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NXC-185-380V (Bestell-Nr.: 710010100000343)
| Segment | Bedeutung | Beschreibung |
| NXC | Produktserie | AC-Schütz der CHINT Kunlun-Serie, verbesserte kompakte Struktur, die die traditionelle CJX2-Serie ersetzt |
| 185 | Nennstrom | Rated operational current of main contact: 185A (AC-3, 400V) |
| 380V | Spulenspannung | Rated control coil voltage: AC380V, standard frequency 50Hz |
Supplementary Specifications: 3-Pole (3P), 3 normally-open main contacts, 2Hilfskontakte NO+2NC, standard mounting type
- Kernspezifikationsparameter
| Kategorie | Technische Daten | Bemerkungen |
| Basic Properties | ||
| Produkttyp | Electromagnetic AC Contactor | Kunlun series, replacement for CJX2-1850 |
| Anwendbare Standards | GB/T 14048.4 / IEC 60947-4-1 | Compliant with GB 21518 safety standard |
| Bemessungsisolationsspannung | 1000V | Unified standard for specifications above 120A |
| Nennbetriebsspannung | 220V~690V | Compatible with various industrial power supply systems |
| Elektrische Parameter | ||
| Nennbetriebsstrom (Dh) | 185A (AC-3, 400V) | Matches motor power around 90kW |
| Rated Making Capacity | 10×Dh (AC-3) | 1850A, reliable load switching |
| Rated Breaking Capacity | 8×Dh (AC-3) | 1480A, safe fault current interruption |
| Spulenparameter | AC380V, 50Hz, power approx. 170VA | Pick-up/holding power ratio about 3:1 |
| Hilfskontakte | 2NO+2NC, rated current 5A | Signal transmission for control circuits |
| Mechanische Parameter | ||
| Polzahl | 3P (3 KEINE Hauptkontakte) | Standardkonfiguration, 4P version optional |
| Montagemethode | Standardmäßige 35-mm-DIN-Schiene / screw mounting | Fits mainstream control cabinets |
| Gehäusematerial | Flame-retardant engineering plastic | UL94 V0 flame resistance grade |
| Schutzgrad | IP20 | Finger-touch safe, indoor cabinet installation only |
| Mechanisches Leben | 10,000,000 Operationen | Lange Lebensdauer, low maintenance frequency |
| Elektrisches Leben | 1,000,000 Operationen (AC-3) | Geeignet für häufigen Start-Stopp-Betrieb |
| Umgebungsparameter | ||
| Betriebstemperatur | -30°C ~ +70°C | Wide temperature range for harsh industrial conditions |
| Lagertemperatur | -40°C ~ +85°C | Meets storage and transportation requirements |
| Relative Luftfeuchtigkeit | 5%~95 %, nicht kondensierend | Adaptable to humid working environment |
| Höhe | ≤2000m | Derating required for higher altitude |
- Cross-brand Replacement Comparison
| Marke | Modell | Ähnliche Funktionen | Unterschiede |
| CHINT | NXC-185-380V | Reference model | Kunlun series, kostengünstig, preferred domestic replacement |
| Schneider | LC1D18500Q7 | 185A, 3P, 380V coil | Höherer Preis, 1NO+1NC auxiliary contacts |
| ABB | A185-30-11 | 185A, 3P, 380V coil | 1NO+1NC auxiliary contacts, different mounting dimensions |
| Siemens | 3RT2036-1AP00 | 185A, 3P, 380V coil | High price, schnelle Reaktion, ideal for precision control |
| DELIXI | CDM3-185 | 185A, 3P, 380V coil | Inländische Alternative, ähnlicher Preis, slightly lower performance |
Ersatzhinweise:
- 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
- Vollständige Modellliste der Serie (Core NXC Models)
| Modell | Nennstrom | Spulenspannung | Hilfskontakt | Pole | Bestell-Nr. |
| NXC-06-220V | 6A | AC220V | 1NO+1NC | 3P | 710010100000001 |
| NXC-12-380V | 12A | AC380V | 1NO+1NC | 3P | 710010100000002 |
| NXC-18-220V | 18A | AC220V | 1NO+1NC | 3P | 710010100000003 |
| NXC-25-380V | 25A | AC380V | 1NO+1NC | 3P | 710010100000004 |
| NXC-32-220V | 32A | AC220V | 1NO+1NC | 3P | 710010100000005 |
| NXC-40-380V | 40A | AC380V | 1NO+1NC | 3P | 710010100000006 |
| NXC-50-220V | 50A | AC220V | 1NO+1NC | 3P | 710010100000007 |
| NXC-65-380V | 65A | AC380V | 1NO+1NC | 3P | 710010100000008 |
| NXC-80-220V | 80A | AC220V | 2NO+2NC | 3P | 710010100000009 |
| NXC-100-380V | 100A | AC380V | 2NO+2NC | 3P | 710010100000305 |
| NXC-120-220V | 120A | AC220V | 2NO+2NC | 3P | 710010100000306 |
| NXC-150-380V | 150A | AC380V | 2NO+2NC | 3P | 710010100000307 |
| NXC-185-380V | 185A | AC380V | 2NO+2NC | 3P | 710010100000343 |
| NXC-225-380V | 225A | AC380V | 2NO+2NC | 3P | 710010100000344 |
