DZ20L-160/4300塑殼漏電保護(hù)斷路器產(chǎn)品介紹（中文版）
DZ20L-160/4300塑殼漏電保護(hù)斷路器是一款專為低壓配電系統(tǒng)設(shè)計(jì)的高性能電氣保護(hù)裝置，適用于額定電流160A的電路環(huán)境。該產(chǎn)品采用模塊化結(jié)構(gòu)設(shè)計(jì)，集漏電保護(hù)、過(guò)載保護(hù)及短路保護(hù)功能于一體，可有效提升電網(wǎng)運(yùn)行的安全性與穩(wěn)定性。其核心漏電保護(hù)功能設(shè)定值為300mA，配合精確的0.3秒延時(shí)動(dòng)作機(jī)制，既能避免瞬時(shí)電流波動(dòng)引發(fā)的誤動(dòng)作，又能在持續(xù)漏電情況下及時(shí)切斷故障電路，為工業(yè)廠房、商業(yè)建筑、公共設(shè)施等用電環(huán)境提供可靠防護(hù)。
產(chǎn)品殼體采用高強(qiáng)度工程塑料注塑成型，內(nèi)部搭載高靈敏度電磁脫扣機(jī)構(gòu)與熱動(dòng)雙金屬片復(fù)合保護(hù)系統(tǒng)。當(dāng)電路中出現(xiàn)漏電電流超過(guò)設(shè)定閾值時(shí)，專用零序電流互感器可快速檢測(cè)異常信號(hào)，經(jīng)電子放大單元處理后觸發(fā)脫扣機(jī)構(gòu)，確保在300mA漏電情況下精確實(shí)現(xiàn)0.3秒延時(shí)保護(hù)。分?jǐn)嗄芰_(dá)到行業(yè)先進(jìn)水平，可有效抑制短路電流產(chǎn)生的電弧能量。面板配置清晰的三位式機(jī)械指示器，可直觀顯示"分閘"、"合閘"、"故障"三種狀態(tài)，配合人性化操作手柄設(shè)計(jì)，便于日常維護(hù)與狀態(tài)監(jiān)控。
本產(chǎn)品適用于交流50Hz、額定工作電壓至400V的TN-S、TN-C-S等接地系統(tǒng)，可廣泛部署于配電箱主干線路保護(hù)、大型設(shè)備供電回路保護(hù)等場(chǎng)景。優(yōu)化的散熱通道設(shè)計(jì)使其能在-25℃至+55℃的寬溫域環(huán)境下穩(wěn)定工作，防護(hù)等級(jí)達(dá)到IP20標(biāo)準(zhǔn)。通過(guò)嚴(yán)謹(jǐn)?shù)某鰪S檢測(cè)流程，確保每臺(tái)設(shè)備在模擬過(guò)載、短路及漏電工況下均能準(zhǔn)確執(zhí)行保護(hù)動(dòng)作，為電力系統(tǒng)的連續(xù)運(yùn)行提供長(zhǎng)效保障。
DZ20L-160/4300 Moulded Case Leakage Circuit Breaker Product Introduction (English Version)
The DZ20L-160/4300 moulded case leakage circuit breaker is a high-performance electrical protection device specifically engineered for low-voltage distribution systems, suitable for circuits with 160A rated current. Featuring modular structural design, this product integrates earth leakage protection, overload protection, and short-circuit protection functions, effectively enhancing the safety and stability of power grid operations. With its core leakage protection threshold set at 300mA and a precise 0.3-second delayed action mechanism, it prevents nuisance tripping caused by transient current fluctuations while ensuring timely circuit interruption during sustained leakage conditions, providing reliable protection for industrial plants, commercial buildings, and public infrastructure.
Constructed with high-strength engineering plastic housing, the device incorporates a sensitive electromagnetic trip mechanism and bimetal thermal protection system. The specialized zero-sequence current transformer rapidly detects leakage signals exceeding preset thresholds, which are processed by electronic amplification units to activate the trip mechanism, achieving accurate 0.3-second delayed protection at 300mA leakage current. Its advanced breaking capacity effectively suppresses arc energy generated by short-circuit currents. The front panel features an intuitive three-position mechanical indicator displaying "OFF", "ON", and "TRIP" statuses, complemented by an ergonomic operating handle for simplified maintenance and status monitoring.
Designed for 50Hz AC systems with rated operational voltage up to 400V, this circuit breaker is compatible with TN-S and TN-C-S grounding systems. It is ideally deployed in main circuit protection of distribution cabinets and power supply loops for heavy-duty equipment. Optimized thermal dissipation channels ensure stable performance across a wide temperature range from -25℃ to +55℃, with protection class reaching IP20. Rigorous factory testing procedures verify each unit s precise protective responses under simulated overload, short-circuit, and leakage conditions, delivering sustained operational reliability for electrical systems. The product s compact dimensions and front-mounted wiring design significantly improve cabinet space utilization while simplifying installation procedures.
