產品名稱：塑殼漏電保護斷路器
Product Name: Molded Case Residual Current Circuit Breaker
型號：DZ20L-160/4340B
Model: DZ20L-160/4340B
中文介紹：
DZ20L-160/4340B塑殼漏電保護斷路器是一款專為低壓配電系統設計的高性能保護裝置，適用于交流50Hz、額定工作電壓至400V的電路中，可實現對線路漏電、過載及短路故障的快速檢測與分斷保護。產品采用模塊化結構設計，具備操作便捷、安全可靠的特點，可廣泛應用于工業廠房、商業建筑、公共設施等場景的電力系統保護。
該產品額定電流為160A，漏電動作電流值為500mA，能有效監測線路中的漏電電流變化。當檢測到漏電電流超過設定閾值時，斷路器可在0.1秒內快速切斷電源，顯著降低觸電風險與電氣火災隱患。其直流24V輔助控制電源設計，支持外接信號擴展功能，便于集成到自動化控制系統中，滿足智能化配電管理需求。
產品外殼采用高強度工程塑料注塑成型，具備優異的絕緣性能與抗沖擊能力。內部搭載多重滅弧系統，可快速分斷故障電流并抑制電弧產生。直觀的機械狀態指示窗口配合手動分合閘操作機構，簡化了設備調試與維護流程。四極（3P+N）結構設計可適配三相四線制配電網絡，提供全面的線路保護。
英文介紹：
The DZ20L-160/4340B molded case residual current circuit breaker is a high-performance protection device specifically designed for low-voltage distribution systems. It operates in circuits with AC 50Hz and rated working voltage up to 400V, providing rapid detection and interruption of leakage currents, overloads, and short-circuit faults. Featuring a modular structural design, this product combines operational convenience with safety and reliability, making it suitable for power system protection in industrial plants, commercial buildings, and public infrastructure.
With a rated current of 160A and residual current operating value of 500mA, the device effectively monitors leakage current variations in circuits. Upon detecting leakage currents exceeding the preset threshold, the breaker can interrupt power supply within 0.1 seconds, significantly reducing electric shock risks and fire hazards. The integrated 24V DC auxiliary control power supply supports external signal expansion, enabling seamless integration into automated control systems for intelligent power management.
The housing is molded from high-strength engineering plastics, offering excellent insulation and impact resistance. The multi-stage arc extinguishing system ensures rapid fault current interruption and effective arc suppression. A clear mechanical status indicator window and manual switching mechanism simplify device commissioning and maintenance. The four-pole (3P+N) configuration is compatible with three-phase four-wire distribution networks, delivering comprehensive circuit protection.
技術參數（Technical Parameters）：
額定電流（Rated Current）: 160A
漏電動作電流（Residual Operating Current）: 500mA
極數（Number of Poles）: 4P（3P+N）
額定工作電壓（Rated Operational Voltage）: AC 400V
控制電源電壓（Control Supply Voltage）: DC 24V
機械壽命（Mechanical Endurance）: ≥10,000次（cycles）
安裝方式（Mounting Type）: 導軌/固定式（DIN rail/Fixed）
產品優勢（Advantages）：
- 雙重保護機制：同步實現漏電保護與過流保護功能
Dual Protection: Integrates residual current and overcurrent protection
- 寬溫適應性：-25℃至+70℃環境下穩定運行
Temperature Resistance: Reliable operation from -25℃ to +70℃
- 擴展兼容性：支持報警觸點與遠程分閘信號接入
Expandable Functionality: Compatible with alarm contacts and remote tripping signals
- 維護便利性：可拆卸式端子設計簡化線路連接
Service-Friendly: Detachable terminals simplify wiring
- 節能設計：低功耗控制電路降低系統運行成本
Energy Efficiency: Low-power control circuit reduces operational costs
