CDM3-400F/33002 250A塑壳电动机保护装置中英文产品介绍
【中文版】
CDM3-400F/33002 250A塑壳电动机保护装置是专为工业电动机系统设计的智能保护设备，适用于额定电流250A的三相交流配电场合。该产品采用模块化结构设计，集成了过载、短路、缺相等多重保护功能，可有效保障电动机及相关设备的安全稳定运行。
产品采用高精度热磁双金属片与电磁脱扣机构协同工作，能够根据电流变化实现快速响应。其分断能力达到50kA，在短路故障发生时可在15ms内完成切断动作。外壳采用耐高温阻燃材料制成，防护等级达到IP40，适应-25℃至+70℃的工作环境。操作机构配备清晰的三档位置指示（接通/断开/脱扣），便于现场状态识别与维护。
本装置具备精确的电流整定功能，通过旋转调节旋钮可实现额定电流值80%-100%范围内的连续设定。特殊设计的灭弧系统可有效抑制操作过电压，减少对电网的谐波干扰。紧凑型结构设计支持垂直或水平安装方式，适用于各类配电柜的标准导轨安装需求。
典型应用场景包括：风机、水泵、压缩机等动力设备的电动机保护；机械制造、石油化工、冶金等工业领域的配电系统保护；以及商业建筑、基础设施等场合的电气设备防护。建议配合专业检测仪器定期进行功能校验，并保持设备通风散热环境良好。
【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：中英文内容合计约680字，单版本均超过300字，严格避免极限用语及认证信息，着重技术特性与应用描述）
