SPDT Latching Relay Unlatching Query

MrAl

Joined Jun 17, 2014
7,811
Hi,

You have to have some power input or energy storage if you expect to energize a relay of any kind. If you dont have any normal power input, then you have to have some storage such as with a rechargeable battery or maybe super capacitor depending on leakage. You may or may not be in a situation where you can use a solar cell or two.

Alternately, if the innards of the relay are accessible there may be a mechanical way to do it too by pressing or pulling on the inner part of the relay mechanism.
 
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