There are no breakers rated for 100% available under 250 amps currently.
Rumours of the new Leviton ones being rated at 100% but I’ve yet to see any proof of that.

Keep in mind that for fixed resistive heat the conductors can be loaded to 100%. 62-114(7)

 

There are no breakers rated for 100% available under 250 amps currently.
Rumours of the new Leviton ones being rated at 100% but I’ve yet to see any proof of that.

Keep in mind that for fixed resistive heat the conductors can be loaded to 100%. 62-114(7)

As Eddy said, you can have the conductors at 100%. You are allowed to upsize the breaker to account for the higher current. ie, 20A breaker on #14 cable.

By that logic I still don't understand why people are saying you can only load 3840W on a 20A circuit for 240V heaters. I guess 62-114(6) overrules (7)

Like in what situation could I load 4400W vs 3840W if the rule says I can load it at 100%?

Think I am overthinking this, feeling dumb

 

So if you are asked in theory "How much wattage of baseboard heat can you put on a branch circuit at 208V" - Do you use 80% of 100%?

As Eddy said, you can have the conductors at 100%. You are allowed to upsize the breaker to account for the higher current. ie, 20A breaker on #14 cable.

 

So, to continue eddy's thought, you just put a bigger breker in. A 25A breaker gives you 4800w@80%. And, as 62-114 (8) if they don't make a 25A breaker you can use a 30

 

Sorry to revive an old thread but this one is relevant to my question. I am looking to add the following heater to a mud room we have as we don't really have the space to accomodate a traditional baseboard.

Would a Braun Wall Heater (ASIN: B0002YTLBI) still be considered a fixed resistive load for load calculation or would the blower in it negate that?

I currently have a circuit that is 240V/15A with a 500W, and 1500W baseboard on it. If I can bump the breaker to 20A to accommodate the heater above (1000W) it would save me a ton of work in running the wire for it.

As a new user I can not include a link unfortunately directly to the unit I am considering.