Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| 400 V standard circuit | 47 A; 22 kW at 40 °C rated value |
| 400 V inside-delta circuit | 81 A; 45 kW at 40 °C rated value |
| Operating voltage | 200 … 460 V rated value; -15 % / 10 % relative tolerance |
| Control supply | AC, 230 V at 50 Hz and 60 Hz rated value |
| Main current connection | Box terminal; 3 poles |
| Auxiliary and control connection | Spring-loaded terminals |
| Mounting | Screw fixing; vertical mounting surface +/-90° rotatable and +/-22.5° tiltable |
| Front protection | IP20 according to IEC 60529 |
| Product lifecycle | Start of final year of support |
Key Features
- Product designation: SIRIUS soft starter with integrated bypass contact system and thyristors.
- 400 V standard circuit: Rated value: 47 A and 22 kW at 40 °C.
- 400 V inside-delta circuit: Rated value: 81 A and 45 kW at 40 °C.
- Operating voltage: 200 … 460 V rated value for standard circuit and inside-delta circuit; relative tolerances are -15 % and 10 %.
- Control supply: AC, 230 V rated value at 50 Hz and 60 Hz, with relative tolerances of -15 % and 10 %.
- Installation and protection: Screw fixing, IP20 protection class on the front according to IEC 60529, and vertical mounting surface with +/-90° rotation or +/-22.5° front-to-back tilt.
Frequently Asked Questions
What does Siemens 3RW4424-3BC44 identify?
It identifies a SIRIUS soft starter with an integrated bypass contact system and thyristors.
Which specifications distinguish this MLFB at 400 V?
The standard circuit has a rated value of 47 A and 22 kW at 40 °C; the inside-delta circuit has a rated value of 81 A and 45 kW at 40 °C.
What code and nameplate details should be checked?
Check the complete order number 3RW4424-3BC44, the SIRIUS designation, the circuit type, the rated current, and the rated power.
What information is needed for a quotation?
Provide the required quantity and destination, together with the complete order number 3RW4424-3BC44.
