Product information
Overview
Key Features
- Motor starting control: SIRIUS soft starter with thyristors, integrated bypass contact system and adjustable current limitation.
- Current and power ratings: Rated operational current is 72 A at 40 °C, 62 A at 50 °C and 60 A at 60 °C; rated power is 37 kW at 400 V in a standard circuit at 40 °C.
- Electrical supply: Operating voltage: 200 … 480 V. Control supply: 24 V AC/DC, with 50 Hz and 60 Hz rated control-supply frequencies.
- Protection functions: Has intrinsic device protection, motor overload protection and external reset. Thermistor motor protection evaluation is not available.
- Terminals and contacts: Main, auxiliary and control circuits use screw-type terminals. Auxiliary contacts include 0 NC, 2 NO and 1 CO contacts.
- Mounting and protection: S2 device with screw and snap-on mounting, 55 mm width, 160 mm height, 170 mm depth and IP20 front protection.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product family | SIRIUS S2 |
| Rated operational current at 40 °C | 72 A |
| Rated power at 400 V, standard circuit, 40 °C | 37 kW |
| Operating voltage | 200 … 480 V |
| Control supply | 24 V AC/DC |
| Operating frequency | 50 … 60 Hz |
| Main circuit connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 |
Frequently Asked Questions
What is the rated operational current of Siemens 3RW4038-1BB04?
The rated operational current is 72 A at 40 °C, 62 A at 50 °C and 60 A at 60 °C.
What motor power is supported at 400 V?
The rated power is 37 kW at 400 V in a standard circuit at 40 °C.
What supply and terminals does this soft starter use?
The operating voltage is 200 … 480 V, the control supply is 24 V AC/DC, and the main, auxiliary and control circuits use screw-type terminals.
Does the configuration include thermistor motor protection evaluation?
It is without thermistor motor protection evaluation. It has motor overload protection and external reset.
How can I request a quotation for this item?
Send the required quantity, destination and requested date for a model-specific quotation.
