Product Description
Key Features
- Current and motor rating: Rated operational current: 615 A at 40 °C in the standard circuit. At 400 V, the rating is 355 kW in the standard circuit and 630 kW in the inside-delta circuit.
- Inside-delta performance: Rated operational current for 3-phase motors in the inside-delta circuit: 1 065 A at 40 °C. Minimum load: 8 %.
- Protection and control functions: Has intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset, adjustable current limitation, and a motor brake output.
- Supply and connections: Operating voltage: 200 … 460 V for both standard and inside-delta circuits. Control supply: 230 V AC at 50 Hz or 60 Hz. Main current circuit: busbar connection; auxiliary and control circuit: screw-type terminals.
- Mechanical installation: Dimensions: 510 mm width, 640 mm height, and 290 mm depth. Mounting uses screw fixing; the mounting position requires a vertical mounting surface with the stated rotation and tilt limits.
- Lifecycle status: Product lifecycle: Start of final year of support.
Applications
- Motor overload protection: Provides motor overload protection and evaluates thermistor motor protection.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Standard-circuit rated current at 40 °C | 615 A |
| Inside-delta rated current at 40 °C | 1 065 A |
| 400 V motor rating, standard circuit | 355 kW |
| 400 V motor rating, inside-delta circuit | 630 kW |
| Operating voltage | 200 … 460 V |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Main current connection | Busbar connection |
| Protection class IP on the front | IP00 |
| Product lifecycle | Start of final year of support |
Frequently Asked Questions
What is the rated current of the Siemens 3RW4454-6BC44?
The rated operational current is 615 A at 40 °C in the standard circuit, or 1 065 A at 40 °C in the inside-delta circuit.
What motor rating is provided at 400 V?
The rating is 355 kW in the standard circuit and 630 kW in the inside-delta circuit.
What connections does this configuration have?
The main current circuit has a busbar connection, while the auxiliary and control circuit has screw-type terminals.
How is the unit mounted?
It uses screw fixing and requires a vertical mounting surface. With a vertical mounting surface, it is +/-90° rotatable and +/-22.5° tiltable to the front and back.
What lifecycle information should be confirmed for this model?
The product lifecycle is Start of final year of support; confirm the required date and condition preference for the request.
