Meross MSS810 to control a bathroom fan and light

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Roach
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Meross MSS810 to control a bathroom fan and light

Post by Roach »

Has anyone experience with the Meross MSS810 Smart Wi-Fi In-Wall SwitchSmart Wi-Fi In-Wall Switch?
Unfortunately their support is less than adequate.

My current bathroom extractor fan and light runs off of a pull switch. The extractor fan is a Manrose timer fan and takes a switched live, permanent live and neutral.
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077546B.pdf
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The light sits inside the extraction duct and takes a live and neutral via the provided transformer (its a standard wicks extractor and I replaced the fan with the Manrose).


Current wiring is as follows:
MSS810-Page-1.drawio.png
MSS810-Page-1.drawio.png (21.6 KiB) Viewed 461 times


I've connected the MSS810 as per the manual with the fan permanent live still connected to COM on the pull switch and it works as expected, both the pull switch and the MSS810 turning both light and fan on and off with the fan timer also working as expected.
1657011189549_f08a1180.jpg
1657011189549_f08a1180.jpg (118.72 KiB) Viewed 461 times
MSS810-Page-1-1.drawio.png
MSS810-Page-1-1.drawio.png (29.93 KiB) Viewed 461 times


My questions/concerns:
1 - Is there any issue with running both the fan and light off the MSS810 and a permanent live off pull switch COM to the fan.
The product website has the following FAQ:

Can I control multiple lights with this switch?
As long as the total power is below 400W, you can control multiple lights.


The wattage of both light and fan is less than 100W.


2 - I would also like to reduce the number of cables coming through the ceiling. Can I use wire connector blocks in the loft to feed just the pull switch COM and L1 wires down to the switch as per the below diagram:
MSS810-Page-2.drawio.png
MSS810-Page-2.drawio.png (54.12 KiB) Viewed 461 times

Any help would be greatly appreciated.

Thank You.
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Someone-Else
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Meross MSS810 to control a bathroom fan and light

Post by Someone-Else »

Roach wrote: Sat Apr 20, 2024 7:26 am 1 - Is there any issue with running both the fan and light off the MSS810 and a permanent live off pull switch COM to the fan.
Try it and see. (I have never used that switch)

Roach wrote: Sat Apr 20, 2024 7:26 am 2 - I would also like to reduce the number of cables coming through the ceiling. Can I use wire connector blocks in the loft to feed just the pull switch COM and L1 wires down to the switch as
Use wago connectors click me and put them in a wago box click me to comply with regs
Above are my opinions Below is my signature.

Would you hit a nail with a shoe because you don't have a hammer? of course not, then why work on anything electrical without a means of testing Click Here to buy a "tester" just because it works, does NOT mean it is safe.

:mrgreen: If gloom had a voice, it would be me.

:idea1: Click Here for a video how to add/change pictures


Inept people use the QUOTE BUTTON instead of the QUICK REPLY section :-)
Roach
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Meross MSS810 to control a bathroom fan and light

Post by Roach »

Many thanks for your reply and the links to the right connectors.

Much appreciated
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