Siemens SIRIUS 3RW44 Soft Starter - 18.5kW
Siemens SIRIUS 3RW44 Series Soft Starter.
The Siemens 3RW4422-3BC45 is a SIRIUS soft starter designed for smooth acceleration of three-phase motors. It offers a standard rating of 18.5kW at 500V (29A) and 30kW at 500V when wired inside-delta (50A). This unit operates with a control voltage of 230V AC and is suitable for motor voltages between 400-600V AC. It features spring-type terminals for secure connections.
This soft starter is used in applications requiring controlled motor start-up to reduce mechanical stress and electrical inrush current. It's suitable for pumps, fans, compressors, and conveyors where smooth acceleration is beneficial.
Stanlo Automation, a veteran-owned provider of surplus industrial automation parts, offers the Siemens 3RW4422-3BC45. While this is a phased-out product, we can help you find available stock. Its successor is the SIRIUS 3RW5 series. We are committed to keeping your operations running with reliable surplus components.
| Part Number | 3RW4422-3BC45 |
| Manufacturer | Siemens |
| Series | SIRIUS 3RW44 |
| Type | Soft Starter |
| Standard Rating (500V) | 18.5kW (29A) |
| Inside-Delta Rating (500V) | 30kW (50A) |
| Voltage | 400-600V AC |
| Control Voltage | 230V AC |
| Terminals | Spring-type |
| Status | Phased-out |