CDM6I-400S/3300 400A塑殼斷路器產品介紹（中英文）
中文版：
CDM6I-400S/3300 400A塑殼斷路器是一款專為低壓配電系統設計的電力保護裝置，適用于交流50Hz、額定工作電壓至690V的配電網絡。產品采用模塊化結構設計，核心部件包含精密電磁脫扣機構與熱雙金屬片過載保護系統，可實現對線路的過載、短路等故障的快速響應。
殼體采用高強度工程塑料一體成型工藝，具備優異的絕緣性能和機械強度。內部滅弧室采用多片式金屬柵片設計，能有效縮短電弧停滯時間，提升分斷可靠性。產品額定電流涵蓋400A規格，具備3300A分斷能力，能滿足常規工業配電場景需求。操作機構采用三位置指示設計（接通/分斷/脫扣），直觀顯示設備運行狀態。
該產品支持水平或垂直安裝方式，母排連接端采用鍍銀處理工藝，有效降低接觸電阻。模塊化附件設計支持加裝輔助觸點、分勵脫扣器等擴展功能。適用于建筑配電、機械設備、新能源系統等場景的線路主干保護，可為電力系統的穩定運行提供基礎保障。
在產品設計中注重使用安全性，采用全封閉式結構配合隔離擋板設計，有效防止異物侵入。手柄操作區域符合人體工學原理，配備防誤觸安全鎖孔。通過優化內部元器件布局，使產品在保持緊湊體積的同時，確保各功能單元散熱均衡。
英文版：
CDM6I-400S/3300 400A Molded Case Circuit Breaker is a protective device developed for low-voltage distribution systems, suitable for AC 50Hz networks with rated operational voltage up to 690V. Featuring modular construction, its core components include precision electromagnetic trip mechanism and thermal bimetal overload protection system, enabling rapid response to line faults such as overload and short circuit.
The enclosure adopts high-strength engineering plastic formed by integral molding process, demonstrating excellent insulation performance and mechanical durability. The arc extinguishing chamber incorporates multi-layer metal grid design, effectively reducing arc duration and enhancing breaking reliability. With rated current up to 400A and breaking capacity of 3300A, this product meets the requirements of general industrial power distribution scenarios. The three-position indicator (ON/OFF/TRIP) provides intuitive status monitoring.
Supporting both horizontal and vertical installation, the busbar connection terminals feature silver-plated treatment to minimize contact resistance. Modular accessory design allows integration of auxiliary contacts and shunt trip units. Suitable for main circuit protection in building power distribution, mechanical equipment, and renewable energy systems, it provides fundamental safeguards for electrical network stability.
Safety considerations are emphasized through fully enclosed structure and isolation barrier design, preventing foreign object intrusion. The ergonomic handle with safety lock hole ensures operational security. Optimized internal component layout achieves compact dimensions while maintaining balanced heat dissipation across functional units.
（中英文合計約650字）
