المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
CJX2-3210 is a 3-pole 32A موصل التيار المتردد from CHINT CJX2 series, مع 3 NO main poles + 1 NO auxiliary contact.
It is suitable for controlling 15kW motors at AC-3 380V. Coil voltages include 220V/380V and others.
Direct replacement models include Schneider LC1N3210, Siemens 3RT6035-1AN20, إلخ.
- شرح النموذج & Basic Positioning
| Model Part | معنى |
| CJX2 | CHINT AC contactor series (equivalent to Schneider LC1‑D series) |
| 32 | Rated operational current 32A (AC‑3 utilization category at 400V) |
| 10 | اتصالات مساعدة: 1 لا + 0 نورث كارولاينا |
تحديد موضع المنتج:
Industrial‑grade general‑purpose AC contactor, suitable for frequent starting and control of AC motors.
Can form a magnetic starter with thermal overload relays for motor protection.
- المعلمات التقنية الرئيسية
| غرض | مواصفة |
| Rated operational voltage | Up to 690V AC (50/60هرتز) |
| Rated operational current | 32أ (AC‑3 400V), thermal current Ith = 50A |
| Controlled power | 15كيلوواط (AC‑3 380V), 21أ (AC‑3 660V) |
| Auxiliary contact | 1 لا, rated 5A/220V AC |
| Coil voltage | خياري: 220V/380V/110V/36V/24V AC |
| Insulation characteristics | UI = 660V, compliant with GB14048.4 / IEC60947‑4‑1 |
| ميكانيكية / electrical life | 10 مليون مرة / 1 مليون مرة (AC‑3) |
| أبعاد (الطول × العرض × الارتفاع) | 83×58×101 mm |
| تصاعد | سكة DIN القياسية مقاس 35 مم |
- الميزات الهيكلية & مواد
- Silver alloy contacts: Excellent conductivity and arc resistance, ensuring reliable switching.
- 32‑sheet silicon steel core: Reduces hysteresis loss, smoother pull‑in, stable operation.
- Flame‑retardant housing: Meets V0 flame rating, improves safety.
- Clear side marking: نموذج, الجهد االكهربى, شهادة سي سي سي, إلخ.
- التطبيقات
- Industrial automation: Motor control, المشجعين, مضخات, الضواغط.
- Building electrical: التدفئة والتهوية وتكييف الهواء, fire pumps, exhaust fans.
- Agricultural machinery: Irrigation, feed processing equipment.
- Power systems: Remote circuit control in distribution panels.
- Typical matching: Long‑running oil station motors, unidirectional equipment (no NC auxiliary required).
- Comparison Within CJX2 Series
| نموذج | التصنيف الحالي | Aux. Contacts | AC‑3 380V Power | أبعاد (مم) |
| CJX2‑0910 | 9أ | 1 لا | 4كيلوواط | 73×47×82 |
| CJX2‑1810 | 18أ | 1 لا | 7.5كيلوواط | 73×47×82 |
| CJX2‑2510 | 25أ | 1 لا | 11كيلوواط | 83×58×96 |
| CJX2‑3210 | 32أ | 1 لا | 15كيلوواط | 83×58×101 |
| CJX2‑4011 | 40أ | 1 لا + 1 نورث كارولاينا | 18.5كيلوواط | 128×79×116 |
| CJX2‑6511 | 65أ | 1 لا + 1 نورث كارولاينا | 30كيلوواط | 128×79×116 |
- Cross‑Brand Replacements
| ماركة | نموذج الاستبدال | التوافق |
| شنايدر | LC1N3210M7N / LC1R3210M5N | Same dimensions & parameters |
| سيمنز | 3RT6035‑1AN20 (domestic type) | Functionally equivalent, mounting compatible |
| ايه بي بي | A145‑30‑11 (32A class) | Aux. can be configured as 1 لا |
| لذيذ | CJX2‑3210 | Fully interchangeable |
| تشانغشو التبديل | CK3‑3210 | Same performance & parameters |
- اختيار & Application Notes
- Coil voltage: Selected per control circuit (commonly 220V / 380V).
