Siemens SIRIUS 3RW4036 Soft Starter - 45A, 22 kW, 200-480V AC
Siemens SIRIUS soft starter for 3-phase motors, 45A.
The Siemens SIRIUS 3RW4036-1TB04 is a soft starter designed to smoothly initiate and stop three-phase motors, reducing mechanical stress and electrical inrush current. This unit is rated for 45 Amps and supports motor ratings up to 22 kW at 400 V. It operates with a control voltage range of 200-480 V AC and a separate control power input of 24 V AC/DC. The soft starter includes integrated thermistor motor protection for safeguarding the motor against overheating.
This soft starter is ideal for applications requiring controlled motor acceleration, such as conveyors, pumps, fans, and compressors, where frequent start-stop cycles or high starting torques can cause damage. It helps extend the life of motors and mechanical components by minimizing shock loads.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens SIRIUS 3RW4036-1TB04 soft starter. We provide reliable, tested components to ensure your motor control applications are efficient and protected, offering quality surplus parts to keep your operations running smoothly.
| Current Rating | 45 A |
| Motor Power | 22 kW @ 400 V |
| Control Voltage | 200-480 V AC |
| Control Power | 24 V AC/DC |
| Motor Protection | Thermistor |
| Terminals | Screw terminals |