Recommend me: (very) low profile Latching 12V switch (ideally with LED) SPST

[gregcope]

Hi,

Want to make a bulkhead mounted switch panel. Bulkhead mounted is the key term. I do not want to make a cutout. I would want to have four or so low profile 12V latching switches. Virtual bonus points if these can have an LED to show if on (closed) or not. I have been looking for switches I could just "stick" to something and have the wires out the side to be able to switch a thing.

Needs to be low profile so that I can mount it in say a thick bit of wood (e.g. two bits of plywood glued together) so that I can attach this to a bulkhead and only make the hole for the cables. A decent (IP65/67/68) rating would be a bonus.

Googling seems to have failed me, and the only really low profile switches (ie 15mm recess or so) are momentary; L22U Series Short Body 50mA 24vdc Anti Vandal Switch

This is to switch 12V LED strip lights, so low current (1A?) and 12V. Imagine an engine room light or similar.

Thoughts, ideas welcome!

 

[MontyMariner]

PCB Switch?
pcb switch types - Google Suche

 

[gregcope]

Thanks @MontyMariner will have a deeper look...

 

[andsarkit]

As you have found, all decent latching switches need depth to accommodate the mechanism. The only ones I know about are these below which are not really suitable for marine use. If I was going to the trouble of making a panel I would probably want reasonable quality switches that would last.
Could you find a suitable box about 25mm deep that would accommodate a slightly deeper switch? Most switches only have an IP rating from the front so waterproofing the rear in a box is often a good idea. enclosures


Or these
switch

 

[rogerthebodger]

The other way would be to use a non latching push button switching a latching relay

 

[gregcope]

The other way would be to use a non latching push button switching a latching relay

Yes thought about that earlier but was over come with KISS!

 

[[194224]]

The other way would be to use a non latching push button switching a latching relay

That would permit you to use something like a membrane keypad but yes, it adds complexity the OP may not wish to have.

 

[gregcope]

As you have found, all decent latching switches need depth to accommodate the mechanism. The only ones I know about are these below which are not really suitable for marine use. If I was going to the trouble of making a panel I would probably want reasonable quality switches that would last.
Could you find a suitable box about 25mm deep that would accommodate a slightly deeper switch? Most switches only have an IP rating from the front so waterproofing the rear in a box is often a good idea. enclosures

View attachment 159684
Or these
switch
View attachment 159686

I think I am going back to building a little box with these in;

Amazon.co.uk

 

[KompetentKrew]

An anti-vandal switch, eh? I bet the Goths wished they'd had those. Black ones.

Anyway, first hit on Farnell for "vandal switch", filtered by "latching" is this, of 160 results.

 

[gregcope]

An anti-vandal switch, eh? I bet the Goths wished they'd had those. Black ones.

Anyway, first hit on Farnell for "vandal switch", filtered by "latching" is this, of 160 results.

Those are nice. It not cheap. Will look through results.

 

[KompetentKrew]

They might be expensive because I saw your submission and only searched for anti-vandal ones. There may be other sections of Farnell's site with switches that allow you to filter by "low profile" and "latching". I also just found this - if you look at the data sheet it's available in red or green.

 

[gregcope]

I like that one.

Farnel and others at least have decent descriptions/datasheets. I got excited earlier on ebay and amazon on finding low profile “latching” switches only to find they are actually momentary ones. Grh.

 

[gregcope]

The other way would be to use a non latching push button switching a latching relay

Can you recommend any - ideally tiny, with four channels? To switch 1A 12V max (LED strip lights).

I have found some very, very low profile momentary switches that would need a relay.

 

[rogerthebodger]

Try RS components

35 for 'bistable latching relay' | RS

This circuit may a;so help

wiring diagram for switching a 12v light using a latching relay and a 4.5v pulse from a receiver of a remote signal

A selection from Amazon

Amazon.com : 12 volt latching relay

4 channel

https://www.amazon.com/NOYITO-Self-...bb8-8122-51d85a21fd99&pd_rd_i=B07BLRV92L&th=1

 

[alahol2]

Any Good?

 

[andsarkit]

The latching relays usually require a reverse polarity pulse to reset or have a second reset coil. This is difficult to arrange with a SPST push switch. You could add some electronics to do the switching but this will draw a small standing current. There are some modules that Roger has linked to above that would achieve this but it is getting rather complicated.
Latching relayYou can also do it with two relays.

 

[gregcope]

I prefer to buy a board like in @rogerthebodger last link. Not sure I can face making a board for this (yet).

Would this work;
https://www.amazon.com/NOYITO-Self-...bb8-8122-51d85a21fd99&pd_rd_i=B07BLRV92L&th=1

 

[Daverw]

Have you looked at 4 channel wireless switches, then mount the remote keypad only

 

[andsarkit]

I prefer to buy a board like in @rogerthebodger last link. Not sure I can face making a board for this (yet).

Would this work;
amazon

That should work in self-locking mode. There is a link to the manual at the bottom of the link.

It will draw a constant 22mA even when not in use which should be OK as long as you switch it off when you leave the boat.

 

[gregcope]

Thanks. Everything gets switched off.