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 |
| Compliance certificates |
REACH, RoHS, WEEE |
| Country of origin |
Czech Republic |
| DC input voltage |
24 V |
| Degree of protection (IP) |
IP20 |
| Degree of protection (NEMA) |
N/A |
| Depth |
150mm |
| Dimensions |
(W x H x D) 45 x 95 x 150 mm |
| Function |
Single direction |
| Height |
95mm |
| Input Voltage |
200 - 480 V |
| Inrush current |
17.6 A |
| Integrated motor overload protection |
FALSE |
| Internal bypass |
true |
| 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 |
| Package weight |
440g |
| Product colour |
Black |
| Quantity per pack |
1 pc(s) |
| Rated control supply voltage AC 50 Hz |
24 - 24V |
| Rated control supply voltage AC 60 Hz |
24 - 24V |
| Rated control supply voltage DC |
24 - 24V |
| Rated operating voltage Ue |
200 - 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 power three-phase motor, inside delta, at 230 V |
N/A |
| Rated power three-phase motor, inside delta, at 400 V |
N/A |
| Rated surrounding temperature without derating |
40°C |
| Release class |
Other |
| Supply Voltage |
480V |
| Sustainability compliance |
Yes |
| Torque control |
false |
| Voltage type for actuating |
AC/DC |
| Width |
45mm |
| With display |
false |
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