Siemens 3RW4038-1BB05

Soft starter SIRIUS 3RW40

Siemens Sirius 3RW40 is designed for high power 250 kW asynchronous motors. Siemens Soft starter give light start-up, protects the motor against overload, lower the current rate, which makes the use of devices low-priced. These models use features unique to this energy diapason: solid-state engine overburden security and integral protection devices, regulating current limiting and control the two-phase method (polarity balance). The Sirius 3RW40 are sections of the SIRIUS modular system. As a result, they have pinpoint dimensions and connection diagrams. Due to their particularly dense dimensions, Siemens soft starters are half as much the dimension of star-delta starters, so they take at minimal place in the monitoring cabinet. At the contactor, they are utilized as protective infinite combinations for electric motors.