| NXC-265-380V | 265A | AC380V | 2NO+2NC | 3P | 710010100000345 |
Model Extension Rules:
Suffix M: Reversible contactor (z.B. NXC-25M-220V)
Suffix 4P: 4-Polschütz (z.B. NXC-65-4P-380V)
Suffix Z: DC coil (z.B. NXC-18-24Z)
Auxiliary contact expansion: Max 6NO+6NC with F4-XX auxiliary contact block
- Häufige Fehler & Fehlerbehebung
| Fehlerphänomen | Mögliche Ursachen | Lösungen |
| Schütz zieht nicht an | 1. Abnormal coil voltage | 1. Verify stable 380V power supply |
| 2. Open control circuit | 2. Check wiring and fuse | |
| 3. Burned coil | 3. Test coil resistance (normal ~800Ω), replace damaged coil | |
| 4. Mechanical jam | 4. Clean iron core and reset spring | |
| Lautes Geräusch nach dem Einfahren | 1. Oil contamination on core surface | 1. Clean contact surface of iron core |
| 2. Kurzschlussring defekt | 2. Replace iron core or short-circuit ring | |
| 3. Unterspannung | 3. Ensure voltage ≥85% rated value | |
| Overheated / burned contacts | 1. Zu hoher Laststrom | 1. Upgrade to higher capacity model |
| 2. Schlechte Kontaktleistung | 2. Clean contacts and adjust contact pressure | |
| 3. Häufiges Wechseln | 3. Optimize control logic to reduce unnecessary switching | |
| 4. Failed arc suppression | 4. Inspect and maintain arc shield | |
| Malfunction of auxiliary contacts | 1. Kontaktoxidation | 1. Polish and clean contacts |
| 2. Kontaktablation | 2. Replace auxiliary contact assembly | |
| 3. Lose Verkabelung | 3. Fasten terminal connections | |
| Overheating and burnt coil | 1. Überspannung | 1. Keep voltage within rated range |
| 2. Excessive operation frequency | 2. Reduce switching frequency or adopt AC-4 type contactor | |
| 3. Hohe Umgebungstemperatur | 3. Improve ventilation condition | |
| 4. Stuck iron core | 4. Ensure flexible mechanical movement |
- Luftfracht-Compliance & Zertifizierungen
- Zertifizierungen
CE-Zertifizierung, 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
Ungefährliche Güter, conforms to IATA DGR Class 9 requirements
Standard-Industrieverpackung, max 20 units per carton to avoid collision damage
Recommended marks: FRAGILE, ELECTRICAL EQUIPMENT, KEEP DRY
- Anwendungsumgebung & Adaptation
Anwendbare Szenarien
Industrielle Motorsteuerung: Start, stop and reverse control of three-phase asynchronous motors below 90kW
Lüfter & Water Pump System: HVAC, 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: Zentrale Klimaanlage, 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
Unsuitable Scenarios
DC circuit control (Select dedicated NXC-Z series DC contactors)
High-frequency operation over 1200 Zyklen pro Stunde (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
Fall 1: Central Air Conditioning Control of Large Shopping Mall
Anwendung: 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
Lösung: NXC-185-380V + NXR-185 thermal overload relay + intelligent PLC control system
Result: Trouble-free operation for 2 Jahre, 30% energy saving with frequency conversion, 50% maintenance cost reduction
Fall 2: Conveyor System for Auto Parts Production Line
Anwendung: 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
Lösung: NXC-185-380V for main drive + NXC-65-380V for auxiliary drive + safety relay
Result: Precise synchronous operation, IP20 protection against oil contamination, mechanische Lebensdauer bis zu 8 Millionen Zyklen
- Auswahlrichtlinien
Schnelle Regeln
Nennstrom: NXC-X ranging 6~630A, matching motor power about X/2 kW
Standard coil voltage: 220V / 380V; optional 110V / 24V / 48V
Hilfskontakt: 1NO+1NC for ≤80A; 2NO+2NC for ≥100A
Montage: Universal 35mm DIN rail for mainstream cabinets
Schutzklasse: IP20, indoor cabinet use only, outdoor exposed installation prohibited
Specific Application Scenarios of NXC185-380V
- Motorsteuerung
Start, 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
- Konstruktion & Infrastruktur
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
- Energie & Umweltschutz
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
- Bergbau & Metallurgie
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 Zyklen pro Stunde
Underrated use at altitude over 2000m
Heavy vibration environment without damping measures
Corrosive gas environment without protective treatment
