Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Lifecycle status | Start of final year of support |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Adjustable current limitation | Yes |
| Inside-delta circuit | Yes |
| Operational current at 40 °C rated value | 693 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C rated value | 1 200 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC at 50 Hz rated value | 230 V |
Applications
Used for motor overload protection and evaluation of thermistor motor protection.
Key Features
Soft starter from the SIRIUS family for exact order-number identification.
Includes an integrated bypass contact system and thyristors.
Provides intrinsic device protection, motor overload protection, evaluation of thermistor motor protection, external reset, and adjustable current limitation.
Supports inside-delta circuit operation.
Operating voltage: 200 … 460 V AC. Control supply voltage: 230 V AC. Main current circuit uses busbar connection and auxiliary and control circuit uses screw-type terminals.
Start of final year of support.
Frequently Asked Questions
What is Siemens 3RW4455-6BC44?
It is a SIRIUS soft starter.
What are the main electrical ratings of 3RW4455-6BC44?
At 40 °C, the operational current is 693 A, and the operating voltage at standard circuit is 200 … 460 V.
What connection types does 3RW4455-6BC44 use?
The main current circuit uses busbar connection, and the auxiliary and control circuit uses screw-type terminals.
