SCHNEIDER ATV312HU55S6 Variable Speed Drive

Product Description

SCHNEIDER ATV312HU55S6 is an Altivar 312 Variable Frequency Drive (VFD / Inverter) designed for controlling three-phase asynchronous motors in industrial automation applications. It provides adjustable motor speed control, energy-saving operation, and reliable motor protection functions. This model is rated for 5.5 kW (7.5 HP) motors with a 525…600 V three-phase power supply.

Specifications

• Brand: SCHNEIDER ELECTRIC
• Model: ATV312HU55S6
• Series: Altivar 312
• Product Type: Variable Speed Drive / AC Drive / Frequency Inverter
• Application: Three-phase asynchronous motors
• Rated Motor Power: 5.5 kW
• Motor Power: 7.5 HP
• Rated Supply Voltage: 525…600 V AC
• Power Supply Phase: 3-phase
• Rated Apparent Power: 15 kVA
• Output Current: Approx. 13.5 A (60 s transient current)
• Input Current:
  • 16.2 A at 525 V
  • 14.1 A at 600 V
• Frequency: 50/60 Hz
• Control Method:
  • Sensorless flux vector control
  • PWM motor control
  • V/F control
• Speed Range: 1…50
• Communication: Modbus RTU (built-in)
• Display: 4-digit LED display
• Mounting: Wall mounting with heatsink
• Protection Functions:
  • Motor overload protection
  • Short circuit protection
  • Overvoltage / undervoltage protection
  • Thermal protection

Advantages & Features

• Precise motor speed and torque control
• Supports sensorless vector control for improved performance
• Compact design saves control cabinet space
• Built-in Modbus communication for automation integration
• Easy parameter setup through LED keypad
• Suitable for simple and general-purpose machines
• Provides reliable motor protection and fault monitoring
• Compatible with Schneider Altivar automation systems

Applications

• Conveyor systems
• Pumps and fans
• Packaging machinery
• Material handling equipment
• Machine tools
• Textile machinery
• Industrial automation equipment
• HVAC auxiliary drives

Notes

• Confirm motor voltage and rated current before installation
• Ensure input power supply matches 525–600V three-phase specification
• Set motor parameters according to the motor nameplate
• Use appropriate circuit protection devices upstream
• Do not connect single-phase power supply to this model
• This model has been discontinued by Schneider Electric; the recommended replacement is Altivar Machine ATV320U55S6C.