Power relays ( Over 2 A )
S RELAYS
Product Catalog
2022.4
Power relays (Over 2 A)
S
RELAYS
2 Form A 2 Form B/3 Form A 1 Form B/4 Form A /4 A Polarized power relays
FEATURES
Protective construction：Sealed type
28
Four-pole, multi-contact arrangement
(2 Form A 2 Form B, 3 Form A 1 Form B, 4 Form A)
Low thermal electromotive force: Approx. 3μV
Twin (bifurcated) contacts
Latching types available
PC board sockets are available
12
10
TYPICAL APPLICATIONS
Measuring equipment
（Unit：mm）
4-GAP BALANCED ARMATURE MECHANISM
alanced armature mechanism has excellent
B
resistance to vibration and shock
igh sensitivity and reliability provided by 4-gap
H
balanced armature mechanism
The armature structure enables free rotation around the
armature center of gravity. Because the mass is maintained in
balance at the fulcrum of the axis of rotation, large rotational
forces do not occur even if acceleration is applied along
any vector. The mechanism has proven to have excellent
resistance to vibration and shock. All our S relays are based
on this balanced armature mechanism, which is able to further
provide many other characteristics.
As a (polarized) balanced armature, the S relay armature
itself has two permanent magnets. Presenting four interfaces,
the armature has a 4-gap structure. As a result, the rotational
axis at either end of the armature is symmetrical and, in an
energized into a polarized state, the twin magnetic armature
interfaces are subject to repulsion on one side and attraction
on the other.
Our original mechanism provides a highly efficient polarized
magnetic circuit structure that is both highly sensitive and has
a small form factor. Moreover, suitability for provision with
many types of contact array and other advantages promise to
make it possible to provide many of the various characteristics
that are coming to be demanded of relays.
HOW IT WORKS (single side stable type)
1) When current is passed through the coil, the yoke becomes
magnetic and polarized.
2) At either pole of the armature, repulsion on one side and
attraction on the other side is caused by the interaction of the
poles and the permanent magnets of the armature.
3) At this time, opening and closing operates owing to the action
of the simultaneously molded balanced armature mechanism,
so that when the force of the contact breaker spring closes the
contact on one side, on the other side, the balanced armature
opens the contact (2 Form A 2 Form B).
Repulsion
Permanent magnet
Axis
Repulsion
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Attraction
Residual
plate
Attraction
Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
ORDERING INFORMATION (PART NO. : Ordering part number for Japanese market)
AG 3
60
Contact arrangement
2：2 Form A 2 Form B
3：3 Form A 1 Form B
4：4 Form A
Operating function
0：Single side stable
1：1 coil latching*
2：2 coil latching
Rated coil voltage（DC）
Part No.
1 2 3 4 7 9
Rated coil voltage（V） 3 6 12 24 48 5
* 1 coil latching type are manufactured by lot upon receipt of order.
ORDERING INFORMATION (TYPE NO. : Ordering part number for non Japanese market)
S
EB
Contact arrangement
2：2 Form A 2 Form B
3：3 Form A 1 Form B
4：4 Form A
Rated coil voltage（DC）
3, 5, 6, 12, 24, 48V
Operating function
Nil：Single side stable
L ：1 coil latching*
L2：2 coil latching
* 1 coil latching type are manufactured by lot upon receipt of order.
TYPES
" Type No. " is ordering part number for non Japanese market. " Part No. " is ordering part number for Japanese market.
Contact
arrangement
2 Form A 2 Form B
3 Form A 1 Form B
4 Form A
2 coil latching
Single side stable
Rated coil voltage
Type No.
Standard packing
Type No.
Part No.
Part No.
3 V DC
S2EB-3V
AG302160
S2EB-L2-3V
AG322160
5 V DC
S2EB-5V
AG302960
S2EB-L2-5V
AG322960
6 V DC
S2EB-6V
AG302260
S2EB-L2-6V
AG322260
12 V DC
S2EB-12V
AG302360
S2EB-L2-12V
AG322360
24 V DC
S2EB-24V
AG302460
S2EB-L2-24V
AG322460
48 V DC
S2EB-48V
AG302760
S2EB-L2-48V
AG322760
3 V DC
S3EB-3V
AG303160
S3EB-L2-3V
AG323160
5 V DC
S3EB-5V
AG303960
S3EB-L2-5V
AG323960
6 V DC
S3EB-6V
AG303260
S3EB-L2-6V
AG323260
12 V DC
S3EB-12V
AG303360
S3EB-L2-12V
AG323360
24 V DC
S3EB-24V
AG303460
S3EB-L2-24V
AG323460
48 V DC
S3EB-48V
AG303760
S3EB-L2-48V
AG323760
3 V DC
S4EB-3V
AG304160
S4EB-L2-3V
AG324160
5 V DC
S4EB-5V
AG304960
S4EB-L2-5V
AG324960
6 V DC
S4EB-6V
AG304260
S4EB-L2-6V
AG324260
12 V DC
S4EB-12V
AG304360
S4EB-L2-12V
AG324360
24 V DC
S4EB-24V
AG304460
S4EB-L2-24V
AG324460
48 V DC
S4EB-48V
AG304760
S4EB-L2-48V
AG324760
Inner
carton
Case
50 pcs.
