3RW444. datasheet(12/40 Pages) SIEMENS

12 / 40 page

High Functionality for Minimum Costs

SIRIUS 3RW40 in Detail

The SIRIUS 3RW40 is the top star among all standard soft starters! Thanks to its innovative control

principle, it is not only the world’s only two-phase-controlled soft starter in the power range from

5.5 kW (with 400 V) to 250 kW (with 400 V), but is also the smallest available solution thanks to its

particularly compact design. It facilitates space-saving and transparent control cabinet arrangements

and is thus more than a supplement of our two-phase-controlled SIRIUS 3RW30 soft starter range.

What are the benefits of the SIRIUS

3RW40?

The SIRIUS 3RW40 soft starter is

seamlessly integrated in our SIRIUS

portfolio for the control cabinet. As you

might already know from experience

with other SIRIUS devices, you will thus

benefit from identical sizes and uniform

connection systems. Regarding size: the

particularly compact design of the SIRIUS

3RW40 is at most half as big as that of a

comparable wye-delta* starter, making

space wastage in the control cabinet a

thing of the past. Also configuration and

mounting are realized rapidly and easily

thanks to 3-conductor connection.

What are the differences compared to

the SIRIUS 3RW30?

In general, the SIRIUS 3RW40 offers

all the advantages of the 3RW30.

In addition, it offers intrinsic device

protection and integrated motor

protection functions. Just test it and

you will be convinced.

* star-delta

3RW444. Datasheet(PDF) 12 Page - Siemens Semiconductor Group