CHINT NXC-65 AC Contactor

NXC-65 from the Kunlun Series by CHINT Electric is a 3-pole AC contactor, rated at 65A in the NXC series. The full model is typically expressed as NXC-65 [Tension de bobine] [Fréquence] (par ex., NXC-65 220V 50Hz). It is mainly used for frequent starting and control of AC motors, as well as remote making and breaking of circuits.

Paramètres électriques de base

Caractéristiques du produit

1. Compact structure: Kunlun series design, petite taille, low installation space requirement
2. Haute fiabilité: Made of high-quality materials with precision manufacturing, adapté aux environnements industriels difficiles
3. Faible consommation d'énergie: Low coil power loss, obvious energy-saving effect
4. Installation facile & maintenance: Montage sur rail DIN standard de 35 mm, clear terminals for easy operation
5. Strong expandability: Optional auxiliary contacts, air delay modules and other accessories available
6. Good safety performance: Excellent arc extinguishing performance and high breaking capacity

Applications

AC motor control: Frequent start, stop and reversing control for three-phase asynchronous motors up to approx. 30kW

Industrial automation systems: Control of production lines, convoyeurs, les fans, pompes, etc..

Electrical control systems: Combined with thermal overload relays to form magnetic starters for motor overload protection

Building electrical: Systèmes de climatisation, fire equipment, water pump control systems

New energy equipment: Auxiliary control circuits for charging piles, PV inverters, etc..

Partial List of CHINT NXC Series Models

Comparaison entre marques (Equivalent AC Contactors)

Below is a comparison between CHINT NXC-65 and equivalent contactors from major brands, all functionally compatible:

Brand Feature Comparison

Important Notes

1. Ensure the coil voltage matches the control system to avoid malfunction.
2. Use the contactor with protective devices such as thermal overload relays for motor overload protection.
3. For high-frequency operation, select models with longer electrical life or increase maintenance frequency.
4. Ensure firm wiring of main and control circuits to prevent failures caused by poor contact.

CHINT Contactor Full Series Coding System & Cross-Brand Reference

1. CHINT Contactor Series Overview & Naming Rules

1.1 Main Series Classification

1.2 CHINT Contactor Model Naming Rules

NXC Series Format

NXC □□□ [M.] [Tension de bobine] [Fréquence]

│ │ │ │ │

│ │ │ │ └─ Coil frequency (50Hz/60Hz, default 50Hz)

│ │ │ └─ Coil voltage (AC24V/110V/220V/380V or DC24V/110V/220V)

│ │ └─ M = reversing contactor; blank = non-reversing

│ └─ Rated operational current (UN)

└─ Brand code + product type (CHINT + Contacteur CA)

Auxiliary Contact Marking

Base model: default 1NO + 1Caroline du Nord (11)

Extended format: NXC-□□□-[XX], where XX = contact combination (01=0NO1NC, 22=2NO2NC)

Special Function Codes

Z: DC-operated contactor

N: Reversing contactor (NS = horizontal, NC = vertical)

-12: Newer version with improved performance

2. Complete CHINT Contactor Model List

2.1 Full NXC Series (Kunlun)

2.2 Core Models of Other Series

3. Cross-Brand Reference for CHINT Contactors

3.1 General Contactor Cross Reference (AC-3, 380V)

3.2 Brand Technical Comparison

4. Sélection & Replacement Guidelines

4.1 Paramètres de sélection clés

1. Courant nominal (C'est à dire): Select according to load; for motors, Ie ≥ 1.2 × motor rated current.
2. Tension de bobine: Must match control system (AC/DC not interchangeable).
3. Fréquence de fonctionnement: For >1200 opérations/heure, use long-life models.
4. Contacts auxiliaires: Choose based on control logic (default 1NO+1NC).
5. Montage: Rail DIN standard de 35 mm; high-current models may use bolt mounting.

4.2 Cross-Brand Replacement Notes

1. Compatibilité mécanique

NXC mostly compatible with Schneider LC1-D mounting, but hole positions differ slightly.

Models above 100A vary greatly; brackets may need modification.

2. Electrical compatibility

Coil voltage and frequency must match exactly.

Auxiliary contact ratings differ (CHINT ~5A, some Schneider ~10A).

Short-circuit coordination with fuses/circuit breakers should be rechecked.

3. Performance differences

NXC: mechanical life 1.2 million, electrical life 100,000 (AC-3).

Premium Schneider/Siemens models reach 200,000 electrical cycles for ultra-frequent use.

4.3 NXC vs CJX2 Replacement

5. Quick Motor Selection Table

CHINT contactors cover a full range from 6A to 630A. The NXC (Kunlun) series offers greatly improved performance, reliability and compatibility, and can directly replace the CJX2 series and equivalent products from other brands. Pour le remplacement entre marques, verify rated current, tension de bobine, mounting dimensions and auxiliary contact configuration to ensure stable system operation.