Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| Rated operational current, standard circuit | 1 214 A at 40 °C; 1 076 A at 50 °C; 970 A at 60 °C |
| Rated operational current, inside-delta circuit | 2 103 A at 40 °C; 1 864 A at 50 °C; 1 680 A at 60 °C |
| Operating voltage, standard circuit | 200 … 460 V |
| Operating voltage, inside-delta circuit | 200 … 460 V |
| Power at 400 V, standard circuit | 710 kW |
| Power at 400 V, inside-delta circuit | 1 200 kW |
| Control supply voltage | 230 V AC at 50 Hz or 60 Hz |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Front protection class | IP00 according to IEC 60529 |
Key Features
- Product designation: SIRIUS soft starter with integrated bypass contact system and thyristors.
- Rated operational current: 1 214 A at 40 °C, 1 076 A at 50 °C, and 970 A at 60 °C in standard circuit.
- Inside-delta current: 2 103 A at 40 °C, 1 864 A at 50 °C, and 1 680 A at 60 °C for 3-phase motors in inside-delta circuit.
- Operating voltage: 200 … 460 V in standard circuit and 200 … 460 V in inside-delta circuit, with -15 % to 10 % tolerance.
- Control supply: AC control supply at 230 V and 50 Hz or 60 Hz, with -15 % to 10 % voltage tolerance.
- Connections and mounting: Busbar connection for the main current circuit, screw-type terminals for auxiliary and control circuits, and screw fixing.
Frequently Asked Questions
What does Siemens 3RW4466-6BC44 identify?
It identifies a SIRIUS soft starter with an integrated bypass contact system, thyristors, motor overload protection, and a motor brake output.
Which current ratings distinguish this MLFB?
The standard-circuit ratings are 1 214 A at 40 °C, 1 076 A at 50 °C, and 970 A at 60 °C; inside-delta ratings are 2 103 A, 1 864 A, and 1 680 A at those temperatures.
What connections should be checked for this code?
Check the busbar connection for the main current circuit and screw-type terminals for the auxiliary and control circuits.
What details are needed to request a quotation?
Provide the complete order number 3RW4466-6BC44, required quantity, and destination.
