Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| Size | S2 |
| Rated operational current at 40 °C | 63 A |
| Motor rating at 500 V | 37 kW |
| Operating voltage | 400 … 600 V |
| Control supply | 24 V AC/DC |
| Electrical connection | Screw-type terminals |
| Front protection | IP20 |
Key Features
- Product designation: SIRIUS soft starter, size S2.
- Rated operational current: 63 A at 40 °C; 58 A at 50 °C and 53 A at 60 °C.
- Motor rating: 37 kW at 500 V and 30 kW at 400 V in the standard circuit at 40 °C.
- Control supply: 24 V AC/DC, with 50 Hz and 60 Hz control supply frequency.
- Protection and functions: Has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset and adjustable current limitation.
- Connections and mounting: Screw-type terminals for main, auxiliary and control circuits; screw and snap-on mounting.
Frequently Asked Questions
What product does Siemens 3RW4037-1BB05 identify?
It identifies a SIRIUS S2 soft starter.
Which specifications distinguish this 3RW4037-1BB05 variant?
Key details are 63 A at 40 °C, 37 kW at 500 V, 24 V AC/DC control supply and screw-type terminals.
What should be checked when verifying the order number?
Check the complete 3RW4037-1BB05 code together with the product designation, current rating, voltage, control supply and connection type.
