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Outdoor & Recreation
Campers, Vans & 4WD's
Relay help please
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<blockquote data-quote="condor22" data-source="post: 124171" data-attributes="member: 1932"><p>So S1 activates the relay. I'm assuming that both terms 87 are duel output which when S1 is on, turns on both lights.</p><p></p><p>When S1 is off, the lights are direct connected to the battery via S2 and S3 and bypass the relay altogether.</p><p></p><p>In which case why use the relay?</p><p></p><p>and </p><p></p><p>If the relay is not energised what do diodes do, to add any value? If S1, 2 and 3 were all on at the same time everything still works anyway.</p><p></p><p>I refer back to my initial diagram - S1 is the master switch, it allows you to power both lights from the cab, or provide power to S2 and S3 to independently operate from the rear near each light, or isolate everything, saving the expense of a relay and diodes, which for 4.5A are an overkill. Heck a cigarette lighter hits it's wiring with more than double that. Just add fuses.</p></blockquote><p></p>
[QUOTE="condor22, post: 124171, member: 1932"] So S1 activates the relay. I'm assuming that both terms 87 are duel output which when S1 is on, turns on both lights. When S1 is off, the lights are direct connected to the battery via S2 and S3 and bypass the relay altogether. In which case why use the relay? and If the relay is not energised what do diodes do, to add any value? If S1, 2 and 3 were all on at the same time everything still works anyway. I refer back to my initial diagram - S1 is the master switch, it allows you to power both lights from the cab, or provide power to S2 and S3 to independently operate from the rear near each light, or isolate everything, saving the expense of a relay and diodes, which for 4.5A are an overkill. Heck a cigarette lighter hits it's wiring with more than double that. Just add fuses. [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Relay help please
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