Chint NVF3M Variable Frequency Drive
Compact vector control drive delivering 150% starting torque at 0.5Hz and standard RS485 communication.
Product Overview
The Chint NVF3M series mini inverter operates across 220V and 380V input ranges (±15%) with an output frequency range from 0 to 300Hz. Built to IEC 61800-2 and GB/T 12668.2-2002 standards, it provides IP20 protection and dual control modes: V/F control and vector control without PG. Featuring an overload capacity of 150% rated current for 60 seconds, standard RS485 communication, and cooling via high-speed DC fans, it maintains 1:100 speed ratio precision in ambient temperatures from -10℃ to 40℃.
Technical Parameters
| Input voltage range | 220/380(15%) |
| Output voltage range | 0 Input voltage |
| Torque boost | Automatic torque boost; manual torque boost 0.1%~30.0% |
| Protection grade | IP20 |
| Overload capacity | 150% of rated current 60s |
| Starting torque | Without PG vector control, 0.5Hz/150 %( rated torque) |
| Maximum output current | 200mA |
| open Contact capacity | NO/NC:5A/3A |
| Control Mode | Without PG vector control, V/F control |
| Speed Ratio | 1:100(without PG control); 1:50 (V/F control) |
| Speed Control Precision | ±0.5% of maximum speed |
| Cooling Mode | Cooling by high-speed DC fans |
| Programmable Digital Inputs | 5 input (including 1 high-speed pulse input) |
| Communication Interface | Standard RS485 communication interface |
| Standards | GB/T 12668.2-2002, IEC 61800-2 |
| Operating Ambient Temperature | -10℃ to 40℃ |
| Operating Humidity | 5%～95%RH, without condensed water |
| Installation Altitude | Up to 1000 m without derating |
| Brand | Chint |
| Model | NVF3M |
| Product type | Variable Frequency Drive |
| Applicable standard | GB/T 12668.2-2002, IEC 61800-2 |
Key Selling Points
✓ High Starting Torque: Delivers 150% rated torque at 0.5Hz utilizing vector control without PG.
✓ Overload Capacity: Withstands 150% of rated current for 60 seconds during peak motor duty cycles.
✓ Dual Control Modes: Supports both V/F control (1:50 speed ratio) and vector control without PG (1:100 speed ratio) with ±0.5% speed precision.
✓ Flexible Torque Boost: Features automatic torque boost as well as manual torque boost adjustable between 0.1% and 30.0%.
✓ Integrated I/O and Communication: Configured with 5 programmable digital inputs including 1 high-speed pulse input and a standard RS485 port.
✓ Standard Compliance: Designed and manufactured in accordance with GB/T 12668.2-2002 and IEC 61800-2 specifications.
Technical Highlights
- Input voltage range: 220V / 380V (±15%) at (47~63)Hz input frequency
- Output frequency range: (0~300)Hz with carrier frequency of (0.5~15)kHz
- Output voltage range: 0 to input voltage
- Cooling mode: High-speed DC fan forced cooling
- Operating ambient conditions: -10℃ to 40℃ and 5%～95%RH without condensed water
- Enclosure protection: IP20 ingress protection rating
- Contact and output ratings: NO/NC relay contacts rated 5A/3A with 200mA maximum output current
Reference Datasheet Pages
The following pages were selected from the model catalogue and are included for technical reference:
NVF3M Catalog and Technical Data
