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 |
| Adjustable current limitation | Yes |
| Inside-delta circuit | Yes |
| Operational current at 40 °C | 29 A |
| At 400 V, standard circuit at 40 °C | 15 kW |
| 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 starter function for controlled motor starting.
Inside-delta circuit for 3-phase motor connection and operation.
Motor overload protection, thermistor motor protection evaluation, intrinsic device protection, and external reset.
Key Features
Product designation: Soft starter.
Integrated bypass contact system: Yes.
Motor overload protection, evaluation of thermistor motor protection, intrinsic device protection, and external reset.
Adjustable current limitation and inside-delta circuit.
200 … 460 V AC operating voltage, 230 V AC control supply, spring-loaded terminals for auxiliary and control circuit, and box terminal for main current circuit.
Phased-out product. Start of final year of support.
Frequently Asked Questions
What is Siemens 3RW4422-3BC44?
It is a SIRIUS soft starter.
What are the main current ratings for 3RW4422-3BC44?
The rated value is 29 A at 40 °C in standard circuit, and 50 A at 40 °C in inside-delta circuit.
What control supply voltage does 3RW4422-3BC44 use?
The control supply voltage is AC 230 V at 50 Hz and 60 Hz.
What connection types are used on 3RW4422-3BC44?
The main current circuit uses a box terminal, and the auxiliary and control circuit uses spring-loaded terminals.
What is the lifecycle status of Siemens 3RW4422-3BC44?
It is a phased-out product with Start of final year of support.
