塑壳漏电保护断路器DZ20L-250/4300 200A 100-300-500MA 延时0.3S
产品概述
塑壳漏电保护断路器DZ20L-250/4300 200A 100-300-500MA 延时0.3S是一款专为工业配电系统设计的多功能保护装置,适用于交流380V/230V电路中。该产品采用热磁式脱扣机构,具有漏电、过载和短路三重保护功能,可有效防止人身触电事故和设备绝缘损坏引发的安全隐患。其核心特点是可调节的剩余动作电流(100-300-500mA)和0.3秒延时功能,能够适应不同场景下的保护需求。11214
技术特点
该断路器采用电子式漏电检测技术,由零序电流互感器、控制电路和带过载保护的断路器组成。N极设计为可分断模式,与其它三极同步操作(4P结构),壳架电流250A,分断能力达15kA。产品具有板前接线方式,机械寿命超过1万次,电气寿命达10万次,操作方式为手柄直接操作。延时特性使其能有效避免电网瞬时波动引起的误动作,提升供电连续性。4715
应用场景
主要应用于建筑工地、工矿企业的大型设备总保护系统,如塔吊、配电柜等终端配电场合。其宽电流调节范围(100-500mA)适合不同环境下的漏电保护需求,特别适用于潮湿、多尘等严苛工况。透明外壳型号还便于直观观察内部状态,方便维护检查。21719
产品优势
采用复合式脱扣机构,响应速度快且稳定性好。模块化设计便于安装维护,紧凑的尺寸(117208324mm)节省安装空间。铜质接线端子确保良好的导电性和耐腐蚀性。延时功能可分级配合其他保护装置,实现选择性保护。产品经过严格测试,在-5°C至+40°C环境温度下均能可靠工作。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
塑壳漏电保护断路器DZ20L-250/4300 200A 100-300-500MA 延时0.3S
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