EV (AEV)
Capsule contact
mechanism and
high-capacity cut-off
compact relay
10A
20A
80A
120A
200A
300A
EV RELAYS (AEV)
FEATURES
TYPICAL APPLICATIONS
1. Compact and lightweight
Charged with hydrogen gas for high arc
cooling capacity, short gap cutoff has
been achieved at high DC voltages.
2. Safety
High safety achieved with construction
that prevents explosions by keeping the
arc from leaking.
3. High contact reliability
Since the contact portion is sealed in
hydrogen gas, there is no contact
oxidation. The relay is also dustproof.
High DC voltage applications such as
• Electric vehicle
• Hybrid vehicle
• Fuel-cell vehicle
• Battery charge and discharge
systems
• Construction equipment
ORDERING INFORMATION
AEV
0
Contact arrangement
1: 1 Form A (Screw terminal, 10A TM, with terminal protection cover)
5: 1 Form A (20A TM type)
Contact rating
1: 10 A
2: 20 A
8: 80 A
4: 120 A
7: 200 A
9: 300 A
Coil voltage
12: 12V DC
24: 24V DC
Coil terminal structure
Nil: Plug-in (Faston) (for 20 A type), Connector (for 80 A, 120 A and 300 A), Lead wire (for 200 A)
2: Plug-in (Faston) (for 10 A type with terminal protection cover)
ds_61213_en_ev: 190313D
1
EV (AEV)
TYPES
Type
10 A
20 A
80 A
120 A
200 A
300 A
10 A
80 A
120 A
200 A
300 A
Nominal coil voltage
Contact arrangement
12 V DC
1 Form A
24 V DC
1 Form A
Part number
AEV110122
AEV52012
AEV18012
AEV14012
AEV17012
AEV19012
AEV110242
AEV18024
AEV14024
AEV17024
AEV19024
Standard packing; Carton: 25pcs. Case: 100pcs (for 10 A type)
Carton: 25pcs. Case: 50pcs (for 20 A type)
Carton: 1pc. Case: 20pcs (for 80 A type)
Carton: 1pc. Case: 20pcs (for 120 A type)
Carton: 1pc. Case: 10pcs (for 200 A type)
Carton: 1pc. Case: 5pcs (for 300 A type)
RATING
1. Coil data
Pick-up voltage
(at 20C 68F)
Max. 9 V DC
Max. 9 V DC
Max. 9 V DC
Max. 9 V DC
Max. 9 V DC
Drop-out voltage
(at 20C 68F)
Min. 1 V DC
Min. 0.5 V DC
Min. 1 V DC
Min. 1 V DC
Min. 1 V DC
Nominal operating current
[10%] (at 20C 68F)
0.103 A
0.327 A
0.353 A
0.353 A
0.500 A
300 A
Max. 9 V DC
Min. 2 V DC
3.2 A (Inrush)
10 A
80 A
120 A
200 A
Max. 18 V DC
Max. 18 V DC
Max. 18 V DC
Max. 18 V DC
Min. 2 V DC
Min. 2 V DC
Min. 2 V DC
Min. 2 V DC
0.052 A
0.176 A
0.176 A
0.250 A
Max. 18 V DC
Min. 4 V DC
1.85 A (Inrush)
Type
10 A
20 A
80 A
120 A
200 A
300 A
2
Nominal coil
voltage
12 V DC
24 V DC
Nominal operating power
(at 20C 68F)
1.24 W
3.9 W
4.2 W
4.2 W
6.0 W
37.9 W (Inrush, approx. 0.1 sec.)
3.6 W (Stable)
1.24 W
4.2 W
4.2 W
6.0 W
44.4 W (Inrush, approx. 0.1 sec.)
3.8 W (Stable)
Max. applied
voltage
16 V DC
32 V DC
ds_61213_en_ev: 190313D
EV (AEV)
2. Specifications
Characteristics
Item
Specifications
80A type
120 A type
1 Form A
10A type
20A type
10A 400V DC
20A 400V DC
80A 400V DC
15A 2min,
30A 30sec
(2mm2)
40A 10min,
60A 1min (3mm2)
120A 15min,
180A 2min
(15mm2)
120A 400V DC
(Carry current)
225A 3min,
400A 30sec.
