coffee machine on a timer

[moe]

hi.. just wondering what would be the best way to do this... the coffee machine is on a 240 supply with a radial circuit going to it on a 32 amp breaker, with a double pole switch at the end.. the customer has asked if i can put this on a timer to come on half an hour before they get into the shop??...
thanks

 

[beaver74]

timmer controled contactor is the any real way to do it if it is such a heavy load,but you should check Zs to see if you can put it on a C type breaker in case of it pulls alot first thing

 

[mikeymoo]

Whats the electrical requirements? Is that radial circuit suppling only the coffee machine? Ive seen a large commercial coffee machine that was 2KW. In such case an immersion heater timer would be fine. For larger loads you could use timer to switch a Relay contactor. or timed contactor. If your not sure of supply then clamp it.

 

[mogga]

Contactor and timer IMO an NC contctror may be best bet

 

[moe]

thanks... not sure of the load just had a quick look at it on the way home, am going back tomorrow... was thinking of a relay contactor and a switch, not 100% on how to wire it in, any help?

 

[mikeymoo]

If its below 3kw the Immersion timer is your best bet. From double pole fused spur to your Timer then your coffee machine.

http://www.toolstation.com/shop/Hea...al+Purpose+Timer+24hr7days/d230/sd2732/p21022

 

[Deleted member 26818]

What's the CSA of the wiring?
What's wrong with one of those plug in security type timers?

 

[moe]

not to sure on the csa yet, just had a quick look and now it is powered off a phase of a 3 phase system on a 32 amp radial so pretty sure it's pulling quite a bit... the installation is also new so pretty sure the correct mcb was asigned.. sorry for pretty crap info, should have taken a better look.. just needed a bit of help on this one.. anyone with any wiring the contacto and the switch info would be apreciated..
thanks

 

[mikeymoo]

I would be shocked if that Radial circuit is just for the coffee machine on 32 breaker. must be a nuclear reactor!

 

[High Tower]

It probably is about 30 ish amps they pull a hell of a lot of juice especially if its the bulk brew kind with 2 urns built in,

I gotta go with time clock and contactor. only question would be, why does a coffee machine need to co on a timer??

 

[mikeymoo]

Are you talking about a dedicated coffee machine or a hot drink Urn??

 

[IQ Electrical]

It probably is about 30 ish amps they pull a hell of a lot of juice especially if its the bulk brew kind with 2 urns built in,

I gotta go with time clock and contactor. only question would be, why does a coffee machine need to co on a timer??

The load can be quite high on these machines, separate boilers for water and steam, elements for the cup-warmer (maybe the reason for the timer).

 

[High Tower]

The load can be quite high on these machines, separate boilers for water and steam, elements for the cup-warmer (maybe the reason for the timer).

A lot of commercial coffee machines are 3ph so the do pull a bit!

I understand why they want it on a timer but most machines require turning on( timer) and then various buttins pressing etc etc before they warm up so i dont see how the timer can help

 

[mikeymoo]

Most timers are 13amp limit. So if the coffee machine is nuclear powered then you will need it to switch the contactor. Also having a separate timer makes it more user friendly for the customer. Can easy change switch times themselves.

 

[moe]

haha.. no it would only have to be 5kw to be in the 32 amp cat and lots of comercial coffee machines are..