Product Description
Key Features
- SIRIUS soft starter: Product designation: Soft starter. Product brand name: SIRIUS.
- 400 V performance: At 400 V and 40 °C, the rated value is 313 A and 160 kW in a standard circuit; inside-delta circuit values are 542 A and 315 kW.
- Control supply: Control supply voltage: AC, 230 V at 50 Hz and 60 Hz.
- Protection and control functions: Has intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset, and adjustable current limitation.
- Connections and mounting: Main current circuit: busbar connection with 3 poles. Auxiliary and control circuit: screw-type terminals. Fastening method: screw fixing.
- Lifecycle data: Product lifecycle: Start of final year of support.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 313 A |
| Rated power at 400 V, standard circuit | 160 kW |
| Rated power at 400 V, inside-delta circuit | 315 kW |
| Operating voltage | 200 … 460 V |
| Control supply voltage | 230 V AC at 50 Hz and 60 Hz |
| Main current connection | Busbar connection, 3 poles |
| Auxiliary and control connection | Screw-type terminals |
| Protection class on front | IP00; IP20 with box terminal/cover |
| Mounting | Screw fixing; vertical mounting surface +/-90° rotatable and +/-22.5° tiltable |
| Product lifecycle | Start of final year of support |
Frequently Asked Questions
What exact ratings should be confirmed for Siemens 3RW4445-6BC44?
Confirm the circuit type, voltage, ambient temperature, and required rating. At 400 V and 40 °C, the standard-circuit rating is 313 A and 160 kW; the inside-delta rating is 542 A and 315 kW.
What control supply and connections does this soft starter have?
The control supply is 230 V AC at 50 Hz and 60 Hz. The main current circuit uses a busbar connection, and the auxiliary and control circuit uses screw-type terminals.
How is the Siemens 3RW4445-6BC44 mounted?
It uses screw fixing. With a vertical mounting surface, it is +/-90° rotatable and +/-22.5° tiltable to the front and back.
What lifecycle information should be checked for this model?
The product lifecycle is Start of final year of support. Confirm the required lifecycle status, quantity, destination, and condition preference in the inquiry.
