Key Features
- SIRIUS soft starter: Product designation: Soft starter.
- Integrated bypass contact system: Built-in bypass contact system for the device.
- Motor protection functions: Motor overload protection, evaluation of thermistor motor protection, and intrinsic device protection.
- Current control: Adjustable current limitation and inside-delta circuit capability.
- Control and switching technology: Thyristors and product component motor brake output.
Applications
- Motor soft starting: Soft starting for a motor in standard circuit or inside-delta circuit operation.
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 |
| Operational current at 40 °C rated value | 780 A |
| At 400 V – at standard circuit at 40 °C rated value | 450 kW |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC at 50 Hz rated value | 230 V |
| Type of electrical connection for main current circuit | busbar connection |
| Type of electrical connection for auxiliary and control circuit | screw-type terminals |
Frequently Asked Questions
What is Siemens 3RW4456-6BC44?
It is a SIRIUS soft starter.
What operating voltage does 3RW4456-6BC44 use?
Operating voltage at standard circuit rated value: 200 … 460 V.
What is the control supply voltage for 3RW4456-6BC44?
Control supply voltage 1 at AC: 230 V.
What type of connections does 3RW4456-6BC44 use?
Main current circuit: busbar connection. Auxiliary and control circuit: screw-type terminals.
What protection and control functions are included in 3RW4456-6BC44?
It includes integrated bypass contact system, motor overload protection, evaluation of thermistor motor protection, intrinsic device protection, and adjustable current limitation.
