Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size | S0 |
| Operational current at 40 °C | 38 A |
| At 500 V standard circuit power | 22 kW |
| Operating voltage at standard circuit | 400 … 600 V |
| Control supply voltage type | AC/DC |
| Control supply voltage | 24 V |
| Operating frequency | 50 … 60 Hz |
| Fastening method | screw and snap-on mounting |
| Main current circuit connection | screw-type terminals |
| Protection class IP on the front according to IEC 60529 | IP20 |
Applications
Supports controlled motor starting with adjustable current limitation.
Provides motor overload protection.
Supports external reset function.
Key Features
Soft starter for the SIRIUS family, size S0.
Rated value at 40 °C is 38 A.
At 500 V, standard circuit rating is 22 kW at 40 °C.
Control supply voltage type is AC/DC with 24 V at AC and DC.
Main current circuit and auxiliary and control circuit use screw-type terminals.
Supplied lifecycle status is Active Product.
Frequently Asked Questions
What is Siemens 3RW4028-1BB05?
It is a SIRIUS soft starter, order number 3RW4028-1BB05.
What are the key electrical ratings of 3RW4028-1BB05?
Rated current is 38 A at 40 °C, and the standard circuit rating is 22 kW at 500 V.
What control supply does 3RW4028-1BB05 use?
The control supply voltage type is AC/DC, with 24 V at AC and DC.
What connection type is used on 3RW4028-1BB05?
Main current circuit and auxiliary and control circuit use screw-type terminals.
What is the lifecycle status of 3RW4028-1BB05?
The lifecycle status is Active Product.
