Push to break switch

[fattony]

I need to put together a push to break switch for outside, I heard mk masterseal do one but not seen any pics, if you have a link please post. I was told this was quite a big ugly box though, and cost £16 plus Vat!

I was considering buying a something like this and mounting it inside a IP65 rated box, its only 25p!

http://www.maplin.co.uk/Module.aspx?ModuleNo=2494&criteria=Push to break switch&doy=3m6


What do you think

 

[the_jinj]

What's it going to be used for?
Will you get a box that has a lid so you open to reach switch? How will you maintain the IPX rating if you need to drill it to fit the switch?

 

[fattony]

its going to be switching a 60w light, im really stuck on this one, the switch will be mounted in the lid as its going to be operated by a gate. As the gate opens the light comes on and when the gate shuts the light goes out.

The gates are electrically operated, the guy basically wants the lights to be on all the time the gate is open, i've done it temp so the lights operate as the gate is opening / closing but he wants blood!

 

[fattony]

Ok think i may have found it

http://rswww.com/cgi-bin/bv/rswww/s...hmdfjhmdcefeceefdffhdfgg.0&cacheID=uknetscape

Its not that clear but if someones used them before they may be able to answer,

I assume when sensor and magnet are together its Normally open and when the magnet moves the circuit goes closed??

Being brass could this be used outside??

Cheers for your help

 

[RF Lighting]

It dosn't actually specify an IP rating anywhere but as long as the wires are sealed into the body of the reed switch then I don't see any reason why it cant be used externally.

 

[fattony]

http://rswww.com/cgi-bin/bv/rswww/s...hmdfjhmdcefeceefdffhdfgg.0&cacheID=uknetscape

Rf can you have a look at this please, its IP67 ratedand says normally open, does that mean when the contact and magnet are together it will be normally open and when seperated it will be normally closed?

Thats how i read it anyway?

Cheers mate this might just save my bacon!

 

[Spark123]

The bit I don't like is the 10VA switching, the product datasheet also gives a 200v contact rating.

Going a bit more industrial telemechanique roller switch

 

[fattony]

hmm the roller switches are not IP rated though Sparky, the contact has a 230v operating voltage.

 

[RF Lighting]

You could use the IP67 rated reed switch with a relay in an enclosure. This will then allow you to switch as much current as you like. (with an apropriatly rated relay) If you use a relay then it will not matter whether you buy a NO or an NC reed switch. I an not sure what the 'normal' state of the reed switch is but I would hazard a guess that the reed and magnet together would produce a NO output.

 

[fattony]

Dont think i need to mate, its very poorly worded on the website, i think it switches 0.5acA at 230VAC, I only want to switch a 60 light bulb which is something like 0.2acA.

 

[RF Lighting]

As I interprit it the switch can a switch maximum of 10VA which is not enough for a 60W lamp. I am not sure what the 0.5acA refers to but I don't think it is half an amp when used on AC. I hope someone else can clear this up.

BTW fattony your RS links have gone dead.

 

[Steve]

why is this page so wide?

 

[RF Lighting]

I think its those rediculously long RS web adresses

 

[fattony]

hey who took the links down!

Here it is again http://rswww.com/cgi-bin/bv/rswww/s...hmflijjecefeceefdffhdfgj.0&cacheID=uknetscape

Can you explain the 10VA please RF, I thought the 0.5 was AC Amp?

 

[fattony]

sorry for making the page so wide