접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
모델 의미 & 기본 포지셔닝
| 부분 | 의미 |
| CJ | AC 접촉기 (China Contactor) |
| 20 | Design No. (20세대) |
| 160 | Rated operational current 160A (AC‑3 category) |
CHINT CJ20‑160 is a 3‑pole AC contactor, a main model in the CJ20 series, suitable for frequent operations such as motor control. GB/T를 준수합니다. 14048.4 and IEC/EN 60947‑4‑1 standards.
2. 핵심 기술 매개변수
전기적 성능
| 목 | 값 | 메모 |
| 정격 작동 전류 (AC‑3) | 160에이 | Controls motor power 85kW at 380V |
| 기존 열 전류 (이) | 200에이 | Long‑time permissible current in free air |
| 정격 절연 전압 (우이) | 690다섯 | Maximum voltage withstand class |
| 정격사용전압 (우에) | 최대 660V (50/60헤르츠) | 주회로 전압 범위 |
| Control coil voltage | 110V/127V/220V/380V etc. | 220V and 380V are common |
| 코일 전력 소비 | Inrush 855VA, Holding 85.5VA (50헤르츠) | Energy‑saving versions available |
| Rated operational frequency (AC‑3) | 1200 작업/시간 | 모터 제어에 일반적 |
| Making/breaking capacity | 10 × 정격 전류 (1에스) | Withstands motor starting surge |
| 보조 접점 | 표준 2NO+2NC (확장 가능) | For control circuit signaling |
| 기계적 내구성 | 10 백만 개의 작업 | 전기적 내구성 (AC‑3): 1 백만 개의 작업 |
기계구조
Double‑break direct‑acting structure, 우수한 아크 소화
Main contacts made of silver‑based alloy, arc‑resistant and anti‑welding
Overall modular design, 쉬운 설치 및 유지 관리
Compatible with RT16‑315 fuse protection
3. 장착 치수 & 무게
| 목 | 값 (mm) |
| 너비 (에이) | 146 |
| 키 (비) | 187 |
| 깊이 (기음) | 178 |
| 장착 구멍 간격 | 130×130 (±0.5) |
| 장착 구멍 직경 | 9mm |
| 무게 | 대략. 5.5kg |
설치: Standard 35mm DIN rail or bolt fixing
4. 애플리케이션 & 선택 가이드
적용 범위
1. AC 50/60Hz, power circuits up to 660V
2. Remote switching on/off, frequent control of three‑phase asynchronous motors
3. 열 과부하 릴레이와 결합 (예를 들어, NR2 시리즈) into magnetic starters for overload protection
4. Typical uses: 팬, 슬리퍼, 압축기, conveyors and other industrial equipment
선택 참고 사항
모터 제어용, select according to AC‑3 category (160A ≈ 85kW/380V)
Coil voltage must match control circuit (commonly 220V/380V)
Auxiliary contact quantity to meet control requirements (확장 가능)
Consider operating frequency and environment (온도, 습기, 고도)
5. International Brand Replacements
| 상표 | 교체 모델 | 호환성 |
| 지멘스 | 3RT2036‑1AP00 | Same current class, 유사한 치수 |
| 씨줄 | A165‑30‑11 | 165에이, 직접 교체 |
| 슈나이더 | LC1D15000M7C | 150에이, suitable for light loads |
| 슈나이더 | LC1D18000M7C | 180에이, 무거운 짐에 적합 |
| 이튼 (뮐러) | DIL M175 | 175에이, high performance match |
6. 작업 & 유지
1. Inspect integrity before installation, remove packaging
2. Ensure terminals are tightly secured to avoid overheating
3. 콘택트 마모를 정기적으로 점검하십시오.; replace silver alloy contacts at 1/3 thickness
4. Clean arc chute to remove carbon deposits
5. Do not use without arc chute to prevent arc short‑circuit
6. 코일 전압 범위: 85%–110% of rated value
7. CJ20 Series Model List
| 모델 | 정격전류 (에이) | 제어 전원 (kW/380V) | 이 (에이) |
| CJ20‑10 | 10 | 4.5 | 16 |
| CJ20‑16 | 16 | 7.5 | 25 |
| CJ20‑25 | 25 | 11 | 40 |
| CJ20‑40 | 40 | 22 | 63 |
| CJ20‑63 | 63 | 30 | 100 |
| CJ20‑100 | 100 | 55 | 140 |
| CJ20‑160 | 160 | 85 | 200 |
| CJ20‑250 | 250 | 132 | 315 |
| CJ20‑400 | 400 | 200 | 500 |
| CJ20‑630 | 630 | 315 | 800 |
The mechanical endurance of CHINT CJ20‑160 is 10 백만 개의 작업, the standard design index for no‑load cycles under normal conditions.
