CDM3L-400N/4300B 350A 1/3/5延1 塑壳漏电保护断路器产品介绍
【中文版】
CDM3L-400N/4300B 350A 1/3/5延1塑壳漏电保护断路器是专为现代配电系统设计的智能保护装置，采用模块化结构设计和精密电子控制技术，可为低压配电网络提供可靠的漏电检测与电路保护功能。产品额定工作电流350A，适用于交流50Hz、额定工作电压至400V的配电环境。
本产品采用强化绝缘壳体与防尘阻燃材料一体化成型工艺，具备IP40防护等级，能够适应多种工业环境要求。核心部件搭载高灵敏度漏电检测模块，可实时监测线路漏电电流变化，当检测到30mA-30A范围内的接地故障电流时，可在0.1秒内实现精准分断。三段式保护特性（1/3/5延1）支持短延时、瞬时和接地故障多级协调保护，可通过旋钮调节实现0.1-1秒的延时动作区间，有效提升系统供电连续性。
创新型触头系统采用银合金材料与电磁吹弧技术配合，确保在350A额定电流下保持稳定的导电性能。产品配备可视化分合闸指示窗和机械储能手柄，支持手动/自动双重操作模式。双断点分断结构结合灭弧室优化设计，使分断能力达到行业主流水平。可扩展辅助触点、欠压脱扣器等模块化附件，满足配电柜智能化升级需求。
该装置适用于商业建筑、工业厂房、基础设施等领域的低压配电系统，可有效防范因线路绝缘劣化、设备漏电引发的电气事故，为电力系统提供持续稳定的安全保护。
【English Version】
The CDM3L-400N/4300B 350A 1/3/5 Delayed Moulded Case Leakage Circuit Breaker is an intelligent protection device developed for modern power distribution systems. Featuring modular structural design and precision electronic control technology, it delivers reliable earth leakage detection and circuit protection for low-voltage distribution networks. With a rated operational current of 350A, this product is suitable for AC 50Hz power systems with rated operational voltage up to 400V.
Constructed with reinforced insulation housing and integrated flame-retardant materials, the breaker achieves IP40 protection grade to meet diverse industrial environment requirements. Its core component integrates a high-sensitivity leakage detection module capable of monitoring real-time current variations. When detecting ground fault currents ranging from 30mA to 30A, the device achieves precise tripping within 0.1 seconds. The three-stage protection characteristics (1/3/5 Delayed) provide coordinated short-time delay, instantaneous and earth fault protection, with adjustable delay intervals from 0.1 to 1 second via rotary knob, effectively enhancing power supply continuity.
The innovative contact system combines silver alloy materials with electromagnetic arc-extinguishing technology, maintaining stable conductivity under 350A rated current. Equipped with visible switching status indicator and mechanical energy-storage handle, the breaker supports both manual and automatic operation modes. The double-breakpoint structure with optimized arc extinguishing chamber delivers mainstream breaking capacity. Modular accessories including auxiliary contacts and undervoltage releases allow flexible expansion for intelligent panel upgrades.
This device is widely applicable to low-voltage distribution systems in commercial buildings, industrial plants and infrastructure projects. It effectively prevents electrical accidents caused by insulation degradation or equipment leakage, providing continuous safety protection for power systems through its multi-level protection mechanism and adaptive delay configuration.
