Siemens 3RW4026-2BB05

Soft starter SIRIUS 3RW40

The Soft starter Sirius 3RW40 is intended for high power 250 Kilowatt asynchronous engines. The device give easy start, protects the motor from overloads, lower power expenditure, which do the utilize of devices cheaper. These devices use features unusual to this energy range: semiconductor motor overload defense and integral appliance defense, adjustable current limiting and control the two-phase technique (polarity balance). The soft starter Siemens 3RW40 are the portion of the SIRIUS modular system. Consequently, they have identical sizes and connection schemes. Thanks to its special compact size, SIRIUS 3RW40 soft starters are half the dimension of star-delta starters, thus they take up minimal space in the control cabinet. At the contactor, they are applied as safety-free starting union for starting engines.