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Old 20.04.2020, 15:32
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Installing an oven

Due to the covid lockdown, the kitchen installer cancelled so I am installing the kitchen myself now. I had a techncial question regarding connection of the oven. In the UK, it is necessary to be able to turn the oven off or unplug it. Normally, this is done by wiring in an accessible switch.

Is there a similar requirement in Switzerland, or can I just hardwire in the oven?

Last edited by Phil_MCR; 20.04.2020 at 22:44.
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Old 20.04.2020, 15:39
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Re: Installing an oven

Default is that you just plug it in a wall socket. That the wall-socket only can be reached by moving the oven forward is fine.

Don't know what you refer to as "hard-wiring" but bringing the cables that run through the wall into your oven is prohibited.
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Old 20.04.2020, 15:42
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Re: Installing an oven

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Due to the covid lockdown, the kitchen installer cancelled so I am installing the kitchen myself now. I had a techncial question regarding connection of the oven. In the UK, it is necessary to be able to turn the oven off or unplug it. Normally, this is done by wiring in a switch.

Is there a similar requirement in Switzerland, or can I just hardwire in the oven?
My only Swiss oven was hard wired, just as they are in France. Both French & Swiss have a separate breaker or possibly 3 breakers if 3 phase which is likely in CH. My new French apartment has 3 Ovens & an induction hob. In total 3 trips on 2 phases, I have an 18KVA supply so more than most people.
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Old 20.04.2020, 15:44
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Re: Installing an oven

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Default is that you just plug it in a wall socket. That the wall-socket only can be reached by moving the oven forward is fine.

Don't know what you refer to as "hard-wiring" but bringing the cables that run through the wall into your oven is prohibited.
In the UK they would be on a Spur, in CH they are hard connected at the wall or were on the only apartment where I had a new oven in ZH
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Old 20.04.2020, 17:45
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Re: Installing an oven

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Due to the covid lockdown, the kitchen installer cancelled so I am installing the kitchen myself now. I had a techncial question regarding connection of the oven. In the UK, it is necessary to be able to turn the oven off or unplug it. Normally, this is done by wiring in a switch.

Is there a similar requirement in Switzerland, or can I just hardwire in the oven?
There's no requirement to be able to reach the socket to disconnect it, but it should be on a dedicated circuit, so you'd be able to isolate from the main panel.
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Old 20.04.2020, 18:43
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Re: Installing an oven

It depends, have you checked what the voltage is in the kitchen and what the oven is, eg 230V or 400V?

Typically there's a wall plug but it's not always the standard type, you could be on a three phase circuit and so the plug doesn't have the usual small three round holes but has five square pins. I've never seen a UK style wall control in CH, having one might be no bad thing but with a fusebox already you can see why it's not so much use but it's possible in an emergency you need to cut the oven (and/or hob) before the fuse trips.
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Old 20.04.2020, 19:16
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Re: Installing an oven

I've recently finished a full kitchen remodel. We now have 2 wall ovens, plus a separate hob. Unlike the UK, with the "hardwiring" and a separate over-ride switch within the kitchen...all units were fitted with plugs and put into standard electrical sockets (just as you would for a microwave or kettle). However, they all have their own dedicated electrical sockets. Interestingly, they do share fuses with other appliances, which I must say I found puzzling....we also effectively have 3 phase power in the kitchen. All done by a qualified Swiss electrician.
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Old 20.04.2020, 22:54
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Re: Installing an oven

Quote:
Default is that you just plug it in a wall socket. That the wall-socket only can be reached by moving the oven forward is fine.

Don't know what you refer to as "hard-wiring" but bringing the cables that run through the wall into your oven is prohibited.
The previous electrician basically left 2 bundles of unterminated wires: one for the oven and one for the induction hob. Each bundle has 5 wires (3 phases, neutral and earth). There's no wall socket.

The oven also has no plug and has 3 wires. The diagram seems to indicate to connect one wire to phase 1, another to phase 2 and the third is earth. Oven indicates 400V.

If no switch is required, I was planning to make a direct connection between oven cabling and one bundle housed in a 'junction box'. From what you wrote above, I'm not sure whether this is permitted.

Interestingly, the old hob was connected the following way: the wires were directly connected using a terminal block and the block was wrapped in electrical tape! the whole thing was left loose floating about behind the kitchen cabinets.
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Last edited by Phil_MCR; 21.04.2020 at 11:14.
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Old 21.04.2020, 11:01
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Re: Installing an oven

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Interestingly, the old hob was connected this way: the wires were directly connected using a junction terminal block and the block was wrapped in electrical tape! the whole thing was left loose floating about behind the kitchen cabinets.
Junction box is normal, floating probably best avoided
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Old 21.04.2020, 11:17
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Re: Installing an oven

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Interestingly, the old hob was connected this way: the wires were directly connected using a junction terminal block and the block was wrapped in electrical tape! the whole thing was left loose floating about behind the kitchen cabinets.
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Junction box is normal, floating probably best avoided
Personally I still prefer to put in a proper socket and a plug on the appliance, but maybe that's just me. I hate it when I find 'cowboy' work like this, making you guess/test as to what all the wires are actually for, especially when they've done something like using the earth as neutral, so there's only four wires in total (although TBF that's far from the worst example we've come across in recent renovations).
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Old 21.04.2020, 12:01
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Re: Installing an oven

I found an electrical socket behind a panel the other day. It was floating too.

(Actually it wasn't actually floating as it was hanging from a piece of string!)
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Old 22.04.2020, 08:21
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Re: Installing an oven

Quote:
Default is that you just plug it in a wall socket. That the wall-socket only can be reached by moving the oven forward is fine.

Don't know what you refer to as "hard-wiring" but bringing the cables that run through the wall into your oven is prohibited.
This is simply untrue.
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