Siemens 3RW4456-6BC44
MPN3RW4456-6BC44
SIRIUS soft starter Values at 400 V, 40 °C standard: 780 A, 450 kW Inside-delta: 1351 A, 800 kW 200-460 V AC, 230 V AC Screw terminals!!! Phased-out product!!! Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5554-6HA14<<
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Soft starter |
| Product brand name | SIRIUS |
Power & Motor Rating
| Parameter | Value |
|---|---|
| Rated operational current at 40 °C | 1 351A |
| Rated operational current at 50 °C | 1 200A |
| Rated operational current at 60 °C | 1 065A |
| Rated insulation voltage | 690V |
| Minimum settable current (% of Ie) | 8% |
Control & Connection
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Rated voltage at 50 Hz | 230V |
| Rated voltage at 60 Hz | 230V |
| Main circuit terminal type | busbar connection |
| Auxiliary contact rating (UL) | B300 / R300 |
| Control supply voltage tolerance, AC 50 Hz (max.) | 10% |
| Control supply voltage tolerance, AC 50 Hz (min.) | -15% |
| Control supply voltage tolerance, AC 60 Hz (max.) | 10% |
| Control supply voltage tolerance, AC 60 Hz (min.) | -15% |
| Control supply frequency tolerance (max.) | 10% |
| Control supply frequency tolerance (min.) | -10% |
| Operating frequency tolerance (max.) | 10% |
| Operating frequency tolerance (min.) | -10% |
| Operating voltage tolerance, inside-delta (max.) | 10% |
| Operating voltage tolerance, inside-delta (min.) | -15% |
Protection & Features
| Parameter | Value |
|---|---|
| Motor overload protection | Yes |
| Thermistor motor protection | Yes |
| Adjustable current limitation | Yes |
| Inside-delta connection | Yes |
| Intrinsic device protection | Yes |
| Pollution degree | 3, acc. to IEC 60947-4-2 |
Mechanical
| Parameter | Value |
|---|---|
| Height | 640mm |
| Width | 510mm |
| Depth | 290mm |
| Mounting position | with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back |
| Fastening method | screw fixing |
| Mounting clearance, top | 100mm |
| Mounting clearance, bottom | 75mm |
| Mounting clearance, side | 5mm |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | 60°C |
MPN
3RW4456-6BC44