CDM3-400N/42002B 225A塑壳断路器产品介绍（中文版）
CDM3-400N/42002B 225A塑壳断路器是一款专为低压配电系统设计的高性能保护装置，采用模块化结构和紧凑型设计理念，可广泛应用于工业控制、建筑配电、能源系统等场景。该产品额定工作电流225A，具备可靠的电力分配与线路保护功能，在确保供电连续性的同时有效提升用电安全性。
产品核心特点：
- 智能分断技术：通过优化的磁场脱扣结构，实现短路电流的快速响应与精准分断，缩短故障处理时间，降低设备受异常电流冲击的风险。
- 模块化扩展设计：支持多种附件灵活配置，可扩展欠电压脱扣、分励脱扣等辅助功能模块，满足不同应用场景的定制化需求。
- 热稳定性强化：采用耐高温合金触点与多层灭弧栅结构，在持续高负荷工况下仍能保持稳定的导电性能和分断能力。触头部分通过特殊镀层工艺处理，有效降低接触电阻并延长使用寿命。
- 可视化操作界面：配备清晰的三色机械指示窗口，可直观显示断路器"分闸"、"合闸"、"脱扣"三种状态。操作手柄符合人体工学设计，确保分合闸动作的可靠性与操作便捷性。
- 环境适应性优化：外壳采用高阻燃增强尼龙材料，耐受温度范围达-25℃至+70℃，内部组件经防潮防尘处理，适应各类工业环境的长期稳定运行。
产品采用上下进线双兼容结构，支持35mm标准导轨安装，便捷的插拔式接线端子可减少现场安装时间。适用于交流50/60Hz，额定工作电压至690V的配电网络，可为电动机、变压器等重要负载提供过载和短路双重保护。优化的散热风道设计配合对流散热孔，确保设备在满负荷运行时的温升控制在合理范围。
CDM3-400N/42002B 225A Molded Case Circuit Breaker Product Introduction (English Version)
The CDM3-400N/42002B 225A molded case circuit breaker is a high-performance protection device designed for low-voltage distribution systems. Featuring modular construction and compact design, it is widely applicable in industrial control systems, building power distribution, and energy infrastructure. With a rated operational current of 225A, this device delivers reliable power distribution and circuit protection while ensuring power supply continuity and enhanced electrical safety.
Key Features:
- Intelligent Tripping Mechanism: The optimized magnetic trip structure enables rapid response to short-circuit currents and precise interruption, minimizing fault clearance time and reducing equipment exposure to abnormal current impacts.
- Modular Expansion Capability: Supports flexible configuration of auxiliary accessories including undervoltage release and shunt trip modules, accommodating customized requirements across various applications.
- Thermal Stability Enhancement: Equipped with high-temperature-resistant alloy contacts and multi-layer arc chutes, maintaining stable conductive performance and breaking capacity under continuous heavy-load conditions. Special coating technology on contacts reduces resistance and extends service life.
- Visual Status Indication: Features a three-color mechanical indicator window for clear identification of "OFF", "ON", and "TRIPPED" statuses. The ergonomic operating handle ensures reliable switching operations and user-friendly control.
- Environmental Adaptability: The flame-retardant reinforced nylon enclosure withstands temperatures from -25℃ to +70℃. Internal components with moisture-proof and dust-proof treatment ensure long-term stability in demanding industrial environments.
The dual-directional terminal design supports both top and bottom cable entry, compatible with 35mm standard mounting rails. Plug-in terminal blocks significantly reduce installation time. Suitable for 50/60Hz AC networks with rated operational voltage up to 690V, it provides dual protection against overload and short-circuit for critical loads including motors and transformers. The optimized thermal ventilation channels with convection cooling slots effectively control temperature rise during full-load operation.
（中英文合计约620字）
