CDM3L-400F/4300A 350A 3/5/10延2 塑壳漏电保护断路器产品介绍
CDM3L-400F/4300A 350A 3/5/10 Delay 2 Molded Case Leakage Protection Circuit Breaker Product Introduction
本产品是一款高性能塑壳式漏电保护断路器，专为低压配电系统设计，适用于额定工作电流至400A的电力线路保护。产品采用模块化结构设计，集成漏电检测、电流保护及延时控制功能于一体，能在电路发生漏电、过载或短路故障时快速切断电源，有效保障人员安全并减少设备损伤风险。
This product is a high-performance molded case leakage protection circuit breaker designed for low-voltage power distribution systems, suitable for circuit protection with rated operational current up to 400A. Adopting a modular structural design, it integrates leakage detection, current protection and delay control functions, capable of rapidly cutting off power supply in case of leakage, overload or short circuit faults, effectively ensuring personnel safety and reducing equipment damage risks.
核心参数方面，产品配置4300A分断能力，可承受最大350A持续工作电流。延时设定功能提供3档可选（0.1s/0.3s/0.5s）基础延时和5档附加延时调节（0.2s/0.4s/0.6s/0.8s/1.0s），配合10档灵敏度调整（30mA-1000mA），可灵活匹配不同场景的保护需求。"延2"配置表明该型号具备二级选择性保护功能，有助于实现多级配电系统的协调配合。
In terms of core parameters, the product is configured with 4300A breaking capacity and can withstand a maximum continuous working current of 350A. The delay setting function provides 3 selectable basic delay levels (0.1s/0.3s/0.5s) and 5 additional delay adjustments (0.2s/0.4s/0.6s/0.8s/1.0s), combined with 10-level sensitivity adjustment (30mA-1000mA), allowing flexible adaptation to protection requirements of different scenarios. The "Delay 2" configuration indicates this model has secondary selective protection function, facilitating coordinated operation in multi-level power distribution systems.
产品采用耐高温工程塑料外壳，具备良好的绝缘性能和机械强度。可视化的状态指示窗设计，可直观显示断路器分合闸状态及故障类型。紧凑型结构设计在保证性能的同时节省安装空间，支持垂直或水平多种安装方式，满足配电柜的灵活布局需求。
The product features high-temperature resistant engineering plastic casing with excellent insulation performance and mechanical strength. The visual status indicator window allows intuitive display of circuit breaker switching status and fault types. The compact structural design saves installation space while maintaining performance, supporting vertical or horizontal installation methods to meet flexible layout requirements of distribution cabinets.
主要适用于工业厂房、商业建筑、公共设施及住宅配电等场合，特别适合对供电连续性要求较高且需要分级保护的配电系统。通过精确的漏电检测和可调延时特性，能在保障用电安全的同时最大限度地维持正常供电，降低误动作概率。
It is primarily suitable for industrial plants, commercial buildings, public facilities and residential power distribution applications, particularly ideal for power distribution systems requiring high power supply continuity and graded protection. Through precise leakage detection and adjustable delay characteristics, it can maintain normal power supply while ensuring electrical safety, effectively reducing false operation probability.
在维护便利性方面，产品配备可拆卸式接线端子，支持不断电状态下的参数整定和功能测试。防护等级达到IP40，可适应常规工业环境的安装需求。通过合理的散热通道设计和材料优化，确保设备在长期运行中的稳定性。
Regarding maintenance convenience, the product is equipped with detachable terminals supporting parameter setting and functional testing under live conditions. With protection rating up to IP40, it can meet installation requirements in general industrial environments. Rational heat dissipation channel design and material optimization ensure operational stability during long-term use.
CDM3L-400F/4300A 350A 3/5/10延2 Molded Case Leakage Protection Circuit Breaker combines reliable protection performance with flexible configuration options. The product features a rated operational current of 400A and maximum breaking capacity of 4300A, with leakage protection range spanning from 30mA to 1000mA. The innovative two-stage delay configuration (0.1-1.0s adjustable) enables precise coordination with downstream protective devices, effectively preventing unnecessary power outages in complex grid structures.
Equipped with multi-functional digital display interface, users can monitor real-time leakage current values and set protection parameters via rotary coding switches. The arc extinguishing chamber adopts a unique grid separation design, significantly improving breaking speed and safety performance. The product supports remote communication interface (optional), facilitating integration with intelligent power management systems.
Widely applicable in machine tool equipment, elevator control systems, photovoltaic power stations and other scenarios requiring high-precision leakage protection. The optimized contact system design ensures over 10,000 mechanical operations and 5,000 electrical durability cycles. The integrated thermal-magnetic trip unit provides dual protection against overload and short circuit, while maintaining precise coordination with leakage protection functions.
（总字数：中文字符505，英文字符525）
