المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
تحديد المواقع الأساسية: The Chint CJX2-9511 is a 3-pole موصل التيار المتردد with a rated current of 95A, equipped with 1 مفتوحة عادة (لا) + 1 مغلقة عادة (نورث كارولاينا) اتصال مساعد. It is suitable for AC 50/60Hz circuits, mainly used for remote switching on/off of circuits, frequent starting and control of three-phase AC motors. It can be combined with a thermal overload relay to form an electromagnetic starter for overload protection.
- تفسير النموذج
| الجزء النموذجي | معنى |
| CJX2 | Chint AC contactor series code (equivalent and compatible with Schneider LC1D series) |
| 95 | Rated operating current of 95A (under AC-3 utilization category at 400V) |
| 11 | Auxiliary contact configuration: 1 Normally Open (لا) + 1 Normally Closed (نورث كارولاينا) |
- المعلمات التقنية الأساسية
| Parameter Item | Specification Details |
| Contactor Type | AC coil contactor, 3-اتصالات القطب الرئيسية + 1لا + 1NC auxiliary contacts |
| تصنيف جهد التشغيل | الدائرة الرئيسية: AC 50/60Hz, up to 690V |
| تصنيف التشغيل الحالي | 95A at AC-3, 400V; 132A at AC-1, 400V |
| Coil Voltage Options | AC 24V/36V/110V/220V/380V, compatible with 50/60Hz |
| Coil Power Consumption | Pull-in power approx. 1800فرجينيا, القدرة القابضة تقريبا. 180فرجينيا |
| تصنيف الجهد العزل | 800V (complies with IEC 60947-4-1 معيار) |
| Rated Impulse Withstand Voltage | 8كيلو فولت |
| الحياة الميكانيكية | تقريبًا 10 مليون عملية |
| الحياة الكهربائية | تقريبًا 1 million operations at AC-3, 400V, 95أ |
| تردد التشغيل المقدر | Up to 1200 العمليات في الساعة (AC-3 utilization category) |
| Control Circuit Voltage | Coil voltage range: 85%~110% of rated voltage |
| طريقة التركيب | تركيب السكك الحديدية DIN (35mm standard rail) or screw fixing |
| طريقة الأسلاك | Double-hole terminal blocks, main circuit applicable wire cross-section: 16~35mm² |
| درجة حرارة التشغيل | -5°C ~ +40°C (can reach +40°C when relative humidity ≤50%, derating required at higher humidity) |
| فئة الحماية | IP20 (protects against finger contact and solid foreign objects with diameter ≥12mm) |
| وزن | Approximately 1.2kg |
ثالثا. الميزات الوظيفية
- High Compatibility Design: Same dimensions as Schneider LC1D series, directly interchangeable, compatible with various functional accessories
- High-efficiency Energy-saving Coil: Adopts high-quality electromagnetic materials, pull-in/holding power ratio up to 10:1, with significant energy-saving effect
- Multiple Protection Mechanisms:
Built-in overvoltage suppressor in the coil to extend coil service life
Main contacts made of silver alloy material, arc-resistant and anti-welding, improving reliability
Dust cover design, مناسبة للبيئات الصناعية القاسية
- Flexible Wiring System: Double-hole terminal block design, more secure wiring, reducing loosening risk
- Wide Voltage Adaptability: Wide coil voltage range (85%~110%), adapting to power grid fluctuations
- Easy Installation: Standard DIN rail mounting, space-saving and convenient for quick replacement
- Application Scope
The CJX2-9511 contactor is suitable for the following industrial scenarios:
- التحكم في المحركات:
Direct start/stop control of three-phase asynchronous motors (تقريبا. 45kW at 380V)
Control of continuous operation equipment such as fans, water pumps and compressors
Control of frequent starting equipment such as conveyors and mixers
- Electrical Control Systems:
Remote switching on/off of circuits in power distribution systems
Control of electric heating equipment and lighting systems
Combined with thermal overload relays (على سبيل المثال, NR2 series) to form electromagnetic starters for overload protection
- الأتمتة الصناعية:
Executive component of PLC control systems
Bypass contactor for soft starters and frequency converters
Electrical control of machine tools, printing machinery and packaging equipment
- توصيات الاختيار
5.1 نقاط الاختيار الرئيسية
| Selection Factor | Recommended Considerations |
| نوع التحميل | Select AC-3 rated current for motor loads; select AC-1 rated current for resistive loads |
| مطابقة الطاقة | Can control ≤45kW three-phase asynchronous motors at 380V (ايه سي-3) |
| الجهد لفائف | Select according to control circuit power supply (220V/380V commonly used, 24V/36V/110V optional for special occasions) |
| جهات الاتصال المساعدة | 1NO+1NC meets basic control needs; auxiliary contact modules can be added for more contacts |
| Operating Frequency | For frequent operation (>600 مرات / ساعة), derating is recommended or special high-frequency contactors should be selected |
| الظروف البيئية | For high-temperature, humid and dusty environments, derating or protection class upgrade should be considered |
5.2 Alternative Models and Compatibility
| النموذج البديل | ماركة | وصف الفرق | التوافق |
| NXC-9511 | شينت (Kunlun Series) | Upgraded version of CJX2 series with improved performance and compatible dimensions | Fully compatible, can be directly replaced |
