parallel/series???? - SV650.org

29-11-05, 05:06 PM

how do i wire horns in parallel?? i have one seperate earth feed for each horn(theres 2) and one live supply ,when my (1)live feed comes out the relay ive wired 2 outputs from that terminal to horns ,am i right in thinking ,if i 'piggy back 'from one horns live feed to the other horn that they are in parallel???( run a wire from horn to horn(live feed)) the relay is ok and each horn works fine independently ,but when i put the 2 horns together the fuse keeps on blowing..???i have got the printout re parallel/series but i cant picture it on the bike,,please advise

29-11-05, 07:30 PM

Hi Jim.

Wiring in parallel the simple explanation. Wire up one horn so that it works (like you said you were going to) and THEN link (for example) terminal 1 on horn "a" to terminal 1 on horn "b". Connect terminal 2 on horn "a" to terminal 2 on horn "b". They are more likely to be marked "+" and "-". Make sure "+" connects to "+" and so on.

Good luck sir!

Garry

29-11-05, 07:34 PM

Yep, I think you've got the right plan.

To keep it simple.
Series would be from: live feed - into horn A - then into horn B - then earth.

Parallel would be from: live feed into both horns - out from both to earth.

Series is like two knots side by side on one piece of string, parallel is like rungs along a ladder.

HTH.

TSM · 29-11-05, 07:42 PM

already shown.

Code:

Series
(-) ------------------------------
                                  |
(+) ------ Horn1 ----- Horn2 ----- 

Parallel
(-) ---------------------
             |           |
           Horn1       Horn2
             |           |
(+) ---------------------

BillyC · 29-11-05, 08:03 PM

Wire in parrallel... if you wire in series, the horns will not receive the correct voltages.

29-11-05, 08:19 PM

Hi again Jim.

Just read the whole post through again. You've got it spot on now mate. The fuse is blowing because it can't handle the current (either sustained or "INRUSH" (initially high but dropping)). What rating of fuse are you using?

The relay is there to switch a higher current than the horn switch can cope with- therefore the supply which runs through its contacts must be suited for the load i.e. the TWO horns (probably about 10A). Your existing horn circuit (switch, fuse and cabling) runs the relay. The relay has a nice beefy feed from the battery via a (perhaps 10 or 15A) fuse to the horns.

Some might be tempted to connect the supply that works the relay to the load contacts OF the relay (in other words where the horns connect). This WILL just kill the fuse.

Cheers,
Garry

29-11-05, 05:06 PM	#1
jim@55 Guest Posts: n/a	parallel/series???? how do i wire horns in parallel?? i have one seperate earth feed for each horn(theres 2) and one live supply ,when my (1)live feed comes out the relay ive wired 2 outputs from that terminal to horns ,am i right in thinking ,if i 'piggy back 'from one horns live feed to the other horn that they are in parallel???( run a wire from horn to horn(live feed)) the relay is ok and each horn works fine independently ,but when i put the 2 horns together the fuse keeps on blowing..???i have got the printout re parallel/series but i cant picture it on the bike,,please advise

29-11-05, 07:42 PM	#4
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	already shown. Code: Series (-) ------------------------------ \| (+) ------ Horn1 ----- Horn2 ----- Parallel (-) --------------------- \| \| Horn1 Horn2 \| \| (+) --------------------- __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

29-11-05, 08:03 PM	#5
BillyC Moderator Mega Poster Join Date: Nov 2003 Location: The exiles of Kent Posts: 2,184	Wire in parrallel... if you wire in series, the horns will not receive the correct voltages. __________________ SV650 K3 - Gone. Now a member of the SV650.org Kawasaki brigade!

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29-11-05, 07:30 PM	#2
independentphoto Guest Posts: n/a	Hi Jim. Wiring in parallel the simple explanation. Wire up one horn so that it works (like you said you were going to) and THEN link (for example) terminal 1 on horn "a" to terminal 1 on horn "b". Connect terminal 2 on horn "a" to terminal 2 on horn "b". They are more likely to be marked "+" and "-". Make sure "+" connects to "+" and so on. Good luck sir! Garry

29-11-05, 07:34 PM	#3
haggis Guest Posts: n/a	Yep, I think you've got the right plan. To keep it simple. Series would be from: live feed - into horn A - then into horn B - then earth. Parallel would be from: live feed into both horns - out from both to earth. Series is like two knots side by side on one piece of string, parallel is like rungs along a ladder. HTH.

29-11-05, 08:19 PM	#6
independentphoto Guest Posts: n/a	Hi again Jim. Just read the whole post through again. You've got it spot on now mate. The fuse is blowing because it can't handle the current (either sustained or "INRUSH" (initially high but dropping)). What rating of fuse are you using? The relay is there to switch a higher current than the horn switch can cope with- therefore the supply which runs through its contacts must be suited for the load i.e. the TWO horns (probably about 10A). Your existing horn circuit (switch, fuse and cabling) runs the relay. The relay has a nice beefy feed from the battery via a (perhaps 10 or 15A) fuse to the horns. Some might be tempted to connect the supply that works the relay to the load contacts OF the relay (in other words where the horns connect). This WILL just kill the fuse. Cheers, Garry