Product Overview
Technical Summary
| Product | SIRIUS soft starter S0 |
|---|---|
| Rated operational current at 40 °C | 32 A |
| Standard-circuit motor power at 500 V and 40 °C | 18.5 kW |
| Operating voltage at standard circuit | 400 … 600 V |
| Operating frequency at 500 V | 50 … 60 Hz |
| Control supply voltage | 110 … 230 V AC/DC |
| Main circuit connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection class | IP20 |
| Operating ambient temperature | -25 … +60 °C |
| Product lifecycle | Active Product |
Key Features
32 A at 40 °C, 29 A at 50 °C, and 26 A at 60 °C.
18.5 kW at 500 V in a standard circuit at 40 °C; operating voltage is 400 … 600 V.
AC/DC control supply with 110 … 230 V at AC or DC.
Has integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
Has screw-type terminals for the main, auxiliary, and control circuits; fastening uses screw and snap-on mounting.
Width: 45 mm; height: 125 mm; depth: 155 mm; front protection class: IP20.
Frequently Asked Questions
What is the exact product type?
It is a Siemens SIRIUS 3RW4027-1BB15 S0 soft starter.
What motor power is supported at 500 V?
The standard-circuit value is 18.5 kW at 500 V and 40 °C.
What control supply does this configuration use?
The control supply is 110 … 230 V AC/DC.
How is the unit mounted and connected?
It uses screw and snap-on mounting, with screw-type terminals for the main, auxiliary, and control circuits.
