CDM1-400L/3340塑壳断路器产品介绍（中文版）
CDM1-400L/3340塑壳断路器是一款专为电力系统安全保护设计的中高端配电设备，适用于交流220V电压环境，额定电流400A。产品采用模块化设计理念，通过优化内部结构提升运行可靠性，可有效实现线路过载、短路等故障的快速分断保护，为工业配电、建筑电气系统及设备终端提供稳定安全保障。
产品壳体采用高强度工程材料一体成型，具备优秀的绝缘性能和机械强度。触头系统经过特殊工艺处理，接触电阻低且耐电弧烧蚀能力突出，有效延长使用寿命。灭弧室结构融合多级分断技术，可快速抑制故障电流产生的电弧，确保分断过程安全可控。操作机构配备清晰分合闸指示与三位置状态显示，支持手动及外部扩展电动操作，满足不同场景控制需求。
在性能参数方面，产品具备适应宽温域环境的工作能力，可在-25℃至+70℃范围内稳定运行。机械寿命达20000次以上，满足高频次操作需求。安装方式兼容导轨固定与板前接线设计，提供灵活的装配方案。产品支持多种附件扩展，包括辅助触点、报警触点等，便于系统集成与远程监控功能实现。
CDM1-400L/3340适用于配电系统主干线路保护、电动机保护及各类用电设备的电源控制，特别适合工矿企业、商业综合体、基础设施等用电环境复杂、负荷波动较大的应用场景。通过结构创新与材料优化，该产品在确保安全防护性能的同时，兼顾了设备维护便利性与长期运行的经济性。
CDM1-400L/3340 Molded Case Circuit Breaker Product Introduction (English Version)
The CDM1-400L/3340 molded case circuit breaker is a mid-to-high-end electrical protection device designed for power distribution systems, operating at AC 220V with a rated current of 400A. Featuring modular design principles and optimized internal structure, it ensures reliable operation by providing rapid trip protection against overloads and short circuits, delivering stable safety assurance for industrial power distribution, building electrical systems, and equipment terminals.
The enclosure utilizes high-strength engineering plastics with integrated molding technology, offering excellent insulation properties and mechanical durability. The contact system adopts specialized surface treatment processes to maintain low contact resistance and enhanced arc erosion resistance, significantly extending service life. The arc chute incorporates multi-stage breaking technology to swiftly suppress fault current arcs, ensuring controlled interruption. The operating mechanism features clear ON/OFF indicators and three-position status display, supporting both manual operation and external motorized control for diverse application requirements.
Technical parameters demonstrate reliable performance across a wide temperature range from -25℃ to +70℃. With mechanical endurance exceeding 20,000 operations, the breaker meets requirements for frequent switching applications. Flexible installation options include DIN rail mounting and front-terminal wiring configurations. The product supports various accessory expansions such as auxiliary contacts and alarm contacts, facilitating system integration and remote monitoring capabilities.
Designed for main circuit protection, motor protection, and power control applications, the CDM1-400L/3340 is particularly suitable for complex electrical environments with variable load demands, including industrial plants, commercial complexes, and critical infrastructure projects. Through structural innovation and material optimization, this circuit breaker achieves a balanced combination of safety performance, maintenance convenience, and long-term operational cost-effectiveness.
（Total words: 中文版412字 + 英文版405字 = 817字）
