DZ20L-630/4300 500A 100-300-500MA 塑殼漏電保護斷路器產品介紹
（中文版）
DZ20L-630/4300 500A是一款高性能塑殼漏電保護斷路器，專為低壓配電系統設計，適用于交流50Hz、額定電壓至400V的電路中，提供漏電、過載、短路等多重保護功能。其核心功能在于實時監測電路中的漏電電流，當檢測到漏電流達到設定閾值（100mA、300mA或500mA可調）時，設備將快速切斷電源，有效降低觸電風險和電氣火災隱患，保障人身安全與設備穩定運行。
該產品采用模塊化結構設計，具備緊湊的塑殼外觀和良好的機械強度，安裝維護便捷。額定電流500A的設計使其能夠承載較高負載，適用于工業廠房、商業建筑、公共基礎設施等中大型電力分配場景。通過優化滅弧系統與脫扣機構，設備在短路或過載情況下可快速響應，分斷能力優異，確保電路故障時及時隔離風險。
產品支持三段式漏電保護調節功能，用戶可根據實際需求靈活選擇100mA、300mA或500mA的漏電動作閾值，兼顧靈敏度與抗干擾性，適應不同環境下的安全防護要求。外殼材料具備耐高溫、抗沖擊特性，配合內部密封工藝，可在潮濕、粉塵等復雜工況中長期穩定工作。此外，設備提供清晰的漏電指示與故障復位功能，便于快速排查問題并恢復供電。
（英文版）
Product Introduction of DZ20L-630/4300 500A 100-300-500MA Molded Case Residual Current Circuit Breaker
The DZ20L-630/4300 500A is a high-performance molded case residual current circuit breaker designed for low-voltage power distribution systems. It operates in AC 50Hz circuits with rated voltage up to 400V, providing comprehensive protection against leakage currents, overloads, and short circuits. Its core function lies in real-time monitoring of leakage current. When the detected leakage reaches preset thresholds (adjustable among 100mA, 300mA, or 500mA), the device promptly interrupts the circuit, effectively mitigating electric shock hazards and electrical fire risks, thereby ensuring personnel safety and equipment reliability.
Featuring a modular structure, this product combines a compact molded case with robust mechanical durability, enabling easy installation and maintenance. With a rated current of 500A, it is capable of handling high-load applications, making it suitable for medium-to-large power distribution scenarios such as industrial plants, commercial buildings, and public infrastructure. The optimized arc-extinguishing system and trip mechanism ensure rapid response during short-circuit or overload conditions, delivering excellent breaking capacity to isolate faults efficiently.
The device supports three-stage adjustable leakage protection (100mA/300mA/500mA), allowing flexible configuration based on practical requirements to balance sensitivity and anti-interference performance across diverse environments. The housing material exhibits high-temperature resistance and impact tolerance, coupled with internal sealing technology, ensuring long-term stability in harsh conditions such as humidity or dust. Additionally, the product offers clear leakage indicators and fault reset functions, facilitating quick troubleshooting and power restoration.
應用場景/Application Scenarios
- 工業電力分配系統（電動機、變壓器保護）
Industrial power distribution systems (motor and transformer protection)
- 商業綜合體與高層建筑配電柜
Power cabinets in commercial complexes and high-rise buildings
- 醫院、學校等公共場所的電氣安全防護
Electrical safety protection in public facilities like hospitals and schools
- 戶外變電站與臨時供電設備
Outdoor substations and temporary power supply equipment
核心優勢/Core Advantages
- 多重保護集成，響應速度快；
Integrated multi-protection with rapid response.
- 漏電閾值可調，適配多樣化場景；
Adjustable leakage thresholds for diverse scenarios.
- 結構穩固，環境適應性較強；
Robust structure with strong environmental adaptability.
- 操作界面清晰，維護成本可控。
User-friendly interface and controllable maintenance costs.
（總字數：約420字 / Total Word Count: Approx. 420 words）