(38mm2)
1A 12V DC*1
1A 12V DC*1
1A 12V DC*1
—
—
800A 300V DC
(Min. 1 cycle)*2, 5
Overload opening/closing
rating*5
30A 400V DC
(Min. 50
cycles)*2, 5
60A 400V DC
(Min. 50
cycles)*2, 5
120A 400V DC
(Min. 50
cycles)*2, 5
Reverse direction cut-off*5
—
—
Max. 0.5V
(By voltage drop
6 V DC 10A)
Max. 0.2V
(By voltage drop
6 V DC 20A)
Contact arrangement
Nominal switching capacity
(resistive load)
Short term current
Min. switching capacity
(resistive load)*1
Max. cut-off current*5
Contact rating
Contact voltage drop (Initial)
Insulation resistance (Initial)
Breakdown
voltage
(Initial)
Electrical
characteristics
–120A 200V DC
(Min. 50
cycles)*2, 5
Max. 0.067V
(By voltage drop
6 V DC 20A)
200 A type
300 A type
200A 400V DC
300A 400V DC
300A 15min,
(60mm2)
400A 10min,
600A 1min.
(100mm2)
1A 12V DC*1
1A 12V DC*1
1A 24V DC*1
1,200A 300V DC
(Min. 1 cycle)*2, 5
800A 300V DC
(Min. 5 cycles)*2, 5
120A 400V DC
(Min. 50
cycles)*2, 5
–120A 200V DC
(Min. 50
cycles)*2, 5
Max. 0.03V
(By voltage drop
6 V DC 20A)
2,000A 350V DC
(Min. 1 cycle)*2, 5
2,500A 300V DC
(Min. 3 cycles)*3, 5
—
600A 400V DC
(Min. 300 cycles)
–200A 200V DC
(Min. 1,000
cycles)*2, 5
Max. 0.1V
(200 A Carry
current)
Min. 100M (at 500 V DC, Measurement at same location as “Initial breakdown voltage” section.)
Between open
contacts
Between
contact and coil
2,500Vrms/min. (Detection current: 10mA)
2,500Vrms/min. (Detection current: 10mA)
Operate time (at 20C 68F)
Max. 50ms
(Nominal coil voltage applied to the coil, excluding contact bounce time.)
Release time (at 20C 68F)
Max. 30ms
(Nominal coil voltage applied to the coil, without diode.)
Max. 10ms
(Nominal coil
voltage applied to
the coil, without
diode.)
Functional
Min. 196m/s2 {20
G} (Half-wave
pulse of sine
wave: 11ms;
detection time:
10s)
Destructive
Mechanical
characteristics
For ON: Min. 196m/s2 {20 G} (Half-wave pulse of sine wave: 11ms; detection time: 10s)
For OFF: Min. 98m/s2 {10 G} (Half-wave pulse of sine wave: 11ms; detection time: 10s)
Min. 490 m/s2 {50 G} (Half-wave pulse of sine wave: 6ms)
Functional
10 to 200 Hz, Min.43 m/s2 {4.4 G} (Detection time: 10s)
Destructive
10 to 200 Hz, Min.43 m/s2 {4.4 G}
(Time of vibration for each direction; X, Y, Z direction: 4 hours)
10 to 200 Hz,
Min. 44 m/s2
{4.5 G} (Detection
time: 10s)
10 to 200 Hz,
Min. 44 m/s2
{4.5 G} (Time of
vibration for each
direction; X, Y, Z
direction: 4 hours)
Vibration
resistance
Mechanical
Conditions
Max. 0.06V
(300 A Carry
current)
Max. 30ms
(Nominal coil
voltage applied to
the coil, excluding
contact bounce
time.)
Shock
resistance
Expected life
–300A 200V DC
(Min. 100 cycles)
Electrical (resistive load)
Conditions for operation,
transport and storage
Mass (Approx.)
Min. 105
10A 400V DC
Min. 75,000*2
20A 400V DC
Min. 3,000*2
80A 400V DC
Min. 1,000*2
Min. 2105
30A 400V DC
Min. 3,000*2
Ambient temperature:
–40 to +80C –40 to +176F (Storage: Max. 85C 185F),
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
90 g 3.17 oz
180 g 6.35 oz
400 g 14.11 oz
400 g 14.11 oz
200A 400V DC
Min. 3,000*2
300A 400V DC
Min. 1,000
Ambient temperature:
–40 to +85C –40 to +185F
(Storage: Max.85C 185F),
Humidity: 5 to 85% R.H. (Not freezing
and condensing at low temperature)
600 g 21.16 oz
750 g 26.46 oz
Notes:
*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. The electrical load performance value for the 10A, 20A, 80A, 120A and 200A types applies when a varistor is connected in parallel to the coil. Please be warned that
working life will be reduced when a diode is used.
