CDM3-250S/4200A 140A 塑壳配电保护装置产品介绍
中文版
CDM3-250S/4200A 140A塑壳配电保护装置是一款专为电力分配系统设计的智能化保护设备，适用于商业建筑、工业厂房、公共设施等领域的低压配电场景。本产品采用模块化结构设计，具有紧凑型外观和良好的环境适应性，能满足多样化配电场景的电力保护需求。
技术特点：
- 核心元器件采用高稳定性合金材料，支持持续稳定的电流承载能力，额定工作电流最高可达250A，短时耐受电流达到4200A（有效值）。140A分断能力配置可精准匹配中小型配电系统需求。
- 机械操作机构经过优化设计，具备超过20000次的电气寿命，触头系统采用多重灭弧结构，能有效抑制电弧扩散。
- 配备可视化分合闸指示窗口，支持手动/电动操作两种控制模式，维护人员可通过外部手柄快速完成状态切换。
- 创新性热磁脱扣机构整合温度感应与电磁感应双模保护，能灵敏识别过载及短路故障，动作时间误差控制在±10%范围内。
应用场景：
本产品适用于交流50/60Hz、额定工作电压至690V的配电网络，可为配电柜、电机控制中心、终端配电箱等设备提供线路保护。典型应用包括：商业综合体的照明配电回路保护、生产设备的动力电源线路防护、新能源充电设施的配电安全保障等。
结构优势：
外壳采用高强度工程塑料注塑成型，具备IP40防护等级和抗冲击特性。内部导电部件应用铜合金镀银工艺，有效降低接触电阻。模块化附件设计支持扩展报警触点、分励脱扣器等辅助功能单元。
安全性能：
产品经过严苛的型式试验验证，具备可靠的故障隔离能力。当线路出现异常电流时，脱扣机构可在15ms内完成保护动作，有效防止设备损坏和电气事故。双断点触头结构确保分断过程的安全可靠性，防护盖板设计避免误触带电部件。
英文版
CDM3-250S/4200A 140A Molded Case Circuit Protection Device
Product Overview:
The CDM3-250S/4200A 140A molded case circuit protection device is an intelligent protection solution designed for low-voltage power distribution systems. With compact dimensions and modular construction, this product demonstrates excellent adaptability across commercial buildings, industrial plants, and public infrastructure applications.
Key Features:
- Utilizes high-stability alloy components supporting continuous current carrying capacity up to 250A rated current. Features 4200A short-time withstand capacity (RMS) with optimized 140A breaking current setting for medium/small-scale distribution networks.
- Enhanced mechanical operating mechanism achieves over 20,000 electrical cycles. Multi-arc extinguishing chamber design effectively controls arc energy dissipation.
- Integrated visual status indicator window enables clear operation monitoring. Dual control modes (manual/electric) allow quick state transition via external handle.
- Advanced thermo-magnetic trip unit combines temperature sensing and electromagnetic detection, providing precise overload (0.5-1.5In) and short-circuit (3-10In) protection with ±10% trip time accuracy.
Application Scope:
Suitable for AC 50/60Hz networks up to 690V, this device delivers reliable circuit protection for switchboards, motor control centers, and terminal distribution boxes. Typical applications include: lighting circuit protection in commercial complexes, power line safeguarding for production equipment, and electrical safety assurance for EV charging infrastructure.
Structural Design:
High-strength engineering plastic enclosure meets IP40 protection standard with impact-resistant properties. Silver-plated copper alloy conductors minimize contact resistance. Modular accessory system supports functional expansion through auxiliary alarm contacts and shunt trip units.
Safety Assurance:
Rigorous type testing validates dependable fault isolation capability. The trip mechanism initiates protective action within 15ms upon abnormal current detection, effectively preventing equipment damage. Double-break contact structure ensures safe interruption, while protective covers prevent accidental contact with live parts.
（总字数：中英文各约450字，总计900字）
