Delta VFD550ED43S Variable Frequency Drive
Delta VFD550ED43S Variable Frequency Drive is engineered for high-capacity industrial motor control applications requiring reliable speed regulation and stable operational performance. This Delta 75HP VFD supports 55 kW motor systems using a three-phase 380–480 VAC input supply and delivers 128 A rated output current for demanding automation equipment. The drive includes fan cooling with an IP20 enclosure suitable for panel-mounted industrial installations handling heavy production workloads. Manufactured by Delta, this model belongs to the industrial drive category and is part of the ED drive family used across industrial automation and motor control systems.
| Brand | Delta |
| Product | VFD |
| Model Number | VFD550ED43S |
Delta VFD550ED43S Variable Frequency Drive - Technical Specifications
| Specification | Value |
|---|---|
| Input Rated Voltage (V) | Three-phase 380 ~ 480 |
| Applicable Motor Output ( kW) | 55 kW |
| Applicable Motor Output (HP) | 75 HP |
| Output Capacity (kVA) | 96.4 kVA |
| Output Current (A) | 128 A |
| Cooling Method | Fan cooling |
| IP Level | IP20 |
| Control Method | V / F, VF+PG, SVC, FOC+PG, FOC+PM |
| Storage/Transportation Temperature | -20 ºC ~ 60 ºC |
| Ambient Humidity | Below 90% RH (non-condensing) |
| V/F Pattem | Adjustable V / F curve using 4 independent points |
| Version Type | S |
| Input Frequency Tolerance | ±5% (47 ~ 63) |
| Voltage Tolerance | ±10% (342 ~ 528) |
| Net Weight (kg) | 50 Kg |
The DELTA VFD550ED43S Variable Frequency Drive is commonly used in large industrial machinery requiring controlled motor speed and dependable torque handling under demanding production conditions. Applications involving compressors, heavy conveyors, pumps, and processing equipment benefit from smoother acceleration and stable machine response during varying operational loads. Its 55 kW capacity supports automation systems operating with continuous heavy-duty production requirements.
Large factory control panels frequently integrate the VFD550ED43S to improve process efficiency while reducing electrical and mechanical stress caused by direct motor startup. The drive supports balanced motor operation across extended production cycles and helps maintain controlled equipment behavior during fluctuating process demands. Its cooling arrangement and electrical design are suitable for industrial systems requiring reliable three-phase drive management.
For automation engineers selecting a Delta 75HP VFD, the VFD550ED43S provides a practical combination of motor control precision, installation flexibility, and industrial reliability. The model supports both new automation projects and replacement requirements involving high-capacity three-phase AC motor systems. Within the Delta drive category, it remains a dependable solution for industrial applications requiring stable variable frequency operation and controlled motor performance.
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