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NXC-185-380V (Nro. de orden: 710010100000343)
| Segmento | Significado | Descripción |
| NXC | Serie de productos | Contactor de CA serie CHINT Kunlun, Estructura compacta mejorada que reemplaza a la serie CJX2 tradicional. |
| 185 | Corriente nominal | Rated operational current of main contact: 185A (AC-3, 400V) |
| 380V | Voltaje de la bobina | Rated control coil voltage: CA380V, standard frequency 50Hz |
Supplementary Specifications: 3-polo (3PAG), 3 normally-open main contacts, 2NO+2NC auxiliary contacts, standard mounting type
- Parámetros de especificación principales
| Categoría | Datos técnicos | Observaciones |
| Basic Properties | ||
| Tipo de producto | Electromagnetic AC Contactor | Serie Kunlun, replacement for CJX2-1850 |
| Normas aplicables | GB/T 14048.4 / CEI 60947-4-1 | Compliant with GB 21518 estándar de seguridad |
| Tensión nominal de aislamiento | 1000V | Unified standard for specifications above 120A |
| Tensión operativa nominal | 220~690V | Compatible with various industrial power supply systems |
| Parámetros eléctricos | ||
| Corriente operativa nominal (Es decir) | 185A (AC-3, 400V) | Matches motor power around 90kW |
| Capacidad de fabricación nominal | 10×Ie (AC-3) | 1850A, reliable load switching |
| Capacidad de ruptura nominal | 8×Ie (AC-3) | 1480A, safe fault current interruption |
| Parámetros de la bobina | CA380V, 50Hz, power approx. 170Virginia | Pick-up/holding power ratio about 3:1 |
| Contactos auxiliares | 2NO+2NC, rated current 5A | Signal transmission for control circuits |
| Parámetros mecánicos | ||
| Número de polo | 3PAG (3 SIN contactos principales) | Configuración estándar, 4P version optional |
| Método de montaje | Carril DIN estándar de 35 mm / montaje con tornillos | Fits mainstream control cabinets |
| Material de la carcasa | Plástico de ingeniería ignífugo | UL94 V0 flame resistance grade |
| Grado de protección | IP20 | Finger-touch safe, indoor cabinet installation only |
| Vida mecánica | 10,000,000 operaciones | Larga vida útil, low maintenance frequency |
| Vida eléctrica | 1,000,000 operaciones (AC-3) | Adecuado para operaciones frecuentes de arranque y parada. |
| Parámetros ambientales | ||
| Temperatura de funcionamiento | -30°C ~ +70°C | Wide temperature range for harsh industrial conditions |
| Temperatura de almacenamiento | -40°C ~ +85°C | Meets storage and transportation requirements |
| Humedad relativa | 5%~95%, sin condensación | Adaptable to humid working environment |
| Altitud | ≤2000m | Derating required for higher altitude |
- Cross-brand Replacement Comparison
| Marca | Modelo | Características similares | Diferencias |
| CHINT | NXC-185-380V | Modelo de referencia | Serie Kunlun, rentable, preferred domestic replacement |
| Schneider | LC1D18500Q7 | 185A, 3PAG, 380V coil | Precio más alto, 1NO+1NC auxiliary contacts |
| TEJIDO | A185-30-11 | 185A, 3PAG, 380V coil | 1NO+1NC auxiliary contacts, different mounting dimensions |
| siemens | 3RT2036-1AP00 | 185A, 3PAG, 380V coil | High price, respuesta rápida, ideal for precision control |
| DELIXI | CDM3-185 | 185A, 3PAG, 380V coil | Alternativa doméstica, similar price, slightly lower performance |
Notas de reemplazo:
- 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
- Full Series Model List (Core NXC Models)
| Modelo | Corriente nominal | Voltaje de la bobina | Contacto auxiliar | Polo | Número de pedido. |
| NXC-06-220V | 6A | CA 220 V. | 1NO+1NC | 3PAG | 710010100000001 |
| NXC-12-380V | 12A | CA380V | 1NO+1NC | 3PAG | 710010100000002 |
| NXC-18-220V | 18A | CA 220 V. | 1NO+1NC | 3PAG | 710010100000003 |
| NXC-25-380V | 25A | CA380V | 1NO+1NC | 3PAG | 710010100000004 |
| NXC-32-220V | 32A | CA 220 V. | 1NO+1NC | 3PAG | 710010100000005 |
| NXC-40-380V | 40A | CA380V | 1NO+1NC | 3PAG | 710010100000006 |
| NXC-50-220V | 50A | CA 220 V. | 1NO+1NC | 3PAG | 710010100000007 |
| NXC-65-380V | 65A | CA380V | 1NO+1NC | 3PAG | 710010100000008 |
| NXC-80-220V | 80A | CA 220 V. | 2NO+2NC | 3PAG | 710010100000009 |
| NXC-100-380V | 100A | CA380V | 2NO+2NC | 3PAG | 710010100000305 |
| NXC-120-220V | 120A | CA 220 V. | 2NO+2NC | 3PAG | 710010100000306 |
| NXC-150-380V | 150A | CA380V | 2NO+2NC | 3PAG | 710010100000307 |
| NXC-185-380V | 185A | CA380V | 2NO+2NC | 3PAG | 710010100000343 |
| NXC-225-380V | 225A | CA380V | 2NO+2NC | 3PAG | 710010100000344 |
| NXC-265-380V | 265A | CA380V | 2NO+2NC | 3PAG | 710010100000345 |
Model Extension Rules:
Suffix M: Contactor reversible (p.ej. NXC-25M-220V)
Suffix 4P: 4-contactor de polo (p.ej. NXC-65-4P-380V)
Suffix Z: bobina de CC (p.ej. NXC-18-24Z)
Auxiliary contact expansion: Max 6NO+6NC with F4-XX auxiliary contact block
