off time can be set overload using four-step rotary switch. Thanks to the controllable amperage limit, the motor is reliably covered yet from a sudden increase in amperage. Three LEDs are utilized to mapping the operating mode, invalid trip times, no load, device failure. The main types applications: pumps, air conditioning systems, conveyors, compressors and coolers, working mechanisms, agitators.