Contacteur,disjoncteur,onduleur solaire,compteur électrique,batteries solaires
NXC-185-380V (Numéro de commande: 710010100000343)
| Segment | Signification | Description |
| NXC | Série de produits | CHINT Kunlun series AC contactor, upgraded compact structure replacing traditional CJX2 series |
| 185 | Courant nominal | Rated operational current of main contact: 185UN (AC-3, 400V) |
| 380V | Tension de bobine | Rated control coil voltage: AC380V, standard frequency 50Hz |
Supplementary Specifications: 3-pôle (3P.), 3 normally-open main contacts, 2Contacts auxiliaires NO+2NC, standard mounting type
- Paramètres de spécification de base
| Catégorie | Données techniques | Remarques |
| Basic Properties | ||
| Type de produit | Electromagnetic AC Contactor | Série Kunlun, replacement for CJX2-1850 |
| Normes applicables | GB/T 14048.4 / CEI 60947-4-1 | Compliant with GB 21518 safety standard |
| Tension d'isolation nominale | 1000V | Unified standard for specifications above 120A |
| Tension de fonctionnement nominale | 220V~690V | Compatible with various industrial power supply systems |
| Paramètres électriques | ||
| Courant opérationnel nominal (C'est à dire) | 185UN (AC-3, 400V) | Matches motor power around 90kW |
| Capacité de fabrication nominale | 10×C'est à dire (AC-3) | 1850UN, reliable load switching |
| Capacité de coupure nominale | 8×C'est à dire (AC-3) | 1480UN, safe fault current interruption |
| Paramètres de la bobine | AC380V, 50Hz, power approx. 170Virginie | Pick-up/holding power ratio about 3:1 |
| Contacts auxiliaires | 2NON+2NC, rated current 5A | Signal transmission for control circuits |
| Paramètres mécaniques | ||
| Numéro de pôle | 3P. (3 AUCUN contact principal) | Configuration standard, 4P version optional |
| Méthode de montage | Rail DIN standard de 35 mm / montage à vis | Fits mainstream control cabinets |
| Matériau du boîtier | Flame-retardant engineering plastic | UL94 V0 flame resistance grade |
| Degré de protection | IP20 | Finger-touch safe, indoor cabinet installation only |
| Durée de vie mécanique | 10,000,000 opérations | Longue durée de vie, low maintenance frequency |
| Durée de vie électrique | 1,000,000 opérations (AC-3) | Convient aux opérations de démarrage et d'arrêt fréquentes |
| Paramètres environnementaux | ||
| Température de fonctionnement | -30°C ~ +70°C | Wide temperature range for harsh industrial conditions |
| Température de stockage | -40°C ~ +85°C | Meets storage and transportation requirements |
| Humidité relative | 5%~95 %, sans condensation | Adaptable to humid working environment |
| Altitude | ≤2000m | Derating required for higher altitude |
- Cross-brand Replacement Comparison
| Marque | Modèle | Fonctionnalités similaires | Différences |
| CHINT | NXC-185-380V | Reference model | Série Kunlun, rentable, preferred domestic replacement |
| Schneider | LC1D18500Q7 | 185UN, 3P., 380Bobine V | Prix plus élevé, 1NO+1NC auxiliary contacts |
| ABB | A185-30-11 | 185UN, 3P., 380Bobine V | 1NO+1NC auxiliary contacts, different mounting dimensions |
| Siemens | 3RT2036-1AP00 | 185UN, 3P., 380Bobine V | High price, réponse rapide, ideal for precision control |
| DÉLIXI | CDM3-185 | 185UN, 3P., 380Bobine V | Alternative nationale, similar price, slightly lower performance |
Notes de remplacement:
- Confirm identical coil voltage, pole number and auxiliary contact configuration before replacement
- Verify mounting hole compatibility among different brands
- Check derating curve matching for high altitude and special environments
- Matching CHINT NXR thermal overload relay is recommended for optimal protection
- Liste des modèles de la série complète (Core NXC Models)
