Product Description
Key Features
- Rated performance at 400 V: Rated operational current: 551 A at 40 °C and 494 A at 50 °C. Rated motor power: 315 kW at 400 V in a standard circuit and 560 kW in an inside-delta circuit.
- Control and protection functions: Has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset, and adjustable current limitation.
- Supply and voltage range: Standard and inside-delta operating voltage: 200 … 460 V, with -15 % relative negative tolerance and 10 % relative positive tolerance. Control supply: 230 V AC at 50 Hz and 60 Hz.
- Electrical connections: Main current circuit: busbar connection with 3 poles. Auxiliary and control circuit: screw-type terminals with 3 NO contacts, 1 CO contact, and 0 NC contacts.
- Installation and enclosure data: Dimensions: 510 mm width, 640 mm height, and 290 mm depth. Screw fixing; front protection class IP00 according to IEC 60529.
- Lifecycle and matching identity: Product designation: Soft starter. Product lifecycle: Start of final year of support. Exact order number: 3RW4453-6BC44.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 551 A |
| Rated motor power at 400 V, standard circuit | 315 kW |
| Rated motor power at 400 V, inside-delta circuit | 560 kW |
| Operating voltage, standard and inside-delta circuit | 200 … 460 V, -15 % / 10 % tolerance |
| Control supply | 230 V AC at 50 Hz and 60 Hz |
| Main current connection | Busbar connection, 3 poles |
| Auxiliary and control connection | Screw-type terminals |
| Front protection class | IP00 according to IEC 60529 |
| Product lifecycle | Start of final year of support |
| Exact order number | 3RW4453-6BC44 |
Frequently Asked Questions
What exact model should be confirmed for this soft starter?
Confirm the complete order number 3RW4453-6BC44 and the SIRIUS product designation Soft starter.
What are the rated current and motor power at 400 V?
At 40 °C, the rated operational current is 551 A. Motor power is 315 kW in a standard circuit and 560 kW in an inside-delta circuit.
What control supply and connections does it have?
The control supply is 230 V AC at 50 Hz and 60 Hz. The main current circuit uses a busbar connection; auxiliary and control circuits use screw-type terminals.
How is the unit mounted and what spacing is required?
It uses screw fixing. Required side-by-side spacing is 100 mm upwards, 5 mm at the side, and 75 mm downwards; the mounting position is limited to the stated vertical-surface rotation and tilt conditions.
What lifecycle information should be checked?
The product lifecycle is Start of final year of support. Confirm the required date and the requested condition preference when submitting a part inquiry.
