The type b layout is arguably easier to work with as the connected terminals are in line making the wiring easier to visualise.
Dual horn 5 pin relay wiring diagram.
Attaching the wiring diagram of the relay.
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These layouts are shown on the two 5 pin relays below pin 87a not present on 4 pin relays.
Connect a solderless ring terminal to one wire from the inline fuse holder and connect it to the positive terminal on the vehicle battery.
When the coil is activated power will be switched from the normally closed pin to the normally open pin.
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5 pin relay 5 pin relays provide 2 pins 85 86 to control the coil and 3 pins 30 87 87a which switch power between two circuits.
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Wiring a 3 pin relay to power a dual horn from a stock switch single horn ask question asked 2 years 2 months ago.
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Dual horn installation using horn relay horn relay wiring this is the simplest way to connect two heavy in horns in a bike or a scooter using horn relay.
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I am trying to implement a dual horn setup for my bike.
They have both normally open and normally closed connection pins.
You will notice that on the type b layout pins 86 and 30 are swapped over compared with the type a layout.
Using a solderless butt connector and ten gauge wire extend the other side of the fuse holder to the relay and connect to terminal 30 using the appropriate type of solderless connector which will usually be a female spade connector.