EV (AEVS)
NOTES
1. Usage, transport and storage conditions
1) Temperature: –40 to +80 ° C –40 to +176 ° F (–40 to +65 ° C –40
to +149 ° F when continually powered at 14 V DC)
2) Humidity: 5 to 85% RH (Avoid freezing and condensation.)
The humidity range varies with the temperature. Use within the
range indicated in the graph below.
Ex. 1: When using a varistor
Recommended Varistor; Maximum Energy: more than 1J
(However, please make settings using values that take into
consideration the worst case scenario.)
Varistor voltage: For 12 V DC input, Min. 18 V
Ex. 2: When using a zener diode (circuit)
3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for usage, transport, and
storage
(1)
12V
ZD18V
Humidity, %RH
Relay
Coil
D
ZD18V +
Diode voltage
Clamp voltage
85
Tolerance range
(Avoid freezing
(Avoid
when used at
temperatures
lower than
0 ° C 32 ° F )
5
condensation
when used at
temperatures
higher than
0 ° C 32 ° F )
When continually
powered at 14 V DC
(2)
12V
–40
–40
0
+32
65 80
+149 +176
Temperature, ° C ° F
Relay
Coil
ZD30V Zener voltage
30V ? 12V=18V
Clamp voltage
ZD30V
4) Condensation
Condensation forms when there is a sudden change in
temperature under high temperature and high humidity
conditions. Condensation will cause deterioration of the relay
insulation.
5) Low temperature, low humidity environments
The plastic becomes brittle if the relay is exposed to a low
temperature, low humidity environment for long periods of time.
2. Condition of tightening screw
1) Tightening torque for ?xing relay-body;
Vertical and Horizontal type (M5 Screw): 3.0 to 4.0 N·m
2) Tightening torque for contact terminal;
Vertical type (M5 screw): 3.0 to 4.0 N·m,
Horizontal type (M4 screw): 2.2 to 2.8 N·m
3. Allowable pulling force for the coil input lead wire:
Max.10N (for vertical type)
4. Insertion strength into the tab terminal: Max. 49N (for
horizontal type)
Reference: Please select a faston terminal (?at connection
terminal) which comply with JIS C2809-1999.
For plate thickness 0.8mm .031inch and #250 tab terminal
5. Cautions for use
1) Regarding cautions for use and explanation of technical
terms, please refer to our general catalog.
2) Additionally the ambient temperature and condition for your
application should be considered because pick-up and drop-out
voltage will be changed.
3) If it includes ripple, the ripple factor should be less than 5%.
For coil surge absorption, please use a zener diode or varistor,
etc., so that the clamp voltage reaches 1.5 times or more (at
least 18 V for rated 12 V type) the rated operation voltage.
If only a diode is connected in parallel with the relay coil, the
contact opening velocity will become slow and suf?cient cutoff
performance cannot be guaranteed. Please avoid such usage.
4) Lifetime is speci?ed under the standard test conditions in JIS
C 5442. (temperature 15 to 35 ° C 59 to 95 ° F , humidity 25%RH to
85%RH)
Lifetime is dependent on the coil driving circuit, load type,
operation frequency and ambient conditions. Check lifetime
under the actual condition.
Especially, Contact terminals have polarity. So if the contact
terminals were connected with opposite pole, the electric life
would be shorter.
5) When applying current which includes precipitous changes or
ripple, the relay may generate buzzing sound. Therefore, please
con?rm with the actual load.
6) If the relay is used while exceeding the coil rating, contact
rating or cycle lifetime, this may result in the risk of overheating.
7) As a general rule, do not use a relay if it has been dropped.
8) Take care to avoid cross connections as they may cause
malfunctions or overheating.
9) When the screws for ?xing relay-body and for additional
terminal are tightened, it should be used within the range of
decided torque.
10) Avoid mounting the relay in strong magnetic ?elds (near a
transformer or magnet) or close to an object that radiates heat.
11) If the several relays are mounted closely or a heat-
generation object is close to the relay, take care to check the
abnormal temperature-rise and the insulation distance between
the terminals outside of the relay.
12) The relay contacts are encapsulated in an inert gas
atmosphere. Care must be exercised when the relay is to be
used or stored at high ambient temperature.
13) If the power is turned off and then immediately on after
applying the rated voltage (current) continuously to the relay’s
coil and contact, the resistance of the coil will increase due to a
rise in the coil temperature.
This causes the pick-up voltage to rise, and possibly exceed the
rated pick-up voltage. In these circumstances, take measures
such as reducing the load current, limiting the duration of current
?ow, and applying a coil voltage higher than the rated operating
voltage (quick start).
ASCTB282E 201202-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
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