---
product_id: 455477990
title: "DELTA EL Series VFD VFD004EL21A"
brand: "delta"
price: "HK$559"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/455477990-delta-el-series-vfd-vfd004el21a
store_origin: HK
region: Hong Kong
---

# 0.1~600Hz output frequency RS-485 Modbus communication Built-in EMI filter & PID control DELTA EL Series VFD VFD004EL21A

**Brand:** delta
**Price:** HK$559
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your motor control game with precision and power!

## Quick Answers

- **What is this?** DELTA EL Series VFD VFD004EL21A by delta
- **How much does it cost?** HK$559 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/455477990-delta-el-series-vfd-vfd004el21a)

## Best For

- delta enthusiasts

## Why This Product

- Trusted delta brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Connectivity:** RS-485 interface with Modbus protocol ensures smooth integration into your industrial network.
- • **Noise-Free Operation:** Built-in EMI filter minimizes electrical interference for reliable, clean power delivery.
- • **Adaptive Motor Efficiency:** 3-point adjustable V/f curve and PID feedback optimize motor response and energy use.
- • **Plug-and-Play Reliability:** Engineered by Delta for robust, maintenance-friendly operation in demanding environments.
- • **Precision Frequency Control:** Seamlessly adjust output from 0.1 to 600Hz for ultimate motor performance.

## Overview

The DELTA EL Series VFD004EL21A is a versatile variable frequency drive offering a wide output frequency range (0.1 to 600Hz), advanced RS-485 Modbus communication, built-in EMI filtering, and PID feedback control with adjustable V/f curves—designed to deliver efficient, reliable motor control for professional industrial applications.

## Description

DELTA EL Series VFD VFD004EL21A

## Features

- Output frequency: 0.1 ~ 600Hz
- Use RS-485 communication interface (RJ-45) with Modbus protocol
- Built-in EMI filter (for models 230V 1-phase and 460V 3-phase)
- Built-in PID feedback control,3 points adjustable V/f curve

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Delta |
| Manufacturer | DELTA |
| Model | VFD004EL21A |
| Item model number | VFD004EL21A |
| Number of items | 1 |
| Batteries Included | No |
| Batteries Required | No |
| Manufacturer | DELTA |

## Images

![DELTA EL Series VFD VFD004EL21A - Image 1](https://m.media-amazon.com/images/I/3188Zutk8bL.jpg)

## Frequently Bought Together

- DELTA EL Series VFD VFD004EL21A
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- SanDisk Ultra Flair 64GB, USB 3.0, Flash Drive, Upto 150MB/s R, Pendrive, Metal, 5Y Warranty (SDCZ73-064G-I35)

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**Shop now:** [https://www.desertcart.hk/products/455477990-delta-el-series-vfd-vfd004el21a](https://www.desertcart.hk/products/455477990-delta-el-series-vfd-vfd004el21a)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-09*