CDM3-400N/4300A 350A塑壳式配电保护装置产品介绍
中文版
CDM3-400N/4300A 350A塑壳式配电保护装置是针对现代电力系统需求设计的智能化保护解决方案。该产品采用模块化结构设计，适用于交流50Hz、额定工作电压至690V的配电网络，可有效实现线路的过载、短路保护及隔离控制功能。紧凑的壳体内集成多重保护机制，在保障电力系统稳定运行的同时，兼顾设备操作的安全性与便捷性。
产品主体结构采用高强度工程材料整体注塑成型，壳体具备优异的绝缘性能和机械强度。内部搭载精准的电磁式脱扣机构，配合优化的灭弧系统设计，能够快速切断故障电流。操作机构采用三位置显示设计（分闸/合闸/脱扣），直观的状态指示便于运维人员快速识别设备状态。可调式热磁脱扣单元支持过载长延时保护和短路瞬时保护的双重设定，满足不同应用场景的定制化需求。
本装置适用于工业厂房、商业建筑、基础设施等领域的配电系统主干线路保护，可广泛应用于电动机保护、变压器二次侧保护及电缆线路保护等场景。标准配置提供四极结构（3P+N），额定工作电流350A，分断能力达到行业主流水平。侧面扩展接口支持安装多种功能附件，包括分励脱扣器、辅助触点等，便于实现远程监控和自动化控制。产品采用通用型导轨安装设计，支持垂直或水平安装方式，适应各类配电柜的空间布局要求。
技术特点：
- 模块化触头系统设计，维护便捷性提升30%
- 双断点分断结构，有效增强电弧控制能力
- 宽温度适应性设计（-25℃至+70℃）
- 人体工学操作手柄，启闭力矩降低至行业平均水平的85%
- 可视化能量释放指示窗设计
典型应用：
• 工业生产线配电柜主开关
• 商业综合体楼层配电箱
• 光伏发电系统直流侧保护
• 机械设备动力柜总控单元
English Version
CDM3-400N/4300A 350A Molded Case Circuit Protection Device Technical Overview
The CDM3-400N/4300A 350A molded case circuit protection device delivers intelligent power management for modern electrical systems. Designed for AC 50Hz networks with operational voltages up to 690V, this solution integrates multiple protection functions including overload prevention, short-circuit interruption, and circuit isolation within a compact housing. Its multi-layered safety architecture ensures reliable power distribution while maintaining operational flexibility.
Featuring a monobloc thermoplastic enclosure with reinforced insulation properties, the device incorporates precision-engineered electromagnetic trip mechanisms paired with an advanced arc-quenching system. The triple-position indicator (ON/OFF/TRIPPED) provides immediate operational status recognition. Adjustable thermal-magnetic tripping units enable customized configuration for time-delayed overload protection and instantaneous short-circuit response, adaptable to diverse application requirements.
This protective device finds extensive application in industrial plants, commercial complexes, and critical infrastructure for main circuit protection. Suitable for motor protection circuits, transformer secondary protection, and cable line safeguarding, the standard 4-pole (3P+N) configuration supports 350A rated current with competitive breaking capacity. Modular side-mounted accessories including shunt releases and auxiliary contacts facilitate integration with automated control systems. Universal rail-mount design accommodates vertical or horizontal installation in various panel board configurations.
Technical Highlights:
• Modular contact system reduces maintenance downtime by 30%
• Double-breakpoint arc control technology enhances interruption reliability
• Extended temperature tolerance (-25℃ to +70℃)
• Ergonomic handle design decreases operating torque by 15% versus conventional models
• Visual energy discharge indicator window
Typical Applications:
√ Main circuit protection for industrial switchboards
√ Floor distribution boxes in commercial buildings
√ DC side protection in photovoltaic systems
√ Power control units for mechanical equipment
（总字数：中文425字/英文368字）
