✅ CHINT 639040 – NVF2G-3.7/PS4 VFD, 3.7kW, 380V, Fan & Pump Type High-performance CHINT VFD with 3.7kW capacity and 9A output current, delivering precise speed control for fan and pump loads. Optimized for HVAC, irrigation, and process water applications with robust overload tolerance and compact design. 🔹 Description (English): The CHINT 639040 – NVF2G-3.7/PS4 is a smart, application-specific variable frequency drive engineered for medium-duty fan and pump systems. With a rated motor power of 3.7kW and 9A output, it is optimized to reduce energy consumption, prolong motor life, and ensure smooth system performance. Designed for harsh industrial conditions, the drive supports a 3-phase 380V ±15% input and operates across a wide frequency range of 47–63Hz. It delivers up to 120Hz output frequency for fan and pump load types, with a built-in overload capacity of 120% for 1 minute, ensuring system resilience during demand surges. The NVF2G-3.7/PS4 complies with international standards IEC 61800-5-1 and IEC 61800-3, and is certified by CCC and CE. It features advanced protections including under/over-voltage, overcurrent, and overheating protection, making it ideal for automated HVAC, booster pump stations, and circulation systems. 🔹 Key Features: • Rated motor power: 3.7kW • Rated output current: 9A • Input voltage: 3-phase 380V ±15% • Input frequency: 47–63Hz • Output frequency: 0–120Hz (Fan & Pump optimized) • Overload capacity: 120% of rated current for 1 minute • Built-in protections: overvoltage, overcurrent, overheat • Robust design for long-term industrial use • Ideal for HVAC, booster pumps, process cooling • Compliant with IEC 61800-5-1, IEC 61800-3 • Certified: CCC, CE 🔹 Technical Specifications (English): Parameter Value Model NVF2G-3.7/PS4 Part Number CHINT 639040 Rated Motor Power 3.7 kW Output Rated Current 9 A Input Voltage 3-phase 380V ±15% Input Frequency 47–63 Hz Output Frequency Range 0–120 Hz Overload Capacity 120% for 1 min (Fan & Pump Type) Application Type Fan & Pump Built-in Protections Overvoltage, Overcurrent, Overheat Compliance Standards IEC 61800-5-1, IEC 61800-3 Certification CCC, CE