Product Overview
Technical Summary
| Product designation | Soft starter |
|---|---|
| Standard-circuit rated operational current at 40 °C | 203 A |
| Inside-delta rated operational current at 40 °C | 352 A |
| Operating voltage | 200 … 460 V |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Standard-circuit rating at 400 V | 110 kW |
| Inside-delta rating at 400 V | 200 kW |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Front protection | IP00; IP20 with box terminal/cover |
| Lifecycle | Start of final year of support |
Key Features
203 A rated operational current at 40 °C; continuous operating current is 115% of Ie at 40 °C.
352 A rated operational current at 40 °C and 200 kW at 400 V in inside-delta circuit.
200 … 460 V operating voltage; 230 V AC control supply at 50 Hz or 60 Hz; screw-type terminals for auxiliary and control circuit.
Integrated bypass contact system, intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset and adjustable current limitation.
Screw fixing; 210 mm width, 230 mm height and 298 mm depth; vertical mounting surface with the stated rotation and tilt limits.
Start of final year of support. Successor is SIRIUS 3RW5; preferred successor type is 3RW5543-6HA14.
Frequently Asked Questions
What exact product is this line item?
It is the Siemens SIRIUS 3RW4443-6BC44 soft starter.
What current is supported in the standard circuit?
The rated operational current is 203 A at 40 °C in the standard circuit.
What supply and connections does it have?
Operating voltage is 200 … 460 V, the control supply is 230 V AC at 50 Hz or 60 Hz, and the auxiliary and control circuit uses screw-type terminals.
What should be included in a quotation request?
Include the exact product number, requested quantity, destination, schedule context and any additional BOM lines.
