CDM3L-630N/4300A 400A 1/3/5延3 塑壳漏电保护断路器产品介绍（中英文）
【中文版】
CDM3L-630N/4300A 400A 1/3/5延3型塑壳漏电保护断路器是一款专为低压配电系统设计的智能化保护装置。其核心功能在于实时监测线路中的漏电、过载及短路故障，并通过快速切断电源确保用电安全。产品采用模块化结构设计，具备紧凑的外形尺寸和较高的分断能力，适用于工业、商业及民用领域的配电保护需求。
该断路器额定电流为400A，可适配三相四线或三相五线制配电网络，支持多级联锁保护机制。内置漏电检测模块能够精准识别线路中的剩余电流，当检测值超出设定范围时，设备将在毫秒级时间内完成脱扣动作，有效降低电气火灾和触电事故风险。针对不同应用场景，产品提供三段式延时保护功能（1/3/5延3），用户可根据实际负载特性灵活调整动作参数，兼顾保护灵敏性与系统稳定性。
在结构设计上，壳体采用高强度工程塑料与阻燃材料复合制成，耐受高温与机械冲击能力显著提升。触头系统应用多重灭弧技术，确保高短路分断能力的同时延长电气寿命。安装方式支持导轨固定或螺栓紧固，适配标准配电柜布局。操作界面配备直观的状态指示窗与复位按键，便于日常维护与故障排查。
该产品广泛适用于工厂生产线、商业综合体、数据中心及住宅配电箱等场景，为变压器、电动机、电缆线路等设备提供可靠保护。通过优化电磁兼容设计，可适应复杂电网环境下的稳定运行需求，降低误动作概率。
【English Version】
The CDM3L-630N/4300A 400A 1/3/5 Delay 3 Molded Case Leakage Protection Circuit Breaker is an intelligent protection device designed for low-voltage power distribution systems. Its core function lies in real-time monitoring of leakage, overload, and short-circuit faults in circuits, with rapid power interruption to ensure electrical safety. Featuring a modular structural design, the product combines compact dimensions with high breaking capacity, making it suitable for industrial, commercial, and residential power distribution protection requirements.
With a rated current of 400A, this circuit breaker is compatible with three-phase four-wire or three-phase five-wire distribution networks and supports multi-level interlock protection mechanisms. The built-in leakage detection module accurately identifies residual currents in circuits. When detected values exceed preset thresholds, the device initiates tripping within milliseconds, effectively reducing risks of electrical fires and electric shocks. For diverse application scenarios, the product offers three-stage delay protection (1/3/5 Delay 3), allowing users to flexibly adjust activation parameters based on actual load characteristics, balancing protection sensitivity and system stability.
Structurally, the enclosure utilizes high-strength engineering plastics combined with flame-retardant materials, significantly enhancing resistance to high temperatures and mechanical impacts. The contact system employs multi-channel arc-extinguishing technology to ensure high short-circuit breaking capacity while extending electrical service life. Installation options include rail mounting or bolt fixation, compatible with standard distribution cabinet layouts. The user interface features an intuitive status indicator window and a reset button for simplified maintenance and troubleshooting.
This product is widely applicable to factory production lines, commercial complexes, data centers, and residential distribution boxes, providing reliable protection for transformers, motors, cable lines, and other equipment. Through optimized electromagnetic compatibility design, it ensures stable operation in complex grid environments while minimizing false triggering risks. The streamlined mechanical structure and standardized terminal design further enhance installation efficiency and long-term operational reliability.
