ABB NINT-73C 64425579A Inverter Accessory
Product Overview
The ABB NINT-73C (Part Number: 64425579A) is a high-performance three-phase input choke engineered to work in conjunction with ABB inverter drives—especially the ACS800 series. Its main role is to reduce harmonic distortion, dampen electrical transients, and protect the drive’s input circuitry from voltage spikes and inrush currents. By improving the input current quality and lowering total harmonic distortion (THD), the NINT-73C supports compliance with power quality standards such as IEEE 519 and increases overall system reliability.
Key Features
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Harmonic Mitigation – Effectively reduces input current harmonics to meet industry power quality norms
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Inrush Current Limiting – Dampens sudden current surges during power-up, protecting upstream components
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Voltage Spike Protection – Absorbs and smooths transient voltages to shield drive electronics
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Enhanced Input Power Factor – Improves energy efficiency by stabilizing current waveform
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ABB Drive Compatibility – Tailored for seamless operation with ABB ACS800 drive family
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Rugged Industrial Build – Durable and reliable under demanding environmental and electrical conditions
Technical Specifications
3.1 Dimensions and Weight
| Item | Specification |
|---|---|
| Dimensions | 180 × 150 × 40 mm |
| Weight | 0.45kg |
3.2 Electrical Characteristics
| Item | Specification |
|---|---|
| Rated Voltage | 400–690 VAC (3-phase) |
| Rated Frequency | 50/60 Hz |
| Typical Impedance | 3% line impedance |
| Inductance Tolerance | ±10% |
| Cooling Method | Natural air cooling |
| Insulation Class | Class F (or better) |
| Item | Specification |
|---|---|
| Operating Temp | -10°C to +45°C (derating above) |
| Storage Temp | -25°C to +70°C |
| Humidity | 5%–95% RH (non-condensing) |
| Altitude | Up to 1000 m without derating |
| Protection Class | IP00 (requires enclosure) |
3.4 System Compatibility
| Item | Specification |
|---|---|
| Compatible Drive Series | ABB ACS800 (various frames) |
| Compliance | IEC 60076, IEC/EN 61000-4-5 |
| Typical Applications | Harmonic filtering, drive input protection |
Industry Applications
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Metals & Mining – Stabilizes power input for crushers, rolling mills, and heavy-duty conveyors
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Oil & Gas – Protects drives powering pumps and compressors in harsh drilling environments
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Pulp & Paper – Ensures reliable drive performance in paper machines and finishing lines
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Water & Wastewater – Prevents nuisance tripping in pumps and aerators due to grid disturbances
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Marine & Offshore – Ideal for use in variable frequency drive (VFD) systems on ships and platforms
The ABB NINT-73C 64425579A Input Choke is a crucial inverter accessory for reducing harmonics, protecting input components, and enhancing the operational efficiency of ABB drives. Its compact size, lightweight design, and robust electrical performance make it an ideal solution for integration into modern industrial systems.
