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electrical:relay [2017/07/08 23:35]
frater_secessus 		electrical:relay [2017/07/08 23:39]
frater_secessus [Relays]
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 ====== Relays ====== ====== Relays ======
  
-Electrical relays are devices used to **turn relatively heavy loads on/off**.  They are triggered by small amounts of power from an external source (usually a switch operated by the user) but can pass larger amounts of power to the load.+Electrical relays are devices used to **turn relatively heavy loads on/off**.  They are //triggered by small amounts of power// from an external source (usually a switch operated by the user) but //can pass larger amounts of power// to the load.  This reduces the cost and physical requirements of the switch and can help automate some processes.
  
 A typical setup looks like this:  switch (and house power) --> relay --> load A typical setup looks like this:  switch (and house power) --> relay --> load
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 The most common relay campers are exposed to is the solenoid for [[electrical:12v:alternator|charging house batteries from the coach's alternator]].  When the vehicle is turned on power activates the solenoid and connects the house and vehicle electrical systems. The most common relay campers are exposed to is the solenoid for [[electrical:12v:alternator|charging house batteries from the coach's alternator]].  When the vehicle is turned on power activates the solenoid and connects the house and vehicle electrical systems.
  
-Relays are also useful for powering loads from [[electrical:12v:lvd|LVD]] or [[electrical:solar:charge_controller|Charge Controller]] LOAD outputs.+Relays are also useful for powering loads from [[electrical:12v:lvd|LVD]] or [[electrical:solar:charge_controller|Charge Controller]] LOAD outputs.  This allows powering larger loads than the controller is rated for. 
  
 ===== normally open vs normally closed ===== ===== normally open vs normally closed =====
electrical/relay.txt ยท Last modified: 2020/10/11 19:48 (external edit)

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