As far as I know there is not a problem. We've fitted hundreds of
assorted types of Schaffner IEC input filters to equipment since the
mid 1990s and as far as I know without any failure. I suppose there
may have been failures but our customers may just not have mentioned
it to us? (Unlikely!)
It is true that most of those will have been living in 220/240VAC
land their whole lives whereas the only HP fitted one I've had fail
went within a day or so of crossing the Atlantic and seeing 240V for
the first time.
Any 'stand alone' yellow Rifa caps you find serving as input filters
should be changed with extreme prejudice on sight however!?
On 06/09/2022 09:30, Stephen Bell
wrote:
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I have recently acquired a 3458A which incorporates a Schaffner
FN9223-3-06 mains filter. The 3458A has a build date of approx
2005 and the Schaffner filter has a date code of 0432.
I am wondering if these later Schaffner filters have the same
dramatic failure mode exhibited by their earlier models and
whether it should be replaced. I am reluctant to replace it if it
is not necessary due to it being riveted into the chassis.
