Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size | S0 |
| Operational current at 40 °C | 32 A |
| Power at 500 V | 18.5 kW |
| Operating voltage at standard circuit | 400 … 600 V |
| Control supply voltage type | AC/DC |
| Control supply voltage 1 at AC | 24 V |
| Control supply voltage 1 at DC | 24 V |
| Fastening method | screw and snap-on mounting |
| Protection class IP on the front according to IEC 60529 | IP20 |
Key Features
SIRIUS soft starter
Soft starter for the SIRIUS 3RW soft starters range.
Soft starter for the SIRIUS 3RW soft starters range.
S0 size, 32 A
S0 frame with 32 A rated current at 40 °C.
S0 frame with 32 A rated current at 40 °C.
18.5 kW at 500 V
Standard circuit power rating of 18.5 kW at 500 V and 40 °C.
Standard circuit power rating of 18.5 kW at 500 V and 40 °C.
24 V AC/DC control supply
Control supply voltage type is AC/DC, with 24 V at AC and DC.
Control supply voltage type is AC/DC, with 24 V at AC and DC.
Integrated bypass contact system
Includes an integrated bypass contact system and thyristors.
Includes an integrated bypass contact system and thyristors.
Screw terminals
Main current circuit and auxiliary and control circuit use screw-type terminals.
Main current circuit and auxiliary and control circuit use screw-type terminals.
Applications
Motor starting with reduced current limitation
For soft starting of a motor with adjustable current limitation.
For soft starting of a motor with adjustable current limitation.
Motor overload protection
For motor overload protection in a standard circuit.
For motor overload protection in a standard circuit.
Frequently Asked Questions
What is Siemens 3RW4027-1BB05?
A SIRIUS soft starter in S0 size.
What is the rated current of 3RW4027-1BB05?
32 A at 40 °C.
What control supply voltage does 3RW4027-1BB05 use?
24 V AC/DC control supply.
What are the power and operating voltage ratings of 3RW4027-1BB05?
18.5 kW at 500 V, with an operating voltage range of 400 … 600 V.
