Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| Size | S0 |
| Rated current at 40 °C | 25 A |
| Motor rating at 400 V and 40 °C | 11 kW |
| Rated operating voltage | 200 … 480 V |
| Control supply | 24 V AC/DC |
| Operating frequency | 50 … 60 Hz |
| Main circuit connection | Screw-type terminals |
| Auxiliary and control circuit connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 |
| Product lifecycle | Active Product |
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 rating: 11 kW at 400 V and 40 °C in a standard circuit; 5.5 kW at 230 V and 40 °C.
- Operating voltage: 200 … 480 V rated operating voltage in a standard circuit at 400 V; relative tolerances are -15 % and 10 %.
- Control supply: 24 V AC/DC; AC control supply frequency is 50 Hz or 60 Hz, with -20 % and 20 % voltage tolerance.
- Connections and mounting: Screw-type terminals for the main, auxiliary, and control circuits; screw and snap-on mounting.
Frequently Asked Questions
What product does Siemens order number 3RW4026-1BB04 identify?
It identifies a SIRIUS S0 soft starter.
Which specifications distinguish this MLFB variant?
The supplied variant has a 25 A rated current at 40 °C, an 11 kW/400 V motor rating at 40 °C, 200-480 V operating voltage, 24 V AC/DC control supply, and screw-type terminals.
What should be checked against the nameplate before inquiry?
Check the complete order number 3RW4026-1BB04, the SIRIUS designation, S0 size, 25 A rating, voltage ratings, and terminal type.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number 3RW4026-1BB04.
