Product Overview
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 63 A |
| Standard circuit rating at 500 V | 37 kW |
| Standard circuit rating at 400 V | 30 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 and auxiliary connection | Screw-type terminals |
| Mounting method | Screw and snap-on mounting |
| Front protection class | IP20 according to IEC 60529 |
| Ambient temperature during operation | -25 … +60 °C |
Key Features
Rated operational current is 63 A at 40 °C; the standard circuit rating is 37 kW at 500 V and 30 kW at 400 V.
Operating voltage at the standard circuit is 400 … 600 V, with a relative negative tolerance of -15 % and a relative positive tolerance of 10 %.
The soft starter has intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
An integrated bypass contact system and thyristors are provided. Evaluation of thermistor motor protection, an inside-delta circuit, and a motor brake output are not provided.
The control supply is AC/DC at 110 … 230 V, with 50 Hz and 60 Hz rated frequencies.
Screw and snap-on mounting, screw-type terminals for the main, auxiliary, and control circuits, and IP20 protection on the front according to IEC 60529.
Frequently Asked Questions
What is the exact product designation?
The exact product is Siemens 3RW4037-1BB15, a SIRIUS soft starter.
What rated current and power does it have?
It has a 63 A rated operational current at 40 °C, with a standard circuit rating of 37 kW at 500 V and 30 kW at 400 V.
What control supply is required?
The control supply is AC/DC, 110 … 230 V, with rated frequencies of 50 Hz and 60 Hz.
How is the unit mounted and connected?
It uses screw and snap-on mounting and screw-type terminals for the main, auxiliary, and control circuits.
Which configuration is supplied without selected functions?
It is without evaluation of thermistor motor protection, an inside-delta circuit, and a motor brake output.
