Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size | S0 |
| Operational current at 40 °C | 38 A |
| Power at 400 V | 18.5 kW |
| Operating voltage | 200 … 480 V |
| Control supply voltage type | AC/DC |
| Control supply voltage | 110 … 230 V |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Protection class IP on the front according to IEC 60529 | IP20 |
Key Features
Soft starter, S0 size
SIRIUS soft starter with size of engine control device S0.
SIRIUS soft starter with size of engine control device S0.
38 A rated current
Operational current at 40 °C rated value: 38 A.
Operational current at 40 °C rated value: 38 A.
18.5 kW at 400 V
At 400 V, standard circuit rated value: 18.5 kW.
At 400 V, standard circuit rated value: 18.5 kW.
200-480 V AC operating voltage
Operating voltage at standard circuit rated value: 200 … 480 V.
Operating voltage at standard circuit rated value: 200 … 480 V.
110-230 V AC/DC control supply
Control supply voltage type: AC/DC, with 110 … 230 V at AC and DC.
Control supply voltage type: AC/DC, with 110 … 230 V at AC and DC.
Screw terminals
Screw-type terminals are used for the main current circuit and the auxiliary and control circuit.
Screw-type terminals are used for the main current circuit and the auxiliary and control circuit.
Applications
Soft starting of a motor
Provides soft starter control for a motor current circuit.
Provides soft starter control for a motor current circuit.
Motor overload protection
Provides motor overload protection and intrinsic device protection.
Provides motor overload protection and intrinsic device protection.
Frequently Asked Questions
What is the exact product name of 3RW4028-1BB14?
It is a Siemens SIRIUS soft starter, model 3RW4028-1BB14.
What are the rated current and power of 3RW4028-1BB14?
The rated current is 38 A at 40 °C, and the power is 18.5 kW at 400 V.
What control supply voltage does 3RW4028-1BB14 use?
The control supply is AC/DC, with 110 … 230 V at AC and DC.
Which connection type is used on 3RW4028-1BB14?
The main current circuit and the auxiliary and control circuit use screw-type terminals.
What protection features are listed for 3RW4028-1BB14?
It has intrinsic device protection, motor overload protection, and an integrated bypass contact system.
