12 V relays
New User
Joined: Jan 2008
Posts: 0
Likes: 24
FTE does have an Electrical forum.
Specifically ....What kind of 12v relays ?
They are normally used when a large amount of current (amperage) is required to operate something when you have a smaller wire inthe switch circuitry.
Ie: The starter solenoid to crank the starter
Other uses:
Headlights
Air Conditioning systems
Wiper systems
anything that requires that larger amount of current.
Specifically ....What kind of 12v relays ?
They are normally used when a large amount of current (amperage) is required to operate something when you have a smaller wire inthe switch circuitry.
Ie: The starter solenoid to crank the starter
Other uses:
Headlights
Air Conditioning systems
Wiper systems
anything that requires that larger amount of current.
Moderator
Joined: Jan 2001
Posts: 56,971
Likes: 2,731
From: Virginia
Besides using relays to switch large currents, you can also use them for simple logic work.
For example, you can use a switch to turn the relay on, and in turn the relay turns something off.
You can also use one switch to turn multiple relays on. So one switch can do more than one job. For example, you can use a 12 volt switch to turn on two relays. One relay switches 120 v, and the other relay can switch a 12 volt signal, all with one 12 volt switch.
For example, you can use a switch to turn the relay on, and in turn the relay turns something off.
You can also use one switch to turn multiple relays on. So one switch can do more than one job. For example, you can use a 12 volt switch to turn on two relays. One relay switches 120 v, and the other relay can switch a 12 volt signal, all with one 12 volt switch.