| Modèle | Courant nominal | Tension de bobine | Contact auxiliaire | Pôle | Numéro de commande. |
| NXC-06-220V | 6UN | AC220V | 1NON+1NC | 3P. | 710010100000001 |
| NXC-12-380V | 12UN | AC380V | 1NON+1NC | 3P. | 710010100000002 |
| NXC-18-220V | 18UN | AC220V | 1NON+1NC | 3P. | 710010100000003 |
| NXC-25-380V | 25UN | AC380V | 1NON+1NC | 3P. | 710010100000004 |
| NXC-32-220V | 32UN | AC220V | 1NON+1NC | 3P. | 710010100000005 |
| NXC-40-380V | 40UN | AC380V | 1NON+1NC | 3P. | 710010100000006 |
| NXC-50-220V | 50UN | AC220V | 1NON+1NC | 3P. | 710010100000007 |
| NXC-65-380V | 65UN | AC380V | 1NON+1NC | 3P. | 710010100000008 |
| NXC-80-220V | 80UN | AC220V | 2NON+2NC | 3P. | 710010100000009 |
| NXC-100-380V | 100UN | AC380V | 2NON+2NC | 3P. | 710010100000305 |
| NXC-120-220V | 120UN | AC220V | 2NON+2NC | 3P. | 710010100000306 |
| NXC-150-380V | 150UN | AC380V | 2NON+2NC | 3P. | 710010100000307 |
| NXC-185-380V | 185UN | AC380V | 2NON+2NC | 3P. | 710010100000343 |
| NXC-225-380V | 225UN | AC380V | 2NON+2NC | 3P. | 710010100000344 |
| NXC-265-380V | 265UN | AC380V | 2NON+2NC | 3P. | 710010100000345 |
Model Extension Rules:
Suffix M: Contacteur réversible (par exemple. NXC-25M-220V)
Suffix 4P: 4-contacteur de pôle (par exemple. NXC-65-4P-380V)
Suffix Z: Bobine CC (par exemple. NXC-18-24Z)
Auxiliary contact expansion: Max 6NO+6NC with F4-XX auxiliary contact block
- Défauts courants & Dépannage
| Phénomène de défaut | Causes possibles | Solutions |
| Le contacteur ne parvient pas à s'enclencher | 1. Abnormal coil voltage | 1. Verify stable 380V power supply |
| 2. Open control circuit | 2. Check wiring and fuse | |
| 3. Bobine brûlée | 3. Tester la résistance de la bobine (normal ~800Ω), replace damaged coil | |
| 4. Mechanical jam | 4. Clean iron core and reset spring | |
| Bruit fort après l'arrivée | 1. Oil contamination on core surface | 1. Clean contact surface of iron core |
| 2. Anneau de court-circuit cassé | 2. Replace iron core or short-circuit ring | |
| 3. Sous-tension | 3. Assurer une tension ≥85 % de la valeur nominale | |
| Overheated / burned contacts | 1. Excessive load current | 1. Upgrade to higher capacity model |
| 2. Poor contact performance | 2. Clean contacts and adjust contact pressure | |
| 3. Frequent switching | 3. Optimize control logic to reduce unnecessary switching | |
| 4. Failed arc suppression | 4. Inspect and maintain arc shield | |
| Malfunction of auxiliary contacts | 1. Contacter l'oxydation | 1. Polish and clean contacts |
| 2. Contacter l'ablation | 2. Replace auxiliary contact assembly | |
| 3. Câblage lâche | 3. Fasten terminal connections | |
| Overheating and burnt coil | 1. Surtension | 1. Keep voltage within rated range |
| 2. Excessive operation frequency | 2. Reduce switching frequency or adopt AC-4 type contactor | |
| 3. Température ambiante élevée | 3. Improve ventilation condition | |
| 4. Stuck iron core | 4. Ensure flexible mechanical movement |
- Conformité du fret aérien & Certifications
- Certifications
Certification CE, compliant with EU Machinery Directive
cULus certification complying with North American safety standards
CCC compulsory certification of China
RoHS environmental compliance
- Air Transport Regulations
No built-in lithium battery or super capacitor, classified as ordinary industrial electrical equipment
Marchandises non dangereuses, conforms to IATA DGR Class 9 exigences
Standard industrial packaging, maximum 20 units per carton to avoid collision damage
Recommended marks: FRAGILE, ELECTRICAL EQUIPMENT, KEEP DRY
- Environnement d'application & Adaptation
Scénarios applicables
Contrôle de moteur industriel: Commencer, stop and reverse control of three-phase asynchronous motors below 90kW
