DC Rated Fuseholder On AC

[Dave.H]

Not too sure if this is the right place to ask but I need a panel
mount fuse holder for 250 volt AC, the only ones I can find is plastic
one rated for 500 volts DC. Are these safe for using on DC? A pretty
stupid question I know.

 

[Phil Allison]

"Dave.H"

Not too sure if this is the right place to ask but I need a panel
mount fuse holder for 250 volt AC, the only ones I can find is plastic
one rated for 500 volts DC. Are these safe for using on DC?

** Bad typo.

The DC case is far more difficult to meet than the AC case - since DC
arcs are far harder to break than AC ones.

So the answer to your Q is a definite yes.

But not the other way around - a 250 volt AC switch must NOT be assumed to
be OK on 250 volt DC.

A pretty stupid question I know.

** Not really - for once.



........ Phil

 

[Dave.H]

Thanks, Phil.