DZ20L-400/4340B250A100300500MAAC220V0.3S塑壳漏电保护断路器中英文产品介绍
中文介绍
DZ20L-400/4340B250A100300500MAAC220V0.3S塑壳漏电保护断路器是一款专为低压配电系统设计的智能化保护装置，适用于交流50Hz、额定电压220V的电路中，能够有效实现线路过载、短路、漏电等多重保护功能。产品采用模块化设计，结构紧凑，操作便捷，广泛应用于工业、商业及民用配电场景，为用电设备及人身安全提供可靠保障。
本产品核心参数包括：额定电流250A，漏电动作电流覆盖100mA、300mA、500mA多档可调，动作时间仅需0.3秒，确保在发生漏电或故障时快速切断电源，最大限度降低电气火灾风险及人身触电隐患。其分断能力优异，可承载高短路电流冲击，保护后端设备免受损害。壳体采用高阻燃、耐高温材料制成，机械强度高，适应复杂环境下的长期稳定运行。
产品设计注重实用性，配备清晰的运行状态指示窗口，支持手动分合闸操作，并具备自动复位功能。内部触头系统采用银合金材质，导电性能优异且耐电弧烧蚀，有效延长使用寿命。灭弧系统通过优化磁场分布，显著提升电弧熄灭效率，进一步保障分断过程的安全性。适用于配电箱、电机控制柜、建筑工地临时用电等场景，满足多样化电路的防护需求。
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.
