Key Features
- Soft starter: SIRIUS soft starter for the 3RW4453-6BC44 order number.
- Integrated bypass contact system: Integrated bypass contact system is included.
- Motor protection functions: Includes motor overload protection, evaluation of thermistor motor protection, and intrinsic device protection.
- Inside-delta circuit: Inside-delta circuit is supported, with adjustable current limitation.
- Control supply: AC control supply with 230 V at 50 Hz and 230 V at 60 Hz.
- Electrical connections: Busbar connection for the main current circuit and screw-type terminals for the auxiliary and control circuit.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Evaluation of thermistor motor protection | Yes |
| Inside-delta circuit | Yes |
| Operational current at 40 °C rated value | 551 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C rated value | 954 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC at 50 Hz rated value | 230 V |
| Type of electrical connection for main current circuit | busbar connection |
| Type of electrical connection for auxiliary and control circuit | screw-type terminals |
Applications
- Motor overload protection: Protection task for a motor against overload conditions.
- Thermistor motor protection evaluation: Evaluation of thermistor motor protection for a motor protection circuit.
- Inside-delta circuit operation: Operation in an inside-delta circuit arrangement.
Frequently Asked Questions
What is Siemens 3RW4453-6BC44?
It is a SIRIUS soft starter.
What are the main current ratings for 3RW4453-6BC44?
The operational current is 551 A at 40 °C in standard circuit and 954 A at 40 °C in inside-delta circuit.
What operating voltage range does 3RW4453-6BC44 support?
The operating voltage at standard circuit and inside-delta circuit is 200 … 460 V.
What control supply does 3RW4453-6BC44 use?
The control supply is AC, with 230 V at 50 Hz and 230 V at 60 Hz.
How is 3RW4453-6BC44 connected?
The main current circuit uses busbar connection, and the auxiliary and control circuit uses screw-type terminals.