| LC1D9511 | شنايدر | Original design with consistent performance | Installation and electrically compatible, interchangeable |
| TGC1-9511 | Tengen | Same specification product with more competitive price | Installation compatible, consistent functions |
| CJX2-9501/9510 | شينت | Different auxiliary contact configurations (01: 1نورث كارولاينا; 10: 1لا) | Consistent main circuit parameters, different auxiliary contacts |
5.3 Recommended Supporting Products
- Thermal Overload Relay: NR2-93 (setting current 63~93A), directly pluggable with CJX2-9511 to form an electromagnetic starter
- حماية الزائد: Motor protectors (على سبيل المثال, JD-5) can be optionally configured for more comprehensive protection
- Auxiliary Contact Expansion: Auxiliary contact modules such as F4-11 and F4-22 to increase the number of contacts
- Surge Suppression: RC snubber or varistor to protect coils and contacts
- Troubleshooting Guide
6.1 Common Faults and Solutions
| ظاهرة الخلل | الأسباب المحتملة | Troubleshooting Steps |
| فشل المقاول في السحب | 1. Coil not powered; 2. Low coil voltage; 3. Burned coil; 4. Mechanical jamming | 1. Check control circuit power supply and wiring; 2. Measure coil voltage (should be ≥85% of rated value); 3. Measure coil resistance with multimeter (normal value approx. several hundred ohms); 4. Check if iron core is jammed and remove foreign objects |
| Loud noise after pull-in | 1. Oil/dust on iron core end face; 2. Broken shading coil; 3. Low coil voltage | 1. Clean iron core end face; 2. Check shading coil (replace iron core if broken); 3. Adjust coil voltage to rated range |
| Contact overheating/ablation | 1. عملية الزائد; 2. Poor contact connection; 3. Arc suppression failure | 1. Check load current and replace with contactor of larger capacity; 2. Clean contacts and replace if severely ablated; 3. Check arc chute and ensure it is intact |
| Poor auxiliary contact connection | 1. Contact oxidation; 2. Spring fatigue; 3. الأسلاك فضفاضة | 1. Clean contacts; 2. Replace auxiliary contact module; 3. Tighten wiring terminals |
| Coil burnout | 1. Excessively high voltage; 2. Frequent starting; 3. High ambient temperature | 1. Check power supply voltage and install overvoltage protection; 2. Reduce starting frequency or select high-frequency contactor; 3. Improve ventilation and lower ambient temperature |
6.2 Contactor Status Judgment
| البند التفتيش | Normal Status | Abnormality Judgment |
| Coil Resistance | تقريبا. 300~800Ω (depending on coil voltage) | Resistance of 0 (ماس كهربائى) or infinity (open circuit) is abnormal |
| Main Contact Voltage Drop | ≤50mV when closed | Excessively high voltage drop indicates poor contact connection |
| Iron Core Pull-in | No obvious noise and slight vibration | Loud noise and obvious vibration are abnormal |
| Arc Chute | Intact without carbonization marks | Severe damage or carbonization requires replacement |
سابعا. Installation and Maintenance Precautions
- التحضير قبل التثبيت:
Confirm that the model matches the load (حاضِر, الجهد االكهربى, اتصالات مساعدة)
Check for no external damage and complete accessories (arc chute, mounting bracket)
Select appropriate installation location (well-ventilated, away from heat sources and vibration sources)
- مواصفات التثبيت:
Install after power cut, live operation is strictly prohibited
Standard DIN rail mounting (35مم), fix firmly
توصيلات الدائرة الرئيسية: wire cross-section 16~35mm², double-hole wiring to ensure firm connection
Control circuit wiring: wire cross-section 0.75~1.5mm², avoid laying in the same slot as main circuit
Installation direction: vertical installation (iron core upward), tilt ≤5°
- النقاط الرئيسية للصيانة:
Regular inspection (recommended once a month):
Contact status (presence of ablation and oxidation)
Coil temperature (should not exceed ambient temperature +40°C)
Wiring terminals (presence of loosening and overheating)
Arc chute (presence of damage and carbonization)
Cleaning: Remove dust with dry brush, solvent use is prohibited
Lubrication: Oil application is prohibited on iron core end face, keep clean and dry
Replacement Cycle:
الحياة الميكانيكية: تقريبا. 10 مليون عملية, replacement is recommended after reaching the limit
الحياة الكهربائية: تقريبا. 1 مليون عملية (ايه سي-3), replacement cycle should be shortened for frequent starting
ثامنا. ملخص
The Chint CJX2-9511 contactor is an industrial-grade contactor with high cost performance and high compatibility. With its 95A rated current and 1NO+1NC auxiliary contact configuration, it is widely used in the control of three-phase motors below 45kW and electrical systems. أثناء الاختيار, comprehensive consideration should be given to factors such as load type, power and coil voltage. Installation and maintenance must strictly follow specifications to ensure safe and reliable operation. Compared with the Kunlun series NXC-9511, the CJX2-9511 has a more competitive price; compared with the Schneider LC1D9511, it has higher cost performance, making it an ideal choice in the field of industrial automation.
