CDM3L-400N/4300B 350A 1/3/5延1 塑殼漏電保護斷路器產品介紹
【中文版】
CDM3L-400N/4300B 350A 1/3/5延1塑殼漏電保護斷路器是專為現代配電系統設計的智能保護裝置，采用模塊化結構設計和精密電子控制技術，可為低壓配電網絡提供可靠的漏電檢測與電路保護功能。產品額定工作電流350A，適用于交流50Hz、額定工作電壓至400V的配電環境。
本產品采用強化絕緣殼體與防塵阻燃材料一體化成型工藝，具備IP40防護等級，能夠適應多種工業環境要求。核心部件搭載高靈敏度漏電檢測模塊，可實時監測線路漏電電流變化，當檢測到30mA-30A范圍內的接地故障電流時，可在0.1秒內實現精準分斷。三段式保護特性（1/3/5延1）支持短延時、瞬時和接地故障多級協調保護，可通過旋鈕調節實現0.1-1秒的延時動作區間，有效提升系統供電連續性。
創新型觸頭系統采用銀合金材料與電磁吹弧技術配合，確保在350A額定電流下保持穩定的導電性能。產品配備可視化分合閘指示窗和機械儲能手柄，支持手動/自動雙重操作模式。雙斷點分斷結構結合滅弧室優化設計，使分斷能力達到行業主流水平。可擴展輔助觸點、欠壓脫扣器等模塊化附件，滿足配電柜智能化升級需求。
該裝置適用于商業建筑、工業廠房、基礎設施等領域的低壓配電系統，可有效防范因線路絕緣劣化、設備漏電引發的電氣事故，為電力系統提供持續穩定的安全保護。
【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.
