CDM1-400M/4200 350A 塑殼斷路器產品介紹（中英雙語）
【中文版】
CDM1-400M/4200 350A塑殼斷路器是一款專為低壓配電系統設計的高性能保護裝置，適用于額定工作電壓至690V、額定電流350A的電路環境。產品采用模塊化結構設計，集線路保護與控制功能于一體，可為工業配電、建筑電氣及基礎設施等領域提供可靠的電路安全保障。
本產品主體外殼采用高強度工程材料注塑成型，具備優良的絕緣性能和機械強度。觸頭系統通過特殊合金材料與精密加工工藝處理，確保在350A額定電流下的穩定通斷能力。滅弧室采用多級柵片式設計，有效提升分斷過程中電弧能量的吸收效率，降低故障電流對設備的影響。三段式保護功能可實現對線路過載、短路等異常情況的快速響應，配合直觀的機械狀態指示窗，便于運維人員實時掌握設備工作狀態。
產品在設計上充分考慮安裝便捷性，支持多種標準導軌與固定式安裝方式。操作機構采用儲能式彈簧驅動技術，兼具手動分合閘與遠程電動控制兼容性。插拔式接線端子設計簡化了線纜連接流程，同時預留外部附件擴展接口，可根據實際需求加裝報警觸點、分勵脫扣等輔助模塊。殼體表面經過防腐蝕涂層處理，適應-25℃至+70℃的環境溫度范圍，在潮濕、塵埃等復雜工況下仍能保持穩定性能。
作為配電系統的重要保護組件，該產品適用于電動機保護、配電柜主開關、電力分配系統等場景，幫助用戶實現電路系統的安全運行管理。通過優化結構設計與材料選型，產品在確保安全性的同時兼顧經濟性，是工業與民用領域廣泛應用的可靠選擇。
【English Version】
The CDM1-400M/4200 350A Molded Case Circuit Breaker is a high-performance protection device specifically designed for low-voltage distribution systems, suitable for circuits with rated operational voltage up to 690V and rated current of 350A. Featuring modular structural design, it integrates circuit protection and control functions, delivering reliable electrical safety for industrial power distribution, building electrical systems, and infrastructure applications.
The main housing utilizes high-strength engineering plastics with excellent insulation properties and mechanical durability. The contact system employs specially alloyed materials and precision machining processes, ensuring stable switching capability under 350A rated current. The multi-stage arc chute design enhances arc energy absorption during interruption, effectively reducing the impact of fault currents. Three-stage protection mechanism enables rapid response to overload and short-circuit conditions, complemented by an intuitive mechanical status indicator for real-time monitoring.
Designed for installation flexibility, the product supports multiple standard mounting options including rail and fixed-base installations. The energy-storing spring operating mechanism allows both manual switching and remote electrical control compatibility. Plug-in terminal design simplifies wiring processes, while expandable accessory interfaces permit optional additions like alarm contacts or shunt trip modules. Anti-corrosion surface treatment enables reliable performance in challenging environments with temperature ranges from -25℃ to +70℃, maintaining stability under humid or dusty conditions.
As a critical protection component, this circuit breaker is ideal for motor protection, distribution cabinet main switches, and power distribution systems. Through optimized structural design and material selection, it achieves an effective balance between operational safety and cost efficiency, serving as a dependable solution for various industrial and commercial applications. The product s robust construction and maintenance-friendly features contribute to extended service life while reducing system downtime risks.
（中英文合計約620字）
