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Tapo S515D - does it need both switches in the circuit

Tapo S515D - does it need both switches in the circuit

Tapo S515D - does it need both switches in the circuit
Tapo S515D - does it need both switches in the circuit
2025-07-17 13:22:39 - last edited 2025-07-18 21:35:30
Tags: #Wiring & Installation #MixMatch
Model: S505D  
Hardware Version: V1
Firmware Version: 1.1

Hello,

I'm researching these 3-way dimmers and am curious if you have to replace both switches in a 3-way circuit.  I see some reference to master / slave configs which seems that you need both. My question is can you mix one S515/S515D with a normal 3-way and get the programming functions?

Thank you,

RC

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3 Reply
Re:Tapo S515D - does it need both switches in the circuit
2025-07-22 09:29:27

  @RogerEC 

 

Tapo S515D KIT, the dimmer 3-way switch, cannot be used separately or work with a traditional 3-way switch, not even the S515.

 

On the other hand, the Tapo S515, it can work in a 3-way or 4-way connection with the traditional switches, but two S515 cannot be used together to build a 3-way connection.

 

Check the following for detailed installation guide.

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Re:Tapo S515D - does it need both switches in the circuit
2025-08-18 04:56:30 - last edited 2025-08-18 04:57:21

  @Wayne-TP 

Since the S515 is a switch and the S515D is a dimmer it's important to clarify they're not interchangeable.

 

I wanted a Matter-certified Energy-Monitoring dimmer. The S515D fit the need - except for the satellite requirement, which is frakking idiotic.

 

(I'm seriously thinking of burying the satellite in a box with a plate, but this is such a waste of time and effort.)

 

How can one get an energy monitoring Matter dimmer from your product line?

Or, if one can't today, 

WHEN will it be available?

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Re:Tapo S515D - does it need both switches in the circuit
a week ago

  @Wayne-TP @Riley_S 

 

Tapo S515 on three way light

 

I just installed an S515 on a 3 way at home. Left the dumb switch on the LOAD end, installed the S515 on the LINE end.  

 

If I power off the lights from the dumb/load end, I cannot power them back on from the smart/line end….

Any ideas?

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