CDM6LI-250M/4300A 250A塑壳漏电保护断路器产品介绍
中文版：
CDM6LI-250M/4300A 250A塑壳漏电保护断路器是一款适用于低压配电系统的高性能电气保护装置。该产品采用模块化结构设计，集成漏电保护、过载保护和短路保护功能于一体，可有效提升用电系统的安全防护等级。壳体采用高强度工程塑料制造，具备优异的绝缘性能和机械强度，适用于工业、商业及民用建筑等多种电气环境。
产品核心参数显示，其额定工作电流为250A，极限分断能力达到4300A，能够可靠切断故障电流。独特的1/3/5三段式延时保护机制，可根据实际需求灵活调整动作时间，既保证保护灵敏性又避免误动作的发生。双断点触头结构配合高效灭弧系统，显著提升电气寿命，经实验室验证可完成上万次正常分合操作。
在功能性设计方面，配备可视化分合闸指示窗口和机械自由脱扣机构，便于运行状态监控和紧急手动操作。漏电保护模块采用智能检测技术，可实时监测线路泄漏电流，当检测值达到设定阈值时，设备可在0.1秒内自动切断电路。安装方式兼容导轨固定和螺栓紧固两种模式，适应不同规格配电柜的安装需求。
产品经过严格的质量管控流程，主要部件采用铜合金镀银工艺，确保长期使用的导电稳定性。紧凑型结构设计在有限空间内实现了功能集成，相比同类产品体积缩减约15%。防护等级达到IP40，可有效防止粉尘侵入。适用于交流50Hz、额定工作电压至400V的三相四线配电系统，为电动机、配电干线及重要用电设备提供可靠保护。
English Version:
The CDM6LI-250M/4300A 250A Molded Case Leakage Protection Circuit Breaker is a high-performance electrical protection device designed for low-voltage distribution systems. Integrating earth leakage protection, overload protection and short-circuit protection functions through modular design, this product significantly enhances the safety level of electrical systems. The housing, constructed with high-strength engineering plastics, demonstrates excellent insulation performance and mechanical durability, suitable for various industrial, commercial and residential electrical environments.
With a rated operational current of 250A and ultimate breaking capacity of 4300A, the device reliably interrupts fault currents. Its innovative 1/3/5 three-stage time-delay protection mechanism allows flexible adjustment of tripping time to ensure protection sensitivity while preventing nuisance tripping. The double-break contact structure combined with an efficient arc extinguishing system extends electrical endurance, verified by laboratory tests to withstand over 10,000 normal switching cycles.
Functional enhancements include a visible switching status indicator window and mechanical free-trip mechanism, facilitating operational monitoring and emergency manual intervention. The leakage protection module employs intelligent detection technology to continuously monitor circuit leakage current, initiating automatic circuit interruption within 0.1 seconds upon reaching preset thresholds. Dual mounting options (DIN-rail or bolt fixation) ensure compatibility with various distribution cabinet specifications.
Manufactured under strict quality control processes, key components utilize silver-plated copper alloy contacts to maintain stable conductivity during extended service. The compact design achieves 15% volume reduction compared to similar products while maintaining full functionality. With IP40 protection rating effectively preventing dust ingress, this device is suitable for three-phase four-wire systems up to 400V AC 50Hz, providing reliable protection for motor circuits, power distribution lines and critical electrical equipment.
