Hello, I got an oven that comes without plug. Manual says direct wiring required.

How do I connect it to the grid?

1) can I attach a 15amp round pin plug and install a 15amp 3pin socket wired to a 20a switch? Breaker rating is 240v 20amp, oven power is 3650w. By calculation the amp draw is 15.2amp already, can I do it this way?

Or

2) direct connect the oven cable to 20a switch via a junction box? But I don't know how to look for the junction box

Please help, I scare the power draw too high and cable or plug melt.

Well, looks like you need a proper wireman for the job.

Direct means straight to DB. No plug or socket.

Since the oven is 15.2A, cannot use socket or plug lor. Confirm sure melt.

The 20A switch is ok but is the wiring at least 4mm? Standard power socket is 2.5mm. Lighting is 1.5mm.

Same. I just wired my 3.6kwh oven.

Initially wanna get 15A plug. Read it’s not safe.

The I DIY get a 2 pole switch. Wired the oven to the switch then to the mains.

for 3650W, i'll go for a 20A circuit, with minimum 4mm cable size. you can use a 20A isolator

What is DB?
I still need a switch to toggle power isnt it?
I suppose its 4mm, did new wiring job during renovation with emphasis of that socket for oven.

You mean the switch with the light indicator usually use for water heater and aircond?

Like this?


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Yes the switch with red led. But get a 2 pole one. So when off, both contacts are disconnected. I just use 2.5mm cable

I do not know what is the switch in circuit breaker called, that is 20A.

Rather than using a 20A switch (those used for water heater, aircond) you suggest me to wire the oven to this isolator and then to circuit breaker?


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3g2.5mm2 cable, the black one or grey? That cable is huge.

The original cable with the oven is only 3g1.5mm2.
If that is the case I need to get a replacement cable of 2m long to rewire oven to the switch.

Or can I do this?

DB > 2pole 20a > 1pole 20a > oven

If like this I just replace the top switch to 2pole and move it to bottom, and connect the current cable to bottom switch.


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Are you sure about this? 1.5 mm² wire is only rated for about 14 A at the absolute maximum.

Also, if you don't want the big isolator, there are normal 2 pole switches with indicator (the kind you use for a/cond) but rated for 40 A. Just see the product list of the switch gear brand that you are using now.

ya this or there's another type, round one with a red rotating knob.

or those 45A oven/cooker switch also can, will look nicer but more expensive

edit: you can search it in shopee, can buy from there


This post has been edited by lowyat101: Dec 30 2022, 12:41 PM

tumpang this thread to ask sifu, need your advise on the following
on the other side of my kitchen has no power point, I am thinking not to hack the wall, can i do extension cord from the existing 20A heater point thru plaster ceiling (i dont install heater) to the other side of the kitchen.. mainly will use for oven (~1600W), steam cooker (~1200w) and some small apliaces.. hardly will turn them all on at the same time la..
so sifu, can work or not? any thing i need to aware

Yes, doable exactly as you say. Nothing extra to be aware about if you follow all the wiring rules.

Water heater need its own dedicated circuit. You can repurpose a heater point to support 13A SSOs.

This post has been edited by ceo684: Feb 24 2023, 01:48 PM