Soft Starters for High-Feature

Applications

SIRIUS 3RW44 in Detail

Equipped with maximum functionality, the all-round talent SIRIUS 3RW44 even masters difficult start-up

and stopping processes in a soft manner. Thanks to innovative torque control, it can be employed for drives

up to a power rating of 710 kW (with 400 V) in standard circuit or up to 1200 kW in inside-delta circuit. The

functionality designed for ease of operation facilitates optimum operating comfort.

What are the benefits of the SIRIUS

3RW44?

Thanks to its particularly compact

design, which is a characteristic of the

entire range of SIRIUS soft starters, the

SIRIUS 3RW44 is the ideal solution when

space-saving and transparent control

cabinet arrangements are required. For

optimized motor start-up and stopping,

the innovative SIRIUS 3RW44 offers an

attractive and efficient alternative to

frequency converters. The new torque

control and a settable current limiting

allow for the use of our high-feature

soft starters in almost any application.

The SIRIUS 3RW44 guarantees reliable

prevention of torque surges and current

peaks during motor starting and stopping.

This reduces costs both for switchboard

dimensioning as well as machinery

maintenance.

Whether for standard (in-line) or inside-

delta circuits – the SIRIUS 3RW44 offers

saving potentials, particularly in terms of

size and device costs.

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© Siemens AG 2008