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NXCC

NXCC

The CHINT NXCC Capacitor Contactor is a specialized device designed for safe and efficient switching of low-voltage capacitor banks in power factor correction systems. With rated operational voltage up to 690 V and current ratings from 25 A to 170 A, it minimizes inrush current using pre-charge resistors to protect capacitors and extend service life. Built to IEC/EN 60947-4-1 standards, the NXCC series ensures reliable performance in reactive power compensation, offering stable operation even under demanding industrial conditions.

Product Information

Standards: IEC/EN 60947-4-1
Rated Operational Voltage (Ue): Up to 690 V
Rated Insulation Voltage (Ui): 690 V
Impulse Withstand Voltage (Uimp): 6 kV
Rated Current (Ith): 25 A / 32 A / 43 A / 63 A / 95 A / 115 A / 150 A / 170 A
Rated Operational Current (Ie, AC-6b):
- NXCC-25: 19 A
- NXCC-63: 52.5 A
- NXCC-170: 136.8 A
Controlled Capacitor Capacity (kvar):
- 220/230 V: 7.2–52.1 kvar
- 380/400 V: 12.5–90 kvar
- 660/690 V: 21.7–156.3 kvar
Coil Working Voltage:
- 110 V, 127 V, 220 V, 380 V, 415 V (50 Hz)
Pick-up: 85–110% Us; Release: 20–75% Us
Coil Capacity (VA):
- Start/Hold: 70/9.5 VA (NXCC-25) to 1000/91.2 VA (NXCC-170)
Auxiliary Contacts:
- 25–115 A: 2NO+1NC or 1NO+2NC
- 150–170 A: 3NO+2NC or 2NO+3NC
Capacity: AC-15: 230 V/2.7 A; 400 V/1.5 A | DC-13: 220 V/0.3 A
Surge Current Suppression: 20 × Ie (resistor pre-charge circuit)
Protection Degree: IP20 (front) / IP10 overall
Environmental Conditions:
- Temperature: −35 °C to +70 °C (normal −5 °C to +40 °C)
- Altitude: ≤ 2000 m
- Humidity: ≤ 50% at +70 °C; up to 90% at +20 °C
- Pollution Degree: 3
Installation Category: III
Inclination: ≤ ±5° from vertical
Shock/Vibration: No significant mechanical vibration allowed
Mounting Options:
- NXCC-25~43: Screw or 35 mm DIN rail
- NXCC-63~115: Screw or 35/75 mm DIN rail
- NXCC-150~170: Screw mounting
Applications:
- Power factor correction cabinets
- Reactive power compensation systems
- Industrial and commercial capacitor banks
- Electrical distribution systems

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NXCC-Other Contactors-catalog.pdf

903.17KB

2025-03-05

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NXCC-Contactors for Capacitor Switching-Manual.pdf

1.15MB

2024-10-15

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Release time

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2312-NXCC-150-Contactors for Capacitor Switching-CB Certificate.pdf

917.83KB

2024-10-15

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2310-NXCC-63-Contactors for Capacitor Switching-CB Certificate.pdf

917.29KB

2024-10-15

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2310-NXCC-32-Contactors for Capacitor Switching-CB Certificate.pdf

900.65KB

2024-10-15

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2310-NXCC-95-Contactors for Capacitor Switching-CB Certificate.pdf

894.17KB

2024-10-15

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2310-NXCC-25-Contactors for Capacitor Switching-CB Certificate.pdf

899.88KB

2024-10-15

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FAQs

What is the main function of the NXCC Capacitor Contactor?

The NXCC is designed to switch and protect low-voltage capacitors in reactive power compensation systems, ensuring smooth engagement and discharge of capacitor banks.

How does it prevent inrush current?

Each NXCC contactor integrates pre-charge resistors that limit inrush current during capacitor energization, protecting the capacitor bank from damage and extending its lifespan.

What are the available current and voltage ratings?

The NXCC series covers 25 A to 170 A and operates up to 690 V, suitable for various power factor correction cabinet sizes and load requirements.

Can it operate under harsh conditions?

Yes, it performs reliably in temperatures from −35 °C to +70 °C, at altitudes up to 2000 m, and in pollution level 3 industrial environments.

How is it installed?

Smaller models (25–115 A) can be mounted on DIN rails, while higher-capacity versions (150–170 A) use screw mounting for secure, heavy-duty installation.