Siemens 3TF3511-0BB4 Contactor - Size 2, 18.5kW
Siemens 3TF3511-0BB4 Size 2 Contactor, 18.5kW, DC 24V Coil.
The Siemens 3TF3511-0BB4 is a Size 2, 3-pole contactor rated for AC-3 duty at 18.5kW (400/380V). This contactor operates on a DC coil voltage of 24V and is designed for DC operation. It is supplied without an auxiliary contact, but is compatible with side-mounted blocks such as the 3TY75611A, allowing for flexible configuration of control circuits.
This IEC contactor is essential for switching power circuits, particularly for starting and stopping three-phase motors and other high-power electrical loads. It is widely applied in industrial automation, power distribution, building services, and machinery control where reliable switching is paramount.
Stanlo Automation, a veteran-owned surplus parts distributor, ensures you have access to quality components like the Siemens 3TF3511-0BB4. We help keep your operations running by providing necessary parts for motor control and power switching applications.
| Manufacturer | Siemens |
| Part Number | 3TF3511-0BB4 |
| Type | Contactor |
| Size | 2 |
| Poles | 3 |
| Duty Rating | AC-3 |
| Power Rating | 18.5kW (400/380V) |
| Coil Voltage | 24V DC |
| Auxiliary Contacts | No built-in, compatible with side-mounted |