500 pcs.
For the sockets, please refer to the “PC board sockets”.
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
RATING
Coil data
• Operating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are influenced by mounting conditions, ambient
temperature, etc.
Therefore, please use the relay within ±5% of rated coil voltage.
• ‘Initial’ means the condition of products at the time of delivery.
Single side stable
Rated coil
voltage
Release voltage*
(at 20°C)
Operate voltage*
(at 20°C)
Rated operating
current
(±10%, at 20°C)
3 V DC
66.7 mA
45 Ω
200 mW
5 V DC
38.5 mA
130 Ω
192 mW
6 V DC
33.3 mA
180 Ω
200 mW
16.7 mA
720 Ω
200 mW
8.4 mA
2,850 Ω
202 mW
5.6 mA
8,500 Ω
271 mW
12 V DC
24 V DC
Max. 70% V of
rated coil voltage
(Initial)
Min. 10% V of
rated coil voltage
(Initial)
48 V DC
Max. allowable
voltage
(at 40°C)
Rated operating
power
Coil resistance
(±10%, at 20°C)
180% V of rated
coil voltage
156% V of rated
coil voltage
*square, pulse drive
2 coil latching
Rated coil
voltage
Reset voltage*
(at 20°C)
Set voltage*
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Set coil
Reset coil
3 V DC
66.7 mA
66.7 mA
45 Ω
5 V DC
38.5 mA
38.5 mA
130 Ω
6 V DC
33.3 mA
33.3 mA
180 Ω
16.7 mA
16.7 mA
8.4 mA
8.4 mA
7.4 mA
7.4 mA
6,500 Ω
12 V DC
24 V DC
Max. 70% V of
rated coil voltage
(Initial)
Max. 70% V of
rated coil voltage
(Initial)
48 V DC
Set coil
Rated operating power
Reset coil
Set coil
Reset coil
45 Ω
200 mW
200 mW
130 Ω
192 mW
192 mW
180 Ω
200 mW
200 mW
720 Ω
720 Ω
200 mW
200 mW
2,850 Ω
2,850 Ω
202 mW
202 mW
6,500 Ω
355 mW
355 mW
Max. allowable
voltage
(at 40°C)
180% V of rated
coil voltage
135% V of rated
coil voltage
*square, pulse drive
Specifications
Item
Contact arrangement
Contact data
Specifications
2 Form A 2 Form B, 3 Form A 1 Form B, 4 Form A
Contact resistance (initial)
Max. 50 mΩ (by voltage drop 6 V DC 1 A)
Contact material
AgNi-AgSnO2 type, Au clad on double-layer contact
Contact rating (resistive)
4 A 250 V AC, 3 A 30 V DC
Max. switching power (resistive)
1,000 VA, 90 W
Max. switching voltage
250 V AC, 48 V DC
Max. switching current
4 A (AC), 3 A (DC) (30 to 48 V DC at less than 0.5 A)
Min. switching load
(reference value)*1
100 μA 100 mV DC
Insulation resistance (initial)
10,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength.)
Between open contacts
750 Vrms for 1 min (detection current:10 mA)
Between contact sets
1,000 Vrms for 1 min (detection current:10 mA)
Between contact and coil
1,500 Vrms for 1 min (detection current:10 mA)
Operate (Set) time
Max. 15 ms (Max. 15 ms) at rated coil voltage (at 20°C, without bounce)
Release (Reset) time
Max. 10 ms (Max. 15 ms) at rated coil voltage (at 20°C, without bounce, without diode)
Shock
resistance
Functional
490 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 μs)
Destructive
980 m/s2 (half-sine shock pulse: 6 ms)
Vibration
resistance
Functional
10 to 55 Hz (at double amplitude of 3 mm, detection time: 10 μs)
Destructive
10 to 55 Hz (at double amplitude of 4 mm)
Expected life
Mechanical life
Min. 100 × 106 ope. (switching frequency: at 50 times/min)
Conditions
Conditions for usage, transport
and storage*2
Ambient temperature: -55 to +65°C, Humidity: 5 to 85% RH (Avoid icing and condensation)
Dielectric
strength (initial)
Time
characteristics
(initial)
Unit weight
Approx. 8 g
*1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.
