The Siemens 3RW3018-1BB04 soft starter supports motor power up to 7.5 kW at 400 V, with a nominal current rating of 17.6 A at 480 V. This device is designed to improve motor starting in industrial applications by reducing mechanical strain and extending the lifetime of the equipment. Typically used in conveyor systems, pumps, and fans, it ensures smooth operation and reduced electrical stress during startup.
Type |
Soft starter |
Degree of protection (IP) |
IP20 |
Depth |
150mm |
Dim |
(W x H x D) 45 x 95 x 150 mm |
Function |
Single direction |
Height |
95mm |
Integrated motor overload protection |
FALSE |
Manufacturer part # |
3RW30181BB04 |
Max. temperature |
+60°C |
Min. temperature |
-25°C |
Misc Attribute 1 |
Screw connector |
Misc Attribute 2 |
3RW3018-1BB04 |
Motor power at 400 V |
7.5kW |
Nominal current |
17.6A |
Nominal current - rounded value |
17.6A |
Nominal voltage |
480V |
Rated operation current Ie at 40 °C Tu |
17.6A |
Rated power three-phase motor, inline, at 230 V |
4kW |
Rated power three-phase motor, inline, at 400 V |
7.5kW |
Rated surrounding temperature without derating |
40°C |
Release class |
Other |
Voltage type for actuating |
AC/DC |
Width |
45mm |
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