Technical Summary
| Product designation | Soft starter |
|---|---|
| Integrated bypass contact system | Yes |
| Motor overload protection | Yes |
| Adjustable current limitation | Yes |
| Inside-delta circuit | Yes |
| Operational current at 40 °C rated value | 36 A |
| At 400 V – at standard circuit at 40 °C rated value | 18.5 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 starting of motors with the SIRIUS soft starter.
Starting 3-phase motors in an inside-delta circuit.
Motor overload protection and evaluation of thermistor motor protection.
Key Features
Soft starter from the SIRIUS product family.
200-460 V AC operating voltage and 230 V AC control supply.
Inside-delta circuit support with 62 A and 30 kW at 400 V, 40 °C.
Integrated bypass contact system, thyristors, motor overload protection, evaluation of thermistor motor protection, external reset, adjustable current limitation and intrinsic device protection.
Spring-type terminals for the auxiliary and control circuit.
Start of final year of support.
Frequently Asked Questions
What is Siemens 3RW4423-3BC44?
It is a SIRIUS soft starter.
What is the operating voltage range of 3RW4423-3BC44?
Operating voltage at standard circuit rated value: 200 … 460 V.
What control supply does 3RW4423-3BC44 use?
Control supply voltage 1 at AC at 50 Hz rated value: 230 V.
What are the 400 V, 40 °C ratings for this soft starter?
At 400 V, 40 °C: 36 A in standard circuit and 18.5 kW; inside-delta circuit: 62 A and 30 kW.
