Product information
Overview
Key Features
- Motor control and protection: The soft starter has integrated bypass contactors, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Rated current: Rated operational current is 72 A at 40 °C, 62 A at 50 °C, and 60 A at 60 °C.
- Standard-circuit motor rating: The rated motor power is 22 kW at 230 V and 37 kW at 400 V at 40 °C.
- Operating and control supply: Operating voltage is 200 … 480 V, and the control supply is AC/DC at 110 … 230 V.
- Connection and mounting: Main, auxiliary, and control circuits use screw-type terminals. Fastening is by screw and snap-on mounting; the device has size S2, with dimensions of 55 mm × 160 mm × 170 mm.
- Protection and ambient conditions: Front protection is IP20. Ambient temperature during operation is -25 … +60 °C, with a derating temperature of 40 °C.
Technical Summary
| Product type | SIRIUS soft starter S2 |
|---|---|
| Rated operational current | 72 A at 40 °C; 62 A at 50 °C; 60 A at 60 °C |
| Rated motor power | 22 kW at 230 V; 37 kW at 400 V |
| Operating voltage | 200 … 480 V |
| Control supply | AC/DC, 110 … 230 V |
| Operating frequency | 50 … 60 Hz |
| Terminals | Screw-type terminals for main, auxiliary, and control circuits |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 |
| Operating ambient temperature | -25 … +60 °C |
| Lifecycle | Active Product |
Frequently Asked Questions
What is the rated current of the Siemens 3RW4038-1BB14?
It has a rated operational current of 72 A at 40 °C, 62 A at 50 °C, and 60 A at 60 °C.
What motor power is supported in the standard circuit?
The rated motor power is 22 kW at 230 V and 37 kW at 400 V at 40 °C.
How is the 3RW4038-1BB14 connected and mounted?
It has screw-type terminals for the main, auxiliary, and control circuits, with screw and snap-on mounting.