- مطابقة التحميل: 32A ≈ 15kW at AC‑3 380V; avoid overload.
- Aux. contact expansion: F4‑11 or similar modules can be added.
- Protection coordination: Used with NR2 series thermal relays (e.g. NR2‑36) for overload protection.
- Environment: Operating temperature ‑5°C ~ +40°C; avoid dust & corrosive gas.
Packing: 4 pcs/box, 32 pcs/carton
Comparison of CHINT Contactor Series
Overview:
CHINT contactors are divided into:
Classic (CJX2/CJ20/CJX8), Upgraded (NXC/NC5), High‑Power (NC8), DC Special (CJZ8/NCZ5).
NXC fully replaces CJX2 with better performance; NC5 focuses on intelligence & modularity; NC8 covers ultra‑high current; CJZ8 is for DC control.
Priority: NXC / NC5; use special series for special applications.
- Series Positioning & استبدال
| مسلسل | Positioning | Replaced By / Replaces | الميزات الرئيسية |
| CJX2 | Classic general | Fully replaced by NXC | Cost‑effective, simple structure, flexible aux. اتصالات |
| NXC | New generation | Replaces CJX2, upgraded | High efficiency, long life, standard 1NO+1NC, strong modularity |
| NC5 | Smart & غالي | High‑end market | Wide temp ‑25°C~+55°C, تواصل, complex automation |
| NC8 | High‑power heavy‑duty | Independent, up to 1000A | Up to 1000A AC‑3 415V, for large motors & heavy industry |
| CJX8 | Traditional heavy‑duty | Partially replaced by NC8 | Direct‑operated double break, suitable for legacy retrofits |
| CJ20 | Traditional general | Replaced by NXC/NC5 | Mature structure, low cost, civil & light industry |
| NXC‑XMG | Special load | Independent | For fans & مضخات, high energy saving |
| CJZ8/NCZ5 | DC dedicated | Independent | Enhanced arc extinguishing, new energy & energy storage |
- المعلمات التقنية الرئيسية
2.1 Basic Electrical Data
| مسلسل | النطاق الحالي | الجهد المقنن | AC‑3 380V Power | Standard Aux. Contacts |
| CJX2 | 9A~95A | Up to 690V | 0.75kW~45kW | Below 32A: 1NO/1NC; ≥40A:1NO+1NC |
| NXC | 6A~630A | Up to 690V | 0.37kW~315kW | Full range: 1NO+1NC |
| NC5 | 6A~630A | Up to 690V | 0.37kW~315kW | 1NO+1NC, expandable to 6NO+6NC |
| NC8 | 6A~1000A | Up to 690V | 0.37kW~500kW | 2NO+2NC, expandable to 6NO+6NC |
| CJX8 | 9A~250A | Up to 660V | 4kW~110kW | 3NO+1NO/1NC or 4NO |
| CJ20 | 10A~630A | Up to 660V | 5.5kW~315kW | 1NO+1NC |
2.2 Life & Environment
| مسلسل | الحياة الميكانيكية | الحياة الكهربائية (AC‑3) | Operating Temp | تصاعد |
| CJX2 | 10 million | 1 million | ‑5°C~+40°C | 35mm DIN / screw |
| NXC | 12 million | 1.2 million | ‑25°C~+55°C | 35mm DIN / screw |
| NC5 | 15 million | 1.5 million | ‑25°C~+55°C | 35mm DIN / screw |
| NC8 | 10 million | 0.8 million (high current) | ‑25°C~+55°C | Mainly screw |
| CJ20 | 8 million | 0.8 million | ‑5°C~+40°C | Screw |
- Structure & Functional Differences
3.1 CJX2 (Classic)
Structure: Direct‑operated single break, modular; F4 aux., F5 timer, NCF1 side aux. available.
