Product Overview
Technical Summary
| Product type | SIRIUS soft starter S3 |
|---|---|
| Rated current at 40 °C | 80 A |
| Motor power at 500 V | 55 kW at 40 °C in a standard circuit |
| Operating voltage at 500 V | 400 … 600 V |
| Control supply | 24 V AC/DC |
| Operating frequency at 500 V | 50 … 60 Hz |
| Main circuit connection | Screw-type terminals |
| Fastening method | Screw and snap-on mounting |
| Front protection | IP20 according to IEC 60529 |
| Operating ambient temperature | -25 … +60 °C |
| Product lifecycle | Active Product |
Key Features
Rated current is 80 A at 40 °C. Motor power is 55 kW at 500 V in a standard circuit at 40 °C.
The control supply is AC/DC with a rated voltage of 24 V at 50 Hz, 60 Hz, and DC.
The soft starter has intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
An integrated bypass contact system and thyristors are present.
Main, auxiliary, and control circuits use screw-type terminals. Fastening is by screw and snap-on mounting.
Front protection is IP20 with finger-safe protection for vertical contact from the front. Dimensions are 70 mm wide, 170 mm high, and 190 mm deep.
Frequently Asked Questions
What is the exact Siemens soft starter model?
It is the Siemens SIRIUS 3RW4046-1BB05, an S3 soft starter.
What rated current and motor power does it support?
Rated current is 80 A at 40 °C. Motor power is 55 kW at 500 V in a standard circuit at 40 °C.
What control supply and terminals does it use?
The control supply is 24 V AC/DC, and the main, auxiliary, and control circuits use screw-type terminals.
How is the unit mounted?
It uses screw and snap-on mounting. The dimensions are 70 mm x 170 mm x 190 mm.
What should be included in a project quotation request?
Include the requested quantity, destination, schedule context, and any additional BOM line items.
