The Siemens 3RW4037-1BB04 soft starter is designed for motor power applications up to 30 kW at 400 V and features a nominal current of 63 A. It facilitates smooth motor startup and minimises mechanical stress, suitable for various industrial applications. This device is ideal for situations where controlled acceleration is needed, thus enhancing motor lifespan and reducing maintenance costs.
Type |
Soft starter |
Degree of protection (IP) |
IP00 |
Depth |
170mm |
Dim |
(W x H x D) 55 x 160 x 170 mm |
Function |
Single direction |
Height |
160mm |
Integrated motor overload protection |
TRUE |
Manufacturer part # |
3RW40371BB04 |
Max. temperature |
+60°C |
Min. temperature |
-25°C |
Misc Attribute 1 |
Screw connector |
Misc Attribute 2 |
3RW4037-1BB04 |
Motor power at 400 V |
30kW |
Nominal current |
63A |
Nominal current - rounded value |
63A |
Nominal voltage |
480V |
Rated operation current Ie at 40 °C Tu |
63A |
Rated power three-phase motor, inline, at 230 V |
18.5kW |
Rated power three-phase motor, inline, at 400 V |
30kW |
Rated surrounding temperature without derating |
40°C |
Release class |
Other |
Voltage type for actuating |
AC/DC |
Width |
55mm |
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