【中文介紹】
CDF1-20系列塑殼斷路器是一款專為低壓配電系統設計的智能化電氣保護裝置，采用表面安裝方式并集成防護外殼結構，適用于交流50Hz、額定電壓至400V的電路中。本產品額定電流10A，3極設計，可有效控制三相供電線路的通斷，為工業控制、商業建筑及住宅配電場景提供可靠的線路保護解決方案。
產品采用緊湊型模塊化設計，表面安裝結構簡化了布線流程，節省安裝空間的同時提升施工效率。防護外殼采用高阻燃工程材料一體成型，具備IP40防護等級，可抵御灰塵侵入和意外觸碰，適應潮濕、多塵等復雜環境下的穩定運行。內部搭載精密電磁脫扣機構與熱敏雙金屬片聯動系統，能夠快速響應過載及短路故障，分斷能力達6kA，有效切斷故障電流并防止電氣設備損壞。
觸頭系統采用銀合金復合材料，接觸電阻低且耐電弧燒蝕，配合滅弧室優化設計，顯著提升電氣壽命。操作機構具備明顯的分合閘指示功能，支持手動快速分閘與遠程控制擴展，滿足多種場景的靈活應用需求。產品適用于電動機保護、照明配電、設備電源控制等場景，特別適合空間受限的配電箱柜升級改造項目。
日常維護便捷，防護外殼可拆卸設計便于狀態檢查與觸點清潔，建議定期測試脫扣功能以確保保護靈敏度。通過結構優化與材料升級，本產品在保證安全性的同時實現低能耗運行，是現代化電力系統節能化管理的理想選擇。
【English Introduction】
The CDF1-20 series molded case circuit breaker is an intelligent electrical protection device specifically designed for low-voltage distribution systems. Featuring surface-mounted installation and an integrated protective enclosure, it is suitable for circuits with AC 50Hz and rated voltage up to 400V. With a rated current of 10A and 3-pole configuration, this product effectively controls power supply circuits in three-phase systems, providing reliable line protection for industrial control systems, commercial buildings, and residential power distribution applications.
The compact modular design combines surface-mount technology with space-saving advantages, significantly improving installation efficiency. The protective enclosure, molded from high flame-retardant engineering plastics, achieves IP40 protection level, effectively preventing dust intrusion and accidental contact while ensuring stable operation in humid or dusty environments. Equipped with precision electromagnetic trip mechanism and thermal bimetal protection system, it delivers rapid response to overload and short-circuit faults, with breaking capacity up to 6kA for reliable fault current interruption.
Silver-alloy composite contacts with low resistance and arc-erosion resistance work in synergy with optimized arc-extinguishing chambers to enhance electrical durability. The visible switching status indicator and dual operation modes (manual quick-break and remote control compatibility) ensure flexible application across various scenarios. Ideal for motor protection, lighting distribution, and equipment power control, it particularly suits electrical cabinet upgrades with space constraints.
Maintenance-friendly design allows easy enclosure removal for contact inspection and cleaning. Regular trip testing is recommended to maintain protection sensitivity. Through structural optimization and material innovation, this product achieves energy-efficient operation while maintaining safety performance, making it an optimal choice for modern power system management.
（Total words: 中文 438字 / 英文 249詞）
