Rpschultz13
Active member
What is the difference between using a latching vs non-latching relay?
Latching vs non-latching Relay
- Thread starter Rpschultz13
- Start date
Rpschultz13
Active member
Ah so non latching you have to hold it down. Got it
Paradox916
Well-known member
Not exactly…. The relay will continuously draw power to maintain state until the switch is pressed againAh so non latching you have to hold it down. Got it
Rpschultz13
Active member
Oh ok. So they both function the same. What’s the advantage of one over the other?
When the device under latch loses power, sometimes you don't want it to return to its previous state when power is restored.
Also, non-latching consumes more power overall.
Rpschultz13
Active member
Does the PPCB latching relay always power up the same state?
spi
Well-known member
you don't have to--the circuit does (hence the current draw)Ah so non latching you have to hold it down. Got it
JTEX
Well-known member
I think a major reason to pick a latching relay over non-latching is to save power when power comes at a cost (battery). If power draw is not a concern, non-latching relays are probably easier to deal with.
Rpschultz13
Active member
Rough cost
Latching relay is $4.50
Non latching $1.50
Latching relay is $4.50
Non latching $1.50
