CDM6I-400S/3300 400A塑壳断路器产品介绍（中英文）
中文版：
CDM6I-400S/3300 400A塑壳断路器是一款专为低压配电系统设计的电力保护装置，适用于交流50Hz、额定工作电压至690V的配电网络。产品采用模块化结构设计，核心部件包含精密电磁脱扣机构与热双金属片过载保护系统，可实现对线路的过载、短路等故障的快速响应。
壳体采用高强度工程塑料一体成型工艺，具备优异的绝缘性能和机械强度。内部灭弧室采用多片式金属栅片设计，能有效缩短电弧停滞时间，提升分断可靠性。产品额定电流涵盖400A规格，具备3300A分断能力，能满足常规工业配电场景需求。操作机构采用三位置指示设计（接通/分断/脱扣），直观显示设备运行状态。
该产品支持水平或垂直安装方式，母排连接端采用镀银处理工艺，有效降低接触电阻。模块化附件设计支持加装辅助触点、分励脱扣器等扩展功能。适用于建筑配电、机械设备、新能源系统等场景的线路主干保护，可为电力系统的稳定运行提供基础保障。
在产品设计中注重使用安全性，采用全封闭式结构配合隔离挡板设计，有效防止异物侵入。手柄操作区域符合人体工学原理，配备防误触安全锁孔。通过优化内部元器件布局，使产品在保持紧凑体积的同时，确保各功能单元散热均衡。
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.
（中英文合计约650字）
