Product Overview
Technical Summary
| Product designation | Soft starter |
|---|---|
| Size | S0 |
| Rated current at 40 °C | 25 A |
| Motor power at 500 V | 15 kW at 40 °C, standard circuit |
| Operating voltage | 400 … 600 V at 500 V standard circuit |
| Control supply | 24 V AC/DC |
| Operating frequency | 50 … 60 Hz at 500 V |
| Main and control connections | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 according to IEC 60529 |
| Lifecycle | Active Product |
Key Features
25 A at 40 °C, 23 A at 50 °C and 21 A at 60 °C.
15 kW at 500 V in a standard circuit at 40 °C.
400 … 600 V at 500 V standard-circuit data, with -15 % relative negative tolerance and 10 % relative positive tolerance.
AC/DC control supply with 24 V at AC and 24 V at DC; the AC value applies at 50 Hz and 60 Hz.
Has intrinsic device protection, motor overload protection, external reset and adjustable current limitation. Thermistor motor protection evaluation, inside-delta circuit and motor brake output are not included.
Uses screw-type terminals for the main, auxiliary and control circuits; fastening is by screw and snap-on mounting.
Frequently Asked Questions
What is the exact product designation?
It is the Siemens SIRIUS 3RW4026-1BB05 soft starter, size S0.
What motor power rating does the 3RW4026-1BB05 have?
It has a 15 kW rating at 500 V in a standard circuit at 40 °C.
What control supply does this soft starter use?
The control supply is AC/DC: 24 V at AC at 50 Hz and 60 Hz, and 24 V at DC.
Which functions are not included?
It is without thermistor motor protection evaluation, inside-delta circuit and motor brake output.
