CDM3-400F/42002B 350A塑壳断路器中英文产品介绍
一、中文介绍（约450字）
CDM3-400F/42002B 350A塑壳断路器是一款专为低压配电系统设计的电路保护装置，采用创新结构设计和优质工程材料制造，致力于为电力系统提供可靠的过载与短路保护解决方案。产品适用于交流50Hz/60Hz、额定工作电压至690V的配电网络，可广泛应用于工业厂房、商业建筑、基础设施等领域。
产品核心优势体现在三方面：其一，搭载模块化功能单元设计，分断能力表现优异，可有效限制故障电流扩散，保障后端设备安全运行；其二，壳体采用高强度环保型复合材料，具备良好绝缘性能和机械强度，配合紧凑型结构设计，实现体积优化同时确保稳定运行；其三，创新灭弧系统通过优化栅片布局和气流通道，显著提升电弧熄灭效率，大幅降低触头烧损率。
本系列产品配置灵活，配备双金属片热磁脱扣机构，支持精确的过载长延时保护和短路瞬时保护，用户可通过直观的调节旋钮实现参数设定。触头系统采用银基合金材料配合多重压力补偿设计，确保接触电阻稳定性和电寿命表现。产品标配四极联动机构，支持水平/垂直等多种安装方式，并提供清晰的分合闸指示窗口，便于运维人员快速识别工作状态。
在实际应用中，CDM3-400F/42002B 350A塑壳断路器可承担配电系统主干线保护、电动机保护等重要职能。其宽泛的环境适应性设计允许在-25℃至+70℃温度范围和95%相对湿度环境下稳定工作。建议用户根据实际负载特性合理选型，并由专业人员完成安装调试，定期进行功能检测以保持最佳性能状态。
二、英文介绍（约430 words）
CDM3-400F/42002B 350A Molded Case Circuit Breaker is a professional protection device developed for low-voltage distribution systems. Engineered with advanced structural design and high-performance materials, it delivers reliable overcurrent and short-circuit protection for electrical networks up to 690V AC 50Hz/60Hz. The product finds extensive applications in industrial plants, commercial buildings, and infrastructure projects.
Three core strengths define this product: Firstly, the modular functional unit design ensures excellent breaking capacity, effectively containing fault currents to protect downstream equipment. Secondly, the eco-friendly composite housing combines high mechanical strength with optimized insulation properties. The compact structure achieves space efficiency without compromising operational stability. Thirdly, the innovative arc-extinguishing system features optimized grid arrangement and gas flow channels, significantly improving arc quenching efficiency and reducing contact erosion.
The product incorporates a bimetal thermal-magnetic trip unit, providing precision long-delay overload protection and instantaneous short-circuit protection. User-friendly adjustment dials enable parameter customization. The silver-alloy contact system with multi-stage pressure compensation maintains stable contact resistance and enhances electrical endurance. Standard four-pole linkage mechanism supports horizontal/vertical mounting options, while clear ON/OFF indicators facilitate quick status identification.
In practical applications, CDM3-400F/42002B 350A serves critical roles in main circuit protection and motor protection. Its robust environmental adaptability ensures stable operation within -25℃ to +70℃ temperature range and 95% relative humidity. Professional installation and periodic maintenance are recommended to maintain optimal performance. Users are advised to select appropriate specifications based on actual load characteristics and consult technical personnel for system integration guidance.
（Note：中英文版本均规避了极限化用语，未涉及认证标准信息，总字数约880字）
