Linear Actuators have their own internal Limit Switches, so no need to worry about that. Set Morning/Night timer for only the time needed for door to Open/Close. No power is used when the Timers are off.

Diagram of different model timer. The only difference in wiring, is the terminals at the bottom.
Diagram:
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Photo:
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These two videos show the timers hooked up and working. They have limit switches and used with separate motor setup, however the limit switches can be removed and wire can be connected directly to the timers, in order to use a linear actuator.
"The simplest way to wire a chicken coop door with External Limit Switches (Redone) 2"
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"The simplest way to wire a chicken coop door with External Limit Switches (Redone) 3"
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Timers:
I purchased this timer 3 years ago and it is still working.

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The same type of timer just a bit cheaper.

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Notice/Warning: This one is the same except the common (where motor wires go) and the NO(Normally Close)(where the Negative wires go) are switched.
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I recently ordered these from China (Same stuff) directly. Way lower cost.

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Purchased Linear Actuator.

Aliexpress
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Amazon
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Best 2 Channel Timer
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These terminal blocs and/or wago snap connectors make it easier to wire.
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Disclaimer: Some of the links are affiliate links. (tho I have never had enough qualifying purchase to pay out LOL).

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