Product information
Overview
Key Features
- Motor protection and control: Has motor overload protection, thermistor motor protection evaluation, external reset, adjustable current limitation, and intrinsic device protection.
- Rated operational current: Rated operational current is 113 A at 40 °C, 100 A at 50 °C, and 88 A at 60 °C in the standard circuit.
- Inside-delta performance: For 3-phase motors in the inside-delta circuit, rated operational current is 196 A at 40 °C, 173 A at 50 °C, and 152 A at 60 °C.
- Motor power at 400 V: At 400 V, motor power is 55 kW in the standard circuit and 110 kW in the inside-delta circuit, both at 40 °C rated value.
- Supply and terminals: Operating voltage is 200 … 460 V AC in both circuit configurations. The control supply is 230 V AC at 50 Hz and 60 Hz; auxiliary and control circuits use screw-type terminals.
- Installation and protection: Dimensions are 170 mm wide, 200 mm high, and 270 mm deep. Mounting uses screw fixing; front protection is IP00, or IP20 with box terminal/cover.
Technical Summary
| Product type | Soft starter |
|---|---|
| Order number | 3RW4434-6BC44 |
| Rated operational current at 40 °C, standard circuit | 113 A |
| Rated operational current at 40 °C, inside-delta circuit | 196 A |
| Motor power at 400 V, standard circuit | 55 kW |
| Motor power at 400 V, inside-delta circuit | 110 kW |
| Operating voltage | 200 … 460 V AC |
| Control supply | 230 V AC at 50 Hz and 60 Hz |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Product lifecycle | Start of final year of support |
Frequently Asked Questions
What is the rated current of Siemens 3RW4434-6BC44?
It has 113 A at 40 °C in the standard circuit and 196 A at 40 °C in the inside-delta circuit.
What motor power is supported at 400 V?
The rated value is 55 kW in the standard circuit and 110 kW in the inside-delta circuit at 40 °C.
What supply and connections does this soft starter use?
Operating voltage is 200 … 460 V AC. The control supply is 230 V AC at 50 Hz and 60 Hz, with busbar connection for the main current circuit and screw-type terminals for auxiliary and control circuits.
How is the 3RW4434-6BC44 mounted and protected?
It uses screw fixing. Front protection is IP00, or IP20 with box terminal/cover; required side-by-side spacing is 100 mm upwards, 5 mm at the side, and 75 mm downwards.
Is this product currently supported?
It is at the start of its final year of support. The source identifies SIRIUS 3RW5 as the successor family and 3RW5534-6HA14 as the preferred successor type.
