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.
the timeinrush current, steady state current and N°te that sinT inductance the rc
time brake current differ depending whether the lasts longer when power cut The contact
load the motor free locked. particular, with
non-polarized relays, when using from contact of
from contact for the motor brake, mechanical life
might affected the brake current.3to10times
(7)CapacitiveLoad
i/io approx.10to20times
(6)ElectromagneticContactLoad
i/io approx.
P rtic rly ith rre ,
m h
c rre h
p e
ta rig tio ip
Typeofload Inrushcurrent
Resistiveload Steadystatecurrent
Solenoidload 10to20timesthesteadystatecurrent
Motorload 5to10timesthesteadystatecurrent
Incandescentlampload 10to15timesthesteadystatecurrent
Mercurylampload Approx.
• When using relay control motor and brake, .
(1/60 1/30 seconds)
1/2 cycles (1/120 1/30 secom
• When using long wires
If ire d
in irc it, rre t
m tra y
c ita tin ire d
a rie s
w ith .5to10times (5)SolenoidLoad
i/io approx. Therefore,
please verify current the actual load.3timesthesteadystatecurrent
Sodiumvaporlampload 1to3timesthesteadystatecurrent
Capacitiveload 20to40timesthesteadystatecurrent
Transformerload 5to15timesthesteadystatecurrent
b h
c rre .
• Electrical life high temperatures
V rify tric l
life ffe hig h
te .
may beome easily worn..
624 ds_x61_en_relay_technical_information_091112D
.., are combined common
discharge lamp circuits.
Load Inrush Current Wave and Time
(1)IncandescentLampLoad (2)MercuryLampLoad
i/io approx.
Contacts L
_nmr<rn_
(for high power factor type)
y
_10 seconds_
or less
C
(4)MotorLoadi/io approx.20to40times
• Conditions become more harsh plugging inching i
performed since state transitions are repeated.3times
(3)FluorescentLampLoad
i/io approx. Note that the inrush
current may times, especially if
the power supply impedance low the
high power factor type.General Application Guidelines
• Type load and inrush current
T its rre t
c ris tic ith e
s itc fre rta t
fa .5to10times
Inrush current/rated current:
i/io] times
3 5
minutes
1
io
A
The discharge tube, transformer, choke coil,
capacitor, etc.
A rify rity sin ,
d tric life is
a ffe rity
