Electrical work recommendation for a wall oven
#1
01-14-15, 08:48 AM
Electrical work recommendation for a wall oven
Hi everyone, new to the forum and been reading up various threads.
Now looking for some recommendation on a new appliance in the kitchen.
We decided to use the microwave cutout for a steam oven instead.
Now here is the setup at the cabinet cutout.
-110v recep occupying single pole 15 amp breaker on a 14/2 nmd90 wire.
- Below the mircowave i have a 240v junction box with 8/3 nmd90 wire on 2pole 40amp, planned for another single wall oven using 30amp.
The steam oven reqs 240v 15amp, the single wall oven uses 30amp.
As i lookup
- a 14/2 wire can support a 240v 15 amp 2-pole break - so it should work by replacing the breaker?
- a 8/3 can support 240v 45 amp 2-pole break - since both of my appliances use 45 amp total it should work by replacing this breaker too?
Obviously i don't have the technicality to DIY and I will be hiring a electrician to do the work but would like some reference points prior to getting it done - esp given the situation i don't know which route is "better" if it works at all.
Any suggestions?
Thanks!!
Now looking for some recommendation on a new appliance in the kitchen.
We decided to use the microwave cutout for a steam oven instead.
Now here is the setup at the cabinet cutout.
-110v recep occupying single pole 15 amp breaker on a 14/2 nmd90 wire.
- Below the mircowave i have a 240v junction box with 8/3 nmd90 wire on 2pole 40amp, planned for another single wall oven using 30amp.
The steam oven reqs 240v 15amp, the single wall oven uses 30amp.
As i lookup
- a 14/2 wire can support a 240v 15 amp 2-pole break - so it should work by replacing the breaker?
- a 8/3 can support 240v 45 amp 2-pole break - since both of my appliances use 45 amp total it should work by replacing this breaker too?
Obviously i don't have the technicality to DIY and I will be hiring a electrician to do the work but would like some reference points prior to getting it done - esp given the situation i don't know which route is "better" if it works at all.
Any suggestions?
Thanks!!
#2
01-14-15, 09:04 AM
Forum Topic Moderator
You do not want to combine the appliances into one circuit. Keep them separate as designed.
AFAIK, #14 is good for 15 amps, the same as under the NEC.
AFAIK, #14 is good for 15 amps, the same as under the NEC.
#3
01-14-15, 09:14 AM
Thanks for the quick response.
Just for learning... do wonder what would be the possible issue with combining 2 appliances into one circuit if there is sufficient wire/break?
Thanks!
Just for learning... do wonder what would be the possible issue with combining 2 appliances into one circuit if there is sufficient wire/break?
Thanks!
#5
01-14-15, 06:45 PM
Member
a 14/2 wire can support a 240v 15 amp 2-pole break - so it should work by replacing the breaker?
#6
01-14-15, 07:38 PM
Group Moderator
The steam oven reqs 240v 15amp, the single wall oven uses 30amp.
If the steam oven is rated for 15A at 240v then it needs to be on #12 wiring for 20A.
Is the wall oven USES 30A at 240v then it needs its own 45A circuit.
Even if you were able to combine both appliances on the 8/3 circuit you would need a circuit panel in the kitchen. You couldn't put a 15A load on a 45A breaker... there would be no protection.
The OP is in Canada.
#7
01-15-15, 08:36 AM
thanks for the additional info.
yes this is for canada & the steam 15a/240v and wall oven 30a/240v are per appliance usages.
what the builder roughed in is 14/2 on 120v/15amp and 8/3 on 240v/40amp.
looks like this is turnning into a bigger task requiring new wiring after all.
yes this is for canada & the steam 15a/240v and wall oven 30a/240v are per appliance usages.
what the builder roughed in is 14/2 on 120v/15amp and 8/3 on 240v/40amp.
looks like this is turnning into a bigger task requiring new wiring after all.
#9
01-15-15, 09:33 AM
Forum Topic Moderator
Your math is correct.
Why do you think new wiring is needed? The #14 should be good for 15 amps.
Why do you think new wiring is needed? The #14 should be good for 15 amps.
#10
01-15-15, 11:42 AM
actually that thought was in between reading the percentage load requirement and having the steam's requiring 15amp so lead to thinking i need a 20amp new circuit....which then need at least a 12awg wire..
but after revisiting the manual looks like the 15amp is good so i can drop that thoguht
p.s. sry about the double posting
but after revisiting the manual looks like the 15amp is good so i can drop that thoguht
p.s. sry about the double posting
