Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size of engine control device | S0 |
| Rated current at 40 °C | 38 A |
| Rated power at 500 V and 40 °C | 22 kW |
| Operating voltage | 400 … 600 V |
| Control supply voltage | 110 … 230 V |
| Control supply type | AC/DC |
| Operating frequency | 50 … 60 Hz |
| Protection class on the front | IP20 |
Key Features
SIRIUS soft starter
Soft starter for the SIRIUS 3RW soft starters range and Basic performance soft starter line.
Soft starter for the SIRIUS 3RW soft starters range and Basic performance soft starter line.
38 A rated current
Rated current at 40 °C is 38 A.
Rated current at 40 °C is 38 A.
22 kW/500 V at 40 °C
Rated power is 22 kW at 500 V and 40 °C.
Rated power is 22 kW at 500 V and 40 °C.
S0 size
Size of engine control device: S0.
Size of engine control device: S0.
Screw terminals
Main current circuit and auxiliary/control circuit use screw-type terminals.
Main current circuit and auxiliary/control circuit use screw-type terminals.
Integrated protection and control functions
Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
Applications
Motor soft starting
Used for soft starting a motor with adjustable current limitation.
Used for soft starting a motor with adjustable current limitation.
Motor overload protection
Used for protecting a motor against overload with intrinsic device protection and motor overload protection.
Used for protecting a motor against overload with intrinsic device protection and motor overload protection.
Frequently Asked Questions
What is Siemens 3RW4028-1BB15?
It is a SIRIUS soft starter, size S0.
What are the main rating values of 3RW4028-1BB15?
It is rated 38 A and 22 kW at 500 V and 40 °C.
What control supply does 3RW4028-1BB15 use?
The control supply voltage is 110 … 230 V AC/DC.
How is 3RW4028-1BB15 connected?
It uses screw-type terminals for the main current circuit and for the auxiliary and control circuit.
