3RF2190-3AA04原装进口西门子产品
更新时间:2019-03-20 11:31:30 信息编号:3101397 发布者IP:120.42.57.18 浏览:85次![](http://img4.11467.com/u/20996064/151772635.jpg)
- 供应商
- 厦门彬硕自动化科技有限公司 商铺
- 认证
- 资质核验:已通过营业执照认证入驻顺企:第11年主体名称:厦门彬硕自动化科技有限公司组织机构代码:91350206051174051U
- 报价
- 人民币¥155.00元每个
- 品牌
- 西门子
- 型号
- 3RF2190-3AA04
- 关键词
- 3RF2190-3AA04,继电器,西门子
- 所在地
- 403416001@qq.com
- 联系电话
- 0592-5588182
- 手机号
- 18050007615
- 销售专员
- 欧阳崇优 请说明来自顺企网,优惠更多
产品详细介绍
电磁继电器一般由 电磁铁、衔铁、弹簧片、触点等组成的,其工作电路由低压控制电路和高压工作电路两部分构成。电磁继电器还可以实现远距离控制和自动化控制。只要在线圈两端加上一定的电压,线圈中就会流过一定的电流,从而产生电磁效应,衔铁就会在电磁力吸引的作用下克服返回弹簧的拉力吸向铁芯,从而带动衔铁的动触点与静触点(常开触点)吸合。当线圈断电后,电磁的吸力也随之消失,衔铁就会在弹簧的反作用力返回原来的位置,使动触点与原来的静触点(常闭触点)释放。这样吸合、释放,从而达到了在电路中的导通、切断的目的。对于继电器的“常开、常闭”触点,可以这样来区分:继电器线圈未通电时处于断开状态的静触点,称为“常开触点”;处于接通状态的静触点称为“常闭触点”。
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