Product Overview
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product family and size | SIRIUS S3 |
| Rated operational current at 40 °C | 80 A |
| Standard-circuit power at 400 V | 45 kW |
| Standard-circuit power at 500 V | 55 kW |
| Operating voltage at standard circuit | 400 … 600 V |
| Control supply | 110 … 230 V AC/DC |
| Main and auxiliary connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 according to IEC 60529 |
Key Features
- Product designation and frame size: SIRIUS soft starter, size S3.
- Rated operational current: 80 A at 40 °C; 73 A at 50 °C and 66 A at 60 °C.
- Standard-circuit power: 45 kW at 400 V and 55 kW at 500 V, both at 40 °C rated value.
- Main supply: 400 … 600 V operating voltage at standard circuit, with -15 % relative negative tolerance and 10 % relative positive tolerance.
- Control supply: AC/DC control supply, 110 … 230 V at AC and DC.
- Functions and connections: Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, adjustable current limitation, and screw-type terminals.
Frequently Asked Questions
What product does Siemens order number 3RW4046-1BB15 identify?
It identifies a SIRIUS S3 soft starter.
Which specifications distinguish the 3RW4046-1BB15 variant?
The variant has an 80 A rated operational current at 40 °C, 55 kW at 500 V in a standard circuit, 400 … 600 V operating voltage, and 110 … 230 V AC/DC control supply.
What connection and mounting details should be checked?
Check the screw-type terminals for the main, auxiliary, and control circuits, plus screw and snap-on mounting and size S3.
