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Delta MVF23 Series

MVF23 Variable-Frequency Drive
A compact and high-performing drive for medium- and low-power motors, offering efficient speed control for fans, pumps, and compressors. Features include 3.3–6.6 kV voltage range, >98.5% efficiency, and a user-friendly 7-inch touch screen. Ideal for easy installation and maintenance.

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Description

Product Overview
The MVF23 series is a highly integrated and high-performing variable-frequency device designed for medium- and low-power motors. It offers excellent variable-speed control for fans, pumps, and compressors, and features a compact design that minimizes installation space.

Features & Benefits

  • System Voltage: 3.3–6.6 kV ±10%
  • Motor Shaft Power Range: 135–2115 kW
  • Installation: No rear or side entry required for repairs; suitable for wall installation
  • Cable Entry: Possible from the top or bottom

Specifications

  • Control Power: Single-phase 220 VAC; 5 kVA
  • System Efficiency: >98.5% (at rated; excluding transformer)
  • Power Factor: >0.96 (at rated)
  • Harmonics: <5% (at rated); compliant with IEEE519-1992 and GB/T 14549-93
  • Overload Capacity: 110% for 1 min/10 min
  • IP Rating: IP31
  • Cooling Method: Forced air cooling
  • Control Method: V/F control; vector control with speed sensor (SVC); sensorless vector control (SLVC)
  • Control Functions: Acceleration/deceleration speed selection, frequency skipping, automatic voltage regulation (AVR), flying start, field weakening, adaptive deceleration, input undervoltage derating, low-voltage ride through, automatic restart, multi-motor parameter storage
  • Human-Machine Interface: 7 inches, multi-language touch screen
  • Communication Method: Modbus RTU
  • Fitted Motor Types:
    • Induction motor: Squirrel cage motor and wound motor
    • Synchronous motor: Brushed excited motor

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