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Bernhard Kuemel
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http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
What does 10(3) A mean? 10 A AC, 3 A DC?
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More likely 10A resistive, 3A reactive, both AC.http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
Well, it appears to be related to inductive switches - a EuropeanOn Fri, 10 Aug 2012 18:02:28 +0200, Bernhard Kuemel
bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
More likely 10A resistive, 3A reactive, both AC.
There are also dual safety ratings, but they are not permitted to be
combined so ambiguously in labeling.
RL
switches handle less DC amps at the same voltage. This is due to thelegg wrote:
On Fri, 10 Aug 2012 18:02:28 +0200, Bernhard Kuemel
bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
More likely 10A resistive, 3A reactive, both AC.
There are also dual safety ratings, but they are not permitted to be
combined so ambiguously in labeling.
RL
Well, it appears to be related to inductive switches - a European
standard. Perhaps it means 10A surge, 3A continuous load (vacuum
cleaner, etc).
Hunting for Pronic r30 t85 switch didn't turn up much, but enough to
make that guess after some refinements in the search.
John :-#)#
More than likely the difference between DC amps and AC amps. Most
Page 20 ofhttp://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
The AC symbol follows the dual rating. If it were a DC rating, the DCJohn Robertson wrote:
legg wrote:
On Fri, 10 Aug 2012 18:02:28 +0200, Bernhard Kuemel
bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
More likely 10A resistive, 3A reactive, both AC.
There are also dual safety ratings, but they are not permitted to be
combined so ambiguously in labeling.
RL
Well, it appears to be related to inductive switches - a European
standard. Perhaps it means 10A surge, 3A continuous load (vacuum
cleaner, etc).
Hunting for Pronic r30 t85 switch didn't turn up much, but enough to
make that guess after some refinements in the search.
John :-#)#
More than likely the difference between DC amps and AC amps. Most
switches handle less DC amps at the same voltage. This is due to the
lack of no interrupts you normally get with AC which works better to
quench the arc (Plasma).
But then again, don't listen to me, I am a farm boy, born where every
one is related.
Jamie
On Fri, 10 Aug 2012 20:36:44 -0400, Jamie
jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
John Robertson wrote:
legg wrote:
On Fri, 10 Aug 2012 18:02:28 +0200, Bernhard Kuemel
bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
More likely 10A resistive, 3A reactive, both AC.
There are also dual safety ratings, but they are not permitted to be
combined so ambiguously in labeling.
RL
Well, it appears to be related to inductive switches - a European
standard. Perhaps it means 10A surge, 3A continuous load (vacuum
cleaner, etc).
Hunting for Pronic r30 t85 switch didn't turn up much, but enough to
make that guess after some refinements in the search.
John :-#)#
More than likely the difference between DC amps and AC amps. Most
switches handle less DC amps at the same voltage. This is due to the
lack of no interrupts you normally get with AC which works better to
quench the arc (Plasma).
But then again, don't listen to me, I am a farm boy, born where every
one is related.
Jamie
The AC symbol follows the dual rating. If it were a DC rating, the DC
symbol would appear.
RL
Absolutely incorrect..
On Sat, 11 Aug 2012 16:10:24 -0400, Jamie
jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
legg wrote:
On Fri, 10 Aug 2012 20:36:44 -0400, Jamie
jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
John Robertson wrote:
legg wrote:
On Fri, 10 Aug 2012 18:02:28 +0200, Bernhard Kuemel
bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
More likely 10A resistive, 3A reactive, both AC.
There are also dual safety ratings, but they are not permitted to be
combined so ambiguously in labeling.
RL
Well, it appears to be related to inductive switches - a European
standard. Perhaps it means 10A surge, 3A continuous load (vacuum
cleaner, etc).
Hunting for Pronic r30 t85 switch didn't turn up much, but enough to
make that guess after some refinements in the search.
John :-#)#
More than likely the difference between DC amps and AC amps. Most
switches handle less DC amps at the same voltage. This is due to the
lack of no interrupts you normally get with AC which works better to
quench the arc (Plasma).
