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JR20热过载继电器

更新:2013-9-10 15:33:38      点击:
  • 产品品牌   
  • 产品型号   JR20
  • 产品描述

    JR20热过载继电器,是上海人民电气有限公司 http://www.shamandq.com 为您提供的关于JR20热过载继电器型号,JR20热过载继电器价格,有关JR20热过载继电器的相关资料,上海...

产品介绍

JR20系列热过载继电器适用于交流50Hz/60Hz,主电路额定工作电压至660V,电流至0.1-630A的电力系统中作为三相交流电动机的过载和断相保护作用。

全系列产品均带有过载与断相保护;整定电流可以调节,在的空气温度?范围内具有温度补偿,有断开常闭触头的试验按钮,并呉有动作指示,自动复位功能,?可带有防止触电的护罩,具有独立安装、插入接触器和导轨等多种安装方式#

1.海拨高度:不超过2000m;
2.周围空气温度-5℃-?+40'C,24h内平均温度不超过+35℃;
3.大气条件:在+40℃时大气相对湿度不超过50%,在较低温度下可以有较高的相对湿度,最湿月的月平均最低温度不超过+25℃,该月的月平均最大相对湿度不超过90%,并考虑因湿度变化发生在产品上的凝露;
4.污染等级为3级;
5.安装而与垂直的倾斜度不超过5。;
6.在无爆炸危险介质中,且介质中无足以腐蚀金属和破坏绝缘的气体及导电尘埃存在的地方;
7.在有防雨雪设备及没有充满水蒸气的地方;
8.无显著摇动、冲击和振动的地方

 

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