Siemens 3RW4026-1BB05

Soft starter SIRIUS 3RW40

Siemens Sirius 3RW40 250 kilowatt are appropriate for standard three-phase use and are allotted for soft start/stop of three-phase induction engines. They prevent current peaks and torque that occur when applying "star-delta" starters. Soft starter Siemens 3RW40 is organized with optimal operating. The built-in shunt contact system decrease energy losses within exploitation, so the components do not warm-up. With the 4-step rotary switch, the overload trip time can be set. Thanks to the managed current limitation, the motor is reliably protected even from a surprise increase in amperage. The 3 LEDs are used to mapping the operating mode, ineffective trip times, no load, device failure. Main typical applications: construction machines, presses, conveyors, chillers, centrifuges, mixers.