Xfrmr Breaker

[Alwayslearningelec]

I know dumb question. I see this BOM includes an output breaker. This would NOT be a breaker within the xfrmr would it? I'm think the panel breaker but second guessing that.

 

[augie47]

Can't speak for that particular transformer but there are transformers on the market with built in secondary breakers.

https://www.eaton.com/us/en-us/skuPage.RV48M28T4516PB.specifications.html

 

[ron]

There is a "movement" to pull the secondary output breaker as close to the secondary windings to reduce arc flash incident energy at the downstream panelboard.

As mentioned by Augie, Eaton recently released a standard product for this purpose.

 

[Alwayslearningelec]

There is a "movement" to pull the secondary output breaker as close to the secondary windings to reduce arc flash incident energy at the downstream panelboard.

As mentioned by Augie, Eaton recently released a standard product for this purpose.

So the "secondary output breaker" would be within the xfrm?

 

[David Castor]

It's possible. This is being called a "Transfilter" whatever that means, so seems likely there is some additional components provided with the transformer, perhaps in an enlarged transformer enclosure or separate enclosure.

 

[Tulsa Electrician]

If the transformer has a breaker in it. Be careful with working clearances. I would say the working space rule now applies. Would like to here what others think.

 

[don_resqcapt19]