Siemens 3RW4038-1BB04

Soft starter SIRIUS 3RW40

The Sirius 3RW40 soft starter 250 kW are fitting for standard 3-phase applying and are designed for soft on/off of 3-phase asynchronous motors. It's avoid current peaks and torque that occur when applying star-delta starters. Soft starter Siemens 3RW40 is appointed with optimal operating. Fitted shunt contact system reduces energy losses in exploitation, so the constituent element does not warm-up. With the four-step rotary switch, the overload trip time can be set. Full adjustable amperage limitation, the motor is reliably covered yet from an unexpected increase in amperage. The 3 LEDs are used to mapping the operating mode, invalid trip times (trip class), no load, overheating. The main types applications: fans, presses, conveyors, chillers, working mechanisms, agitators.