VFD 300N N/T Series Three Phase 380V Inverter (0.75-800 kW)

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 0.75 kW to 800 kW. Featuring advanced vector control technology, it delivers precise motor control for demanding industrial applications.

Key Features

• Output Frequency: 0-600 Hz
• 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)

Electrical Specifications

Enclosure options: models up to 11 kW use a plastic enclosure; models above 11 kW use an iron enclosure. The 15 kW model is available in either type (plastic is standard).

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

N/T Series Overview — Three Phase 380–480V, 0.75–800 kW

The N/T series is the widest in the 300N range: a three-phase input from 380V to 480V and a variable three-phase output from 0 to 480V, across 34 models from 0.75 kW to 800 kW. The 380–480V input window means one series covers both 380V and 440/480V three-phase supplies, which suits export projects where the supply voltage differs between markets. Models up to 11 kW use the plastic enclosure; models above 11 kW use the iron enclosure. Output frequency is adjustable up to 600 Hz. Wiring diagrams for the different power classes (A, B, C, D and E types) are given below.

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

Full model list: See all 118 certified 300N models by input/output voltage configuration →

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)
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Control Board Wiring Diagrams

A-Type (0.75-11kW) Main Board Wiring Diagram
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B-Type (Mid Power) Main Board Wiring Diagram
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C-Type (Mid Power) Main Board Wiring Diagram
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D-Type (High Power) Main Board Wiring Diagram
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E-Type (Max Power) Main Board Wiring Diagram
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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.