1.5 kW Mini VFD, Single to 3 Phase, Non-Enclosure

$161.55

| 0 review(s) | Add your review

With 7.5 A rated output and a built-in braking unit, this 1.5 kW (2 hp) mini VFD is the largest rating in our non-enclosure series, driving three-phase motors from a 220–240V single-phase supply. It offers 1:100 speed regulation, 150% overload for 1 minute, and output up to 1000 Hz on a (150 × 98 × 114)mm, 887g board that mounts inside your own cabinet.

Free shipping

Delivery date: 6-12 days

SKU: GK3300-2S0015

increase decrease

Overview
Details
FAQ
Reviews

Overview

This one is the 1.5 kW (2 hp) rating of our non-enclosure mini VFD range. Without an outer shell, the board is meant to be built into a machine or control cabinet that provides protection. It suits loads that benefit from reduced and controlled speed, such as conveyors, fans, and pumps. At 7.5 A, this model carries the most current in the range, so plan cabinet airflow carefully: keep ambient temperature between –10℃ and +40℃, and derate output by 5% for each 1℃ above 40℃.

Specifications

Basics	Model	GK3300-2S0015
	Capacity	1.5 kW (2 hp)
	Shipping Weight	887 g
	Dimension	(15098114) mm
I/O Feature	Rated Current	7.5 A
	Input Voltage	1-phase 220~240V AC
	Input Frequency	50Hz/ 60Hz
	Output Voltage	3-phase AC 0~input voltage
	Output Frequency	0Hz~1000Hz
	Overload Capacity	150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature	Control Mode	V/F control
	Control Mode	Sensorless vector control
	Communication	RS485
	Speed Regulation	1:100
	Start Torque	150% of rated torque at 1 Hz
	Speed Control Accuracy	≤±0.5% of rated synchronous speed
	Frequency Precision	Digital setting: max frequency x ±0.01%
	Frequency Precision	Analog setting: max frequency x ±0.2%
	Frequency Resolution	Analog setting: 0.1% of max frequency
	Frequency Resolution	Digital setting: 0.01Hz
	Torque Boost	Automatic torque boost, manual torque boost 0.1%~30.0%
	Interior PID Controller	Convenient for making a closed-loop system
	Automatic Energy-Saving Running	Optimizes the V/F curve automatically based on the load to achieve power-saving running
	Automatic Voltage Regulation (AVR)	Can keep constant output voltage when power source voltage varies
	Automatic Current Limiting	Limits running current automatically to avoid frequent overcurrent, which will cause tripping
Environment	Enclosure Rating	Open frame, no enclosure — install inside a protective cabinet
	Temperature	–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
	Humidity	5%~95%, without condensation
	Altitude	≤1000m; VFD will be derated if above 1000m
	Impingement and Oscillation	Normal running:<5.9m/s^² (0.6g); Transportation:<15m/s^² (1.5g)
	Store Environment	–20℃ to +60℃; no dust, no corrosive gas, no direct sunlight

Note: inverter.com VFD Cannot be used as a power source; it Can only be directly connected to an induction motor to control the motor speed.

Details

Power Terminals

Supply input and motor output terminate on the black power terminal block at the bottom of the board. With a 7.5 A rated output, wiring needs more care than on the smaller models: size the conductors for the full current, tighten each terminal firmly, and connect the drive's ground to the cabinet earth. Keep the power cables separated from the signal wiring on the opposite side of the board.

Stacked Board Layout

From above, two boards are stacked over the heatsink base. The upper board carries the microcontroller, and a ribbon cable runs between the boards. A tall electrolytic capacitor stands at the upper right, so keep the cabinet door and cable bundles clear of it when closing the panel.

Aluminum Heatsink

The aluminum plate visible in the side view is the main path for heat leaving the power stage, and at this rating it handles more heat than the smaller models. Mount the board so the plate stands vertical with open space above and below it, and add cabinet ventilation or a fan if ambient temperature approaches 40℃. The overall size matches the 0.75 kW model, so panel space planned for one can take the other.

Features

7.5 A Output for 1.5 kW Motors: Drives three-phase induction motors up to 1.5 kW (2 hp) from single-phase 220–240V, with 150% overload for 1 minute and 180% for 3 seconds.
Built-In Braking Unit: Lets you add a braking resistor to stop high-inertia loads faster, instead of waiting for a long coast-down.
Soft Start and Stop: Gradual acceleration and deceleration reduce the motor's startup inrush current and ease mechanical stress on belts and couplings.
V/F and Sensorless Vector Control: V/F mode suits fans and pumps. Sensorless vector mode gives 150% starting torque at 1 Hz and speed accuracy within ±0.5%, with manual torque boost adjustable from 0.1% to 30.0%.
Protection and Communication: Built-in PID, automatic energy saving, AVR, and automatic current limiting, plus RS-485 so a PLC can control several drives together.

Use Cases

Conveyors and Material Handling: Belt and roller conveyors can start gently, run at an adjustable speed, and stop smoothly, which reduces product shifting and mechanical wear.
Ventilation and Exhaust Fans: Fans up to 2 hp can run at reduced speed when demand is low, which cuts power draw and noise compared with running at full speed.
Water and Transfer Pumps: Pumps can ramp up gradually, and PID control can hold a steady flow or pressure as demand changes.
High-Inertia Machines: Grinders, mixers, and flywheel-driven equipment take time to stop on their own. With a braking resistor connected, the built-in braking unit shortens stopping time.

Application Scenarios

Packaging Machinery

Non-enclosure mini VFD for texile and garment machinery

Textile & Garment Machinery

Printing Machinery

Non-enclosure mini VFD for pharmaceutical and food machinery

Pharmaceutical & Food Machinery

FAQ

Q1: Is 1.5 kW the same as 2 hp, and which motors does this VFD fit?

1.5 kW is about 2 hp. Use a three-phase induction motor rated up to 1.5 kW (2 hp), wired for 220–240V, with a rated current of 7.5 A. Because the output voltage cannot exceed the input voltage, it will not run a motor that needs 380V or 460V.

Q2: What does the built-in braking unit do?

When a motor decelerates quickly, or a high-inertia load keeps turning, the motor feeds energy back into the drive and raises the DC bus voltage. A braking unit diverts that energy into a braking resistor so the drive can slow the load faster without tripping.

Q3: How does a VFD reduce motor starting current?

A VFD brings the motor up to speed gradually instead of connecting it straight to the supply. A longer acceleration time lowers the current drawn during startup, reducing stress on the motor and the supply.

Q4: When should I choose this model over an enclosed single- to three-phase VFD?

Choose this model when your machine or cabinet already provides the enclosure and panel space is limited. The enclosed single- to three-phase frequency inverters arrive in a finished housing for standalone mounting, so they suit installations where the drive is mounted on its own.

Write your own review

Review title: *

Review text: *

Rating:

1 2 3 4 5