*2. For ambient temperature, please read “GUIDELINES FOR RELAY USAGE”.
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
Expected electrical life
Conditions: Resistive load, switching frequency at 20 times/min
Type
Switching capacity
Number of operations
2 Form A 2 Form B, 3 Form A 1 Form B,
4 Form A
3 A 30 V DC
Min. 200 × 103 ope.
4 A 250 V AC
Min. 100 × 103 ope.
REFERENCE DATA
1.Max. switching capacity
2.Switching life curve
Tested sample：S4EB-24V, 4 Form A
1,000
AC resistive load
DC resistive load
100
10
100
90
500
Temperature rise（℃）
No. of operations（×10 4）
Contact voltage（V）
1,000
3-1.Coil temperature characteristics
100
50
30
4A
70
60
0A
50
40
30
125V AC（cosφ=1.0)
250V AC（cosφ=1.0)
10
80
20
10
1
Contact current（A）
10
3-2.Coil temperature characteristics
0
Probability of failure（%）
Temperature rise（℃）
90
80
70
60
Coil operating power, 0.2W
30
2
3
4
5
Contact current（A）
10.0
5.0
2.0
1.0
0.5
0.1
6
1.2
20
m =1.6
μ：79 million time
σ：51 million time
95% reliability limit：
14.6 million times
（weibul probability paper）
0.2
1
0.4
0.6
0.8
1.0
Coil operating power（W）
Tested sample：S4EB-24V, 10pcs.
70.0
50.0
30.0
10
0.2
5.Operate and release time
(Single side stable)
99.9
99.0
95.0
20
0
0
3
4
5
Contact current（A）
Tasted sample：S4EB-24V, 10pcs.
Condition：1V DC, 1mA
Detection level：10Ω
100
40
2
4.Contact reliability test
Tested sample：S4EB-24V, 4 Form A
50
1
1.0
No. of operations（×10 7）
10.0
Operate and release time（ms）
0.1
18
16
14
12
Release time（with diode）
10
8
Min.
Operate time
6
4 Max.
Min.
2
0
Max.
80
Max.
Min.
Release time
100
120
140
Coil applied voltage（%V）
6.Influence of proximity mounting
＋30
(2)
(3)
(1)&(3)relays
are energized
Note：When installing an S-relay near another, and there is
no effect from an external magnetic field, be sure to
leave at least 10mm between relays in order to
achieve the performance listed in the catalog.
Single side stable
Rate of change（％）
Rate of change（％）
(1)
＋30
Release voltage
0
Operate voltage
‒30
5
Inter-relay distance(mm)
10
2 coil latching
0
Set, reset voltage
‒30
5
Inter-relay distance(mm)
10
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
Single side stable
Rate of change（％）
＋30
φ
Operate voltage
0
Release voltage
‒30
＋30
2 coil latching
50
G（Gaus）
50
G（Gaus）
DIMENSIONS
φ
Release voltage
Operate voltage
‒30
100
Set, reset voltage
Single side stable
0
＋30
0
‒30
Rate of change（％）
＋30
Rate of change（％）
Rate of change（％）
7.Influence of proximity mounting
50
G（Gaus）
2 coil latching
0
Set, reset voltage
‒30
100
100
50
G（Gaus）
100
Unit: mm
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
External dimensions
CAD
Schematic
(BOTTOM VIEW)
Single side stable
(De-energize)
2 Form A 2 Form B
12±0.5
1
7.62
0.3
3
Recommended PC board pattern
5
6
1
2
＋
－
－
11
10
9
8
12
7
2
3
4
5
1
－
1
2
9
3
4
12
11
5
6
1
2
－
9
8
7
3
4
5
6
10
9
8
7
5
6
4 Form A
－
10
9
－
7
＋
11
6
＋
8
＋
12
10
2
－
10
5
3 Form A 1 Form B
6
＋
11
4
－
11
＋
12
3
＋
4 Form A
2.54
2.54
4
3 Form A 1 Form B
General tolerance ±0.3
12ｰφ1.3
3
2 coil latching
(Reset)
2 Form A 2 Form B
＋
1
5.08
0.5
2
12
7.62
12±0.3
1
1.4
0.4
4
1
10±0.5
28±0.5
8
12
7
3
4
＋
－
11
10
9
8
7
Tolerance ±0.1
SAFETY STANDARDS
Each standard may be updated at any time, so please check our Website for the latest information.
UL (Approved)
CSA (Approved)
File No.
