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Mfr. Part #: I55AP311F00711K00S
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The Lenze i550 Protec I55AP311F00711K00S is a durable 15 HP (11 kW) decentralized frequency inverter designed for demanding industrial environments. Featuring NEMA 4X / IP66 protection, it is ideal for direct wall or motor-mounted installations, offering robust performance even in harsh conditions. Equipped with an integrated LCD keypad for easy local control and diagnostics, it supports advanced sensorless vector motor control. Optional Safe Torque Off (STO) functionality enhances safety compliance, while adherence to the Ecodesign Directive EN 50598-2 ensures energy-efficient operation across various applications such as conveyors, hoists, pumps, and packaging machinery.
Key Features:
- 15 HP (11 kW) decentralized frequency inverter with NEMA 4X / IP66 protection
- 3-phase 400/480 V AC supply voltage
- Integrated LCD keypad module for local control and diagnostics
- Standard I/O configuration without safety technology or extension box
- Compact design suitable for wall or motor-mounted installations
- Advanced motor control modes including sensorless vector control
- Compliant with Ecodesign Directive EN 50598-2 for energy efficiency
- Optional Safe Torque Off (STO) with SIL 3 and Performance Level e for safety-critical applications
Common Applications:
- Conveyor drives
- Traveling drives
- Winding drives
- Hoist drives
- Extruders
- Packaging machines
- Pumps
- Fans
| Lenze i550 Protec Specifications | |
|---|---|
| Model Number | I55AP311F00711K00S |
| Power Rating | 15 HP (11 kW) |
| Input Voltage | 3-phase 400/480 V AC |
| Protection Class | NEMA 4X / IP66 (Decentralized) |
| Control Interface | Integrated LCD keypad module |
| Motor Control Modes | Sensorless Vector Control |
| Safety Features | Optional Safe Torque Off (STO) SIL 3, Performance Level e |
| Installation | Wall or motor-mounted |
| Compliance | Ecodesign Directive EN 50598-2 |




ID #: 197760