Siemens 3RW4028-2BB14

Soft starter SIRIUS 3RW40

Siemens Sirius 3RW40 is intended for high power induction motors (250 kW). Siemens Soft starter provides easy start, allows you to protect the motor against overload, lower the current rate, which makes apply of devices low-priced. The data models use features out-and-outer to this capacity diapason: solid-state motor overburden security and integral protection devices, adjustable current limiting and control the 2-phase method (polarity balance). The Soft starters 3RW40 are the portion of the SIRIUS modular system. Consequently, they have pinpoint sizes and wiring schemes. Thanks to its especially compact size, Siemens soft starters are half the dimension of star-delta starters, thus they take at minimum space in the monitoring cabinet. Together with the contactor, they are applied as safety-free starting conjunction for starting motors.