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JR28(LR2)热过载继电器

更新:2013/9/10 15:40:39      点击:
  • 产品品牌   
  • 产品型号   JR28(LR2)
  • 产品描述

    JR28(LR2)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JR28(LR2)热过载继电器型号,JR28(LR2)热过载继电器价格,有关JR2...

产品介绍

型号及含义

结构特征

热继电器为立体布置、造型新颖、美观、具有断相保护、温度补偿、整定电流可调、自动或手动复位任意选择、有脱扣指示、具有电气上分开的常闭、常开辅助触头,安装面积小,安装方式多样等功能,具有测试按钮和停止按钮。可进行动作可靠性检查。有防止手指触电护罩,使用安全。有闭锁装置防止误操作。

拔高度:不超过2000m

周围空气温度不超过+40.24h平均温度不超过+35,周围空气温度的下 -5;

大气条件:最离混度为+40时,空气相对湿度不超过50%,在较低混度下以允许有较的相对湿度;例如20时达90%.对由于温化偶尔产的凝取特殊的;

污染等级:3级;

安装类别:;

安装面与垂亘面的斜度不超过

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;

在有防雨雪设备及没有充满水气的地方;

在无显著摇动冲击和动的地方;

型号
JR28-25
JR28-36
JR28-93
额定壳架电流
25
36
93
额定绝缘电压V
660
660
660
断相保护
手动和自动复位
温度补偿
脱扣指示
测试按钮
停止按钮
安装方式
组合式独立安装
组合式独立安装
组合式独立安装
辅助触头
1N0+1NC
1N0+1NC
1N0+1NC
AC-15 380V额定电流A
0.95
0.95
0.95
DC-13 220V额定电流A
0.13
0.13
0.13
导线截
囬识
mm
主回路
单芯或绞合线
1~4
5~10
6~35
接线螺钉
M4
M4
M10
单芯或绞合线
0.5-2.5
0.5-2.5
0.5-2.5
辅助回路
接线螺钉
M3.5
M3.5
M3.5

产品的保护特性

 

项目
序号
额定电流倍数
动作时间
试验动作
过载保护
1
1.05
 
2小时内不动作
冷态动作
2
1.2
 
2小时内动作
热态(接序号1后)开始
3
1.5
 
2分钟内动作
热态(按序号1后)开始
4
7.2
 
2s
冷态开始
断相保护
5
任意二相
另一相
2小时内不动作
冷态开始
1
0.9
 
 
6
1.15
0
2小时内动作
热态(按序号5后)开始

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