Siemens 3RW4073-6BB35 Soft Starter 500kW 400VAC SIRIUS 3RW40 Motor Control
Siemens · Drives & Motor Control
Description The Siemens 3RW4073-6BB35 is a high-capacity soft starter designed for controlled motor starting and stopping in heavy industrial applications. It supports motors up to 500 kW at 400 VAC and reduces mechanical stress and electrical inrush during startup. This unit is ideal for large-scale systems requiring reliable motor protection and smooth operation. Technical Specifications Condition New/Never Used Surplus Brand Siemens Category Drives Part Number 3RW4073-6BB35 Subcategory Soft Start Series SIRIUS 3RW40 Device Type Soft Starter Rated Power 500 kW Rated Voltage 400 VAC Rated Current 900 A Control Voltage 100–240 VAC/DC Phase 3 Phase Frequency 50/60 Hz Protection Rating IP20 Mounting Type Fixed Mount Operating Temperature -25°C to 60°C Safety Function Safe Torque Off (STO) Weight 19.49 lbs Information About 3RW4073-6BB35 The 3RW4073-6BB35 is part of Siemens’ SIRIUS 3RW40 series, engineered for demanding motor control applications with advanced soft starting technology. It integrates electronic overload protection and controlled ramp-up and ramp-down functions to extend equipment lifespan. The unit features a built-in bypass contactor for improved efficiency during continuous operation. Designed for three-phase systems, it is widely used in industries such as water treatment, mining, and heavy manufacturing where large motors require safe and controlled startup. Key Features: High power capability: Supports motors up to 500 kW for heavy-duty applications Soft start functionality: Reduces inrush current and mechanical stress during startup Integrated bypass contactor: Improves energy efficiency during steady-state operation Advanced protection: Includes electronic overload and motor protection features Wide control voltage range: 100–240 VAC/DC for flexible integration Three-phase operation: Designed for industrial 3-phase motor systems Flexible control options: Supports automatic, manual, and remote reset modes Industrial durability: Suitable for harsh environments and continuous operation The 3RW4073-6BB35 delivers the reliability and precision required for controlled motor starting in heavy industrial applications.
Brand: Siemens · Category: Drives & Motor Control
Key features
- High power capability: Supports motors up to 500 kW for heavy-duty applications
- Soft start functionality: Reduces inrush current and mechanical stress during startup
- Integrated bypass contactor: Improves energy efficiency during steady-state operation
- Advanced protection: Includes electronic overload and motor protection features
- Wide control voltage range: 100–240 VAC/DC for flexible integration
- Three-phase operation: Designed for industrial 3-phase motor systems
- Flexible control options: Supports automatic, manual, and remote reset modes
- Industrial durability: Suitable for harsh environments and continuous operation
Specifications
| Manufacturer part number | 3RW4073-6BB35 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Drives |
| Part Number | 3RW4073-6BB35 |
| Subcategory | Soft Start |
| Series | SIRIUS 3RW40 |
| Device Type | Soft Starter |
| Rated Power | 500 kW |
| Rated Voltage | 400 VAC |
| Rated Current | 900 A |
| Control Voltage | 100–240 VAC/DC |
| Phase | 3 Phase |
| Frequency | 50/60 Hz |
| Protection Rating | IP20 |
| Mounting Type | Fixed Mount |
| Operating Temperature | -25°C to 60°C |
| Safety Function | Safe Torque Off (STO) |
| Weight | 19.49 lbs |
| Product type | Soft Start |
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