Delta VFD037E43A Variable Frequency Drive
Delta VFD037E43A Variable Frequency Drive is designed for controlled motor operation in industrial automation systems. It supports 3.7 kW and 5 HP applications with a stable three-phase input range of 380V to 480V at 50/60 Hz. Commonly used as a Delta 3.7 kW VFD, this drive is suitable for machines that require efficient speed control and stable torque performance. It delivers 8.5 A output current with 6.8 kVA capacity, supporting consistent motor operation across varying load conditions. Its fan cooling design enables continuous operation, while the IP20 enclosure allows safe installation inside control panels. Manufactured by Delta automation, it is part of the industrial VFD solutions and the E series drive platform used in automation environments.
| Brand | Delta |
| Product Type | VFD |
| Model Number | VFD037E43A |
Delta VFD037E43A Variable Frequency Drive - Technical Specifications
| Specification | Value |
|---|---|
| Applicable Motor Output ( kW) | 3.7 kW |
| Applicable Motor Output (HP) | 5 HP |
| Input Voltage / Frequency | 460V, Three-phase, 380-480V, 50/60Hz |
| Output Current (A) | 8.5 A |
| Output Capacity (kVA) | 6.8 kVA |
| Cooling Method | Fan Cooling |
| IP Level | IP20 |
| Pollution Degree | 2 |
| Storage/Transportation Temperature | 20’C~60’C |
| Ambient Humidity | Below 90% RH (non-condensing) |
| V/F Pattem | SPWM (Sinusoidal Pulse Width Modulation) Control (V/F or sensorless vector control) |
| Input Frequency Tolerance | ±5% (47-63Hz) |
| Voltage Tolerance | ±10% (342-528V) |
| Version Type | A: Standard drive |
| Net Weight | 1.9 kg |
The Delta VFD037E43A is built to deliver precise motor speed control in industrial applications where performance consistency is essential. It is commonly applied in conveyors, pumps, fans, and machine systems that require controlled speed variation and efficient power usage. This drive maintains stable motor behavior by adjusting output frequency based on load conditions, helping reduce mechanical wear and improve overall system efficiency.
With a 3.7 kW capacity, the drive supports smooth acceleration and controlled deceleration, making it suitable for applications that depend on stable motor response. The fan cooling system helps regulate internal temperature during extended operation, ensuring reliability across continuous working cycles. Its panel-ready design simplifies installation within electrical cabinets, supporting clean wiring layouts and effective space utilization in industrial setups.
The E series platform is engineered to operate under varying electrical conditions while maintaining consistent output and predictable control. It supports long-term use in factory environments where stable motor performance is required. This makes the Delta VFD037E43A a practical solution for applications that demand efficient control, durability, and dependable operation in day-to-day industrial processes.
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