Contacts: Silver alloy, 3P main, flexible aux. (10/01/11).
Coil: تيار متردد/تيار مستمر, 24V~380V.
3.2 NXC (Upgraded)
Optimized magnetic system, coil power ≈ 30% lower than CJX2.
Improved silver alloy contacts, better arc extinguishing.
Standard 1NO+1NC; supports aux., timer, mechanical interlock.
3.3 NC5 (Smart Premium)
Optional communication module (مودبوس, إلخ.) for IIoT.
Wide temperature, suitable for outdoor & harsh environments.
Enhanced insulation & short‑circuit withstand.
3.4 NC8 (High‑Power)
Enhanced arc chamber for high‑current breaking up to 1000A.
Optimized heat dissipation for heavy‑duty continuous operation.
Heavy‑duty mechanical structure, high vibration resistance.
3.5 CJX8 (Traditional Heavy‑Duty)
Direct‑operated double break; front‑connected or rear‑connected versions.
Up to 4 أقطاب (3 رئيسي + 1 aux or 4 رئيسي) for special applications.
3.6 DC Contactors
CJZ8: Low‑voltage DC (12V~220V), up to 40A, small DC loads.
NCZ5: High‑voltage DC (up to 1500V), up to 500A, new energy vehicles & energy storage.
Dedicated DC arc extinguishing structure.
- سيناريوهات التطبيق
| مسلسل | Best For | Typical Load | Not Recommended |
| CJX2 | Legacy retrofit, budget projects | Small motors ≤15kW, إضاءة, التدفئة | High‑end automation, harsh environments |
| NXC | Industrial automation, new projects | Medium motors ≤315kW, المشجعين, مضخات | Ultra‑large motors, special DC loads |
| NC5 | Smart factories, complex systems, outdoor | واسطة & large motors, production lines | Cost‑sensitive simple circuits |
| NC8 | Large industry, قوة, علم المعادن | Large motors ≤500kW, محولات | Small loads, civil buildings |
| CJX8 | Legacy maintenance, special control | Traditional machinery, special circuits | New smart projects |
| CJ20 | Civil, light industry, temporary power | AC units, مضخات, small machines | Frequent switching, high‑end automation |
| DC series | New energy, energy storage, rail | DC motors, batteries, chargers | AC loads |
- Selection Guide & Replacements
5.1 Selection Priority
- New projects: NXC (replaces CJX2)
- Smart/complex systems: NC5
- Ultra‑high power >315كيلوواط: NC8
- DC loads: CJZ8 / NCZ5
- Legacy retrofit: CJX2/CJ20/CJX8 or upgrade to NXC/NC5
5.2 Cross‑Series Replacement
| Original | Recommended Replacement | Advantage |
| CJX2‑09~95 | NXC‑06~100 | Standard 1NO+1NC, life +20%, power ‑30% |
| CJ20‑10~630 | NXC‑12~630 / NC8‑12~1000 | Better performance, modular, easier maintenance |
| CJX8‑09~250 | NC8‑06~250 | Better arc extinguishing, wide temperature |
5.3 Model Selection Tips
حاضِر: 32A ≈ 15kW; 63A ≈ 30kW; 100A ≈ 45kW at AC‑3 380V.
Aux. اتصالات: NXC has 1NO+1NC standard; CJX2 uses 10/01/11.
Coil: 220V/380V/110V/36V/24V AC/DC.
تصاعد: 35mm DIN preferred; screw for high power.
- Special Notes: CHINT CJX2‑3210
As a representative model of CJX2 series, CJX2‑3210 is a 3‑pole 32A AC contactor with 3 NO main contacts + 1 NO auxiliary contact, suitable for 15kW motor control at AC‑3 380V.
Common replacements:
CHINT NXC‑3210 (upgraded)
Schneider LC1N3210M7N
Siemens 3RT6035‑1AN20
ABB A145‑30‑11 (32A class)
