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JN-20继电器

更新:2014/9/24 11:14:27点击:
  • 产品品牌SNC松川
  • 产品型号JN-21,JN-22,JN-23
  • 在线订购
产品介绍
1 用途
JN-20系列逆流继电器用以防止直流电源产生反向电流,例如直流电机,并联运用到公共网路中或给蓄电池充电时,电源电流的方向有变更时继电器就动作。

2 结构概述
继电器系用极化原理制成,它有一个电压线圈和一个电流线圈,当电流大于800A时,没有电流线圈,继电器直接安装在汇流牌上。
继电器按额定电压分为十种,电压线圈分别按额定电压设计而定。
继电器按额定电电分为十二种,继电器的结构因额定电流的大小而有三种。
继电器有一个动合触点或动断触点。
安装时必须使继电器的轴处于水平位置,触点位于正上方。

3 技术数据
3.1 继电器的规范如表1示.

型 号

JN21

JN22

JN23

触点形式

1动合

1动断

1动合

1动断

1动合

1动断

电流规范

(A)

6,12,25,50,100,

150,200,300

400,600,800

1600

电流规范均应为

(A)

6,12,24,30,36,

48,50,60,110,220

6,12,24,30,36,

48,50,60,110,220

6,12,24,30,36,

48,50,60,110,220


接线螺杆的直径以额定电流(6到800A)的大小而不同见表2

电流(A)

6,12,25,50

100,150,200,300

400,600,800

直径(mm)

M6

M10

M12


3.2 动作值:继电器电流线圈中通入的反方向电流值不大于15%额定电流值时继电器应能动作。
3.3 返回值:继电器电流线圈中通入的反方向电流值为50%额定电流值时,断开电流回路能可靠的返回。
3.4 继电器电流线圈中,瞬时通过200%额定值的正向冲击电流1s后,继电器不应发生误动作和机构损坏等现象。
3.5 电压绕组功率消耗不大于3.5W。
3.6 电压不大于220V,电流不大于5A时,触点断开容量在直流有感负荷(时间常数为5H10-3S)电路中为100W。
3.7 当周围介质温度为+40℃时,继电器的电压线圈应能长期耐受110%的额定电压,其温升不超过60K。
3.8 继电器所有导电部分对于外壳介的介质强度应当耐受交流50Hz,1KV电压,历时1min无击穿或闪络现象。
3.9 继电器的重量2Kg.
3.10 继电器的外形及安装尺寸示于图1,图2,图3。3.10.1 JN-21型逆流继电器用直径M8的螺杆等紧固在屏板上,其外形尺寸见图1。
3.10.2 JN-22型逆流继电器连接在汇流排的截开处,电流线圈的出线头上附有安装零件,其外形尺寸见图2。
3.10.3 JN-23型逆流继电器没有电流线圈,直接安装在汇流排上,其外形尺寸见图3,当汇流排的宽度大于40mm时,应将汇流排按图4截割。

4 订货须知
4.1 继电器的名称和型号。
4.2 额定电流。
4.3 额定电压。
4.4 触点形式。


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