Siemens SIRIUS 3RW44 Soft Starter - 113A, 55kW
Siemens SIRIUS 3RW44 soft starter, 113A (55kW) standard, 196A (110kW) inside-delta. Phased-out.
The Siemens 3RW4434-6BC44 is a high-performance SIRIUS soft starter designed for smooth starting of medium-voltage and large three-phase motors. Under standard conditions (400V, 40°C), it is rated for 113 A and 55 kW. In an inside-delta configuration, it can handle up to 196 A and 110 kW. The control voltage range is 200-460 V AC, and it features screw terminals for easy connection.
This soft starter is utilized in applications requiring gentle motor acceleration, such as large pumps, fans, compressors, and heavy-duty conveyor systems, to minimize mechanical stress and electrical inrush currents. It is important to note that this is a phased-out product, with the SIRIUS 3RW5 series, specifically the 3RW5534-6HA14, being its preferred successor.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RW4434-6BC44. Secure this component while available and consider us for your future automation needs, providing reliable surplus parts for your operational continuity.
| Type | SIRIUS 3RW44 |
| Standard Rating (400V, 40°C) | 113 A, 55 kW |
| Inside-Delta Rating | 196 A, 110 kW |
| Control Voltage | 200-460 V AC |
| Terminals | Screw |
| Status | Phased-out |