Product Overview
Technical Summary
| Product family | SIRIUS soft starter S2 |
|---|---|
| Rated operational current at 40 °C | 63 A |
| Motor power at 400 V and 40 °C | 30 kW |
| Operating voltage | 200 … 480 V |
| Operating frequency | 50 … 60 Hz |
| Control supply voltage | 110 … 230 V AC/DC |
| Main circuit connection | Screw-type terminals |
| Auxiliary and control circuit connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 |
Key Features
- Product designation: SIRIUS soft starter S2 with integrated bypass contact system and thyristors.
- Rated operational current: 63 A at 40 °C; 58 A at 50 °C and 53 A at 60 °C.
- Motor power at 400 V: 30 kW at 40 °C in the standard circuit.
- Operating voltage: 200 … 480 V rated value in the standard circuit.
- Control supply: 110 … 230 V AC at 50 Hz or 60 Hz, and 110 … 230 V DC.
- Connections and mounting: Screw-type terminals for main, auxiliary, and control circuits; screw and snap-on mounting.
Frequently Asked Questions
What product does Siemens 3RW4037-1BB14 identify?
It identifies a SIRIUS S2 soft starter.
Which specifications distinguish this exact variant?
The listed variant has a 63 A rated operational current at 40 °C, 30 kW at 400 V, 200 … 480 V operation, 110 … 230 V AC/DC control supply, and screw terminals.
What should be checked against the nameplate before ordering?
Check the complete order number 3RW4037-1BB14, the SIRIUS S2 designation, rated current, voltage, control supply, and terminal type.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number.
