CHINT NVF7 VFD Variable Frequency Drive Inverter

Name: CHINT NVF7 VFD Variable Frequency Drive Inverter
Brand: CHINT

High-performance VFD with vector control, 200% torque at 0.25Hz, MODBUS communication.

Power (kW)

Input Voltage

Category: Others

Description

Product Overview

The CHINT NVF7 Inverter is a next-generation, high-performance variable frequency drive (VFD) designed for precise motor control, energy efficiency, and intelligent automation. Equipped with advanced vector control algorithms, it delivers 200% starting torque at 0.25 Hz.

Main Features

Advanced vector control algorithms
200% starting torque at 0.25Hz
Open-loop and closed-loop operation
Built-in PLC logic
MODBUS communication
Comprehensive protection features

Technical Specifications

Please refer to the product catalog below for detailed technical specifications.

Typical Applications

Manufacturing automation
HVAC systems
Water treatment
Energy systems
Industrial motor control

Ordering Support

For detailed ordering information and technical support, please contact our sales team.

Product Catalog

Below is the complete product catalog:

Additional information

Power (kW)	0.75kW, 1.5kW, 2.2kW, 4kW, 5.5kW, 7.5kW, 11kW, 15kW, 18.5kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW, 160kW, 185kW, 200kW, 220kW, 250kW, 280kW, 315kW, 355kW, 400kW
Input Voltage	3-Phase 380V

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT NVF7 VFD Variable Frequency Drive Inverter.

📥

Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

📐

2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.