SIEMENS
6/37
Siemens IC 10 · 2017
SIRIUS 3RW Soft Starters
3RW44 for High Feature Applications
General data
6
■
Technical specifications
1)
3RW44 soft starters may be used in isolated supply networks (IT systems)
up to 600 V AC.
2)
At the project configuration stage, it is important to make allowance for the
voltage drop on the motor cable up to the motor connection. If necessary,
higher values for the rated operational voltage or current must be
calculated accordingly for the soft starter.
More information
Manual,
see
FAQs,
Catalog LV 10,
see www.siemens.com/industry/infocenter
Type
3RW442.
3RW443.
3RW444.
3RW445.
3RW446.
Mechanics and environment
Mounting dimensions (WxHxD)
• Screw terminals
mm
170 x 184 x 270
170 x 198 x 270
210 x 230 x 298
510 x 638.5 x 290
576 x 667 x 290
• Spring-type terminals
mm
170 x 184 x 270
170 x 198 x 270
210 x 230 x 298
510 x 638.5 x 290
576 x 667 x 290
Permissible ambient temperature
During operation
°C
0 ... +60; (derating from +40)
During storage
°C
-25 ... +80
Weight
kg
6.5
7.9
11.5
50
78
Permissible mounting position
Installation type
Stand-alone
installation
Permissible installation altitude
m
5 000 (derating from 1 000,
see "Characteristic Curves", page 6/8
); higher on request
Degree of protection
IP00
W
H
D
NSB0_00649a
22,5° 22,5°
90°
90°
1
1
1
2
3
2
3
1
3 5
2
4
≥ 75 mm ( ≥ 3 in)
≥ 100 mm (≥ 4 in)
≥ 5 mm (≥ 0.2 in)
6
Type
3RW44. .-.BC3.
3RW44. .-.BC4.
Terminal
Control electronics
Rated values
Rated control supply voltage
A1/A2/PE
V
115 AC
230 AC
• Tolerance
%
-15/+10
Rated frequency
Hz
50 ... 60
• Tolerance
%
10
Type
3RW44. .-.BC.4
3RW44. .-.BC.5
3RW44. .-.BC.6
Power electronics
Rated operational voltage for inline circuit
1)
V AC
200 ... 460
400 ... 600
400 ... 690
Tolerance
%
-15/+10
Maximum blocking voltage (thyristor)
V AC
1 400
1 800
Rated operational voltage for inside-delta circuit
V AC
200 ... 460
400 ... 600
Tolerance
%
-15/+10
Rated frequency
Hz
50 ... 60
Tolerance
%
10
Uninterrupted duty
at 40 °C (% of
I
e
)
%
115
Minimum load
(% of set motor current
I
M
)
%
8
Maximum cable length
between soft starter and motor
m
500
2)
© Siemens AG 2016