Product Overview
Technical Summary
| Product type | SIRIUS soft starter S0 |
|---|---|
| Rated current | 38 A at 40 °C |
| Motor rating | 22 kW at 500 V in the standard circuit at 40 °C |
| Operating voltage | 400 … 600 V at 500 V standard circuit |
| Control supply | 24 V AC/DC |
| Main connections | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 according to IEC 60529 |
| Operating temperature | -25 … +60 °C during operation |
| Lifecycle | Active Product |
Key Features
38 A at 40 °C; 34 A at 50 °C and 31 A at 60 °C.
18.5 kW at 400 V and 22 kW at 500 V in the standard circuit at 40 °C.
24 V AC/DC, with 50 Hz and 60 Hz rated control supply frequency.
Has integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
Screw-type terminals for the main, auxiliary, and control circuits; screw and snap-on mounting.
45 mm wide, 125 mm high, 155 mm deep; IP20 protection on the front according to IEC 60529.
Frequently Asked Questions
What exact product is this line item?
It is the Siemens SIRIUS 3RW4028-1BB05 S0 soft starter.
What rated current and motor rating does it have?
It has 38 A rated current at 40 °C and a 22 kW rating at 500 V in the standard circuit at 40 °C.
What control supply and terminals are provided?
The control supply is 24 V AC/DC. The main, auxiliary, and control circuits use screw-type terminals.
How is the soft starter mounted and protected?
It uses screw and snap-on mounting and has IP20 protection on the front according to IEC 60529.
Can this line item be added to a quotation request?
Yes. Include the requested quantity, destination, schedule, and any additional BOM lines.
