Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Rated operational current at 40 °C | 106 A |
| Standard-circuit motor rating at 400 V | 55 kW |
| Rated operating voltage | 200 … 480 V |
| Control supply voltage | 110 … 230 V AC/DC |
| Operating frequency | 50 … 60 Hz |
| Size | S3 |
| Main current circuit connection | Screw-type terminals |
| Fastening method | Screw and snap-on mounting |
| Front protection class | IP20 according to IEC 60529 |
| Operating ambient temperature | -25 … +60 °C |
Key Features
- Soft starter rating: Rated operational current: 106 A at 40 °C. Standard-circuit motor rating: 55 kW at 400 V.
- Operating voltage: Rated operating voltage at standard circuit: 200 … 480 V, with -15 % relative negative tolerance and 10 % relative positive tolerance.
- Control supply: Control supply is AC/DC; control supply voltage is 110 … 230 V AC or 110 … 230 V DC.
- Integrated functions: Has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Connections and contacts: Main, auxiliary, and control circuits use screw-type terminals. Auxiliary contacts include 0 NC, 2 NO, and 1 CO contact.
- Mounting and protection: Size: S3. Fastening: screw and snap-on mounting. Front protection class: IP20 according to IEC 60529.
Frequently Asked Questions
1. What is the rated current of Siemens 3RW4047-1BB14?
The rated operational current is 106 A at 40 °C, 98 A at 50 °C, and 90 A at 60 °C.
2. What motor rating is specified at 400 V?
The standard-circuit motor rating is 55 kW at 400 V and 40 °C.
3. What control supply does this soft starter use?
The control supply is AC/DC, with 110 … 230 V AC or 110 … 230 V DC.
4. What terminals are provided?
The main current circuit and auxiliary and control circuits use screw-type terminals.
5. How is the device mounted?
The fastening method is screw and snap-on mounting; size is S3.