But then again, don't listen to me, I am a farm boy, born where every
one is related.
Jamie
The AC symbol follows the dual rating. If it were a DC rating, the DC
symbol would appear.
RL
Absolutely incorrect..
We buy switches all the time that are stamped that way.. if you look
at the catalog directory on the switch, you'll see the DC rating which
follows the same markings.
Not saying that switch he has is also following that rule but,
switched (many of them) are marked that way with no DC indicator on the
body, mainly because their isn't enough room to do so.
Page 13:
http://www.jameco.com/Jameco/Products/ProdDS/1945284.pdf
Possible multiple markings for this switch are listed.
Manufacturer ratings have little to do with the requirements for the
markings of certified components. There are likely different part
numbers that cover varying labeling requirements. These markings are
informative,only - but they must not misinform. A DC marking will have
the appropriate DC symbol.
The important marking is actually the identifying part number of the
manufacturer's part - that can be cross-related to the safety file's
paperwork at any time, for current information.
RL
Oh, that explains it, JameCo..
Page 13:legg wrote:
On Fri, 10 Aug 2012 20:36:44 -0400, Jamie
jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
John Robertson wrote:
legg wrote:
On Fri, 10 Aug 2012 18:02:28 +0200, Bernhard Kuemel
bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
More likely 10A resistive, 3A reactive, both AC.
There are also dual safety ratings, but they are not permitted to be
combined so ambiguously in labeling.
RL
Well, it appears to be related to inductive switches - a European
standard. Perhaps it means 10A surge, 3A continuous load (vacuum
cleaner, etc).
Hunting for Pronic r30 t85 switch didn't turn up much, but enough to
make that guess after some refinements in the search.
John :-#)#
More than likely the difference between DC amps and AC amps. Most
switches handle less DC amps at the same voltage. This is due to the
lack of no interrupts you normally get with AC which works better to
quench the arc (Plasma).
But then again, don't listen to me, I am a farm boy, born where every
one is related.
Jamie
The AC symbol follows the dual rating. If it were a DC rating, the DC
symbol would appear.
RL
Absolutely incorrect..
We buy switches all the time that are stamped that way.. if you look
at the catalog directory on the switch, you'll see the DC rating which
follows the same markings.
Not saying that switch he has is also following that rule but,
switched (many of them) are marked that way with no DC indicator on the
body, mainly because their isn't enough room to do so.
Bernhard Kuemel <bernhard@bksys.at> wrote:
http://darsie.dyndns.org/bernhard/temp/P1090699-small.JPG
What does 10(3) A mean? 10 A AC, 3 A DC?
Page 20 of
http://www.cherrycorp.com/english/switches/pdf/switch_cat.pdf (6 MB)
says this marking is according to the European standard EN 61058-1 and
means 10 A resistive, 3 A "motor", 250 V AC. The micro symbol might
mean "microdisconnection, contact gap < 3 mm", and the T85 might mean
that it is temperature rated to 85 C.
There is no further explanation in that document as to what "motor" load
means - higher inrush current, different power factor, etc. Googling
around finds a suggestion that for EN 61058-1, "motor" load means a
power factor of about 0.6, and that the switch can handle an inrush
current of six times the rating (18 A in this case).
If you try switching 250VDC, regularly, with one of those switches,legg wrote:
snip
Page 13:
http://www.jameco.com/Jameco/Products/ProdDS/1945284.pdf
Possible multiple markings for this switch are listed.
Manufacturer ratings have little to do with the requirements for the
markings of certified components. There are likely different part
numbers that cover varying labeling requirements. These markings are
informative,only - but they must not misinform. A DC marking will have
the appropriate DC symbol.
The important marking is actually the identifying part number of the
manufacturer's part - that can be cross-related to the safety file's
paperwork at any time, for current information.
RL
Oh, that explains it, JameCo..
I don't think you get it. No surprise.
Jamie