Button to press switch in enclosure

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dpbarry

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Hi Folks.

Apologies for asking what may appear to be a stupid question. Not sure if it’s covid brain fog or whatever but ive a circuit board I want to mount inside an enclosure. It has a small on/off switch but I want to control it from a button on the outside of the enclosure - a kind of spring loaded extension that when i press on it, it will touch the switch and switch it either on or off.

For the life of me, I don’t know what to call it on Google/Bing to search for such an ‘extension’

This is the board I have. Switch is on bottom right. I’m using it to link to a computer PSU to give me the 3.3, 5 and 12 volts at banana sockets on the enclosure

GeeekPi 24/20-pin ATX DC Power Supply Breakout Board Module Adapter, Screw Terminal Block Breakout Module for Computer PC : Amazon.co.uk: Computers & Accessories

Buy
www.amazon.co.uk

any assistance greatly appreciated

Declan
 
Spring loaded pin ....?

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Cabinet pins -





Regards, Dana.
 
Pommie said:
Do you have a schematic of that board?

Mike.
Click to expand...
Hi Mike

unfortunately not. I suppose I could meter it out and see which pins on the pub switch actually switch the module on and modify it with a fly lead switch.
 
Last edited:
The typical "official" names are such as an "Extended reset operator", but the industrial parts tend to have ludicrous prices!

G SERIES - ALUMINUM SHORT RESET OPERATOR WITH 6 INCH FIBER EXTENSION -"RESET"/BLANK NAMEPLATE | Province Electric Supply

Killark GO SERIES Operators are a component use in conjunction with a Hazardous Location enclosure to provide control solutions in for; START/STOP Motor Functions, LED Pilot Light Indications and more. Utilized in Class 1 Division 1 & 2, Class 1 Zone 1 & 2 areas for indoor and outdoor use. UL...
www.province-electric.com

SIEMENS 51AAS / 51AAS (BRAND NEW) | eBay

Find many great new & used options and get the best deals for SIEMENS 51AAS / 51AAS (BRAND NEW) at the best online prices at eBay! Free shipping for many products!
www.ebay.com

I'd look for some form of modular pushbutton (that has interchangeable contact assemblies) and add your own plastic rod extension to it, something like one of these:

GREEN START PUSH BUTTON 1 N/O CONTACT 22MM PANEL MOUNTING NEW & BOXED | eBay

GREEN PANEL MOUNTING PUSH BUTTON.
www.ebay.co.uk

Unscrew the contact block and you have a smart looking button you can attach an extension to.
 

Or, why not just wire one of the new switch contacts in parallel with the contacts of the switch on the breakout board?
That would save all the mechanical fiddling to make the push rod line up between to new PB and the switch.

JimB
 
JimB said:
Or, why not just wire one of the new switch contacts in parallel with the contacts of the switch on the breakout board?
That would save all the mechanical fiddling to make the push rod line up between to new PB and the switch.

JimB
Click to expand...
Actually, it’s something I may look at. Just looking to see what type of latching switch it is. It has 6 pads on it - surface mounted to board.

Declan
 
Are you sure it's a latching switch? Many devices use a push button and the latching is done by other parts of the circuit. Metering it without power will tell you if it's latching or not.

Mike.
 
Pommie said:
Are you sure it's a latching switch? Many devices use a push button and the latching is done by other parts of the circuit. Metering it without power will tell you if it's latching or not.

Mike.
Click to expand...
While it might not be a latching switch, it looks like a very common type of one - you see them a lot, and do have 6 pads.
 
Pommie said:
Are you sure it's a latching switch?
Click to expand...
The amazon link photos show a legend next to the switch, with it depressed for on and released for off.

However, the board has the PSON connection brought our to a screw terminal already - so an external on/off switch could be wired between that and 0V/GND, & just ignore the on board one, leaving that off??
 
Sometimes the easiest options are the ones staring you in the face! Should have read the silkscreen legend properly. Tested it out and it works. Obviously needs to be a latching switch.

cheers folks
 
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