Siemens 3RW4055-6BB45 SIRIUS Soft Starter 134A
Siemens 3RW4055-6BB45 SIRIUS S6 soft starter, 134A, 90kW.
The Siemens 3RW4055-6BB45 is a SIRIUS S6 soft starter designed for smooth motor acceleration. It features a current rating of 134A and a power rating of 90 kW at 500V. This unit operates on a 400-600V AC main circuit voltage with a 230V AC control voltage and utilizes screw terminals for connection. Please note this is a phased-out product, with the SIRIUS 3RW5 series being the successor, and the 3RW5055-6AB15 as the preferred replacement.
This soft starter is ideal for applications requiring controlled motor starting, reducing mechanical stress on equipment and electrical inrush current. Industries such as manufacturing, material handling, and pump control benefit from its ability to provide soft starting for various types of motors.
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| Type | Soft Starter |
| Series | SIRIUS S6 |
| Current | 134 A |
| Power | 90 kW (at 500V) |
| Control Voltage | 230 V AC |
| Main Voltage | 400-600 V AC |
| Temperature | 40 °C |
| Terminals | Screw |
| Condition | Phased-out |