Contact rating
File No.
4 A 250 V AC
E43028
3 A 30 V DC
1
⁄20 HP 125 V AC (FLA 1.5 A)
1
⁄20 HP 250 V AC (FLA 0.75 A)
Contact rating
4 A 250 V AC
LR26550
3 A 30 V DC
1
⁄20 HP 125 V AC
1
⁄20 HP 250 V AC
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
GUIDELINES FOR USAGE
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Cautions for usage of S relays
• Based on regulations regarding insulation distance, there
is a restriction on same-channel load connections between
terminals No. 2, 3 and 4, 5, as well as between No. 8, 9 and
10, 11.
good
• Please note that when this relay (2 Form A 2 Form B type, 3
Form A 1 Form B type) operates and releases, N.O. and N.C.
may go ON at the same time
• If using under conditions in which the relay will be continually
powered, we recommend the latching type.
No good
23
23
45
11 10
98
2, 3 and 4, 5：
same channels,
therefore possible
●Between 10, 11 and 8, 9
：
same channels,
therefore possible
●Between
11 10
4 5
9
8
2, 3 and 4, 5：
different channels,
therefore not possible
●Between 10, 11 and 8, 9
：
different channels,
therefore not possible
●Between
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
PC board socket
TYPES
Product name
PC board socket
Type No.
Part No.
S - PS
AG3801
Standard packing
Inner carton
Outer carton
50 pcs.
500 pcs.
RATING
Item
Specifications
Dielectric strength (initial)
Each between terminals: 1,500 Vrms for 1 min (detection current: 10 mA)
Insulation resistance (initial)
Each between terminals: Min. 100 MΩ
(at 500 V DC, Measured portion is the same as the case of dielectric strength.)
Maximum carrying current
4A
Conditions for usage, transport and storage
Ambient temperature: -40 to +65°C
Humidity: 5 to 85% RH (Avoid icing and condensation)
DIMENSIONS
External dimensions
Unit: mm
Recommended PC board pattern
7.62
12.4±0.6
CAD
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
12ｰφ1.6
5.08 5.08 5.08 5.08 5.08
1.5
0.4
15.5±0.6
5.08
32.4±0.6
3.4
4.85
18.3±0.6
1.2
Tolerance ±0.1
7.62
1.5
General tolerance ±0.3
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
Power relays (Over 2 A) S RELAYS
HANDLING
Mounting method of relay
Removing method of relay
1) Match the direction of relay and socket.
1) Remove the relay, applying force
in the direction.
(Use your fingers to grab section
A and remove the relay.)
Rib
Match the direction and insert
Hook
2) Insert both ends of the
relay securely all the way
until both hooks engage.
A
2) In case there is not enough
space to grasp relay with
fingers, use screwdrivers
in the way as shown in the
figure.
Hook
3) Exercise care when removing relays. If greater than necessary
force is applied at the socket hooks, deformation may alter the
dimensions so that the hook will no longer catch, and other
damage may also occur.
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Panasonic Industry Co., Ltd. 2022
ASCTB207E 202204
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Precautions for Coil Input
Long term current carrying
A circuit that will be carrying a current continuously for long periods
without relay switching operation. (circuits for emergency lamps,
alarm devices and error inspection that, for example, revert only
during malfunction and output warnings with form B contacts)
Continuous, long-term current to the coil will facilitate deterioration
of coil insulation and characteristics due to heating of the coil itself.
For circuits such as these, please use a magnetic-hold type latching
relay. If you need to use a single stable relay, use a sealed type
relay that is not easily affected by ambient conditions and make a
failsafe circuit design that considers the possibility of contact failure
or disconnection.
DC Coil operating power
Steady state DC current should be applied to the coil. The wave
form should be rectangular. If it includes ripple, the ripple factor
should be less than 5%.
However, please check with the actual circuit since the electrical
characteristics may vary. The rated coil voltage should be applied to
the coil and the set/reset pulse time of latching type relay differs for
each relays, please refer to the relay's individual specifications.
Maximum allowable voltage and temperature rise
Proper usage requires that the rated coil voltage be impressed on
the coil. Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the coil may
burn or its layers short due to the temperature rise. Furthermore, do
not exceed the usable ambient temperature range listed in the
catalog.
Operate voltage change due to coil temperature rise
In DC relays, after continuous passage of current in the coil, if the
current is turned OFF, then immediately turned ON again, due to the
temperature rise in the coil, the operate voltage will become
somewhat higher. Also, it will be the same as using it in a higher
temperature atmosphere. The resistance/temperature relationship
for copper wire is about 0.4% for 1°C, and with this ratio the coil
resistance increases. That is, in order to operate of the relay, it is
necessary that the voltage be higher than the operate voltage and
the operate voltage rises in accordance with the increase in the
resistance value. However, for some polarized relays, this rate of
change is considerably smaller.
