Index sold mrs an oven hob and fan set

Oven has only 3 thick wires.

Whtas the best plug and any suppliers up North I am in rural C Rai but visit M Sai and C Mai often

You might want to check and see if that oven is 3-phase or not. 3 thick wires sounds suspect. If not then Amorn in Chiangmai should have what you need. Don't know if CR has a branch or not.

Three wires will be Phase, Neutral and Earth. If it were 3 phase i would expect it to have 4 wires.

Should use a 20 amp plug to wall and minimum 1.5mm copper wire to fuse board.

Check the labelling on the connectors, likely L, N & E, Live Neutral and Earth. They may be coloured Red or Brown (live), Blue or Black (neutral) and Green or Green/Yellow (earth), colour codes here http://www.crossy.co.uk/wiring/colour%20codes.html

The oven nominally will draw 10.5A or thereabouts so it could be plugged into a regular outlet.

BUT!

IMHO it's best to wire direct to its own 20A breaker, use a minimum of 2.5mm² cable for this purpose, 1.5mm², whilst rated at 15A is marginal in the high ambient temperatures here.

NOTE If your hob is electric it is going to need a rather bigger supply than 20A, check the rating plate before installing anything

Check the labelling on the connectors, likely L, N & E, Live Neutral and Earth. They may be coloured Red or Brown (live), Blue or Black (neutral) and green or green/yellow (earth), colour codes here http://www.crossy.co.uk/wiring/colour%20codes.html

The oven nominally will draw 10.5A or thereabouts so it could be plugged into a regular outlet.

BUT!

IMHO it's best to wire direct to its own 20A breaker, use a minimum of 2.5mm² cable for this purpose, 1.5mm², whilst rated at 15A is marginal in the high ambient temperatures here.

NOTE If your hob is electric it is going to need a MUCH bigger supply than 20A, check the rating plate before installing anything

Thanks for pointing out ambient temperature..... Not something I ever considered living so close to Antarctica... lol

Cheers Crossy

As the hob is also 4 electric rings we have done a seperate 30 amp circuit to the breaker on the board.

I hope to find a suitable plug,as nearly all high rated Thai appliances inc hob come with a sealed plug unit

Thank everyone for your inputs

A supplier in C Rai would be helpful.

As the hob is also 4 electric rings we have done a seperate 30 amp circuit to the breaker on the board.

I hope to find a suitable plug,as nearly all high rated Thai appliances inc hob come with a sealed plug unit

Thank everyone for your inputs

A supplier in C Rai would be helpful.

If your units have plugs, please post photos so we can determine the types and availability of suitable outlets in Thailand.

But I still recommend direct wiring rather than plug/socket connections, your oven can share the supply you've got for the hob if it's near enough.

I agree with Crossy. Try to avoid a plug & socket in this situation. I would install a 20 amp National Breaker under the hob someplace & wire to that. Just twist the grounds together & use wire nut or equiv.

Three wires will be Phase, Neutral and Earth. If it were 3 phase i would expect it to have 4 wires.

Should use a 20 amp plug to wall and minimum 1.5mm copper wire to fuse board.

Yes you right 3 Phase has 4 wires I am not an electrician but I never seen 3 phase with just 3 wires. All my machines back in OZ had 3 phase and they had a minimum of 4 to 5 wires.

As I mentioned before I am not an expert on electrical things but I always thought 3 phase needs to have a current of 440 volts not just 220 volts.

Yes you right 3 Phase has 4 wires I am not an electrician but I never seen 3 phase with just 3 wires. All my machines back in OZ had 3 phase and they had a minimum of 4 to 5 wires.

That is correct and I misspoke myself in my previous post. Normally it would be RSTN for commercial/domestic appliances. Some industrial applications may use only RST. I had just finished a 3 phase 200 amp rectifier design which only requires RST and neutral is not needed. Late night.

Also 220/380 volts is three phase in Thailand.

3 Phase will have 3 live coming into your premises PLUS one neutral & hopefully one ground.

For a total of 5.

I'll bet money his hob is single phase.

Brown is live Blue is Neutral & Green is ground.

If you are right that the total is 2.3 kW.

Multiply by 1000 = 2300 watt divide by 230 volt (split the difference) = 10 amps. Not a super high load. I would want 4 mm wires running back to my load center. I would not use a plug at all. Hard wire it.

You did add an oven in the body of your post.

Find out the total combined maximum wattage & wire accordingly. Hob + Oven + Exhaust Fan

Residential 3 phase from the meter to the consumer panel is 4 wire----3 load and one neutral