DZ20L-400/4340B250A100300500MAAC220V0.3S塑殼漏電保護斷路器中英文產品介紹
中文介紹
DZ20L-400/4340B250A100300500MAAC220V0.3S塑殼漏電保護斷路器是一款專為低壓配電系統設計的智能化保護裝置，適用于交流50Hz、額定電壓220V的電路中，能夠有效實現線路過載、短路、漏電等多重保護功能。產品采用模塊化設計，結構緊湊，操作便捷，廣泛應用于工業、商業及民用配電場景，為用電設備及人身安全提供可靠保障。
本產品核心參數包括：額定電流250A，漏電動作電流覆蓋100mA、300mA、500mA多檔可調，動作時間僅需0.3秒，確保在發生漏電或故障時快速切斷電源，最大限度降低電氣火災風險及人身觸電隱患。其分斷能力優異，可承載高短路電流沖擊，保護后端設備免受損害。殼體采用高阻燃、耐高溫材料制成，機械強度高，適應復雜環境下的長期穩定運行。
產品設計注重實用性，配備清晰的運行狀態指示窗口，支持手動分合閘操作，并具備自動復位功能。內部觸頭系統采用銀合金材質，導電性能優異且耐電弧燒蝕，有效延長使用壽命。滅弧系統通過優化磁場分布，顯著提升電弧熄滅效率，進一步保障分斷過程的安全性。適用于配電箱、電機控制柜、建筑工地臨時用電等場景，滿足多樣化電路的防護需求。
English Introduction
The DZ20L-400/4340B250A100300500MAAC220V0.3S Molded Case Leakage Circuit Breaker is an intelligent protection device designed for low-voltage power distribution systems. It is suitable for circuits with AC 50Hz and rated voltage of 220V, providing comprehensive protection against overload, short circuit, and leakage current. Featuring a modular design and compact structure, this product ensures ease of operation and is widely used in industrial, commercial, and residential power distribution scenarios to safeguard electrical equipment and personal safety.
Key parameters include a rated current of 250A, adjustable leakage tripping thresholds at 100mA, 300mA, and 500mA, and a rapid response time of 0.3 seconds. These specifications enable quick power interruption in case of leakage or faults, significantly reducing risks of electrical fires and electric shock. With excellent breaking capacity, the device can withstand high short-circuit currents, protecting downstream equipment from damage. The housing is constructed from flame-retardant and high-temperature-resistant materials, ensuring mechanical durability and stable performance in harsh environments.
Practical design elements include a visible status indicator window, manual switching controls, and an automatic reset function. The contact system utilizes silver alloy for superior conductivity and resistance to arc erosion, enhancing service life. The optimized arc extinguishing mechanism improves magnetic field distribution, ensuring efficient arc suppression during circuit interruption. Ideal for applications such as distribution panels, motor control cabinets, and temporary construction site power systems, this circuit breaker delivers adaptable and reliable protection for diverse electrical circuits.