Coil connection
When connecting coils of polarized relays, please check coil polarity
(+,-) at the internal connection diagram (Schematic). If any wrong
connection is made, it may cause unexpected malfunction, like
abnormal heat, fire and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Ambient Environment
Usage, Transport, and Storage Conditions
Dew condensation
Condensation occurs when the ambient temperature drops suddenly
from a high temperature and humidity, or the relay is suddenly
transferred from a low ambient temperature to a high temperature
and humidity. Condensation causes the failures like insulation
deterioration, wire disconnection and rust etc.
Panasonic Industry Co., Ltd. does not guarantee the failures caused
by condensation.
The heat conduction by the equipment may accelerate the cooling
of device itself, and the condensation may occur.
Please conduct product evaluations in the worst condition of the
actual usage. (Special attention should be paid when high
temperature heating parts are close to the device. Also please
consider the condensation may occur inside of the device.)
Icing
Condensation or other moisture may freeze on relays when the
temperature become lower than 0°C.This icing causes the sticking
of movable portion, the operation delay and the contact conduction
failure etc. Panasonic Industry Co., Ltd. does not guarantee the
failures caused by the icing.
The heat conduction by the equipment may accelerate the cooling
of relay itself and the icing may occur. Please conduct product
evaluations in the worst condition of the actual usage.
Low temperature and low humidity
The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
High temperature and high humidity
Storage for extended periods of time (including transportation
periods) at high temperature or high humidity levels or in
atmospheres with organic gases or sulfide gases may cause a
sulfide film or oxide film to form on the surfaces of the contacts and/
or it may interfere with the functions. Check out the atmosphere in
which the units are to be stored and transported.
During usage, storage, or transportation, avoid locations subjected
to direct sunlight and maintain normal temperature, humidity and
pressure conditions.
Temperature/Humidity/Pressure
When transporting or storing relays while they are tube packaged,
there are cases the temperature may differ from the allowable
range. In this case be sure to check the individual specifications.
Also allowable humidity level is influenced by temperature, please
check charts shown below and use relays within mentioned
conditions. (Allowable temperature values differ for each relays,
please refer to the relay's individual specifications.)
1) Temperature:
The tolerance temperature range differs for each relays, please
refer to the relay’s individual specifications
2) Humidity: 5 to 85 % RH
3) Pressure: 86 to 106 kPa
Humidity (％ RH)
85
Allowable range
Avoid icing
when used at
temperatures
lower than 0°C
Avoid con
densation when
used at tem
peratures higher
than 0°C
5
40
0
Ambient temperature (℃)
85
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Panasonic Industry Co., Ltd. 2022
ASCTB412E 202204
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
Package
In terms of the packing format used, make every effort to keep the
effects of moisture, organic gases and sulfide gases to the absolute
minimum.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone filling materials etc.) is used
around the relay, the silicone gas (low molecular siloxane etc.) may
be produced.
This silicone gas may penetrate into the inside of the relay. When
the relay is kept and used in this condition, silicone compound may
adhere to the relay contacts which may cause the contact failure.
Do not use any sources of silicone gas around the relay (Including
plastic seal types).
NOx Generation
When relay is used in an atmosphere high in humidity to switch a
load which easily produces an arc, the NOx created by the arc and
the water absorbed from outside the relay combine to produce nitric
acid.
This corrodes the internal metal parts and adversely affects
operation.
Avoid use at an ambient humidity of 85%RH or higher (at 20°C). If
use at high humidity is unavoidable, please contact our sales
representative.
Others
Cleaning
• Although the environmentally sealed type relay (plastic sealed type,
etc.) can be cleaned, avoid immersing the relay into cold liquid (such
as cleaning solvent) immediately after soldering. Doing so may
deteriorate the sealing performance.
• Cleaning with the boiling method is recommended(The temperature
of cleaning liquid should be 40°C or lower ).
Avoid ultrasonic cleaning on relays. Use of ultrasonic cleaning may
cause breaks in the coil or slight sticking of the contacts due to
ultrasonic energy.
Please refer to "the latest product specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー 10 ー
Panasonic Industry Co., Ltd. 2022
ASCTB412E 202204
Electromechanical Control Business Division
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
industral.panasonic.com/ac/e/
©Panasonic Industry Co., Ltd. 2022
Specifications are subject to change without notice.
ASCTB207E 202204
2022.4
工商网监
湘ICP备2023018690号
