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Electrical

Fuse switch vs isolator switch

Anonymous user 09/03/2024 - 3.04 PM

My oven has a switch above it, i think this is called an isolator switch, but my dishwasher and washing machine have a fused switch. My question is why wouldn't you put a fused switch above the oven also? wouldn't this make accessing and replacing the fuse easier?

Are you a tradesperson and able to answer this question?

8 Answers

DEACON ELECTRICAL SERVICES

Rating: 5 out of 5
Grimsby
Is it a big isolator switch for the oven? You could use double pole switches for w/m & dish washer as if they go to a socket outlet they are fused in the plug top, and are used as functional as well as emergency switching of the appliance. also the oven if it’s under 20 amps and on its own circuit can have a DP switch. The larger cooker switches are rated at 45 amps and do not have a ‘fuse’ in-line, but require a switch for the same reasons mentioned above.
Answered14 September 2019
1

Fixcookers

Rating: 5 out of 5
Rotherham
This depends on the fuse requirements for the oven, e.g. it could require a dedicated 32 amp circuit and if this is the case the fuse is on the consumer unit so all you then need is a double pole 32 amp isolation switch which is normally a big red switch, easily recogniseable. As a general rule if your built in oven has more than 1 door, eg double oven then generally they need a 32 amp fuse because you can run 2 ovens or an oven and a grill at the same time which requires more current than a 13 amp fusedcswitch or plug socket supply can cope with Most single door ovens require a 13 amp fuse. If this is your type then it should be plugged in or wired to a 13 amp fused spur however you may not be able to see this as it could be somewhere you cannot see, eg behind the appliance. So the elrctricisn may have fitted a switch to make it easier to isolate the oven.
Answered15 September 2019
1

Hek-Tek Ltd

Rating: 5 out of 5
Ebbw Vale
Fuse switch is used where an appliance is installed which will not require more than 13amp to power it. The isolator switch is rated at 45amp which is used for appliances that use a larger amount of power, for example a ceramic hob (generally 32amp). Sometimes when a kitchen is altered they re-use the cooker supply (32amp) to power an oven which may only require 13amp. In this case they should have a means of protecting the oven such as a 13amp plug top (containing a fuse).
Answered15 September 2019
1

Anonymous user

It’s a 45a double pole switch probably. Doesn’t have a fuse. Protection is upstream at your consumer unit
Answered14 September 2019
0

Keell Electrical Services

Rating: 5 out of 5
Kenilworth
Building regulations require that there is a double pole switch within 2 metres of the cooker, so that it can be isolated from the supply. A Fused control unit is only single pole in the line, and does not isolate the neutral.
Answered14 September 2019
0

JVDC Electrical Limited

Rating: 5 out of 5
Wells
A switch fuse spur can only switch 13amp max. An isolator for a oven can switch upto 45amps.
Answered14 September 2019
0

RPF Electrical Services Ltd

Rating: 4.9 out of 5
Birmingham
Hello. Normally an oven is more powerful (current and wattage) and requires a different switch (isolator, may include a socket) to be used to handle the higher power, therefore a red switch style is normally used, at least 100mm or 10cm away from the edge of an the oven/hob unit. Other appliances are often of a lower power rating so a switched fused connection unit is used to isolate the appliance below it. An oven with a good power rating is often above the highest fuse of 13amps, maybe anything from 20-4amps, so the 40-50amp red switch with a dedicated circuit and suitable size cable should be installed, with suitable protective device in the consumer unit, with rcd protection preferred. Hope this helps. Ask a local qualified registered electrician to come and check all of this out for you. Thanks RPFESLTD
Answered15 September 2019
0

Focus Solutions - Electrical

Rating: 5 out of 5
Tamworth
Simple answer is, they don’t make fused switches big enough for cookers. 13amps is the maximum. Whilst the cooker switch is not good enough for isolation purposes because you can’t lock off the device, it’s perfect for safety switching in case of anything happening on the cooker itself.
Answered15 September 2019
0