Key Features
- Soft starter: SIRIUS soft starter for controlled motor starting.
- Integrated bypass contact system: Yes.
- Motor protection functions: Motor overload protection, evaluation of thermistor motor protection, and intrinsic device protection.
- Starting control: Adjustable current limitation and inside-delta circuit.
- Electrical interface: Busbar connection for the main current circuit and screw-type terminals for the auxiliary and control circuit.
- Control supply: AC control supply voltage 1 at 50 Hz and 60 Hz: 230 V.
Applications
- Soft starting of three-phase motors: Provides controlled starting for three-phase motor circuits.
- Inside-delta motor circuit operation: Supports use in an inside-delta circuit for three-phase motor control.
- Motor protection and reset handling: Supports motor overload protection, thermistor motor protection evaluation, external reset, and intrinsic device protection.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Motor overload protection | Yes |
| Adjustable current limitation | Yes |
| Inside-delta circuit | Yes |
| Product component motor brake output | Yes |
| Operational current at 40 °C rated value | 134 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC | 230 V |
| Protection class IP on the front according to IEC 60529 | IP00; IP20 with box terminal/cover |
Frequently Asked Questions
What is Siemens 3RW4435-6BC44?
It is a SIRIUS soft starter.
What is the operating voltage of 3RW4435-6BC44?
The operating voltage at standard circuit is 200 … 460 V, and the operating voltage at inside-delta circuit is also 200 … 460 V.
What control supply does 3RW4435-6BC44 use?
The control supply voltage is AC 230 V at 50 Hz and 60 Hz.
How is 3RW4435-6BC44 connected?
The main current circuit uses busbar connection, and the auxiliary and control circuit uses screw-type terminals.
What are the main mounting and size details for 3RW4435-6BC44?
The dimensions are 170 mm width, 200 mm height, and 270 mm depth, with screw fixing and vertical mounting surface installation.
