Key Features
- Soft starter: SIRIUS soft starter S2 for switching and starting motor loads.
- Integrated bypass contact system: Integrated bypass contact system: Yes.
- Motor protection functions: Motor overload protection: Yes; intrinsic device protection: Yes; external reset: Yes; adjustable current limitation: Yes.
- Control supply: Control supply voltage: 24 V AC/DC.
- Connections and mounting: Screw terminals for the main current circuit and auxiliary and control circuit; screw and snap-on mounting.
Applications
- Motor soft starting: Soft starting for a motor load with adjustable current limitation.
- Motor protection: Motor overload protection and intrinsic device protection for the connected motor circuit.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Brand | SIRIUS |
| Operational current at 40 °C | 63 A |
| Power at 500 V | 37 kW |
| Operating voltage | 400 … 600 V |
| Control supply voltage | 24 V AC/DC |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| External reset | Yes |
| Adjustable current limitation | Yes |
| Protection class on the front according to IEC 60529 | IP20 |
Frequently Asked Questions
What is the Siemens 3RW4037-1BB05 product type?
It is a SIRIUS soft starter S2.
What are the rated current and power for 3RW4037-1BB05?
Rated current is 63 A at 40 °C, and power is 37 kW at 500 V.
What control supply does 3RW4037-1BB05 use?
The control supply voltage is 24 V AC/DC.
What connection type does 3RW4037-1BB05 use?
It uses screw terminals for the main current circuit and for the auxiliary and control circuit.
