Key Features
- Soft starter designation: SIRIUS soft starter S2.
- Rated current: 72 A at 40 °C.
- Power rating: 37 kW/400 V at 40 °C.
- Control supply: 110-230 V AC/DC.
- Connection type: Screw terminals.
- Lifecycle: Active Product.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Size | S2 |
| Rated current at 40 °C | 72 A |
| Power at 400 V | 37 kW |
| Operating voltage | 200 … 480 V |
| Control supply voltage | 110 … 230 V |
| Control supply type | AC/DC |
| Integrated bypass contact system | Yes |
| Motor overload protection | Yes |
| External reset | Yes |
| Adjustable current limitation | Yes |
| Main circuit connection | screw-type terminals |
Applications
- Soft starting of a 3-phase AC motor: Used as a soft starter for controlled motor starting.
Frequently Asked Questions
What is the exact Siemens model designation for 3RW4038-1BB14?
It is a SIRIUS soft starter S2.
What are the main electrical ratings of 3RW4038-1BB14?
It is rated at 72 A at 40 °C, 37 kW/400 V, and 200 … 480 V operating voltage.
What control supply does 3RW4038-1BB14 require?
The control supply is 110-230 V AC/DC.
How is 3RW4038-1BB14 connected?
It uses screw terminals for the main current circuit and for the auxiliary and control circuit.
