CDM6S-630M/4338B 塑壳配电保护装置产品介绍
CDM6S-630M/4338B塑壳配电保护装置是一款适用于低压配电系统的核心电气设备，采用模块化设计理念与优化结构工艺，为630A及以下电流等级的电路提供可靠的过载、短路保护功能。产品外壳选用高强度工程塑料与阻燃材料复合制造，具备优异的绝缘性能和机械强度，可有效保障设备在复杂工况下的稳定运行。
核心功能方面，装置搭载智能脱扣机构与精确校准的热磁保护系统，能够快速识别线路异常状态并执行分断操作。三级联动触头结构配合银合金触点材料，显著降低接触电阻，提升导电效率的同时延长电气寿命。独特的气流通道设计有效加速灭弧介质扩散，在6kA分断能力下仍能保持稳定的电弧抑制效果，确保操作人员安全。产品支持三极/四极规格配置，可灵活适配TN、TT等多种配电网络架构。
本装置适用于工业厂房、商业建筑、基础设施等领域的配电箱、柜安装场景，可为电动机、变压器及主干线路提供分级保护。紧凑的外形结构便于导轨安装，操作手柄具备清晰的合闸/分闸状态指示，配备透明防护盖板防止误触。维护时可通过可视化窗口观察内部状态，支持快速模块更换而不影响整体系统运行。产品经过严格的环境适应性测试，可在-25°C至+70°C温度范围和95%相对湿度条件下保持性能稳定。
技术参数节选：
额定工作电流：630A
额定工作电压：AC 400V
极数配置：3P/4P
机械寿命：≥20,000次
电气寿命：≥10,000次
防护等级：IP40
CDM6S-630M/4338B Molded Case Circuit Protection Device Introduction
The CDM6S-630M/4338B molded case circuit protection device is a core electrical equipment designed for low-voltage distribution systems. Featuring modular design concepts and optimized structural engineering, it provides reliable overload and short-circuit protection for circuits up to 630A. The housing combines high-strength engineering plastics with flame-retardant materials, delivering excellent insulation performance and mechanical durability to ensure stable operation under complex working conditions.
At its functional core, the device integrates an intelligent trip mechanism with precisely calibrated thermal-magnetic protection system, enabling rapid identification of circuit abnormalities and prompt disconnection. The three-level linkage contact structure paired with silver alloy contact materials effectively reduces contact resistance while enhancing conductivity efficiency and extending electrical service life. Unique airflow channel design accelerates arc-extinguishing medium diffusion, maintaining stable arc suppression performance even at 6kA breaking capacity to ensure operator safety. The product supports 3-pole/4-pole configurations, adaptable to various power distribution network architectures including TN and TT systems.
This device is suitable for installation in distribution boxes and cabinets across industrial plants, commercial buildings, and infrastructure projects, providing graded protection for motors, transformers, and main circuits. Compact dimensions facilitate DIN rail mounting, with clearly marked ON/OFF position indicators on the operating handle and transparent protective cover preventing accidental contact. Maintenance personnel can observe internal status through viewing windows, supporting rapid module replacement without affecting overall system operation. Rigorous environmental adaptability testing verifies stable performance within temperature ranges of -25°C to +70°C and 95% relative humidity.
Selected technical parameters:
Rated operational current: 630A
Rated operational voltage: AC 400V
Number of poles: 3P/4P
Mechanical endurance: ≥20,000 operations
Electrical endurance: ≥10,000 operations
Protection class: IP40
（总字数：中文327字+英文329字=656字）
