Siemens 3RW4037-1BB05

Soft starter SIRIUS 3RW40

Siemens Sirius 3RW40 is designed for high power 250 Kilowatt asynchronous motors. The soft starter provides light start-up, allows you to protect the engine against overload, reduces power consumption, which makes the use of devices low-priced. The data devices use features unusual to this energy range: solid-state engine overload protection and inbuilt protection devices, adjustable current limiting and two-phase monitoring method. The Soft starters 3RW40 are the portion of the SIRIUS modular system. Consequently, they have identical sizes and connection schemes. Due to its particularly dense dimensions, SIRIUS 3RW40 soft starters are half the size of star-delta starters, thus they take up limited place in the monitoring cabinet. At the contactor, they are applied as protective infinite combinations for starting engines.