塑殼漏電保護(hù)斷路器DZ20L-250/4300 200A 100-300-500MA 延時(shí)0.3S
產(chǎn)品概述
塑殼漏電保護(hù)斷路器DZ20L-250/4300 200A 100-300-500MA 延時(shí)0.3S是一款專為工業(yè)配電系統(tǒng)設(shè)計(jì)的多功能保護(hù)裝置，適用于交流380V/230V電路中。該產(chǎn)品采用熱磁式脫扣機(jī)構(gòu)，具有漏電、過載和短路三重保護(hù)功能，可有效防止人身觸電事故和設(shè)備絕緣損壞引發(fā)的安全隱患。其核心特點(diǎn)是可調(diào)節(jié)的剩余動(dòng)作電流（100-300-500mA）和0.3秒延時(shí)功能，能夠適應(yīng)不同場景下的保護(hù)需求。11214
技術(shù)特點(diǎn)
該斷路器采用電子式漏電檢測技術(shù)，由零序電流互感器、控制電路和帶過載保護(hù)的斷路器組成。N極設(shè)計(jì)為可分?jǐn)嗄Ｊ�，與其它三極同步操作（4P結(jié)構(gòu)），殼架電流250A，分?jǐn)嗄芰_(dá)15kA。產(chǎn)品具有板前接線方式，機(jī)械壽命超過1萬次，電氣壽命達(dá)10萬次，操作方式為手柄直接操作。延時(shí)特性使其能有效避免電網(wǎng)瞬時(shí)波動(dòng)引起的誤動(dòng)作，提升供電連續(xù)性。4715
應(yīng)用場景
主要應(yīng)用于建筑工地、工礦企業(yè)的大型設(shè)備總保護(hù)系統(tǒng)，如塔吊、配電柜等終端配電場合。其寬電流調(diào)節(jié)范圍（100-500mA）適合不同環(huán)境下的漏電保護(hù)需求，特別適用于潮濕、多塵等嚴(yán)苛工況。透明外殼型號(hào)還便于直觀觀察內(nèi)部狀態(tài)，方便維護(hù)檢查。21719
產(chǎn)品優(yōu)勢
采用復(fù)合式脫扣機(jī)構(gòu)，響應(yīng)速度快且穩(wěn)定性好。模塊化設(shè)計(jì)便于安裝維護(hù)，緊湊的尺寸（117208324mm）節(jié)省安裝空間。銅質(zhì)接線端子確保良好的導(dǎo)電性和耐腐蝕性。延時(shí)功能可分級(jí)配合其他保護(hù)裝置，實(shí)現(xiàn)選擇性保護(hù)。產(chǎn)品經(jīng)過嚴(yán)格測試，在-5°C至+40°C環(huán)境溫度下均能可靠工作。61120
English Introduction
The molded case leakage circuit breaker DZ20L-250/4300 200A 100-300-500MA with 0.3S delay is a comprehensive protection device designed for industrial power distribution systems. It features adjustable residual operating current (100-300-500mA) and time-delay characteristics, providing reliable protection against electric shock, overload and short circuit in 380V/230V AC circuits. The 4-pole design includes a breakable N-pole synchronized with three phase poles. 121415
With 250A frame current and 15kA breaking capacity, this breaker adopts electronic leakage detection technology through zero-sequence current transformers. The front-mounted wiring terminals facilitate easy installation, while the visible trip indicator allows quick status monitoring. The 0.3-second delay function effectively prevents nuisance tripping caused by temporary power fluctuations. 4719
Ideal for construction sites and industrial plants, it serves as main protection for heavy equipment like tower cranes and distribution cabinets. The compact dimensions (117208324mm) save panel space without compromising performance. Copper alloy terminals ensure excellent conductivity and corrosion resistance. The product demonstrates stable operation within -5°C to +40°C temperature range. 1620
The thermal-magnetic trip mechanism combines quick response with precise protection coordination. Modular construction simplifies maintenance, while the 100,000 electrical cycles guarantee long service life. Available in standard and transparent housing versions, it meets diverse application requirements in harsh environments including high humidity and dust-prone areas. 111714
塑殼漏電保護(hù)斷路器DZ20L-250/4300 200A 100-300-500MA 延時(shí)0.3S
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