VFD007B21A – Delta AC Inverter | 0.75kW | 220V | New In Box

Product Overview

The Delta VFD007B21A AC Inverter is a compact and reliable variable frequency drive designed for precise motor speed and torque control in light to medium-duty industrial applications. With a rated power of 0.75kW (1 HP) and 220V class input/output, this inverter delivers stable performance, high efficiency, and flexible motor control in space-saving installations.

This unit is brand new, factory sealed in original packaging, making it ideal for OEM integration, system upgrades, and replacement projects.

Key Features & Benefits

Rated Power: 0.75kW (1 HP) – Optimized for small motors and compact machinery
220V Class Voltage – Compatible with common industrial single-phase and three-phase environments
High Control Accuracy – Precise speed regulation for smooth motor operation
Compact Design – Saves panel space in control cabinets
Built-in Protection Functions – Enhances system reliability and motor lifespan
Delta Quality & Reliability – Trusted global brand in industrial automation

Technical Specifications

Manufacturer: Delta Electronics
Model: VFD007B21A
Series: Delta VFD-B
Power Rating: 0.75 kW (1 HP)
Input Voltage: 200–240 VAC
Output Voltage: 3-phase 0–240 VAC
Input Frequency: 50 / 60 Hz
Output Frequency Range: 0.1 – 400 Hz
Output Current: Approx. 4.2 A
Control Method: V/F control
Overload Capacity:
- 150% of rated current for 60 seconds
Motor Type: Induction motor (IM)
Cooling Method: Forced air cooling
Installation: Panel mount
Protection Rating: IP20
Condition: New In Box

Typical Applications

Conveyors and material handling systems
Pumps and fans
Packaging machinery
Small CNC and automation equipment
HVAC auxiliary motor control
OEM machinery integration

Why Choose Delta VFD007B21A?

The VFD007B21A offers an excellent balance of performance, reliability, and cost efficiency. Its wide frequency range and strong overload capacity allow smooth motor startup, stable low-speed operation, and extended motor life. It is a proven solution for customers seeking a compact, dependable inverter for everyday industrial use.

Quality & Shipping

100% Brand New & Original Delta Product
Factory-sealed packaging
Fully inspected before shipment

Fast global delivery available

Delta VFD-B Series Power Selection Comparison

Model Comparison Table

Specification	VFD005B21A	VFD007B21A	VFD015B21A
Rated Motor Power	0.4 kW (0.5 HP)	0.75 kW (1 HP)	1.5 kW (2 HP)
Input Voltage	200–240 VAC	200–240 VAC	200–240 VAC
Input Phase	Single / Three Phase	Single / Three Phase	Single / Three Phase
Output Voltage	3-Phase 0–240 VAC	3-Phase 0–240 VAC	3-Phase 0–240 VAC
Output Frequency Range	0.1 – 400 Hz	0.1 – 400 Hz	0.1 – 400 Hz
Rated Output Current	~2.3 A	~4.2 A	~7.5 A
Control Method	V/F Control	V/F Control	V/F Control
Overload Capacity	150% / 60 sec	150% / 60 sec	150% / 60 sec
Protection Rating	IP20	IP20	IP20
Cooling Method	Forced Air	Forced Air	Forced Air
Mounting	Panel Mount	Panel Mount	Panel Mount
Series	Delta VFD-B	Delta VFD-B	Delta VFD-B

Note: Specifications may vary slightly depending on firmware and production batch. Always verify with motor nameplate data before selection.

Quick Power Selection Guide

✅ VFD005B21A (0.4 kW / 0.5 HP)
Best for small motors, light-duty applications such as small fans, mini conveyors, and lab equipment.
✅ VFD007B21A (0.75 kW / 1 HP)
Ideal for most small industrial machines, offering a strong balance between power, size, and cost.
✅ VFD015B21A (1.5 kW / 2 HP)
Recommended for higher load applications requiring stronger torque, such as pumps, compressors, and heavier conveyors.

Selection Tips

Choose the inverter based on motor rated current, not only power (kW / HP)
Consider startup load and overload margin
Ensure the input power supply matches your site condition
Allow sufficient cooling space inside the control cabinet
📊 Power vs Application Selection Guide

Delta VFD-B Series (220V Class)

This visual guide helps users quickly select the right Delta VFD-B inverter model based on motor power rating and typical application load.

🔹 Application Mapping by Power Range

VFD005B21A — 0.4 kW (0.5 HP)

Recommended Applications:
- Mini fans
- Small conveyors
- Laboratory and testing equipment
Load Characteristics:
Light-duty, low inertia, continuous operation

VFD007B21A — 0.75 kW (1 HP)

Recommended Applications:
- Conveyors
- Packaging machines
- Small pumps and feeders
Load Characteristics:
Medium-duty, frequent start/stop, stable torque requirement
✅ Most commonly selected model

VFD015B21A — 1.5 kW (2 HP)

Recommended Applications:
- Pumps
- Compressors
- Heavy-duty conveyors
Load Characteristics:
Higher inertia, higher starting torque, heavier mechanical load

⚙️ Engineering Selection Notes
- Always size the inverter based on motor rated current, not power alone
- For applications with high starting torque or frequent acceleration, select one size higher
- Ensure sufficient cooling and panel ventilation
- Confirm input power condition (single-phase or three-phase 220V)

VFD007B21A Delta Inverter 0.75KW 220V VFD007B21A New In Box