Key Features
- Soft starter: SIRIUS soft starter for motor starting and control.
- Integrated bypass contact system: Integrated bypass contact system: Yes.
- Motor protection functions: Motor overload protection, evaluation of thermistor motor protection, and intrinsic device protection.
- Inside-delta circuit: Inside-delta circuit: Yes.
- Control supply and terminals: AC control supply voltage with 230 V at 50 Hz and 60 Hz, plus screw-type terminals for the auxiliary and control circuit.
Applications
- Motor soft starting: Soft starting of motors with a SIRIUS soft starter.
- Inside-delta motor starting: Motor starting in an inside-delta circuit.
- Motor protection: Motor protection with overload protection, thermistor motor protection evaluation, and intrinsic device protection.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Evaluation of thermistor motor protection | Yes |
| Adjustable current limitation | Yes |
| Insulation voltage rated value | 690 V |
| Operational current at 40 °C rated value | 432 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C rated value | 748 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC | 230 V |
Frequently Asked Questions
What is Siemens 3RW4447-6BC44?
It is a SIRIUS soft starter.
What is the operating voltage of 3RW4447-6BC44?
Operating voltage at standard circuit rated value: 200 … 460 V.
What is the control supply voltage for 3RW4447-6BC44?
Control supply voltage 1 at AC: 230 V at 50 Hz and 60 Hz.
What is the rated current of 3RW4447-6BC44?
Operational current at 40 °C rated value: 432 A.
What are the dimensions of 3RW4447-6BC44?
Width: 210 mm, height: 230 mm, depth: 298 mm.