- Fallos comunes & Solución de problemas
| Fenómeno de falla | Posibles causas | Soluciones |
| El contactor no logra entrar | 1. Abnormal coil voltage | 1. Verify stable 380V power supply |
| 2. Open control circuit | 2. Check wiring and fuse | |
| 3. bobina quemada | 3. Test coil resistance (normal ~800Ω), replace damaged coil | |
| 4. Atasco mecánico | 4. Clean iron core and reset spring | |
| Ruido fuerte después de entrar | 1. Oil contamination on core surface | 1. Clean contact surface of iron core |
| 2. Broken short-circuit ring | 2. Replace iron core or short-circuit ring | |
| 3. Subtensión | 3. Ensure voltage ≥85% rated value | |
| 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. Cambio frecuente | 3. Optimize control logic to reduce unnecessary switching | |
| 4. Failed arc suppression | 4. Inspect and maintain arc shield | |
| Malfunction of auxiliary contacts | 1. Contact oxidation | 1. Polish and clean contacts |
| 2. ablación por contacto | 2. Replace auxiliary contact assembly | |
| 3. Cableado suelto | 3. Fasten terminal connections | |
| Overheating and burnt coil | 1. Sobretensión | 1. Keep voltage within rated range |
| 2. Excessive operation frequency | 2. Reduce switching frequency or adopt AC-4 type contactor | |
| 3. Temperatura ambiente alta | 3. Improve ventilation condition | |
| 4. Stuck iron core | 4. Ensure flexible mechanical movement |
- Cumplimiento del transporte aéreo & Certificaciones
- Certificaciones
Certificación 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
Sin batería de litio incorporada ni supercondensador, classified as ordinary industrial electrical equipment
Non-dangerous goods, conforms to IATA DGR Class 9 requisitos
Standard industrial packaging, máximo 20 units per carton to avoid collision damage
Recommended marks: FRAGILE, ELECTRICAL EQUIPMENT, KEEP DRY
- Entorno de aplicación & Adaptación
Escenarios aplicables
Control de motores industriales: Comenzar, stop and reverse control of three-phase asynchronous motors below 90kW
Admirador & Water Pump System: climatización, industrial circulating water and sewage aeration equipment control
Control del compresor: Heavy-duty air and refrigeration compressors for AC-3 working condition
Línea de producción automática: Core component for sequence control and interlock protection
Building Electrical System: Central air conditioning, fire water pump and elevator room equipment control
Mining Machinery: Remote control and protection for belt conveyors and crushers
Metallurgical Equipment: Electrical control system for small rolling mills and furnace auxiliary units
Escenarios inadecuados
DC circuit control (Select dedicated NXC-Z series DC contactors)
High-frequency operation over 1200 ciclos por hora (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
Caso 1: Central Air Conditioning Control of Large Shopping Mall
Solicitud: Control of 3 sets 90kW water chillers and 4 sets 75kW cooling tower fans
Desafíos: 20-30 daily start-stop cycles, high reliability and energy saving requirement
Solución: NXC-185-380V + NXR-185 thermal overload relay + intelligent PLC control system
Result: Trouble-free operation for 2 años, 30% energy saving with frequency conversion, 50% maintenance cost reduction
Caso 2: Conveyor System for Auto Parts Production Line
Solicitud: 12 belt conveyor lines with 75kW driving motor each, sequential start-stop and interlock protection
Desafíos: Multi-motor synchronous control, frequent forward/reverse rotation, oily environment
Solución: NXC-185-380V for main drive + NXC-65-380V for auxiliary drive + safety relay
Result: Precise synchronous operation, IP20 protection against oil contamination, mechanical life up to 8 millones de ciclos
- Directrices de selección
Quick Rules
Corriente nominal: NXC-X ranging 6~630A, matching motor power about X/2 kW
Standard coil voltage: 220V / 380V; optional 110V / 24V / 48V
Contacto auxiliar: 1NO+1NC for ≤80A; 2NO+2NC for ≥100A
Montaje: Universal 35mm DIN rail for mainstream cabinets
Clase de protección: IP20, indoor cabinet use only, outdoor exposed installation prohibited
Specific Application Scenarios of NXC185-380V
- Control de motores
Comenzar, 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
- Construcción & Infraestructura
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
- Energy & Protección ambiental
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
- Minería & Metalurgia
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 ciclos por hora
Underrated use at altitude over 2000m
Heavy vibration environment without damping measures
Corrosive gas environment without protective treatment
