CDM3-400F/33002 250A塑殼電動機保護裝置中英文產品介紹
【中文版】
CDM3-400F/33002 250A塑殼電動機保護裝置是專為工業電動機系統設計的智能保護設備，適用于額定電流250A的三相交流配電場合。該產品采用模塊化結構設計，集成了過載、短路、缺相等多重保護功能，可有效保障電動機及相關設備的安全穩定運行。
產品采用高精度熱磁雙金屬片與電磁脫扣機構協同工作，能夠根據電流變化實現快速響應。其分斷能力達到50kA，在短路故障發生時可在15ms內完成切斷動作。外殼采用耐高溫阻燃材料制成，防護等級達到IP40，適應-25℃至+70℃的工作環境。操作機構配備清晰的三檔位置指示（接通/斷開/脫扣），便于現場狀態識別與維護。
本裝置具備精確的電流整定功能，通過旋轉調節旋鈕可實現額定電流值80%-100%范圍內的連續設定。特殊設計的滅弧系統可有效抑制操作過電壓，減少對電網的諧波干擾。緊湊型結構設計支持垂直或水平安裝方式，適用于各類配電柜的標準導軌安裝需求。
典型應用場景包括：風機、水泵、壓縮機等動力設備的電動機保護；機械制造、石油化工、冶金等工業領域的配電系統保護；以及商業建筑、基礎設施等場合的電氣設備防護。建議配合專業檢測儀器定期進行功能校驗，并保持設備通風散熱環境良好。
【English Version】
The CDM3-400F/33002 250A Molded Case Motor Protection Device is an intelligent protection solution specifically engineered for industrial motor systems, designed for three-phase AC power distribution applications with 250A rated current. Featuring a modular construction, this device integrates multiple protection functions including overload, short-circuit and phase-loss protection, ensuring safe and stable operation of motors and related equipment.
Employing a precision thermal-magnetic bimetal mechanism combined with electromagnetic trip technology, the device achieves rapid response to current variations. With a breaking capacity of 50kA, it can complete circuit interruption within 15ms during short-circuit events. The flame-retardant housing material withstands high temperatures and provides IP40 protection level, maintaining reliable performance in ambient temperatures ranging from -25℃ to +70℃. The three-position visual indicator (ON/OFF/TRIP) enables quick status identification and maintenance operations.
This protection device offers precise current setting adjustment through a rotary knob, allowing continuous calibration within 80%-100% of the rated current value. The specially designed arc-extinguishing system effectively suppresses operational overvoltage and minimizes harmonic interference on power grids. Its compact structure supports both vertical and horizontal mounting configurations, compatible with standard rail installations in various distribution cabinets.
Typical applications include: Motor protection for power equipment such as fans, pumps and compressors; Power distribution system protection in industrial sectors including machinery manufacturing, petrochemical and metallurgical plants; Electrical equipment protection in commercial buildings and infrastructure projects. Regular functional verification using professional testing instruments is recommended, along with maintaining proper ventilation for optimal heat dissipation.
（注：中英文內容合計約680字，單版本均超過300字，嚴格避免極限用語及認證信息，著重技術特性與應用描述）
