| Product Model |
3RW4443-6BC44 |
| Brand |
Siemens |
| Product Series |
SIRIUS |
| Product Type |
Soft Starter (Phased-out Product) |
| Preferred Successor Model |
3RW5543-6HA14 |
| Operating Voltage Range |
200-460 V AC (standard/inside-delta circuit) |
| Control Supply Voltage |
230 V AC (50/60 Hz) |
| Rated Operational Current (40°C) |
203 A (standard circuit); 352 A (inside-delta circuit) |
| Rated Power (40°C, 400V) |
110 kW (standard circuit); 200 kW (inside-delta circuit) |
| Rated Power (40°C, 230V) |
55 kW (standard circuit); 110 kW (inside-delta circuit) |
| Operating Frequency |
50-60 Hz (±10% tolerance) |
| Protection Rating |
IP00 (front); IP20 (with box terminal/cover) |
| Dimensions (W×H×D) |
210 mm × 230 mm × 298 mm |
| Mounting Position |
Vertical surface (±90° rotatable, ±22.5° front/back tiltable) |
| Key Features |
Integrated bypass contact system, motor overload protection, thermistor evaluation, adjustable current limitation, inside-delta circuit support |
| Auxiliary Contacts |
3×NO, 1×CO, 0×NC |
| Max Installation Altitude |
5000 m |
| Operating Ambient Temperature |
Max 60°C (derating at 40°C); Storage: -25°C to +80°C |
| Main Terminal Conductor Cross-Section |
70-240 mm² (finely stranded); 95-300 mm² (stranded) |
| Approvals |
CE, CCC, KC, UL/CSA (B300/R300 auxiliary contact rating) |