Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| Size | S3 |
| Rated current at 40 °C | 106 A |
| Motor power at 400 V | 55 kW |
| Rated operating voltage | 200 … 480 V |
| Rated operating frequency | 50 … 60 Hz |
| Control supply | 24 V AC/DC |
| Main circuit connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 |
Key Features
- Product designation and size: SIRIUS soft starter, size S3.
- Rated current: 106 A at 40 °C; 98 A at 50 °C and 90 A at 60 °C.
- Motor power at 400 V: 55 kW at 400 V in a standard circuit at 40 °C.
- Operating voltage and frequency: 200 … 480 V rated operating voltage and 50 … 60 Hz rated operating frequency.
- Control supply and terminals: 24 V AC/DC control supply; screw-type terminals for the main, auxiliary, and control circuits.
- Protection and functions: Integrated bypass contact system, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
Frequently Asked Questions
What product does Siemens 3RW4047-1BB04 identify?
It identifies a SIRIUS S3 soft starter.
Which specifications distinguish this MLFB variant?
The variant has 106 A at 40 °C, 55 kW at 400 V, 200 … 480 V operating voltage, and 24 V AC/DC control supply.
What connections should be checked?
Check the screw-type terminals for the main, auxiliary, and control circuits.
Does this configuration include thermistor motor protection evaluation, an inside-delta circuit, or a motor brake output?
It has no thermistor motor protection evaluation, no inside-delta circuit, and no motor brake output.
