Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | Soft starter |
| Standard-circuit rated operational current at 40 °C | 113 A |
| Inside-delta rated operational current at 40 °C | 196 A |
| Operating voltage | 200 … 460 V |
| Power at 400 V and 40 °C | 55 kW standard circuit; 110 kW inside-delta circuit |
| 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 |
| Front protection | IP00; IP20 with box terminal/cover |
| Lifecycle | Start of final year of support; successor is SIRIUS 3RW5 |
Key Features
- Soft starter protection functions: Has intrinsic device protection, motor overload protection, evaluation of thermistor motor protection, external reset, and adjustable current limitation.
- Rated operational current: Rated operational current is 113 A at 40 °C, 100 A at 50 °C, and 88 A at 60 °C in standard circuit operation.
- Inside-delta operation: Supports inside-delta circuit operation with 196 A at 40 °C, 173 A at 50 °C, and 152 A at 60 °C.
- Operating voltage and power: Operating voltage is 200 … 460 V in standard and inside-delta circuits; at 400 V and 40 °C, power is 55 kW in standard circuit and 110 kW in inside-delta circuit.
- Control supply and connections: Uses a 230 V AC control supply at 50 Hz or 60 Hz; the main current circuit uses busbar connection and auxiliary and control circuits use screw-type terminals.
- Mechanical installation: Measures 170 mm wide, 200 mm high, and 270 mm deep; uses screw fixing and requires 100 mm upward, 5 mm side, and 75 mm downward spacing for side-by-side mounting.
Frequently Asked Questions
1. What is the rated operational current of Siemens 3RW4434-6BC44?
The rated operational current is 113 A at 40 °C, 100 A at 50 °C, and 88 A at 60 °C in standard circuit operation.
2. What current does the 3RW4434-6BC44 support in an inside-delta circuit?
The rated operational current is 196 A at 40 °C, 173 A at 50 °C, and 152 A at 60 °C for 3-phase motors in inside-delta circuit operation.
3. What voltage and control supply does this soft starter use?
The operating voltage is 200 … 460 V in standard and inside-delta circuits. The control supply is 230 V AC at 50 Hz or 60 Hz.
4. How is the 3RW4434-6BC44 connected and mounted?
The main current circuit uses busbar connection, while auxiliary and control circuits use screw-type terminals. Mounting uses screw fixing.
5. What should be verified before requesting a quote for this configuration?
Verify the required circuit type, operating current, operating voltage, control supply, connection method, mounting clearances, and the product lifecycle status. This product has a start of final year of support; the preferred successor type is 3RW5534-6HA14.
