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Do motorcycle horns need Relays?
The short answer to your question “Do I need to use a relay” is yes, assuming you want a loud horn that doesn’t melt your stock wiring. The horns you mention draw much more current than a stock horn. Take the hot lead on the OEM horn coming from the OEM horn button and use that power to fire the relay.
How much power does a motorcycle horn draw?
The offered bike horn is known to consume around 12 V of power to function and to offer a 6 amp (of maximum frequency) low tone along with with a 400Hz-500Hz (of maximum frequency) high tone.
How many amps is a 12V car horn?
Can a 12v 1.3AH battery adequately supply a 12V Car horn? (Though car horns draw 5-6 Amps.) – Quora. If the battery can supply 5–6 Amps, sure it’ll blow just fine.
Is relay required for horn?
He said since Roots Megasonic is 12V & 4 Amps, relay is not needed, He’s used the same OE relay for roots also, OE horn relay is working now for both sets of horns.
How many amps does a Harley horn draw?
Harleys have been known to need around 28ah for the really big engines. Battery amperages are measure two ways.
What is a horn relay?
The horn relay switches a large current to the horns at a signal from the low-current horn button in the steering wheel. It’s a simple, inexpensive single-pole single-throw (SPST) relay, packaged in a small metal or plastic box with five spade-lug connectors.
How many amps does a 6 volt horn draw?
The horn should draw 5 amps when used on 6V system. You essentially need to throw away 6V when using it on 12V but you still need it to draw about 5 amps so it will take 60 watts from your 12V system.
How do I know what size relay I need?
An easy way to determine the limit of a relay is to multiply the rated Volts times the rated Amps. This will give you the total watts a relay can switch. Every relay will have two ratings: AC and DC. You should determine the AC watts and the DC watts, and never exceed these ratings.
What is a horn relay fuse?
The horn relay is the electronic component that is a part of the vehicle’s horn circuit. It serves as the relay that controls power to the vehicle’s horn. Most relays are located in the fuse box underneath the hood. When the relay fails it can leave the vehicle without a functioning horn.