Key Features
- Soft starter design: SIRIUS soft starter with product designation Soft starter.
- Integrated protection and control functions: Includes intrinsic device protection, motor overload protection, evaluation of thermistor motor protection, external reset, and adjustable current limitation.
- Electrical and connection details: 200-460 V AC operating voltage, 230 V AC control supply, box terminal for the main current circuit, and spring-loaded terminals for the auxiliary and control circuit.
- Performance at 400 V: Values at 400 V, 40 °C standard: 47 A, 22 kW.
- Inside-delta ratings: Inside-delta: 81 A, 45 kW.
- Lifecycle status: Phased-out product. Successor is SIRIUS 3RW5, preferred successor type is 3RW5524-3HA14.
Technical Summary
| Product brand name | SIRIUS |
|---|---|
| Product designation | Soft starter |
| Integrated bypass contact system | Yes |
| Motor overload protection | Yes |
| Adjustable current limitation | Yes |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC | 230 V |
| Operational current at 40 °C rated value | 47 A |
| at 400 V | 22 kW |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C rated value | 81 A |
| at 400 V – at inside-delta circuit at 40 °C rated value | 45 kW |
Applications
- Soft starting of motors: Soft starting and protection of motors using the inside-delta circuit or standard circuit.
Frequently Asked Questions
What is Siemens 3RW4424-3BC44?
It is a SIRIUS soft starter.
What are the 400 V ratings for Siemens 3RW4424-3BC44?
At 400 V and 40 °C standard, the ratings are 47 A and 22 kW.
What control supply does Siemens 3RW4424-3BC44 use?
The control supply voltage is 230 V AC.
Is Siemens 3RW4424-3BC44 still current?
It is a phased-out product. The successor is SIRIUS 3RW5, and the preferred successor type is 3RW5524-3HA14.
