SIRIUS Soft Starter S3 80 A – 3RW3046-1BB04
The Siemens SIRIUS 3RW3046-1BB04 is a
high-performance soft starter from the S3 series, designed for smooth
starting and stopping of three-phase induction motors up to 45 kW (400 V).
It ensures reduced mechanical stress, controlled torque, and lower inrush
current during motor start-up, improving overall system reliability and motor
lifespan.
This soft starter is widely used in industrial
automation, pumps, compressors, conveyors, HVAC systems, and process industries,
where smooth motor acceleration is essential for protecting equipment and
ensuring stable power distribution. Its integrated bypass system reduces heat
loss and improves energy efficiency after starting.
🔹 Key Features
|
Parameter |
Specification |
|
Product Series |
Siemens SIRIUS 3RW30 |
|
Part Number |
3RW3046-1BB04 |
|
Product Type |
Soft Starter |
|
Frame Size |
S3 |
|
Rated Current |
80 A |
|
Motor Power (400 V) |
45 kW |
|
Supply Voltage |
200–480 V AC |
|
Control Voltage |
24 V AC/DC |
|
Phases |
3 Phase |
|
Starting Method |
Voltage ramp control |
|
Bypass Function |
Integrated |
|
Protection Function |
Current limiting during start |
|
Mounting Type |
DIN rail / panel mounting |
|
Ambient Temperature |
-25°C to +60°C |
|
Standard |
IEC 60947-4-2 |
|
Application |
Pumps, compressors, conveyors, HVAC systems, industrial
machines |
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