jaygeorge1979 10+ year member
CarAudio.com Elite
hey guys
i am working on a project where the ultimate goal is to have a few horns go off if the car door opens...the goal isnt all that important...what is important is knowing what to look for in an automotive relay...so help me out //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
i plan on splicing into the wire that runs to the little light that turns on when the vehicle door is adjar....this wire will be the signal turn on wire for a relay (i am thinking maybe 30 amps?) which will have power incoming from the battery (either directly or thru the fusebox) and sending it out to a couple of vehicle horns...
what power rating shoud i look for in the relay? is there any problems with my general explanation? what about fuses? cuz i am aware when it comes to an automotive audio amplifier, the main battery positive cable needs a fuse; so will i need to fuse the incoming battery power wire running to the relay? what size fuse to use? the link i have posted is where i was browsing different relays and i cant figure out how some of them differ, or why some 4 pin relays are better than other 4 pin relays just cuz the internal construction is a little different...someone please shed some light on this for me ...thanks!
http://www.mouser.com/catalog/625/1299.pdf
i am working on a project where the ultimate goal is to have a few horns go off if the car door opens...the goal isnt all that important...what is important is knowing what to look for in an automotive relay...so help me out //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
i plan on splicing into the wire that runs to the little light that turns on when the vehicle door is adjar....this wire will be the signal turn on wire for a relay (i am thinking maybe 30 amps?) which will have power incoming from the battery (either directly or thru the fusebox) and sending it out to a couple of vehicle horns...
what power rating shoud i look for in the relay? is there any problems with my general explanation? what about fuses? cuz i am aware when it comes to an automotive audio amplifier, the main battery positive cable needs a fuse; so will i need to fuse the incoming battery power wire running to the relay? what size fuse to use? the link i have posted is where i was browsing different relays and i cant figure out how some of them differ, or why some 4 pin relays are better than other 4 pin relays just cuz the internal construction is a little different...someone please shed some light on this for me ...thanks!
http://www.mouser.com/catalog/625/1299.pdf