Any sparkies/electrical engineers here?

[Fred Nurk]

Quick question for the experts:

I'm looking at buying an induction cook top. The cook top has its own breaker in the switch box separate for all other appliances.

If I'm buying this:

https://www.aegaustralia.com.au/cooking/cooktops/induction-cooktops/ikk64681fb/

Which says the connected load is 7.35kW.

Will I need to get this RCBO upgraded?

HAGER ADC332T | RCBO 32Amp 1P&N 6kA C Curve 30mA Type A

Save on HAGER ADC332T | 32Amp 6 kA Single Pole RCBO today, Why pay more? We offer Fast Delivery at the lowest prices, shop safely with Australia's leading Online Electrical Wholesaler.

www.sparkydirect.com.au

I'm definitely going to pay someone to do the work if I need something done in the switchboard. I'm just not sure if I need to, or if I can just get the cook top installed.

Thanks!

What's the existing breaker rating? Likelihood is if you're exceeding the CB rating and need an uplift, you'll need a new cable run too, not just an RCBO upgrade.

 

[Dales Cannon]

Hell that's close but I am going to say yes which means checking cable sizing too. Looking at the manual you can get to 7.3kW with a combination of plates.

#2 refitted his place with a similar unit and #1 who is a heavy industry sparkie made sure no combination exceeded the breaker and cable rating. I was impressed, normally he won't get out of bed for under 6.6kV.

 

[cokeonspecialtwodollars]

Quick question for the experts:

I'm looking at buying an induction cook top. The cook top has its own breaker in the switch box separate for all other appliances.

If I'm buying this:

https://www.aegaustralia.com.au/cooking/cooktops/induction-cooktops/ikk64681fb/

Which says the connected load is 7.35kW.

Will I need to get this RCBO upgraded?

HAGER ADC332T | RCBO 32Amp 1P&N 6kA C Curve 30mA Type A

Save on HAGER ADC332T | 32Amp 6 kA Single Pole RCBO today, Why pay more? We offer Fast Delivery at the lowest prices, shop safely with Australia's leading Online Electrical Wholesaler.

www.sparkydirect.com.au

I'm definitely going to pay someone to do the work if I need something done in the switchboard. I'm just not sure if I need to, or if I can just get the cook top installed.

Thanks!

Back of the coaster calculation... 7.35kW on 240V is just over 30 Amps and a bit under 32 Amps. Fixed connections like this are 1:1 on your maximum demand, so as long as there is nothing else connected to the circuit and the cable was appropriately sized for the installation method then you'll be okay.

Worth noting, if sized correctly, the breaker is there to protect the cable. So like @Fred Nurk said, if this does trip the breaker you'll likely need to upgrade both cable and breaker.

 

[fatboyonabike]

View attachment 412489

I have this situation with this Deutsch plug.

Can I strip the sheath back and get this back in here somehow?

I'm late to the party here, but for future reference, you can remove the pins from deutsch plugs and sockets....first have to remove the front sealing piece, you may need to butcher a small terminal screw driver to get it out..then there is a small barb that holds the pin in, you need to push this back to push the pin out (if some numpty has busted off the wire) or pull the wire if still attached..the socket end is slightly different, where there is a small plastic divider that needs to be pulled out, if you look in the socket at it, you will see a very small notch, grind your service tool to slide into the slot with a small recess in it to get in behind this, and then you need to twist 90° to pull it out...pins are held in the same as the plugs......

And on the Oven, have a look at what was in there...if the kW rating is the same, all good..if not, as ovens require a 100% maximum demand value, you may need to upgrade CB and cable...find the rating and simply use Ohms law to figure out the amps, there is a few factors that govern how much a certain cable can carry, but see what the current breaker is rated at, it may be lower than what the cable is rated at (you might get lucky)

 

[k3n!f]

Thanks everyone for your help, much appreciated!

 

[Fred Nurk]

Back of the coaster calculation... 7.35kW on 240V is just over 30 Amps and a bit under 32 Amps. Fixed connections like this are 1:1 on your maximum demand, so as long as there is nothing else connected to the circuit and the cable was appropriately sized for the installation method then you'll be okay.

Worth noting, if sized correctly, the breaker is there to protect the cable. So like @Fred Nurk said, if this does trip the breaker you'll likely need to upgrade both cable and breaker.

Catch would be it might be a single circuit with a 20A CB, which might well be a cable size that won't do 32A.
Also, tripping at 1.5 x breaker rating is far from instantaneous, so not a good policy to use CB tripping as an indication to upgrade.

 

[cokeonspecialtwodollars]

Catch would be it might be a single circuit with a 20A CB, which might well be a cable size that won't do 32A.
Also, tripping at 1.5 x breaker rating is far from instantaneous, so not a good policy to use CB tripping as an indication to upgrade.

Might be, however the breaker that was linked to in the original post is 32A, so I'm assuming that it was correctly selected for the cable size and installation method.