Additional Info
1. 전기적 내구성: Under AC‑3 (모터 제어), 1.2 million operations – lower due to arcing and contact wear
2. Series difference: CJ20‑10 ~ CJ20‑160: 10 백만 개의 작업; CJ20‑250/400/630: 6 백만 개의 작업
3. Life factors: Actual service life depends on frequency, 환경, 및 유지 보수
CHINT CJ20 Series: Core Advantages vs Other Series
The CJ20 series is a classic CHINT contactor line with strong advantages in heavy‑duty performance, 차단 용량, durability and compatibility, especially compared with CJX2, NC1 and CJ40 series.
1. Structural & 성능상의 이점
1.1 Excellent Breaking & Arc Extinguishing
Double‑break direct‑acting structure; models above 40A use ceramic longitudinal or grid arc chutes, better than CJX2
Breaking capacity up to 10× rated current (1에스), withstands heavy motor starting
Silver‑based alloy main contacts: low resistance, stable temperature rise
1.2 Long Mechanical & 전기적 내구성
| 시리즈 | 기계적 내구성 (160에이) | 전기적 내구성 (AC‑3) | 특징 |
| CJ20 | 10 백만 | 1 백만 | Full series 10M (250A+: 6중) |
| CJX2 | 6–10M | 0.6–1M | Smaller sizes lower |
| NC1 | 6–10M | 0.6–1M | Newer, better energy saving |
1.3 모듈식 & Versatile
Independent auxiliary contacts: standard 2NO+2NC, 확장 가능
Compatible with RT16‑315 fuses and protection modules
35mm DIN rail or bolt mounting
2. Advantages vs Other CHINT Series
2.1 vs CJX2 (Economic Type)
| 목 | CJ20 | CJX2 | 애플리케이션 |
| 헤비듀티 | Up to 630A, 315kW | Max 95A, ~45kW | CJ20 for large industrial equipment |
| 파괴 | Strong, for frequent/ reverse starting | 중간, 정상 근무 | CJ20 for crushers, mills |
| 환경 | Robust, dust/ heat resistant | 콤팩트, clean environments | CJ20 for metallurgy, 채광 |
2.2 vs NC1 (New Energy‑Saving)
Proven stable platform: decades of field use, 낮은 실패율, ideal for retrofit projects
AC/DC energy‑saving modules (≥63A): 저소음
Better price in same size
2.3 vs CJ40 (High‑Performance)
Wider compatibility with thermal relays (예를 들어, NR2)
Simpler installation & 유지, 표준 치수
3. Key Application Strengths
1. 고전력 모터: 85kW (160에이) to 315kW (630에이)
2. 빈번한 시동 & reversing: 최대 1200 작업/시간
3. Long‑distance control in large plants, 광산
4. 가혹한 환경: –25°C to +40°C, 먼지, 진동
Core Value of CJ20 Series
CJ20 stands out for maturity, 신뢰할 수 있음, heavy‑duty capability and strong breaking performance. It is the top choice for heavy industrial control. While slightly less compact or energy‑efficient than CJX2/NC1, it excels in robustness and durability for demanding traditional industry and equipment upgrades.
