Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| Size | S0 |
| Rated current at 40 °C | 25 A |
| Motor power at 500 V | 15 kW at 40 °C, standard circuit |
| Operating voltage | 400 … 600 V |
| Operating frequency | 50 … 60 Hz |
| Control supply | 24 V AC/DC |
| Main current connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 according to IEC 60529 |
Key Features
- Product designation: SIRIUS soft starter, size S0.
- Rated current: 25 A at 40 °C; 23 A at 50 °C and 21 A at 60 °C.
- Motor power: 15 kW at 500 V in a standard circuit at 40 °C; 11 kW at 400 V.
- Operating voltage: 400 … 600 V rated value in a standard circuit at 500 V.
- Control supply: 24 V AC/DC, with 50 Hz and 60 Hz rated control supply frequency.
- Connection and mounting: Screw-type terminals, with screw and snap-on mounting.
Frequently Asked Questions
What does Siemens 3RW4026-1BB05 identify?
It identifies a SIRIUS S0 soft starter with 25 A rated current, 15 kW at 500 V, 24 V AC/DC control supply and screw-type terminals.
Which specifications distinguish this MLFB variant?
Key distinguishing specifications are 400 … 600 V rated operating voltage, 50 … 60 Hz operating frequency, integrated bypass contact system, motor overload protection and screw and snap-on mounting.
What should be checked when verifying the code and nameplate?
Check the complete order number 3RW4026-1BB05, the SIRIUS soft starter designation, size S0, 25 A rated current and 24 V AC/DC control supply.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number 3RW4026-1BB05.
