Device Description; Figure 8-1: 3Rw3 Soft Starter; Table 8-2: 3Rw3, Frame Sizes - Siemens sirius System Manual

8.2 Device description

3RW30/31 frame sizes
SIRIUS System Manual
GWA 4NEB 430 0999-02b
The SIRIUS 3RW3 soft starters are part of the SIRIUS modular system. They
are compatible with the other SIRIUS switching devices.
The possible combinations are:
• 3RW3 soft starter + 3RV circuit breaker
• 3RW3 soft starter + 3RU/3RB overload relay + 3RT contactor
The link modules used for combinations of contactors and circuit breakers
are used for this (see Section 8.3.2, "Installation guidelines").

Figure 8-1: 3RW3 soft starter

The 3RW30 soft starter is available in four frame sizes: S00, S0, S2, and S3.
The 3RW31 soft starter is available in frame size S0.
The following table contains the power ranges of the various frame sizes (all
specifications apply to U
Frame size S00 Frame size S0
1.1 - 4 kW 5.5 - 11 kW
6 - 9 A 12.5 - 25 A
(W x H x D) (mm) (W x H x D) (mm)
45 x 97.5 x 93 45x125x119

Table 8-2: 3RW3, frame sizes

3RW3 semiconductor motor control unit
= 400 V and 40° C ambient temperature):
N
Frame size S2
15 - 22 kW
32 - 45 A
(W x H x D) (mm)
55 x 160 x 143
Frame size S3
30 - 55 kW
63 - 100 A
(W x H x D) (mm)
70x170x178
8-5