Mounting And Connection; Mounting; Connection; Table 8-17: Conductor Cross-Sections, 3Rw30/31 - Siemens sirius System Manual
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8.5 Mounting and connection
8.5.1 Mounting
8.5.2 Connection
Screw-type terminals
Conductor cross-sec-
tions
∅ 5 ... 6 mm / PZ2
10
10
----
AWG
SIRIUS System Manual
GWA 4NEB 430 0999-02b
Snap-on attachment
The 3RW30 soft starters are snapped onto 35 mm rails in acc. with
DIN EN 50 022 without a tool.
The starter is placed on the upper edge of the rail and pressed downward
until it snaps onto the lower edge of the rail.
Frame sizes S00 and S0 can be removed just as easily: The starters are
pressed downward so that the tension of the attachment springs is loos-
ened, and the starters can be removed.
In the case of frame sizes S2 and S3, these attachment springs are released
by a lug on the underside of the starter that can be moved using a screw-
driver.
The 3RW3 electronic soft starters are available with the SIGUT
tem and plus-minus POZIDRIV 2 screws.
The following table shows the permissible conductor cross-sections for the
3RW30 electronic soft starters:
3RW301.
3RW302.
L1 L2 L3
3RW312.
A1/A2; NO/NC
L1 L2 L3
0.8 to 1.2 Nm
2 to 2.5 Nm
7 to 10.3 lb.in
18 to 22 lb.in
2 x (0.5 to 1.5 mm²)
2 x (1 to 2.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (2.5 to 6 mm²)
2 x (1 to 2.5 mm²)
2 x (0.5 to 2.5 mm²)
2 x (2.5 to 6 mm²)
----
----
2 x (14 to 10)
2 x (18 to 14)
Table 8-17: Conductor cross-sections, 3RW30/31
3RW3 semiconductor motor control unit
3RW303.
L1 L2 L3
3 to 4.5 Nm
∅ 5 ... 6 mm /
27 to 40 lb.in
PZ2
13
2 x (0.75 to 16 mm²)
2 x (0.75 to 16 mm²)
13
1 x (0.75 to 25 mm²)
2 x (0.75 to 25 mm²)
13
1 x (0.75 to 35 mm²)
2 x (18 to 3)
AWG
1 x (18 to 2)
‚
terminal sys-
3RW304..
L1 L2 L3
min
4 to 6 Nm
22
4
35 to 53 lb.in
17
2 x (2.5 to 16 mm²)
2 x (2.5 to 35 mm²)
17
1 x (2.5 to 50 mm²)
2 x (10 to 50 mm²)
17
1 x (10 to 70 mm²)
2 x (10 to 1/0)
AWG
1 x (10 to 2/0)
8-37
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