Chint NXB63-2P/C1 miniature circuit breaker

Chint NXB63-2P/C1 is a ミニチュアサーキットブレーカー suitable for low-voltage power distribution systems. It belongs to the NXB series and is mainly used for overload and short-circuit protection. The following is a detailed analysis of its core information and application scenarios:

1. Technical Parameters and Functional Features
2. 基本パラメータ

極数 (2P): Controls both the live wire (L) and neutral wire (N) 同時に. It is suitable for 220V single-phase circuits and can achieve double-pole protection.

定格電流 (C1): 1あ, タイプ C トリップ曲線付き (instantaneous tripping when the current reaches 5-10 定格電流の倍). It is applicable to circuits sensitive to overload, such as lighting circuits and low-power equipment.

遮断容量: 10の (6kA for some models), which can quickly cut off short-circuit current to avoid equipment damage and fire risks.

定格電圧: 400Vと (for 2P models), GB/Tに準拠 10963.1 およびIEC 60898-1 標準, and has passed the CCC certification.

2. デザインの特徴

Modular Structure: DINレール取付に対応 (TH35-7.5 type) and can be combined with accessories such as auxiliary contacts and over/under-voltage release to expand its functions.

消弧技術: Adopts a fast arc extinguishing design, featuring high breaking speed, which reduces arc damage to contacts.

Temperature Compensation: Built-in bimetallic strip that automatically adjusts tripping characteristics according to ambient temperature, ensuring stable operation within the range of -35℃ to 70℃.

1. アプリケーション シナリオと一般的な構成
2. 応用分野

住宅用配電: Used for protecting low-power equipment such as lighting circuits and small electrical appliances (例えば, set-top boxes, routers).

Commercial and Industrial Sectors: Suitable for controlling power supply lines of signal circuits, sensors, or small precision instruments.

特別なシナリオ: Circuits that require strict restriction of overload current, such as laboratory equipment and medical instruments.

2. 設置上の注意事項

ワイヤー仕様: It is recommended to use copper wires with a cross-sectional area of 1-2.5mm². The terminal screws should be tightened (with a torque of 2.0N·m) to avoid overheating caused by poor contact.

Derating Use: When multiple circuit breakers are installed side by side, derating is required. 例えば, when 7-9 units are installed in parallel, the rated current should be reduced to 0.76 回.

環境要件: Avoid use in humid, 高温 (＞70℃) or high-altitude (＞2000m) environments; さもないと, the rated parameters need to be adjusted.

Ⅲ. Compliance and Alternative Solutions

1. 国際認証

– This model has passed CCC (中国の強制認証) and CE certification, ただし、UL認証は明確にマークされていません. If it needs to be used in North America, it is recommended to select Chint’s NB1G-63 series (compliant with UL 60947-2 標準) or other models with UL certification.

2. Recommended Alternative Models

NXB63-2P/C2: With a rated current of 2A, it is suitable for LED lighting or small chargers with slightly higher power.

NXB63-2P/C6: A 6A model that can be used for equipment such as smart sockets and small fans.

NB1G-63 Series: Equipped with over-voltage protection function, suitable for areas with large voltage fluctuations.

1. User Feedback and Common Issues
2. Actual Performance

– Users generally report that Chint’s NXB series circuit breakers are easy to install and highly reliable, and are widely used especially in home decoration.

– Low-current models (such as C1) perform stably in laboratories or with precision equipment, with no false tripping incidents.

2. 一般的な障害とトラブルシューティング

Failure to Close: Check if there is a short circuit at the load end, or replace the circuit breaker with the same specification.

Abnormally High Temperature: Ensure the wires are connected firmly, or increase the cross-sectional area of the wires to reduce resistance.

Failure to Reset After Tripping: It is necessary to investigate the cause of the fault (例えば, uneliminated short circuit) and contact a professional electrician for maintenance if necessary.

1. Purchase and Usage Recommendations
2. チャンネルの選択

– It is recommended to purchase through WhatsApp: 0086-13811255435 偽造品を避けるために.

– Pay attention to the anti-counterfeiting mark on the package; the authenticity can be verified through Chint’s official website.

2. Safety Tips

– Be sure to cut off the power supply before installation; live operation is strictly prohibited.

– Regularly check the status of the circuit breaker (例えば, 毎月テストボタンを押してください) to ensure the normal operation of the tripping function.

まとめ

Chint NXB63-2P/C1 is a cost-effective miniature circuit breaker. With its accurate overload protection, 高い信頼性, 柔軟な拡張性, it has become an ideal choice for low-voltage power distribution systems. In residential, コマーシャル, および産業シナリオ, it can effectively ensure circuit safety while meeting the needs of equipment with different power levels. If it needs to be used in North America, it is recommended to give priority to models with UL certification (such as the NB1G-63 series) and strictly comply with local electrical regulations.