Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.
Poznámky redaktora
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W hen pulse voltage with time of
less than minutes used, the coil
tem perature rise bares relationship to
the time.
In actual use with E-type insulation, when
the bient tem perature 40°C 104°F, a
tem perature rise limit 80°C 176°F is
thought reasonable according the
resistance method.4% for 1°C, and
with this ratio the coil resistance
increases.
5 its its )
In the case sequence circuit
construction, because bypass flow or
alternate routing, necessary take
care not have erroneous operation or
abnormal operation. Also, will the same using it
in higher tem perature atmosphere. Also, the case DC
operation, the extent large coil input,
the operating tim rapid, but too
rapid, the “Form contact bounce time
is extended. Accordingly the side
is necessarily the side for making contact
connections (contacts for relays, timers
and limit switches, etc. The
resistance/tem perature relationship for
copper wire about 0. understand this
condition while preparing sequence
circuits, shown Figure with lines
written the power source lines, the
upper line always and the lower line
© (when the circuit AC, the same
thinking applies).
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In addition being requirem ent for
relay operation stability, the maximum
continuous voltage important
constraint for the prevention such
problems therm deterioration or
deform ity the insulation material, the
occurrence fire hazards. Note,
however, that voltage greater than or
equal the maximum continuous
voltage impressed the coil, the coil
may burn its layers short due the
tem perature rise. The various relays are essentially
the same this respect.
Please warned that load conditions (in
particular when inrush current large or
load close the load rating) may
cause the working life shorten and
slight welding.
/ /
— Upper side line
/ 'i*— Contact circuit
Power source lines -----L-------- J
\ ®
i*"— Load circuit
V Lower side line
Figure Example vertically written
sequence circuit
ds_x61_en_relay_technical_information_091112D
1 1
9
.
However, for some polarized relays, this
rate change considerably smaller. This varies with the ratio of
ON tim OFF time, and compared with
continuous current passage, rather
small.General Application Guidelines
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Proper usage requires that the rated
voltage impressed the coil. Furthermore, not
exceed the usable bient tem perature
range listed the catalog.
C urrent passage time %
For continuous passage
Tem perature rise
value 100%
ON OFF About 80%
ON OFF About 50%
ON OFF About 35%
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te t)
In relays, after continuous passage of
current the coil, the current turned
OFF, then ediately turned again,
due the tem perature rise the coil, the
pick-up voltage will become som ewhat
higher. However, for
the som ewhat large type relay where
bounce large, the operate tim to
16ms, with release tim the order 9
to 18ms.), and the side is
the load circuit side (relay coil, tim coil,
magnet coil, solenoid coil,
motor, lamp, etc.
4 lie lta e
In the case operation, there is
extensive variation operate time
depending upon the point the phase at
which the switch turned for coil
excitation, and expressed a
certain range, but for miniature types is
for the most part 1/2 cycle. That is, order operate of
the relay, necessary that the voltage
be higher than the pick-up voltage and
the pick-up voltage rises accordance
with the increase the resistance value. However, when
complying with the Electrical Appliance
and Material Safety Law, this becomes
75°C 167°F
