If i understand your question if the horn is grounded on one side and connected as you suggest the relay will not perform any useful function and the full current of the horn will have to come from the input. Ground serves as a safety measure in circuits that are hooked up to earth ground.
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Does a relay need to be grounded. Fuck that puto 209 996 5244 jeff kingfishcustoms 209 535 4120 mino kingfishcustoms209 adex original aircraft hydraulics 626 798 2156 or email email protected save share. You can control a device load on either the power going in side of it or the ground side. So lets just focus on what an automotive relays is. For gigavac internal armature style relays gigavac gh1 g8 g61 g50 etc the relay base must always be grounded see fig. If they think they dont need to be grounded you can do what another dumbass layitlow person did and was make their pump rack out of fucking wood and screw the solenoids to the wood and couldnt understand why the setup did nothing lol. Because it has a direct connection with earth ground it is only to sink electricity to the earth giving less risk of a fire.
This also conveniently works for some sensors whose output is not isolated from the chassis for example many nissan cam sensors. Because the coils need to be grounded to the engine to keep the loop area small that means that the star point has to be the engine. A relay does the same. That way when you do have your high beams on the current from that goes to the dash switch first and if that is off the electricity cant get to the 8586 circuit to create the magnetic force to close the 3087 circuit which turns on your led lights. If the relay is in a metal housing it may have only one pin for the coil. Just to be even more confusing.
Joined jul 14 2004. In which case you may as well throw out the relay. 2 unless the voltage across the contacts is less than the specified dielectric voltage breakdown between the coil and case. If your relay is in a plastic housing it will have 2 pins for the coil usually reversible. With our wiring harness all you need to do is cut the wire coming from the switch to the 30 prong on the relay and wire it to your high beam lead or your backup light wire. You will usually see 3 4 and 5 prong relays.
It takes the incoming voltage and once grounded will send that voltage to other places. Spehro pefhany jun 5 18 at 2138 1. The second pin or ground is the housing which must be mounted direct to chassis or otherwise grounded. Mintz so fresh. The relay is a load.
Gallery of Does A Relay Need To Be Grounded
