Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Inside-delta circuit | Yes |
| Operational current at 40 °C rated value | 250 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C rated value | 433 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC at 50 Hz rated value | 230 V |
Applications
Soft starting for a motor using the SIRIUS soft starter function.
Operation in an inside-delta circuit for motor starting and current handling.
Motor overload protection, thermistor motor protection evaluation, and intrinsic device protection.
Key Features
Product designation: Soft starter.
Integrated bypass contact system: Yes.
Inside-delta circuit: Yes, with 433 A at 40 °C rated value.
Control supply voltage: AC 230 V at 50 Hz and 60 Hz.
Start of final year of support.
Frequently Asked Questions
What is Siemens 3RW4444-6BC44?
It is a SIRIUS soft starter.
What is the rated current of 3RW4444-6BC44 at 40 °C?
250 A.
What is the operating voltage of 3RW4444-6BC44?
Operating voltage at standard circuit rated value: 200 … 460 V.
What control supply voltage does 3RW4444-6BC44 use?
Control supply voltage 1 at AC is 230 V at 50 Hz and 60 Hz.
