Delta VFD550CP43S-21 Variable Frequency Drive
Delta VFD550CP43S-21 Variable Frequency Drive is designed for industrial automation systems requiring high-capacity motor control with dependable operational stability. This Delta 55kW VFD supports 75 HP motor applications using a three-phase 380–480 VAC input supply and delivers 110 A rated output current for controlled machine performance. The drive uses fan cooling with an IP20 enclosure suitable for electrical cabinet integration in industrial automation environments. Manufactured by Delta, this model belongs to the industrial drive systems category and is part of the CP2000 Series used across industrial motor automation applications.
| Brand | Delta |
| Product | VFD |
| Model Number | VFD550CP43S-21 |
Delta VFD550CP43S-21 Variable Frequency Drive - Technical Specifications
| Specification | Value |
|---|---|
| Input Voltage / Frequency | 460V, Three-Phase AC 380V~480V(-15%-+10%),50/60Hz |
| Output Capacity (kVA) Normal Duty | 88 kVA |
| Output Current (A) Normal Duty | 110 A |
| Applicable Motor Output (kW) Normal Duty | 55 kW |
| Applicable Motor Output (HP) Normal Duty | 75 HP |
| Cooling Method | Fan Cooling |
| Efficiency (%) | 97 |
| IP Level | IP20 |
| NEMA Protection Level | NEMA 1 |
| Storage/Transportation Temperature | -25ºC ~ +70ºC |
| Braking Chopper | Optional Braking Chopper |
| Control Method | Pulse Width Modulation (PWM) |
| Installation Type | Wall-Mounting |
| V/F Curve | 4 point adjustable V / F curve and square curve |
| Input Frequency Tolerance | 47~63Hz |
| Voltage Tolerance | 232~528Vac |
The DELTA VFD550CP43S-21 Variable Frequency Drive is commonly used in automation equipment where stable motor regulation improves operational reliability and production efficiency. Applications involving conveyors, pumps, compressors, ventilation systems, and heavy-duty process machinery benefit from smooth acceleration and dependable motor control during continuous industrial operation. Its 55kW drive capability supports demanding automation systems requiring stable performance under varying load conditions.
Automation panels integrating the VFD550CP43S-21 can improve motor performance while reducing electrical stress caused by direct startup conditions. The drive supports balanced machine operation across repeated production cycles and helps maintain stable automation performance under changing production demands. Its fan cooling structure and cabinet-friendly design are suitable for industrial environments requiring dependable thermal management and organized drive installation.
For automation engineers selecting a Delta 55kW VFD, the VFD550CP43S-21 provides a practical combination of installation flexibility, dependable motor control, and industrial reliability. The model supports both new automation projects and replacement requirements involving industrial motor systems. Within the Delta drive category, it remains a suitable solution for applications requiring controlled variable frequency operation in industrial automation environments.
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