Strange Breaker Sizes

[A-1Sparky]

I've seen manufacturer's specs for equipment that call for strange size breakers such as 105 Amp or 115 Amp. I've personally never seen these sizes before. Do they actually make them? I usually go with the closest rated breaker I can get because alot of the panels I deal with are ancient and have very large and usually very rare molded case breakers. The best I can do for replacements are often remanufactured units, and the selection is quite limited.

 

[480sparky]

Red 240.6(A) and that will tell you why 105a breakers don't exist.

 

[zog]

The best I can do for replacements are often remanufactured units, and the selection is quite limited.

then you are looking in the wrong places.

 

[ishium 80439]

What kind of stuff are you working on that call for these oddballs?

 

[A-1Sparky]

Zog, can you point me in the right direction for such breakers? If those oddball breakers don't exist, then why do some equipment manufacturers call for such weird OCPD ratings? Ishium, recently I wired up a commercial water heater that called for a 115 Amp OCPD. Just got me wondering if such an animal existed.

 

[iwire]

Red 240.6(A) and that will tell you why 105a breakers don't exist.

Manufacturers can make whatever size they want and we can even use them.

240.6 just list the standard sizes.

 

[nakulak]

have you called your supplier and asked them ? The manufacturer, if given the right information, can set the trips on adjustable trip breakers for you, no ?

 

[A-1Sparky]

Yeah, I imagine they could. I've just never heard of a manufacturer doing so. If they would for a reasonable price, I'd have them set them for each oddball situation.