Technical Summary
| Product brand name | SIRIUS |
|---|---|
| Product designation | Soft starter |
| Integrated bypass contact system | Yes |
| Thyristors | Yes |
| Intrinsic device protection | Yes |
| Motor overload protection | Yes |
| Inside-delta circuit | Yes |
| Insulation voltage rated value | 690 V |
| Operational current at 40 °C rated value | 113 A |
| Operational current for 3-phase motors at inside-delta circuit at 40 °C rated value | 196 A |
| Operating voltage at standard circuit rated value | 200 … 460 V |
| Control supply voltage 1 at AC at 50 Hz rated value | 230 V |
| Fastening method | screw fixing |
| Type of electrical connection for main current circuit | busbar connection |
| Type of electrical connection for auxiliary and control circuit | screw-type terminals |
| Protection class IP on the front according to IEC 60529 | IP00; IP20 with box terminal/cover |
| Product lifecycle | Start of final year of support |
Applications
Soft starting for motor circuits with adjustable current limitation.
Inside-delta circuit operation for 3-phase motors.
Motor overload protection, thermistor motor protection evaluation, and external reset for motor control tasks.
Key Features
Soft starter for the SIRIUS Industrial Controls family.
Includes an integrated bypass contact system and thyristors.
Supports intrinsic device protection, motor overload protection, evaluation of thermistor motor protection, external reset, and adjustable current limitation.
Values at 400 V, 40 °C standard: 113 A, 55 kW. Inside-delta: 196 A, 110 kW. Operating voltage: 200 … 460 V AC.
Control supply voltage: 230 V AC. Auxiliary and control circuit connection: screw-type terminals.
Phased-out product with Start of final year of support.
Frequently Asked Questions
What is Siemens 3RW4434-6BC44?
It is a SIRIUS soft starter.
What are the main electrical ratings of 3RW4434-6BC44?
Values at 400 V, 40 °C standard are 113 A and 55 kW. Inside-delta values are 196 A and 110 kW.
What control supply does 3RW4434-6BC44 use?
The control supply voltage is 230 V AC.
What connections does 3RW4434-6BC44 use?
The main current circuit uses busbar connection, and the auxiliary and control circuit uses screw-type terminals.
What is the lifecycle status of 3RW4434-6BC44?
It is a phased-out product with Start of final year of support.
