CDM3-63S/4200B 20A 塑壳断路器中英文产品介绍
中文介绍：
CDM3-63S/4200B 20A塑壳断路器是一款专为低压配电系统设计的电路保护装置，适用于额定电流20A的配电网络环境。产品采用模块化结构设计，集过载保护、短路保护与控制功能于一体，可有效保障用电设备的安全运行。
结构设计方面，该断路器配备高强度工程塑料外壳，具备良好的绝缘性能与机械强度。内部采用优化型双金属片热脱扣机构配合电磁瞬时脱扣装置，能够快速响应线路异常情况。触头系统采用银合金材料制造，有效降低接触电阻，延长电气寿命。特殊设计的灭弧系统可加速断开时电弧的熄灭，提升分断可靠性。
本产品适用于交流50Hz、额定工作电压至400V的配电线路，可广泛应用于建筑配电箱、工业控制柜、商业照明系统等场景。紧凑的安装尺寸设计（具体尺寸需根据实际型号参数确认）便于在有限空间内进行密集排布，支持导轨安装方式，简化施工流程。操作手柄具备清晰的分合闸指示，支持远程机械联锁扩展功能。
在安全防护方面，产品通过多重结构优化实现全隔离防护，有效防止意外触电风险。外壳防护等级符合常规配电环境要求，可适应-5℃至+40℃的环境温度。产品支持垂直或水平安装，建议定期检查触头清洁度并保持通风良好的运行环境。
英文介绍：
The CDM3-63S/4200B 20A Molded Case Circuit Breaker is a circuit protection device specifically designed for low-voltage distribution systems, suitable for 20A rated current applications. Integrating overload protection, short-circuit protection and control functions, this modular device ensures safe operation of electrical equipment.
Featuring a high-strength engineering plastic enclosure, the breaker demonstrates excellent insulation properties and mechanical durability. The internal mechanism combines a bimetal thermal trip unit with electromagnetic instantaneous release, enabling rapid response to circuit abnormalities. Silver-alloy contacts minimize resistance and extend electrical endurance. The specially designed arc extinguishing system enhances breaking reliability by accelerating arc extinction during disconnection.
Applicable to 50Hz AC circuits with rated operational voltage up to 400V, this product is widely used in building distribution boxes, industrial control cabinets, and commercial lighting systems. Its compact dimensions (specific measurements subject to actual model parameters) allow dense arrangement in limited spaces, supporting DIN rail mounting for simplified installation. The ergonomic handle provides clear ON/OFF position indication and allows optional mechanical interlock extensions.
Safety features include fully isolated protection through structural optimization, effectively preventing accidental electric shock. The enclosure protection rating meets general distribution environment requirements, with operational temperature range from -5℃ to +40℃. Suitable for vertical or horizontal installation, routine maintenance should include contact cleaning verification and ensuring adequate ventilation during operation.
（总字数：中文309字+英文304字=613字）
