접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
1.Core Positioning and Scope of Application
The CHINT NP4 Series is an industrial-grade control device with a 22mm mounting diameter. It is suitable for circuit control systems with AC 50/60Hz, rated voltage up to 380V, and DC operating voltage up to 220V. It serves as a control component for magnetic starters, contactors, 릴레이, and other electrical circuits. Push buttons with indicator lights can also be used for light signal indication scenarios.
The series complies with the GB/T 14048.5 기준, with an IP rating of IP40, and some models with indicator lights can reach IP54.
- Model Naming Rules and Classification
Model Format
`NP4-□□□/□`
| Code Position | 의미 | 예 |
| 1st Digit | Number of Normally Open (아니요) Contacts | 0 = None, 1 = 1 아니요, 2 = 2 아니요 |
| 2nd Digit | Number of Normally Closed (NC) Contacts | 0 = None, 1 = 1 NC, 2 = 2 NC |
| 3rd Digit | Type Code | BN = Flat Button, GN = Raised Button, MD = Mushroom Head, XB = Rotary Handle, M = Emergency Stop |
| 4th Digit | Auxiliary Specification | ZS = Latching, D = With Indicator Light, /1 = 1 아니요, /2 = 1 NC, /3 = 1 아니요 + 1 NC |
Core Classification
| 유형 | Representative Model | 기능적 특징 | 응용 시나리오 |
| Self-Resetting Push Button | NP4-11BN (Flat Button), NP4-11GN (Raised Button) | Conducts when pressed, resets when released | Jog control of equipment, temporary signal triggering |
| Latching Push Button | NP4-11BNZS (Flat Button Latching) | Locks in conduction state when pressed, resets when pressed again | Long-term operation control of equipment, mode switching |
| Push Button with Indicator Light | NP4-11DN (Raised Button with Light), NP4-01DN | Built-in LED light, integrates control and indication functions | Power status indication, 결함 경보 |
| Mushroom Head Push Button | NP4-01M/1 (Emergency Stop), NP4-11MD | Large-diameter mushroom head for clear and visible operation | Emergency shutdown, safety control |
| Selector Switch | NP4-10XB (2-Position Latching), NP4-20X/31 (3-Position Latching) | Multi-position switching with latching retention | Function mode selection, circuit conversion |
III. 주요 기술 매개변수
| 매개변수 항목 | 사양 값 | 비고 |
| 정격 작동 전압 | 교류 380V, DC 220V | Control circuit voltage |
| 정격 작동 전류 | 10에이 | Rated contact current |
| 기계적 수명 | Self-resetting type: 1,000,000 사이클; Latching type: 300,000 사이클; Selector type: 100,000 사이클 | IEC를 준수합니다 60947-5-1 |
| 전기적 수명 | 500,000 사이클 | AC-15: 230V/2.5A, DC-13: 24V/0.5A |
| LED Light Parameters | 전압: 6V/12V/24V/36V/110V/220V | Colors: Red, Green, Yellow, 파란색, 하얀색 |
| Mounting Dimension | 22mm (Panel Opening Diameter) | Compatible with standard industrial panels |
| 환경 조건 | Temperature: -5℃ ~ +40℃; 습기: ≤90% (at 25℃) | Dust-free and non-corrosive gas environment |
- Core Functions and Characteristics
- 연락 시스템: Adopts silver alloy contacts with excellent conductivity, 낮은 접촉 저항, strong arc oxidation resistance, and long service life.
- Operating Mechanism: Self-resetting models are equipped with built-in springs for reliable resetting; latching models use a mechanical locking structure for precise positioning.
- Protection Design: The button head adopts a sealed structure, which effectively prevents dust and moisture from entering and ensures electrical safety.
- 쉬운 설치: Fixed on the panel via nuts, with adjustable mounting depth to adapt to panels of different thicknesses.
- Rich Color Options: Available in a variety of colors including red, green, yellow, blue, white, and black to meet different signal indication requirements.
- 일반적인 애플리케이션 시나리오
| Industry Sector | Specific Applications | Recommended Models |
| 산업 자동화 | Start-stop control of production line equipment, conveyor belt control | NP4-11BNZS (Latching), NP4-11DN (With Indicator Light) |
| Mechanical Equipment | Machine tool operation, hydraulic system control | NP4-01M/1 (Emergency Stop), NP4-10XB (Selector) |
| Building Electricals | Fan control, water pump start-stop | NP4-11BN (Self-resetting), NP4-11GN (Raised Button) |
| Security Systems | Emergency alarm, access control | NP4-01M/1 (Emergency Stop), NP4-11MD (Mushroom Head) |
| Instrument Control | Instrument parameter setting, mode switching | NP4-20X/31 (3-Position Selector) |
- Selection and Installation Guide
선택 단계
- Determine Control Requirements: Self-resetting (temporary control) or latching (long-term control).
- Select Contact Configuration: 1아니요 (평상시 열림), 1NC (평상시 닫힘), or 1NO+1NC (Combination Contact).
- Consider Additional Functions: Whether indicator light or emergency stop function is required.
- Match Installation Environment: Panel thickness and IP rating requirements.
Installation Points
- The panel opening diameter shall be 22mm, and the edge of the opening must be smooth and burr-free.
- 설치 중, adjust the nut position first, then insert the button from the back of the panel and tighten the nut to fix it.
- Distinguish between the control circuit (AC/DC) and the indicator light circuit during wiring (pay attention to the LED voltage).
- Ensure that the wiring terminals are tightened to avoid poor contact caused by loosening and heating.
Ⅶ. Common Model Quick Reference Table
| 모델 | 유형 | 연락처 구성 | 기능 | 색상 |
| NP4-11BN | Flat Button | 1아니요+1NC | Self-resetting | Black/White |
| NP4-11BNZS | Flat Button | 1아니요+1NC | Latching | Red/Green |
| NP4-11DN | Raised Button with Light | 1아니요+1NC | Self-resetting + Indication | Red (24V LED) |
| NP4-01M/1 | Emergency Stop | 1아니요 | Latching Emergency Stop | Red |
| NP4-10XB | Rotary Handle | 1아니요 | 2-Position Latching | Black |
| NP4-20X/31 | Selector Switch | 2아니요 | 3-Position Latching | Red/Green |
Ⅷ. 유지 관리 및 문제 해결
- 정기점검: Check the flexibility of button operation and whether there is contact ablation every quarter.
- 청소 및 유지관리: Wipe the button surface with a dry cloth; avoid using corrosive cleaning agents.
- 문제 해결:
– Button fails to reset: Check if the spring is damaged; replace the spring or the entire button assembly.
– 접촉불량: Clean the contacts or replace the contact assembly.
– Indicator light not working: Check the LED lamp bead, power supply, and wiring; replace damaged components.
With the characteristics of high reliability, rich functions, and easy installation, the CHINT NP4 Series push buttons are widely used in various industrial control scenarios. For selection, comprehensive consideration should be given to specific control requirements, contact configurations, and additional functions to ensure the safety and stability of equipment control.
