Product Overview
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current | 615 A at 40 °C |
| Operating voltage, standard circuit | 200 … 460 V |
| Operating voltage, inside-delta circuit | 200 … 460 V |
| Control supply | 230 V AC at 50 Hz and 60 Hz |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Mounting position | With vertical mounting surface +/-90° rotatable; with vertical mounting surface +/- 22.5° tiltable to the front and back |
| Front protection class | IP00 according to IEC 60529 |
| Lifecycle | Start of final year of support |
Key Features
615 A at 40 °C; 551 A at 50 °C and 489 A at 60 °C.
1 065 A at 40 °C, 954 A at 50 °C and 847 A at 60 °C for 3-phase motors.
Has intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset and adjustable current limitation.
Main current circuit uses busbar connection; auxiliary and control circuits use screw-type terminals.
Start of final year of support. Successor is SIRIUS 3RW5; preferred successor type is 3RW5552-6HA14.
Frequently Asked Questions
What is the exact product designation of 3RW4454-6BC44?
It is a Siemens SIRIUS soft starter.
What operating voltage does this soft starter support?
The rated operating voltage is 200 … 460 V for both the standard circuit and the inside-delta circuit.
How is the unit connected?
The main current circuit uses a busbar connection, while the auxiliary and control circuits use screw-type terminals.
What mounting and clearance details should be retained in a quotation?
Use screw fixing. Required side-by-side spacing is 100 mm upwards, 5 mm at the side and 75 mm downwards.
