Product Description
Key Features
- Rated performance: 38 A at 40 °C and 18.5 kW at 400 V in a standard circuit.
- Operating voltage and control supply: Operating voltage is 200 … 480 V; the control supply is 24 V AC/DC.
- Integrated functions: Has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Electrical connections: Has screw-type terminals for the main current circuit and auxiliary and control circuits.
- Mechanical variant and mounting: S0 size; 45 mm wide, 125 mm high, and 155 mm deep. Supports screw and snap-on mounting.
- Protection and lifecycle: Front protection class is IP20, with finger-safe front contact protection. Lifecycle status: Active Product.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 38 A |
| Rated power at 400 V, standard circuit, 40 °C | 18.5 kW |
| Operating voltage, standard circuit | 200 … 480 V |
| Operating frequency | 50 … 60 Hz |
| Control supply voltage | 24 V AC/DC |
| Main and auxiliary/control connection | Screw-type terminals |
| Mounting method | Screw and snap-on mounting |
| Front protection class | IP20 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What exact model should be confirmed for this soft starter?
Confirm Siemens SIRIUS 3RW4028-1BB04 and the S0 size designation.
What ratings should be checked for the installed configuration?
Check 38 A at 40 °C, 18.5 kW at 400 V in a standard circuit, and 200 … 480 V operating voltage.
What control supply does the unit use?
The control supply is 24 V AC/DC, with 50 Hz and 60 Hz rated control supply frequencies.
What connections and mounting method are supplied?
The unit has screw-type terminals for the main current circuit and auxiliary and control circuits, with screw and snap-on mounting.
What lifecycle status is supplied for this model?
The lifecycle status is Active Product.
