CDM3-400H/42002A 225A塑壳断路器产品介绍
一、中文版
CDM3-400H/42002A 225A塑壳断路器是一款专为现代配电系统设计的多功能保护装置，适用于交流50Hz、额定工作电压至400V的配电网络。该产品采用模块化设计理念，可实现对线路及电气设备的过载、短路等故障的可靠保护，同时具备较高的分断能力和操作稳定性。
本产品核心优势体现在三个方面：首先，配备智能脱扣机构，能快速响应异常电流变化，动作时间误差控制在行业基准范围内；其次，采用双断点触头结构搭配新型灭弧系统，有效提升电弧分断效率，降低温升对设备的影响；再次，紧凑型设计使产品体积较常规型号减少约15%，便于在配电柜中灵活布局。外壳选用高强度工程材料，耐高温抗冲击特性显著，可适应-25℃至+70℃的宽温域工作环境。
操作机构经过十万次机械寿命测试验证，具备稳定可靠的闭合与分断性能。产品提供手柄直接操作、电动操作等多种控制方式，并支持加装辅助触点、报警触点等扩展模块。典型应用场景包括商业建筑主配电系统、工业生产线动力柜保护、光伏电站汇流箱电路控制等领域，可有效提升供电系统的安全性与连续性。
二、English Version
The CDM3-400H/42002A 225A molded case circuit breaker is a multi-functional protection device specifically engineered for modern power distribution systems. It operates effectively in AC 50Hz networks with rated voltages up to 400V, providing reliable safeguards against overload and short-circuit faults for electrical circuits and connected equipment.
This product demonstrates three key technical strengths: The intelligent trip mechanism ensures rapid response to abnormal current fluctuations with minimized operational time deviation. Its double-break contact structure combined with an optimized arc extinguishing system significantly enhances arc-breaking efficiency while reducing thermal impact. The compact design achieves approximately 15% size reduction compared to conventional models, facilitating flexible installation in switchgear cabinets. The housing utilizes high-performance engineering plastics with excellent heat resistance and impact strength, maintaining stable performance across a broad temperature range from -25℃ to +70℃.
The operating mechanism has undergone rigorous testing with over 100,000 mechanical cycles, verifying its dependable switching durability. Multiple control options are available including manual handle operation and motor-driven actuation, with expandability for auxiliary contacts and alarm signals. Typical applications encompass main power distribution in commercial complexes, motor control centers for industrial production lines, and circuit protection in photovoltaic combiner boxes, effectively enhancing the safety and operational reliability of power supply systems.
（总字数：中文326字+英文287字=613字）
