Description
The Delta VFD007EL21A is a compact 0.75 kW (1 HP) Variable Frequency Drive (VFD) from Delta’s versatile VFD-EL series. Designed for single-phase 230 VAC power input, this micro-type AC drive converts standard single-phase mains power into variable frequency 3-phase output to regulate speed and torque for AC induction motors.
Equipped with modern power electronics and advanced microprocessor control, the VFD007EL21A features automatic voltage regulation and energy-saving operational modes. It is an ideal variable speed drive for factory owners, commercial facility managers, and panel builders in Bangladesh seeking an economical, highly efficient inverter to streamline automation and lower energy bills.
Key Features
- Compact Micro-Type Architecture: Space-saving design engineered for easy side-by-side mounting in small control boxes.
- 0.75 kW (1 HP) Capacity: Specially rated for 230 V single-phase input to power 3-phase AC induction motors.
- Automatic Energy Saving: Internal microprocessor automatically adjusts output voltage according to load variations to minimize power loss.
- Precise Speed & Torque Regulation: Delivers smooth motor acceleration/deceleration and steady dynamic torque response.
- Built-in Protection Functions: Features integrated protection against overcurrent, overvoltage, under-voltage, overheating, and overload.
- Easy Parameter Configuration: Features an intuitive digital keypad and straightforward programming parameters for fast setup.
Technical Advantages
- Microprocessor Efficiency: Advanced control algorithms ensure high processing speed and precise frequency modulation.
- Compact Footprint: Reduces control panel space requirements while maintaining high thermal stability.
- Reduced Mechanical Stress: Soft starting eliminates direct-online starting current spikes, protecting motor windings, belts, and bearings.
- Easy Maintenance: Clean terminal layout and straightforward parameter structure allow rapid troubleshooting and minimal downtime.
Applications
- Industrial & Factory Automation: Small conveyors, packaging machines, textile equipment, small agitators, and light machine tools.
- Commercial Systems: Small HVAC blowers, water circulation pumps, exhaust fans, and commercial kitchen ventilation.
- Project Installation: Control cabinet fabrication, OEM machinery manufacturing, and small process automation retrofits.
Why Choose This Product?
- Proven Delta Quality: Worldwide reputation for reliable power electronics, guaranteeing long service life and stable performance.
- Cost-Effective Single-Phase Operation: Allows users to run 3-phase AC motors off standard single-phase 230V lines without expensive phase converters.
- High Energy Efficiency: Automatic power modulation lowers monthly electricity bills for small workshops and commercial facilities.
- Local After-Sales Value: Supported by product authenticity, competitive pricing, and technical support through LOOP Shop in Bangladesh.
Technical Specification Table
| Specification | Details |
| Model | VFD007EL21A |
| Brand | Delta |
| Series | VFD-EL Series |
| Rated Power | 0.75 kW / 1 HP |
| Input Voltage | 1-Phase 230 VAC |
| Output Voltage | 3-Phase 230 VAC |
| Current | Not Available |
| Frequency | Output: 0.1 to 400 Hz |
| Operating Efficiency | High-efficiency micro AC drive with automatic energy saving |
| Protection | Built-in Motor Overload & Drive Thermal Protection |
| Dimension | Not Available |
| Weight | Not Available |
| Operating Temperature | -10°C to 50°C |
| Warranty | Standard Manufacturer Warranty |
Features List
✓ 0.75 kW (1 HP) capacity for 230 V single-phase power input
✓ Compact micro-type design for space-restricted control panels
✓ Automatic voltage control and energy-saving operation
✓ Smooth acceleration and deceleration for motor protection
✓ Integrated overcurrent, overvoltage, and overload protections
✓ Simple keypad interface for quick parameter configuration
✓ Reliable performance for small-scale industrial and commercial motors
Benefits For Customers
- Lowers Electricity Bills: Automatic energy-saving algorithms adjust voltage supply based on motor load to optimize power consumption.
- Enables 3-Phase Motor Use on Single-Phase Power: Converts 1-phase 230 V mains power to run 3-phase 230 V motors smoothly.
- Extends Motor Equipment Lifespan: Soft start/stop control reduces mechanical shocks on gears, couplings, and motor shafts.
- Suitable for Bangladesh Operating Environment: Rugged micro architecture resists ambient dust and thermal variations in Bangladesh facilities.
Installation & Maintenance Guide
Installation Requirements:
- Mount the drive vertically on a flat, vibration-free surface inside a ventilated electrical enclosure.
- Maintain adequate top and bottom clearance (at least 100 mm) for proper air circulation over the heat sink.
- Wire single-phase 230 VAC power input lines to L1/L2 terminals and connect output motor lines to U/V/W terminals.
- Route control cables separately from main high-voltage power wiring using shielded wire.
Maintenance Tips:
- Regularly clean heat sink fins using clean, dry compressed air to avoid dust buildup.
- Periodically inspect terminal screw connections and tighten any loose wiring caused by thermal expansion or vibration.
- Keep cabinet ventilation slots and air filters clean to maintain optimal operating temperatures.
Safety Instructions:
- Always disconnect main input AC power before conducting wiring, terminal checks, or maintenance work.
- Wait at least 10 minutes after turning off the power to allow internal DC bus capacitors to discharge safely before touching internal components.
- Ensure the drive’s ground terminal is properly bonded to the earth ground before supplying power.
Frequently Asked Questions (FAQ)
Q: What is the price of Delta VFD007EL21A VFD in Bangladesh?
A: The price of the Delta VFD007EL21A in Bangladesh varies based on current import tariffs and stock levels. Please check the product page on LOOP Shop or contact our customer support for an updated price quote.
Q: Where can I buy original Delta VFD007EL21A in Bangladesh?
A: You can purchase genuine Delta VFD007EL21A 0.75 kW AC drives directly online from LOOP Shop (loopshop.com.bd) with fast delivery across Bangladesh.
Q: What warranty does this product have?
A: The Delta VFD007EL21A comes with standard manufacturer warranty coverage against operational defects, supported by LOOP Shop customer service.
Q: Is this VFD suitable for Bangladesh climate?
A: Yes, featuring a compact micro enclosure with robust thermal dissipation, it is built to operate reliably in Bangladesh’s warm and humid environment.
Q: How to install this product?
A: Mount the drive vertically in a cabinet, wire 230V single-phase input to the mains terminals and your 3-phase motor to the output terminals, and configure basic parameters using the digital keypad.
Q: Can Delta VFD007EL21A run on single-phase 230V power?
A: Yes, this model is designed for 1-phase 230 VAC power input and provides 3-phase 230 V output for AC motors.
Q: What motor horsepower rating is Delta VFD007EL21A suitable for?
A: It is rated for 0.75 kW or 1 Horsepower (1 HP) 3-phase AC induction motors.
Q: What series does Delta VFD007EL21A belong to?
A: It belongs to the Delta VFD-EL series micro-type compact AC motor drives.
Q: Does this drive feature automatic energy saving?
A: Yes, the built-in microprocessor automatically optimizes voltage output under varying load conditions to save energy.
Q: What protective features are built into this AC drive?
A: It includes built-in protection against motor overload, overcurrent, overvoltage, under-voltage, and overheating.

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