塑殼漏電保護斷路器DZ20L-250/4300 200A 100-300-500MA 延時0.3S
產品概述
塑殼漏電保護斷路器DZ20L-250/4300 200A 100-300-500MA 延時0.3S是一款專為工業配電系統設計的多功能保護裝置，適用于交流380V/230V電路中。該產品采用熱磁式脫扣機構，具有漏電、過載和短路三重保護功能，可有效防止人身觸電事故和設備絕緣損壞引發的安全隱患。其核心特點是可調節的剩余動作電流（100-300-500mA）和0.3秒延時功能，能夠適應不同場景下的保護需求。11214
技術特點
該斷路器采用電子式漏電檢測技術，由零序電流互感器、控制電路和帶過載保護的斷路器組成。N極設計為可分斷模式，與其它三極同步操作（4P結構），殼架電流250A，分斷能力達15kA。產品具有板前接線方式，機械壽命超過1萬次，電氣壽命達10萬次，操作方式為手柄直接操作。延時特性使其能有效避免電網瞬時波動引起的誤動作，提升供電連續性。4715
應用場景
主要應用于建筑工地、工礦企業的大型設備總保護系統，如塔吊、配電柜等終端配電場合。其寬電流調節范圍（100-500mA）適合不同環境下的漏電保護需求，特別適用于潮濕、多塵等嚴苛工況。透明外殼型號還便于直觀觀察內部狀態，方便維護檢查。21719
產品優勢
采用復合式脫扣機構，響應速度快且穩定性好。模塊化設計便于安裝維護，緊湊的尺寸（117208324mm）節省安裝空間。銅質接線端子確保良好的導電性和耐腐蝕性。延時功能可分級配合其他保護裝置，實現選擇性保護。產品經過嚴格測試，在-5°C至+40°C環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
塑殼漏電保護斷路器DZ20L-250/4300 200A 100-300-500MA 延時0.3S
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