Technical Summary
| Product designation | Soft starter |
|---|---|
| Series | SIRIUS |
| Model size | S0 |
| Operational current at 40 °C | 38 A |
| Power at 500 V | 22 kW |
| Control supply voltage | 24 V AC/DC |
| Control supply voltage frequency | 50 … 60 Hz |
| Main current circuit connection | screw-type terminals |
| Auxiliary and control circuit connection | screw-type terminals |
Key Features
SIRIUS soft starter
Soft starter with S0 size and product designation Soft starter.
Soft starter with S0 size and product designation Soft starter.
38 A operating current
Rated value at 40 °C is 38 A.
Rated value at 40 °C is 38 A.
22 kW at 500 V
At 500 V, standard circuit rated value is 22 kW at 40 °C.
At 500 V, standard circuit rated value is 22 kW at 40 °C.
24 V AC/DC control supply
Control supply voltage is 24 V AC/DC.
Control supply voltage is 24 V AC/DC.
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.
Integrated bypass contact system
Integrated bypass contact system is included.
Integrated bypass contact system is included.
Applications
Motor soft starting
Soft starting for motor circuits.
Soft starting for motor circuits.
Motor overload protection
Motor overload protection function.
Motor overload protection function.
Frequently Asked Questions
What is Siemens 3RW4028-1BB05?
It is a SIRIUS soft starter with S0 size.
What is the rated current of 3RW4028-1BB05?
The rated current is 38 A at 40 °C.
What power rating does 3RW4028-1BB05 have at 500 V?
At 500 V, the standard circuit rated value is 22 kW at 40 °C.
What control supply voltage does 3RW4028-1BB05 use?
The control supply voltage is 24 V AC/DC.
Which connection type is used on 3RW4028-1BB05?
Main current circuit and auxiliary and control circuit connections use screw-type terminals.
