Split 50 Amp line into Kitchen?

We've currently have one 50 AMP outlet in our kitchen that is being used by our range. However, we just purchased a double wall oven that also requires a 50 AMP outlet.

Does this mean we have to run another 50 AMP rated line from the panel to the new receptcle or can we split the existing line that is serving our range to serve both receptacles?

 

You will probably need to pull a new circuit, but we need to know some specific information to be sure.

1) On the existing circuit, what is the cable type (colors, AWG, metal type) and what is the breaker size?

2) What are the electrical requirements from the nameplate or install instructions on the range?

3) What are the electrical requirements from the nameplate or instructions on the oven?

 

Hi ibpooks,

1) The existing circuit is using white 8/3 cable and the breaker size is 40.

2) The existing range (Beaumark 15660) nameplate rating is 120/208V and 120/240V.

3) The new double oven (JennAir JJW3830WP) nameplate rating is 120/240V @ 7.2KW and 120/208V @ 5.4KW. Also, the install notes say that this unit "requires a separate 40-amp circuit", which I take to mean a 50-amp receptacle.

 

Normally the double wall oven useally have it own circuit which it is common to do that but single oven it can be tossed up depending on wattage itself but really myself I rather have it own circuit that way you will not have any issue at all.

Merci,Marc

 

In my opinion the existing circuit cannot be tapped for the new oven. The oven circuit should be installed with a 40A double-pole breaker and 8-3/g NMD cable. The receptacle is a NEMA 14-50R (40A and 50A circuits both use a 50A receptacle). The oven will need a 14-50P cord set and must have the internal bonding jumper removed per manufacturer's installation instructions for a four-wire circuit.

 

Thanks again. I've just realized that the double oven doesn't come with a plug on its power cord (it's exposed wire) so we will be attaching this to a junction box.

Interestingly, when I started looking at running the new 8-3 wire I realized that our 100amp main panel is already full and will need to be upgraded before we run the wire for the new oven (we wanted 200amp and more circuits anyway, but we were hoping to do this a bit later down the road).

I'm wondering if it makes sense to eventually run a couple of these lines to the kitchen in case we get another appliance in the future that requries this? Also, given there isn't much more cost, why wouldn the norm be for most kitchens to have 2-3 50amp receptacles even if they weren't going to be used by the initial design? Just seems to be a better way to plan for the future.

 

That is allowed.

You may not need a service upgrade if the demand load has not increased much. You might just need more spaces which can be added much more cheaply with a subpanel rather than replacing the main panel.

I don't think so.

Houses generally aren't built for the future, but for the cheapest construction cost. Moreover two 40A circuits is not typical. Usually a kitchen has either a 40A freestanding range or a cooktop and an oven which are usually like 30A and 30A.