Key Features
- SIRIUS soft starter: Product designation: Soft starter.
- S0 size and 38 A rating: Size of engine control device: S0. Operational current at 40 °C rated value: 38 A.
- Control and power connections: Control supply voltage: 110 … 230 V AC at 50 Hz and 60 Hz, or 110 … 230 V DC. Main current circuit and auxiliary and control circuit use screw-type terminals.
- Built-in protection and current control: Integrated bypass contact system: Yes. Thyristors: Yes. Intrinsic device protection: Yes. Motor overload protection: Yes. Adjustable current limitation: Yes.
Technical Summary
| product designation | Soft starter |
|---|---|
| product brand name | SIRIUS |
| size of engine control device | S0 |
| at 40 °C rated value | 38 A |
| at 500 V | 22 kW |
| operating voltage at standard circuit rated value | 400 … 600 V |
| control supply voltage 1 at AC at 50 Hz | 110 … 230 V |
| control supply voltage 1 at AC at 60 Hz | 110 … 230 V |
| control supply voltage 1 at DC | 110 … 230 V |
| type of electrical connection for main current circuit | screw-type terminals |
| fastening method | screw and snap-on mounting |
| protection class IP on the front according to IEC 60529 | IP20 |
Applications
- Motor soft starting with current limitation: Soft starting for a motor with adjustable current limitation.
- Motor overload protection: Motor overload protection function for the connected motor.
- External reset control: External reset function for reset handling.
Frequently Asked Questions
What is the exact Siemens model and product type of 3RW4028-1BB15?
Siemens 3RW4028-1BB15 is a SIRIUS soft starter.
What are the key electrical ratings for 3RW4028-1BB15?
It is rated at 38 A at 40 °C and 22 kW at 500 V.
What control supply voltage does 3RW4028-1BB15 use?
The control supply voltage is 110 … 230 V AC at 50 Hz and 60 Hz, or 110 … 230 V DC.
Which connection type is used on 3RW4028-1BB15?
The main current circuit and the auxiliary and control circuit use screw-type terminals.
Which mounting and protection details are listed for 3RW4028-1BB15?
It uses screw and snap-on mounting and has IP20 front protection according to IEC 60529.
