Siemens 3RW4038-1TB04

Soft starter SIRIUS 3RW40

Siemens Soft starter 3RW40 is intended for high power asynchronous motors (250 kW). Siemens Soft starter provides easy start, protects the engine against overload, lower power rate, which do apply of apparatus low-priced. These devices are equipped with features out-and-outer to this capacity diapason: semiconductor motor overload defense and built-in protection devices, controllable current qualification and 2-phase monitoring method (polarity balance). The Soft starters 3RW40 are the portion of the SIRIUS modular system. Consequently, they have pinpoint dimensions and wiring schemes. Due to its special dense size, Siemens soft starters are half as much the dimension of star-delta starters, so they take at minimum place in the switch cabinet. At the contactor, they are applied as protective infinite conjunction for starting engines.