Ventilateur & Water Pump System: CVC, industrial circulating water and sewage aeration equipment control
Compressor Control: Heavy-duty air and refrigeration compressors for AC-3 working condition
Automatic Production Line: Core component for sequence control and interlock protection
Building Electrical System: Climatisation centrale, fire water pump and elevator room equipment control
Machines minières: Remote control and protection for belt conveyors and crushers
Metallurgical Equipment: Electrical control system for small rolling mills and furnace auxiliary units
Scénarios inappropriés
DC circuit control (Select dedicated NXC-Z series DC contactors)
High-frequency operation over 1200 cycles per hour (AC-4 contactor or solid state relay recommended)
Use above 2000m altitude without power derating
Severe vibration environment over 5g without damping measures
Corrosive gas environment without anti-corrosion protection
- Application Cases
Cas 1: Central Air Conditioning Control of Large Shopping Mall
Application: Control of 3 sets 90kW water chillers and 4 sets 75kW cooling tower fans
Challenges: 20-30 daily start-stop cycles, high reliability and energy saving requirement
Solution: NXC-185-380V + NXR-185 thermal overload relay + intelligent PLC control system
Résultat: Trouble-free operation for 2 années, 30% energy saving with frequency conversion, 50% maintenance cost reduction
Cas 2: Conveyor System for Auto Parts Production Line
Application: 12 belt conveyor lines with 75kW driving motor each, sequential start-stop and interlock protection
Challenges: Multi-motor synchronous control, frequent forward/reverse rotation, oily environment
Solution: NXC-185-380V for main drive + NXC-65-380V for auxiliary drive + safety relay
Résultat: Precise synchronous operation, IP20 protection against oil contamination, mechanical life up to 8 millions de cycles
- Lignes directrices de sélection
Règles rapides
Courant nominal: NXC-X ranging 6~630A, matching motor power about X/2 kW
Standard coil voltage: 220V / 380V; optional 110V / 24V / 48V
Contact auxiliaire: 1NO+1NC for ≤80A; 2NO+2NC for ≥100A
Montage: Universal 35mm DIN rail for mainstream cabinets
Classe de protection: IP20, indoor cabinet use only, outdoor exposed installation prohibited
Specific Application Scenarios of NXC185-380V
- Contrôle du moteur
Commencer, stop and reverse control of three-phase asynchronous motors below 90kW
Continuous operation control of constant-load equipment including fans, pumps and compressors
Motor control with operation frequency ≤1200 cycles per hour
- Industrial Automation System
Sequence control and interlock protection of production line facilities
Peripheral equipment control of robot workstations
Stacker and conveyor control in automated warehouses
- Construction & Infrastructure
Water chiller and cooling tower control for commercial central air conditioning
Fire water pump and exhaust fan control of high-rise buildings
Ventilation system control of underground parking lots
- Énergie & Protection de l'environnement
Aeration equipment and sludge pump control in sewage treatment plants
Switch control of small photovoltaic inverters and energy storage systems
Control system of waste disposal equipment
- Exploitation minière & Métallurgie
Belt conveyor and crusher control in mines
Auxiliary equipment control of small metallurgical furnaces
Electrical control system of mineral processing facilities
Restricted Application
DC circuit application
Operation frequency exceeding 1200 cycles per hour
Underrated use at altitude over 2000m
Heavy vibration environment without damping measures
Corrosive gas environment without protective treatment
