Key Features
- Soft starter S2: SIRIUS soft starter in size S2.
- 72 A rated current: Rated current at 40 °C: 72 A.
- Control supply: Control supply voltage: 110-230 V AC/DC.
- Connections: Screw terminals for the main current circuit and the auxiliary and control circuit.
- Motor protection functions: Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Mechanical data: Width 55 mm, height 160 mm, depth 170 mm, with screw and snap-on mounting.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size | S2 |
| Rated current at 40 °C | 72 A |
| Power at 500 V, standard circuit, 40 °C | 45 kW |
| Operating voltage at standard circuit | 400 … 600 V |
| Control supply voltage | 110 … 230 V |
| Control supply type | AC/DC |
| Operating frequency | 50 … 60 Hz |
| Main current circuit connection | screw-type terminals |
| Auxiliary and control circuit connection | screw-type terminals |
| Protection class on the front | IP20 |
Applications
- Motor soft starting: Soft starter for controlled motor starting in a main current circuit.
- Motor overload protection: Protection function for motor overload monitoring and protection.
- Current limitation control: Adjustable current limitation for controlling starting current behavior.
Frequently Asked Questions
What is Siemens 3RW4038-1BB15?
It is a SIRIUS soft starter in size S2.
What are the rated current and power values for 3RW4038-1BB15?
Rated current at 40 °C is 72 A, and power at 500 V, standard circuit, 40 °C is 45 kW.
What supply and control voltage does 3RW4038-1BB15 use?
Operating voltage at standard circuit is 400 … 600 V, and the control supply voltage is 110 … 230 V AC/DC.
What connection type is used on 3RW4038-1BB15?
It uses screw-type terminals for the main current circuit and the auxiliary and control circuit.
What should be confirmed before ordering 3RW4038-1BB15 for quotation?
Confirm the exact order number, requested quantity, destination, and stock and dispatch conditions before ordering.
