Product Description
Key Features
- Soft starter ratings: At 400 V and 40 °C, the rated value is 134 A and 75 kW in standard circuit; inside-delta values are 232 A and 132 kW.
- Motor protection and control: Has motor overload protection, thermistor motor protection evaluation, external reset, adjustable current limitation, and intrinsic device protection.
- Supply and connections: Operating voltage is 200 … 460 V AC. Control supply is 230 V AC at 50 Hz or 60 Hz; the main current circuit uses busbar connection and auxiliary/control circuits use screw-type terminals.
- Installation and protection: Dimensions are 170 mm width, 200 mm height, and 270 mm depth. It uses screw fixing, with IP00 on the front or IP20 with box terminal/cover.
- Lifecycle status: The collected product data marks this product as phased-out and gives the product lifecycle as start of final year of support.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated current at 40 °C, standard circuit | 134 A |
| Rated current at 40 °C, inside-delta circuit | 232 A |
| Motor power at 400 V, 40 °C, standard circuit | 75 kW |
| Motor power at 400 V, 40 °C, inside-delta circuit | 132 kW |
| Operating voltage | 200 … 460 V AC |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Front protection | IP00; IP20 with box terminal/cover |
| Product lifecycle | Start of final year of support |
Frequently Asked Questions
What exact Siemens model should be confirmed for a legacy-part request?
Confirm the complete order number 3RW4435-6BC44 and the SIRIUS product designation Soft starter.
What are the 400 V ratings for this soft starter?
At 40 °C, the rated value is 134 A and 75 kW in standard circuit, or 232 A and 132 kW in inside-delta circuit.
What supply and connection details should be checked?
Check the 200 … 460 V AC operating voltage, 230 V AC control supply at 50 Hz or 60 Hz, busbar connection for the main current circuit, and screw-type terminals for auxiliary and control circuits.
What mounting details should be confirmed?
Confirm screw fixing, dimensions of 170 mm x 200 mm x 270 mm, and the required side-by-side spacing of 100 mm upwards, 5 mm at the side, and 75 mm downwards.
What lifecycle information is supplied for this model?
The product data marks 3RW4435-6BC44 as phased-out and gives the lifecycle as start of final year of support.
