Technical Summary
| Product brand name | SIRIUS |
|---|---|
| Product designation | Soft starter |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Intrinsic device protection | Yes |
| Motor overload protection | Yes |
| Evaluation of thermistor motor protection | Yes |
| Adjustable current limitation | Yes |
| Inside-delta circuit | Yes |
| Operational current at 40 °C | 47 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C | 81 A |
| Operating voltage at standard circuit | 200 … 460 V |
Applications
Soft starter function for motor starting and protection.
Operation in a standard circuit with operating voltage of 200 … 460 V and power values up to 22 kW at 400 V.
Operation in an inside-delta circuit with current and power values up to 81 A and 45 kW at 400 V.
Key Features
Product designation: Soft starter; product brand name: SIRIUS.
Integrated bypass contact system: Yes; thyristors: Yes.
Intrinsic device protection: Yes; motor overload protection: Yes; evaluation of thermistor motor protection: Yes; external reset: Yes; adjustable current limitation: Yes.
Inside-delta circuit: Yes; operational current for 3-phase motors at inside-delta circuit: 81 A at 40 °C and 73 A at 50 °C.
Operating voltage at standard circuit: 200 … 460 V; control supply voltage: 230 V AC; type of electrical connection for main current circuit: box terminal; for auxiliary and control circuit: spring-loaded terminals.
Product lifecycle: Start of final year of support; dimensions: 170 mm x 192 mm x 270 mm; net weight: 5,180 Kg.
Frequently Asked Questions
What is Siemens 3RW4424-3BC44?
It is a SIRIUS soft starter.
What is the rated current of 3RW4424-3BC44 at 40 °C?
47 A at 40 °C.
What are the main connection and control details for 3RW4424-3BC44?
The main current circuit uses a box terminal, and the auxiliary and control circuit uses spring-loaded terminals. The control supply voltage is 230 V AC.
What are the operating voltage and power values for 3RW4424-3BC44?
Operating voltage at standard circuit: 200 … 460 V. At 400 V, the standard circuit is 22 kW and the inside-delta circuit is 45 kW.
What is the lifecycle status of 3RW4424-3BC44?
Product lifecycle: Start of final year of support.
