Technical Summary
| Product designation | Soft starter |
|---|---|
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Insulation voltage rated value | 690 V |
| Operational current at 40 °C | 880 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C | 1 524 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC | 230 V |
| Control supply voltage frequency 1 rated value | 50 Hz |
Applications
Soft starter for motor starting with motor overload protection and adjustable current limitation.
Inside-delta circuit for 3-phase motors.
Key Features
Product designation: Soft starter.
Integrated bypass contact system: Yes.
Control supply voltage 1 at AC: 230 V at 50 Hz and 230 V at 60 Hz.
Type of electrical connection for auxiliary and control circuit: screw-type terminals.
Start of final year of support lifecycle.
Frequently Asked Questions
What is Siemens 3RW4457-6BC44?
It is a SIRIUS soft starter.
What is the control supply voltage for 3RW4457-6BC44?
The control supply voltage 1 at AC is 230 V at 50 Hz and 230 V at 60 Hz.
What are the main current ratings for 3RW4457-6BC44?
At 40 °C, the operational current is 880 A, and for 3-phase motors at inside-delta circuit it is 1 524 A.
What connections does 3RW4457-6BC44 use?
The main current circuit uses busbar connection, and the auxiliary and control circuit uses screw-type terminals.
What is the lifecycle status of 3RW4457-6BC44?
It is a phased-out product with start of final year of support.
