Product information
Overview
Key Features
- Motor protection and control: Has motor overload protection, evaluation of thermistor motor protection, adjustable current limitation, external reset, and intrinsic device protection.
- 400 V performance: At 400 V and 40 °C, rated current is 693 A; motor power is 400 kW in a standard circuit and 710 kW in an inside-delta circuit.
- Inside-delta operation: Supports an inside-delta circuit with 1 200 A rated current at 40 °C and a minimum load of 8%.
- Supply and connections: Uses 200 … 460 V rated operating voltage for standard and inside-delta circuits, with 230 V AC control supply and screw-type terminals for auxiliary and control circuits.
- Installation and protection: Uses screw fixing, has a 510 mm x 640 mm x 290 mm body, requires 100 mm upward, 5 mm side, and 75 mm downward spacing, and has IP00 front protection.
- Product lifecycle: The product is in the final year of support. The source identifies SIRIUS 3RW5 as successor and 3RW5553-6HA14 as the preferred successor type.
Technical Summary
| Product type | Soft starter |
|---|---|
| Rated current at 400 V and 40 °C | 693 A |
| Motor power at 400 V, standard circuit | 400 kW |
| Motor power at 400 V, inside-delta circuit | 710 kW |
| Inside-delta rated current at 40 °C | 1 200 A |
| Operating voltage, standard circuit | 200 … 460 V |
| Operating voltage, inside-delta circuit | 200 … 460 V |
| Control supply | 230 V AC at 50 Hz or 60 Hz |
| Main connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Front protection | IP00 |
Frequently Asked Questions
What is the rated current of 3RW4455-6BC44 at 400 V and 40 °C?
The rated current is 693 A in a standard circuit and 1 200 A in an inside-delta circuit.
What motor power does this soft starter support at 400 V?
At 40 °C, it supports 400 kW in a standard circuit and 710 kW in an inside-delta circuit.
What connections does the 3RW4455-6BC44 have?
It has a busbar connection for the main current circuit and screw-type terminals for auxiliary and control circuits.
How is the soft starter mounted and what spacing is required?
It uses screw fixing. For side-by-side mounting, required spacing is 100 mm upward, 5 mm at the side, and 75 mm downward.
Is the 3RW4455-6BC44 a current product?
It is in the final year of support. SIRIUS 3RW5 is identified as the successor, with 3RW5553-6HA14 as the preferred successor type.
