NH40系列负荷隔离开关(以下简称开关)是我公司引进欧洲先进技术研制而成，该产品具有国际九十年代末期水平,是国内同类产品中理想的更新换代产品。开关广泛适用于建筑、电力、石油化工及其它行业的配电系统和自动化系统。

     模块化设计结构，具有灵活多样的组合性，采用玻璃纤维增强不饱合聚脂树脂制造外壳，有很高的介电性能，防护能力和可靠的操作安全性。操作机构是弹簧蓄能、瞬时释放的加速机构瞬时接通与分断双断点触头结构。与操作手柄的速度无关，极大提高了各项电气性能与机械性能。

     多种结构与操作方式，有直接观察触头通断状态的窗口，有柜内、柜外操作，有正面、侧面操作，有板后接线。开关造型美观、新颖、简洁、体积小功能全，是同类产品中理想的选择。

     产品特点：弹簧蓄能瞬时释放时加速机构实现了快速接通与分断（13.8米/秒），与操作手枘速度无关、极大提高了熄灭电弧能力。由玻璃纤维增强不饱和聚脂树脂制造的外壳具有良好的阻燃性能、介电性能、抗碳化性和抗冲击性。并联双断点触头具有自洁作用。所有触头材料是铜镀银合金，具有两个分离触头面。隔离距离大。在“0”位时，可同时用三把锁锁住手柄，可靠避免误操作。

     产品用途:NH40系列负荷隔离开关主要用于交流50Hz，额定电压660V，直流额定电压440V，额定电流至4000A。用于不频繁接通与分断电路与线路的隔离之用。
NH40负荷隔离开关
NH40-63A/3,NH40-80A/3,NH40-100A/3,NH40-125A/3,NH40-160A/3,NH40-200A/3,NH40-250A/3,NH40-315A/3,NH40-400A/3,NH40-500A/3,NH40-630A/3,NH40-800A/3,NH40-1000A/3,NH40-1250A/3,NH40-1600A/3,NH40-2000A/3,NH40-2500A/3,NH40-3150A/3,NH40-4000A/3, NH40-63A/4,NH40-80A/4,NH40-100A/4,NH40-125A/4,NH40-160A/4,NH40-200A/4,NH40-250A/4,NH40-315A/4,
NH40-400A/4,NH40-500A/4,NH40-630A/4,NH40-800A/4,NH40-1000A/4,NH40-1250A/4,NH40-1600A/4,NH40-2000A/4, NH40-2500A/4, NH40-3150A/4,NH40-4000A/4,
NH40负荷隔离开关(“J”为柜外操作)
NH40-63A/3J,NH40-80A/3J,NH40-100A/3J,NH40-125A/3J,NH40-160A/3J,NH40-200A/3J,NH40-250A/3J,NH40-315A/3J,NH40-400A/3J,NH40-500A/3J,NH40-630A/3J,NH40-800A/3J,NH40-1000A/3J,NH40-1250A/3J,NH40-1600A/3J,NH40-2000A/3J, NH40-2500A/3J,NH40-3150A/3J,NH40-4000A/3J,

 NH40-63A/4J,NH40-80A/4J,NH40-100A/4J,NH40-125A/4J,NH40-160A/4J,NH40-200A/4J,NH40-250A/4J,NH40-315A/4J,NH40-400A/4J,NH40-500A/4J,NH40-630A/4J,NH40-800A/4J,NH40-1000A/4J,NH40-1250A/4J,NH40-1600A/4J,NH40-2000A/4J, NH40-2500A/4J, NH40-3150A/4J,NH40-4000A/4J,
NH40负荷隔离开关(“K”为可视操作带观察窗)
NH40-63A/3JK,NH40-80A/3JK,NH40-100A/3JK,NH40-125A/3JK,NH40-160A/3JK,NH40-200A/3JK,
NH40-250A/3JK,NH40-315A/3JK,NH40-400A/3JK,NH40-500A/3JK,NH40-630A/3JK,NH40-800A/3JK,NH40-1000A/3JK,NH40-1250A/3JK,NH40-1600A/3JK,NH40-2000A/3JK,NH40-2500A/3JK,NH40-3150A/3JK,NH40-4000A/3JK, 

NH40-63A/4JK,NH40-80A/4JK,NH40-100A/4JK,NH40-125A/4JK,NH40-160A/4JK,NH40-200A/4JK,
NH40-250A/4JK,NH40-315A/4JK,NH40-400A/4JK,NH40-500A/4JK,NH40-630A/4JK,NH40-800A/4JK,NH40-1000A/4JK,NH40-1250A/4JK,NH40-1600A/4JK,NH40-2000A/4JK,NH40-2500A/4JK,NH40-3150A/4JK,NH40-4000A/4JK,
柜外侧面操作带观察窗
NH40-63A/3JKC,NH40-80A/3JKC,NH40-100A/3JKC,NH40-125A/3JKC,NH40-160A/3JKC,NH40-200A/3JKC,NH40-250A/3JKC,NH40-315A/3JKC,NH40-400A/3JKC,NH40-500A/3JKC,NH40-630A/3JKC,NH40-800A/3JKC,NH40-1000A/3JKC,NH40-1250A/3JKC,NH40-1600A/3JKC,NH40-2000A/3JKC,NH40-2500A/3JKC,NH40-3150A/3JKC,NH40-4000A/3JKC, 

NH40-63A/4JKC,NH40-80A/4JKC,NH40-100A/4JKC,NH40-125A/4JKC,NH40-160A/4JKC,NH40-200A/4JKC,NH40-250A/4JKC,NH40-315A/4JKC,NH40-400A/4JKC,NH40-500A/4JKC,NH40-630A/4JKC,NH40-800A/4JKC,NH40-1000A/4JKC,NH40-1250A/4JKC,NH40-1600A/4JKC,NH40-2000A/4JKC,NH40-2500A/4JKC,NH40-3150A/4JKC,NH40-4000A/4JKC,
“H”为柜后操作，“B”为板后接线,“F”为辅助触点