Product Overview
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 693 A |
| Rated operational current in inside-delta circuit at 40 °C | 1 200 A |
| Motor power at 400 V, standard circuit, 40 °C | 400 kW |
| Motor power at 400 V, inside-delta circuit, 40 °C | 710 kW |
| Operating voltage | 200 … 460 V |
| Control supply voltage | 230 V AC at 50 Hz and 60 Hz |
| Main current circuit connection | Busbar connection |
| Auxiliary and control circuit connection | Screw-type terminals |
| Front protection class | IP00 according to IEC 60529 |
| Product lifecycle | Start of final year of support |
Key Features
693 A at 40 °C; 615 A at 50 °C and 551 A at 60 °C.
1 200 A at 40 °C, 1 065 A at 50 °C and 954 A at 60 °C for 3-phase motors in inside-delta circuit.
400 kW at 40 °C in standard circuit and 710 kW at 40 °C in inside-delta circuit.
Has intrinsic device protection, motor overload protection, evaluation of thermistor motor protection, external reset and adjustable current limitation.
Busbar connection for the main current circuit and screw-type terminals for auxiliary and control circuits.
Screw fixing; dimensions are 510 mm wide, 640 mm high and 290 mm deep. Front protection class is IP00 according to IEC 60529.
Frequently Asked Questions
What is the exact product type and rated current of 3RW4455-6BC44?
It is a Siemens SIRIUS soft starter with a rated operational current of 693 A at 40 °C.
What operating voltage and control supply does this soft starter use?
The operating voltage is 200 … 460 V. The control supply is 230 V AC at 50 Hz or 60 Hz.
How is 3RW4455-6BC44 mounted and connected?
It uses screw fixing, a busbar connection for the main current circuit and screw-type terminals for auxiliary and control circuits.
What is included in the 3RW4455-6BC44 configuration?
The configuration has an integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection and a motor brake output. It is without a stated package-completeness claim.
What should be provided for a project quotation?
Provide the requested quantity, destination, schedule context and any additional BOM line items.
