VFD 300 N/T Series – Three Phase 380V Input / Three Phase 380V Output

The VFD 300 N/T Series is our full-range three-phase industrial frequency inverter, covering power range from 0.75kW to 720kW. Featuring advanced vector control technology, it delivers precise motor control for demanding industrial applications.

Key Features

Output Frequency: 0-3000Hz
Overload Capacity: 150% rated current for 1 minute, 180% for 3 seconds
Control Method: Optimized space voltage vector SVPWM control
Control Mode: Sensorless vector control with optimal low-frequency dead zone compensation
Frequency Resolution: Digital 0.01Hz; Analog max frequency ×0.025%
Starting Frequency: 0.0-10.0Hz
Torque Boost: Automatic / Manual 0.1%-30.0%
Built-in PID closed-loop control
Multi-speed operation via built-in PLC or control terminals
RS485 communication support
PV Power Tracking: CVT mode, MPPT mode
Comprehensive protection: overcurrent, overvoltage, undervoltage, overheat, overload

Model Specifications (300N – Plastic Shell / 300T – Iron Shell)

Model	Rated Current	Dimensions (H×W×D mm)	IGBT
300N-0.75KWG-3	2.5A	165×98×128	Single Tube
300N-1.5KWG-3	3.7A	165×98×128	Single Tube
300N-2.2KWG-3	5A	165×98×128	Single Tube
300N-3KWG-3	6.8A	165×98×128	Single Tube
300N-4KWG-3	9A	165×98×128	Single Tube
300N-5.5KWG-3	13A	187×100×137.5	Single Tube
300N-7.5KWG-3	17A	187×100×137.5	Single Tube
300N-11KWG-3	25A	220×130×177.5	Single Tube
300N-15KWG-3	32A	220×130×177.5	Single Tube
300T-11KWG-3	25A	280×150×196	Module
300T-15KWG-3	32A	280×150×196	Module
300T-18.5KWG-3	37A	330×170×235	Module
300N-22KWG-3	45A	380×215×215	Module
300T-30KWG-3	60A	380×215×215	Module
300T-37KWG-3	75A	380×215×215	Module
300-45KWG-3	90A	510×260×260	Module
300-55KWG-3	110A	535×260×272	Module
300T-75KWG-3	150A	535×260×272	Module
300T-90KWG-3	176A	600×340×280	Module
300-110KWG-3	210A	600×340×280	Module
300-132KWG-3	250A	800×380×310	Module
300-160KWG-3	300A	800×380×310	Module
300-185KWG-3	340A	800×380×310	Module
300-200KWG-3	380A	920×500×315	Module
300-220KWG-3	415A	920×500×315	Module
300-230KWG-3	470A	1050×650×360	Module
300-285KWG-3	520A	1050×650×360	Module
300-315KWG-3	600A	1050×650×360	Module
300-355KWG-3	640A	1250×850×350	Module
300-400KWG-3	690A	1250×850×350	Module
300-450KWG-3	820A	1250×850×350	Module
300-500KWG-3	860A	1350×1000×390	Module
300-550KWG-3	920A	1350×1000×390	Module
300-630KWG-3	1100A	1350×1000×390	Module
300-720KWG-3	1220A	1350×1000×390	Module

Electrical Specifications

Parameter	Specification
Input Voltage	Three Phase 380V 50/60Hz
Output Voltage	Three Phase 0-380V
Output Frequency	0-600Hz
Operating Voltage	Three-phase 380V Input / Three-phase 380V Output

300N: Plastic shell models (0.75kW-22kW), compact design
300T: Iron shell models (11kW-37kW), enhanced durability
300: Cabinet-type models (45kW-720kW), industrial grade

Applications: Heavy industry, mining equipment, large conveyors, HVAC systems, water treatment, oil & gas, manufacturing lines, and PV solar pump systems.

OEM & ODM available. Contact us for pricing and technical support.

Control Circuit Wiring Diagrams

The following diagrams show the control circuit terminal layout and wiring for each main board type used in the 300 Series. The board type varies by model and power rating.

Main Circuit Terminal Layout

Main Circuit Terminal Layout (R/L1, S/L2, T — PP, PB — U, V, W — G, E)

Control Board Wiring Diagrams

A-Type (0.75-11kW) Control Board Wiring Diagram

A-Type (0.75-11kW) Main Board Wiring Diagram

B-Type (Mid Power) Control Board Wiring Diagram

B-Type (Mid Power) Main Board Wiring Diagram

C-Type (Mid Power) Control Board Wiring Diagram

C-Type (Mid Power) Main Board Wiring Diagram

D-Type (High Power) Control Board Wiring Diagram

D-Type (High Power) Main Board Wiring Diagram

E-Type (Max Power) Control Board Wiring Diagram

E-Type (Max Power) Main Board Wiring Diagram

Wiring Notes:

Analog voltage signals require shielded cables; wiring distance should not exceed 20m.
In severe interference environments, equip analog signal source side with filter capacitor or ferrite core.
Terminal assignments may vary by model — refer to actual product labeling.

VFD & Inverter

VFD 300 H2 Series – Single Phase 220V Inverter (0.75-3kW)

VFD 300 N/T Series – Three Phase 380V Inverter (0.75-720kW)

VFD 300 S2 Series – Single to Three Phase 220V Inverter (0.75-5.5kW)

VFD 300 S3 Series – Single to Three Phase 380V Inverter (0.75-11kW)