RELAYS - Latch V Momentary types

[ElecricRatch]

I'm talking about creating the timer in the software - the app. Easier as the relays can be fully controlled that way.

 

[tazz]

True would make life easier.....remember micro can only deal in ms....so 3 seconds=3000ms

 

[ElecricRatch]

Here is the complete circuit.

[https://farm8.staticflickr.com/7322/12478065504_f135933530_o.png

 

[tazz]

Interesting project.....good idea to used another relay to turn on an alarm, to protect you investment

 

[ElecricRatch]

Hey guys.

As the BT switch delivers 4 x 30A - could I have to of them wired together to push 60A to the main controller?

Is that safe? What's the best way to physically wire that together?

Then I could lose a relay and simplify it further. Or is a relay preferable?

See pic:


12497082373_b6b1a34cfe_o.png

 

[tazz]

Problem is if one fails, which is uncommon but can happen ...the one poor relay gets the full load, not good....get the right size relay and if it does fail, it fails safe.

 

[ElecricRatch]

Hi guys.

What does it mean when a device must 'drain to +12v' ???

i have a switch that has 3 terminals. The manufacturer says 1 is earth, 1 is direct to battery +12v and 1 drains to +12v

Any help appreciated.