Delta Breakers

[hardworkingstiff]

408.36(C)

......Delta breakers shall not be installed in panelboards.

What is a "Delta" breaker, and why can't it be installed in panelboards?

 

[chris kennedy]

Here is a link.

 

[hardworkingstiff]

Here is a link.

Thanks Chris.

 

[220/221]

There are still a ton of them here in AZ.

Lots of Zinsco and FPE with the occaisional SqD and ITE thrown in.