Chint NVF3 Inverter VFD Chint NVF3 Inverter VFD
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Chint NVF3 Inverter VFD
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Chint NVF3 Inverter VFD
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Chint NVF3 Inverter VFD
Chint NVF3 Inverter VFD
Chint NVF3 Inverter VFD
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Chint NVF3 Inverter VFD

Rated Power:1.5kW – 400kW
Type:Inverter
Brand Name:China
Place of Origin:China
power phase number:3 Phase
Model Number:NVF3
Nominal Voltage:380V
Control Mode:open-loop vector control
Certification:CCC, CE
Warranty:3months-1year
Customized:NO
Power (kW)
Input Voltage
SKU: 1769744232123211776 Category: Chint Inverter & Soft Starters
  • Description
  • Additional information
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

Chint original NVF3 vfd NVF3-1.5 NVF3-2.2 NVF3-3.7 NVF3-7.5 NVF3-11 TS4 PS4 CHNT open loop vector controlled Frequency Inverter

   

As a high-performance open-loop vector controlled inverter developed by our company independently, Chint NVF3 series inverter achieves the high-precision flux vector torque control by using the advanced control algorithm and is characterized by high control accuracy, wide speed range, large starting torque, high reliability, strong overload capacity and flexible operation. The rich and practical speed control, torque control, process closed-loop control, simple PLC, wobble frequency control and multi-speed control can meet a variety of complex high-precision transmission needs.

Chint NVF3 series inverter have two types that are the typical type (heavy load) and fan-pump type (light load), with the functions of strong load adaptability, reliable operation and automatic energy saving operation. It can be widely used in electrical ransmission and automation control areas, including lifting, machine tool, textiles, energy, mining, metallurgy, chemical, printing and dyeing, injection molding, foods, cement, water supply, municipal services and papermaking.

The product is designed and tested in accordance with international standards and strictly simulates users’ application environment for tests.

The product conforms to standards GB/T 12668.2-2002 and IEC 61800-2.

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 NVF3 Inverter VFD.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
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?

A

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?

A

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?

A

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?

A

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?

A

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.

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    Where to Use NVF3 Frequency Inverter?

    The Chint NVF3 Inverter VFD is a VFD (Variable Frequency Drive) for 0.4kW - 900kW motors. Provides variable speed control for fans, pumps, conveyors, and machinery.

    Energy Savings with VFD

    In fan and pump applications, reducing speed by 20% saves approximately 50% energy. Power consumption is proportional to the cube of speed.

    SpeedPowerSavings
    100%100%0%
    80%51%49%
    50%13%87%

    Key Benefits

    • Variable Speed Control - 0-400Hz output frequency
    • Energy Efficiency - Significant savings in fan/pump applications
    • Soft Start/Stop - Eliminates mechanical shock
    • Process Control - Precise speed regulation

    FAQs

    Q: Will VFD damage my motor?

    A: Modern VFDs are designed to work safely with standard motors. For cable runs over 50m, an output reactor is recommended.