Schneider Electric Compact NSX630H Micrologic 5.3 A Circuit Breaker

1. 서론

The Schneider Electric Compact NSX series circuit breakers and switch-disconnectors are designed for controlling and isolating electrical distribution circuits in both tertiary and industrial applications. The Compact NSX range offers high performance, a wide selection of trip units, and various display and communication modules to meet diverse system requirements.

This manual provides essential information for the safe and effective installation, operation, and maintenance of the Compact NSX630H Micrologic 5.3 A Circuit Breaker (Model LV432902).

2. 제품 오버view

The Compact NSX630H Micrologic 5.3 A Circuit Breaker is a robust device featuring 4 poles, suitable for both fixed and withdrawable installations. It incorporates an electronic trip unit for precise protection.

그림 2.1: 전면 view of the Schneider Electric Compact NSX630H Micrologic 5.3 A Circuit Breaker.

This image displays the main components of the circuit breaker, including the main body, the operating handle, the Micrologic 5.3 A trip unit with its display and control buttons, and the terminal connections. The "OFF" indicator is visible on the handle mechanism. Technical specifications such as voltage ratings (Ue, Ui, Uimp) and breaking capacities (Icu, Ics, HIC) are printed on the front label.

2.1 Key Components and Indicators

• 작동 핸들: Used to manually switch the circuit breaker ON or OFF. Features a clear "OFF" indicator.
• Micrologic 5.3 A Trip Unit: An electronic trip unit providing advanced protection functions. It includes a digital display and control buttons for setting parameters.
• 디스플레이 화면: Shows current settings, measurements, and status information (e.g., "630 A" for rated current).
• 제어 버튼: "Mode" and "OK" buttons for navigating menus and confirming settings on the Micrologic unit.
• Trip Indicators: Visual indicators for trip status (e.g., "Trip" LED).
• 터미널 : Connections for electrical conductors, designed for secure and reliable wiring.
• 등급 라벨: Provides essential electrical specifications such as rated voltage (Ue, Ui), impulse withstand voltage (Uimp), and ultimate breaking capacity (Icu, Ics) at various voltag에스.

3. 설정 및 설치

Installation of the Compact NSX630H circuit breaker should only be performed by qualified personnel in accordance with all local and national electrical codes and regulations. Ensure power is disconnected before beginning any installation work.

3.1 장착

The circuit breaker can be installed in either a fixed or withdrawable configuration. Refer to the specific mounting instructions provided with the mounting accessories for detailed steps.

3.2 전기 연결

• Connect the incoming and outgoing power cables to the designated terminals. Ensure proper torque is applied to all terminal screws to prevent loose connections and overheating.
• 볼륨을 확인하세요tage and frequency of the electrical system match the ratings of the circuit breaker (e.g., 50/60 Hz, up to 690V).
• Ensure correct phase sequence and neutral connection (indicated by 'N' on the breaker).

3.3 Trip Unit Configuration (Micrologic 5.3 A)

The Micrologic 5.3 A trip unit allows for precise adjustment of protection parameters. Use the "Mode" and "OK" buttons to navigate the display and set the following:

• Ir (Long-time protection): Adjustable rated current from 250A to 630A. This setting determines the overload protection threshold.
• tr (Long-time delay): Time delay for long-time protection.
• Isd (Short-time protection): Short-circuit protection threshold, adjustable as a multiple of Ir.
• tsd (Short-time delay): Time delay for short-time protection.
• li (Instantaneous protection): Instantaneous short-circuit protection threshold.

Refer to the detailed Micrologic 5.3 A user guide for advanced programming and communication module (RS485 or Ethernet) setup, if applicable.

4. 사용 설명서

4.1 켜기/끄기

• To switch the circuit breaker ON, push the operating handle upwards until it latches.
• To switch the circuit breaker 끄다, push the operating handle downwards until it latches. The "OFF" indicator will be visible.

4.2 트립 표시 및 재설정

In the event of an overload or short-circuit, the circuit breaker will automatically trip, moving the operating handle to an intermediate position (between ON and OFF) and illuminating the "Trip" indicator (if present). To reset the breaker after a trip:

1. Identify and rectify the cause of the trip (e.g., overload, short-circuit).
2. Fully push the operating handle downwards to the OFF position.
3. Then, push the operating handle upwards to the ON position.

If the breaker trips immediately after resetting, do not attempt to re-engage it without further investigation of the electrical circuit.

5. 유지관리

Regular maintenance ensures the longevity and reliable operation of your circuit breaker. Always disconnect power before performing any maintenance.

• 시각적 검사: 회로 차단기를 주기적으로 검사하여 물리적 손상, 변색, 느슨한 연결 또는 과도한 먼지 축적의 징후가 있는지 확인하세요.
• 청소: Use a dry, lint-free cloth to gently clean the exterior of the circuit breaker. Do not use abrasive cleaners or solvents.
• 터미널 확인: Annually check the tightness of all terminal connections. Loose connections can lead to overheating and potential failure.
• 작동 점검: Periodically operate the circuit breaker manually (ON/OFF) to ensure smooth mechanical action.

For detailed maintenance procedures, consult the comprehensive technical documentation provided by Schneider Electric.

6. 문제 해결

7. 사양

8. 보증 및 지원

Specific warranty information for the Schneider Electric Compact NSX630H Micrologic 5.3 A Circuit Breaker (Model LV432902) is not provided in the available product data. For detailed warranty terms and conditions, please refer to the official Schneider Electric web사이트를 방문하거나 고객 지원팀에 직접 문의하세요.

Information regarding the availability of spare parts for this product is currently unavailable. For technical support, service, or inquiries about spare parts, please contact Schneider Electric customer service or your local authorized distributor.