CHINT CJ20-160 AC 접촉기

모델 의미 & Basic Positioning

부분	의미
CJ	AC 접촉기 (China Contactor)
20	Design No. (20th generation)
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. It complies with GB/T 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)	Up to 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 × rated current (1에스)	Withstands motor starting surge
보조 접점	Standard 2NO+2NC (확장 가능)	For control circuit signaling
기계적 내구성	10 백만 개의 작업	전기적 내구성 (AC‑3): 1 백만 개의 작업

Mechanical Structure
Double‑break direct‑acting structure, excellent arc extinguishing
Main contacts made of silver‑based alloy, arc‑resistant and anti‑welding
Overall modular design, easy installation and maintenance
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)
Mounting hole diameter	9mm
무게	대략. 5.5kg

설치: Standard 35mm DIN rail or bolt fixing

4. 애플리케이션 & 선택 가이드

Scope of Application
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
For motor control, 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, similar dimensions
씨줄	A165‑30‑11	165에이, 직접 교체
슈나이더	LC1D15000M7C	150에이, suitable for light loads
슈나이더	LC1D18000M7C	180에이, 무거운 짐에 적합
이튼 (Moeller)	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, and maintenance

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	Mechanical Endurance (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
Breaking	Strong, for frequent/ reverse starting	중간, normal duty	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, low failure rate, 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, mines
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.