Key Features
- Soft starter: SIRIUS soft starter with product designation Soft starter.
- Integrated protection and start control: Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, evaluation of thermistor motor protection, external reset, adjustable current limitation, and inside-delta circuit.
- Electrical ratings: Values at 400 V, 40 °C standard: 615 A, 355 kW; inside-delta: 1065 A, 630 kW.
- Control supply and connections: 200 … 460 V AC operating voltage, 230 V AC control supply, busbar connection for the main current circuit, and screw-type terminals for the auxiliary and control circuit.
- Lifecycle and mounting: Start of final year of support. Screw fixing with vertical mounting surface, +/-90° rotatable and +/- 22.5° tiltable to the front and back.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| At 400 V, 40 °C standard current | 615 A |
| At 400 V, 40 °C standard power | 355 kW |
| Inside-delta current at 40 °C | 1 065 A |
| Inside-delta power at 40 °C | 630 kW |
| Operating voltage | 200 … 460 V |
| Control supply voltage | 230 V AC |
| Control supply frequency | 50 Hz |
| Main current circuit connection | busbar connection |
| Auxiliary and control circuit connection | screw-type terminals |
| IP front rating | IP00 |
Applications
- 3-phase motor soft starting: Soft starting of a 3-phase motor with standard circuit or inside-delta circuit.
- Motor protection and reset handling: Motor overload protection, thermistor motor protection evaluation, intrinsic device protection, and external reset.
Frequently Asked Questions
What is Siemens 3RW4454-6BC44?
It is a SIRIUS soft starter.
What are the key ratings of Siemens 3RW4454-6BC44?
At 400 V and 40 °C standard, it is rated at 615 A and 355 kW. Inside-delta, it is rated at 1 065 A and 630 kW.
What control supply does Siemens 3RW4454-6BC44 use?
The control supply voltage is 230 V AC.
How is Siemens 3RW4454-6BC44 connected?
The main current circuit uses busbar connection, and the auxiliary and control circuit uses screw-type terminals.
