Description
Product Description
The Siemens 6SE7031-5ES87-1FE0 is a heavy-duty output reactor designed for SINAMICS and SIMOVERT MASTERDRIVES drive systems. Engineered for installation between the inverter and motor, this three-phase reactor reduces PWM-related voltage spikes, minimizes motor insulation stress, suppresses electromagnetic interference (EMI), and improves overall system reliability. It is rated for 380–460V AC operation, supports output frequencies up to 120Hz, and is designed for a 146A current rating, making it suitable for high-power industrial drive applications.
The output reactor helps extend motor life, reduce bearing currents, and enable longer motor cable lengths while improving electromagnetic compatibility (EMC). It is ideal for demanding motion-control systems used in CNC machinery, robotics, material handling equipment, packaging systems, conveyors, and industrial manufacturing plants.
Key Features
- Genuine Siemens SIMOVERT MASTERDRIVES output reactor
- Rated current: 146A
- Operating voltage: 380–460V AC
- Maximum output frequency: 120Hz
- Pulse frequency: 3kHz
- Three-phase reactor design
- Reduces motor voltage peaks and cable reflections
- Improves EMC performance
- Minimizes motor bearing currents
- Extends motor insulation life
- Supports long motor cable installations
- Compatible with SINAMICS and SIMOVERT MASTERDRIVES drive systems
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Siemens |
| Part Number | 6SE7031-5ES87-1FE0 |
| Product Family | SIMOVERT MASTERDRIVES / SINAMICS |
| Product Type | Output Reactor |
| Phase Configuration | 3-Phase |
| Rated Voltage | 380–460V AC |
| Rated Current | 146A |
| Maximum Output Frequency | 120Hz |
| Pulse Frequency | 3kHz |
| Installation | Between Drive and Motor |
| Product Family Category | Motor Reactors for Booksize Format |
| Weight | Approx. 20.8–24 kg |
| Country of Origin | Czech Republic |
| Product Lifecycle | PM300 – Active Product |
| Condition | New / Original Siemens Product |
Applications
- SIMOVERT MASTERDRIVES Drive Systems
- SINAMICS Drive Systems
- High-Power Servo Systems
- CNC Machine Tools
- Robotics and Automation
- Material Handling Equipment
- Conveyor Systems
- Packaging Machinery
- Printing Equipment
- Industrial Motion Control Installations
Benefits
- Protects motors from damaging PWM voltage spikes
- Extends motor insulation lifespan
- Reduces EMI and electrical noise
- Improves system reliability and uptime
- Supports longer motor cable distances
- Minimizes bearing-current-related motor damage
- Enhances drive performance in high-power applications
- Seamlessly integrates with Siemens drive architectures





