Product Overview
Technical Summary
| Product designation | SIRIUS soft starter |
|---|---|
| Rated current at 40 °C, standard circuit | 113 A |
| Rated current at 40 °C, inside-delta circuit | 196 A |
| Motor power at 400 V and 40 °C, standard circuit | 55 kW |
| Motor power at 400 V and 40 °C, inside-delta circuit | 110 kW |
| Operating voltage | 200 … 460 V AC |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Mounting | Screw fixing |
| Lifecycle | Start of final year of support |
Key Features
- Product designation: SIRIUS soft starter with integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, adjustable current limitation, and inside-delta circuit.
- Rated current at 40 °C: 113 A in standard circuit; 196 A for 3-phase motors in inside-delta circuit.
- Motor power at 400 V and 40 °C: 55 kW in standard circuit; 110 kW in inside-delta circuit.
- Operating and control supply: Operating voltage: 200 … 460 V AC in standard and inside-delta circuit. Control supply: 230 V AC at 50 Hz or 60 Hz.
- Connections and mounting: Busbar connection for the main current circuit, screw-type terminals for auxiliary and control circuits, and screw fixing. Dimensions: 170 mm width, 200 mm height, 270 mm depth.
- Lifecycle status: Start of final year of support. Successor: SIRIUS 3RW5; preferred successor type: 3RW5534-6HA14.
Frequently Asked Questions
What does Siemens 3RW4434-6BC44 identify?
It identifies a SIRIUS soft starter.
Which specifications distinguish this 3RW4434-6BC44 variant?
At 400 V and 40 °C, it has a rated current of 113 A in standard circuit or 196 A in inside-delta circuit, with corresponding motor power of 55 kW or 110 kW.
What connections should be checked for this code?
The main current circuit uses a busbar connection, while auxiliary and control circuits use screw-type terminals.
What details are needed for a quotation?
Provide the complete order number 3RW4434-6BC44, required quantity, and destination.
