Product information
Overview
Key Features
- Rated operational current: 970 A at 40 °C; 850 A at 50 °C and 760 A at 60 °C.
- Inside-delta performance: 1 680 A rated operational current at 40 °C for 3-phase motors in an inside-delta circuit.
- Operating voltage and power: 200 … 460 V rated operating voltage; at 400 V, the rated motor power is 560 kW in the standard circuit and 1 000 kW in the inside-delta circuit.
- Motor protection and control: Has intrinsic device protection, motor overload protection, thermistor motor protection evaluation, external reset and adjustable current limitation.
- Connections and mounting: Uses busbar connection for the main current circuit and screw-type terminals for auxiliary and control circuits; screw fixing; vertical mounting surface with the stated rotation and tilt limits.
- Protection and bypass: Has an integrated bypass contact system and IP00 protection on the front according to IEC 60529.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Rated operational current at 40 °C | 970 A |
| Inside-delta rated operational current at 40 °C | 1 680 A |
| Rated operating voltage | 200 … 460 V |
| Rated motor power at 400 V, standard circuit | 560 kW |
| Rated motor power at 400 V, inside-delta circuit | 1 000 kW |
| Control supply | 230 V AC at 50 Hz and 60 Hz |
| Main current connection | Busbar connection |
| Auxiliary and control connection | Screw-type terminals |
| Mounting | Screw fixing; vertical mounting surface, +/-90° rotatable and +/- 22.5° tiltable to the front and back |
| Front protection | IP00 according to IEC 60529 |
| Product lifecycle | Start of final year of support |
Frequently Asked Questions
What is the rated operational current of Siemens 3RW4458-6BC44?
The rated operational current is 970 A at 40 °C, 850 A at 50 °C and 760 A at 60 °C.
What operating voltage and control supply does this soft starter use?
The rated operating voltage is 200 … 460 V. The control supply is 230 V AC at 50 Hz and 60 Hz.
How is the 3RW4458-6BC44 connected and mounted?
The main current circuit uses a busbar connection, while the auxiliary and control circuits use screw-type terminals. Mounting is by screw fixing on a vertical mounting surface, with +/-90° rotation and +/- 22.5° front-and-back tilt.
What configuration details should I provide for a quotation?
Provide the required quantity, destination and requested date so the configuration can be checked for your MRO or project requirement.
