is a piece of cake!!!!
They are simple... relays are made to switch a high power current with a low power current.
Lesson one
SPST (single pole single throw) relays
The most common and simplest type of aftermarket relay is a SPST relay and has 4 contacts.
2 are used to complete a "signal" circuit and the other two are used to recieve and deliver the high power current to whatever needs it.
This high current is delivered only when the signal circuit is activated (closed) *click*
You can switch either the + or the - of the "signal" circuit, giving you some wiring flexibility.
ALLWAYS USE A FUSE!! in the high power line coming into the relay...
They are simple... relays are made to switch a high power current with a low power current.
Lesson one
SPST (single pole single throw) relays
The most common and simplest type of aftermarket relay is a SPST relay and has 4 contacts.
2 are used to complete a "signal" circuit and the other two are used to recieve and deliver the high power current to whatever needs it.
This high current is delivered only when the signal circuit is activated (closed) *click*
You can switch either the + or the - of the "signal" circuit, giving you some wiring flexibility.
ALLWAYS USE A FUSE!! in the high power line coming into the relay...
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