Features:
- SIRIUS 3RW40 soft starter in device size S12 for controlled starting of standard-circuit three-phase motors.
- Rated 356 A at 40 °C and 200 kW at 400 V, with a 200–460 V AC main circuit and 230 V AC control supply.
- Integrated bypass contacts, adjustable current limitation, electronic motor-overload protection and intrinsic device protection.
The
Siemens 3RW4075-6BB44 is configured for controlled motor starting where reduced starting current and mechanical stress are required.
Busbar connections serve the main circuit, while screw-type terminals are provided for auxiliary and control circuits; external reset supports control-panel integration.
Siemens records this soft starter as discontinued and identifies 3RW5075-6AB14 as the preferred successor. Motor rating, voltage, control supply, mounting space and protection requirements should be confirmed before replacement.
Availability is subject to Apter Power's current inventory and sourcing confirmation.
Siemens 3RW4075-6BB44 SIRIUS S12 Soft Starter Manuals, Datasheets, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Siemens 3RW4075-6BB44 SIRIUS S12 Soft Starter Specs
General
- ManufacturerSiemens
- Model3RW4075-6BB44
- ConditionNew Original ready stock
- Product FamilySIRIUS 3RW40 Soft Starters
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Motor-starting applications
- Standard circuits: controlled starting of three-phase motors.
- Soft acceleration: reduced starting torque through adjustable ramp settings.
- Current limitation: adjustable control of motor starting current.
- Fixed-speed operation: the integrated bypass carries current after ramp-up.
Integrated functions
- Integrated bypass contact system.
- Thyristor-based soft-start control.
- Adjustable current limitation.
- Electronic motor-overload protection.
- Intrinsic device protection.
- External reset function.
Installation data
- Main circuit: busbar connection.
- Auxiliary and control circuits: screw-type terminals.
- Device dimensions: 160 × 230 × 278 mm (W × H × D).
- Ambient range: -25 to +60 °C, with rated-current derating above 40 °C.
- Front protection: IP00 or IP20 when the cover is fitted.