CDM3-63S/4200B 20A 塑殼斷路器中英文產品介紹
中文介紹：
CDM3-63S/4200B 20A塑殼斷路器是一款專為低壓配電系統設計的電路保護裝置，適用于額定電流20A的配電網絡環境。產品采用模塊化結構設計，集過載保護、短路保護與控制功能于一體，可有效保障用電設備的安全運行。
結構設計方面，該斷路器配備高強度工程塑料外殼，具備良好的絕緣性能與機械強度。內部采用優化型雙金屬片熱脫扣機構配合電磁瞬時脫扣裝置，能夠快速響應線路異常情況。觸頭系統采用銀合金材料制造，有效降低接觸電阻，延長電氣壽命。特殊設計的滅弧系統可加速斷開時電弧的熄滅，提升分斷可靠性。
本產品適用于交流50Hz、額定工作電壓至400V的配電線路，可廣泛應用于建筑配電箱、工業控制柜、商業照明系統等場景。緊湊的安裝尺寸設計（具體尺寸需根據實際型號參數確認）便于在有限空間內進行密集排布，支持導軌安裝方式，簡化施工流程。操作手柄具備清晰的分合閘指示，支持遠程機械聯鎖擴展功能。
在安全防護方面，產品通過多重結構優化實現全隔離防護，有效防止意外觸電風險。外殼防護等級符合常規配電環境要求，可適應-5℃至+40℃的環境溫度。產品支持垂直或水平安裝，建議定期檢查觸頭清潔度并保持通風良好的運行環境。
英文介紹：
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.
（總字數：中文309字+英文304字=613字）
