does anyone know the name of a relay "disconnect when power on"? 老生长谈2015-09-15 01:38:17

looking for a disconnect relay but don't know its english name.

how it works - when the signal power is on, the switching (main) power is to be off.  when signal power is turned off, the main power should be back to connected.  12v 1a.

 

thanks.

你说的不就是标准继电器吗？

your photo shows 5 terminals, there is a NC.

汽配店啊！几刀一个

normally closed (NC) relay

Relay, normally close

just checked ebay for 5 terminal relays, this one sounds like

感谢以上各位 ：）but challenging to find the right current rating

你就不会买个车用的12v200A的再接个12v的小继电器(要开要关都有)？2个加起来也不到10块

那是我的最后一招。不过哪有那么便宜？我看到的$24左右。

买了个12v 200a continuous NC relay $22

Black Plastic Car Automotive Heavy Duty 12V DC Relay 200A Automo

我一开始看了这个，它是个starter relay, 不说continuous 量，不敢冒险

启动电流是正常3倍，就是除以3也是你要求1A的60倍

不是啊，连续电流要175A，不是1A。1A是控制电流

这么便宜的东西并2个3个又何妨？

太阳能的东西都是虚功率， 一般有个 1/4就不错了

非也。太阳能给电池充电。电池放电时电流很大，我烧过150a的fuse，175a ok