Technical Summary
| Product brand name | SIRIUS |
|---|---|
| Product designation | Soft starter |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Adjustable current limitation | Yes |
| Operational current at 40 °C rated value | 203 A |
| At 400 V – at standard circuit at 40 °C rated value | 110 kW |
| At 400 V – at inside-delta circuit at 40 °C rated value | 200 kW |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC | 230 V |
| Protection class IP on the front according to IEC 60529 | IP00; IP20 with box terminal/cover |
Applications
Soft starting for a motor with adjustable current limitation and motor overload protection.
Inside-delta circuit operation with the stated current and power ratings.
Key Features
Product designation: Soft starter from the Siemens SIRIUS family.
Integrated bypass contact system: Yes.
Operating voltage: 200 … 460 V; control supply voltage: 230 V AC.
At 400 V, 40 °C standard: 203 A and 110 kW; inside-delta: 352 A and 200 kW.
Busbar connection for the main current circuit, screw-type terminals for the auxiliary and control circuit, and screw fixing for mounting.
Phased-out product; Start of final year of support.
Frequently Asked Questions
What is Siemens 3RW4443-6BC44?
It is a SIRIUS soft starter.
What are the main power ratings of 3RW4443-6BC44?
At 400 V, 40 °C standard: 203 A and 110 kW; inside-delta: 352 A and 200 kW.
What control supply voltage does 3RW4443-6BC44 use?
The control supply voltage is 230 V AC.
What connection types are used on 3RW4443-6BC44?
Busbar connection is used for the main current circuit, and screw-type terminals are used for the auxiliary and control circuit.
What is the lifecycle status of 3RW4443-6BC44?
It is a phased-out product with Start of final year of support.