*3. Condition: Nominal switching 10 cycles, each cut-off 2,500 A
*4. The coil voltage 12 V DC type and 24 V DC type have the same specifications.
*5. at L/R 1ms
*6. Refer to “6. Usage, Storage and Transport Conditions“ in AMBIENT ENVIRONMENT section in Relay Technical Information.
ds_61213_en_ev: 190313D
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EV (AEV)
REFERENCE DATA
1.-(1) Ambient temperature characteristics
(10 A type)
1.-(2) Ambient temperature characteristics
(20 A type)
1.-(3) Ambient temperature characteristics
(80 A type)
Sample: EV relay 10 A, 3 pcs.
Sample: EV relay 20 A, 3 pcs.
Sample: EV relay 80 A, 3 pcs.
X
X
20
Ambient
10
temperature, °C
-20
0
-40
40
20
40
Variation
ratio, %
30
Variation
ratio, %
Variation
ratio, %
40
Drop-out
voltage
30
Pick-Up
voltage
20
30
20
Drop-out
voltage
Ambient
10
temperature, °C
-20
0
-40
Ambient
10
temperature, °C
-20
0
-40
Drop-out
voltage
60
80
40
40
20
60
20
80
-10
-10
-10
Pick-Up -20
voltage
-30
-20
-30
Pick-Up -20
voltage
-30
-40
-40
-40
40
60
80
1.-(6) Ambient temperature characteristics
(300 A type)
Sample: EV relay 120 A, 3 pcs.
Sample: EV relay 200 A, 3 pcs.
Sample: EV relay 300 A, 3 pcs.
Drop-out
voltage
30
Pick-Up
20 voltage
40
Drop-out voltage
30
40
Pick-Up
Drop-out voltage
20 voltage
30
20
Ambient
temperature, °C
-20
0
-40
Ambient
10
temperature, °C
-20
0
-40
40
20
50
Variation
ratio, %
40
Variation
ratio, %
1.-(5) Ambient temperature characteristics
(200 A type)
Variation
ratio, %
1.-(4) Ambient temperature characteristics
(120 A type)
60
Ambient
10
temperature, °C
10
Pick-Up voltage
20
80
40
60
80
-20
-40
0
-10
-10
-20
-20
20
40
60
80
-10
-20
-30
-30
-50
2. Max. value for switching capacity
When 400 V DC resistive load
-40
3. Switching life curve (Forward direction)
When 400 V DC resistive load
1000
80 A type
200 A type
Life, cycle
80 A type
120 A type
10
20 A type
300 A type
100
120 A type,
400 V DC
resistive load
(for Min. 600 A,
300 V DC)
300 A type,
400 V DC resistive load
(for Min. 900 A,
300 V DC)
120 A type
10
10 A type
10 A type
1
1
1000
100
20 A type
10
Life, cycle
200 A type
10000
100
4. Cut-off life curve (Forward direction)
1000
100000
300 A type
Contact current, A
-30
-40
-40
10
100
Contact voltage, V
1000
1
80 A type,
400 V DC resistive load
(for Min. 600 A,
300 V DC)
1
10
100
Contact current, A
1000
1
100
200 A type,
400 V DC resistive load
(for Min. 900 A, 350 V DC)
1000
Cut-off current, A
10000
5. Carrying performance curve (80C 176F)
*For 300 A, at 85C 185F
105
80 A type
120 A type
300 A type
Time, sec
104
10 A type
1000
100
200 A type
10
1
4
20 A type
10
100
1000
Carrying current, A
ds_61213_en_ev: 190313D
EV (AEV)
DIMENSIONS (mm inch)
CAD Data
Data from our Web site.
Download CAD
1. 10 A type
CAD Data
Schematic (TOP VIEW)
1-Load input terminal (+)
#187 tab, 0.5t
5:Coil
1 (+)
66.8 2.630
55.9±0.3 2.201±.012
45 1.772
19.6 .772
8.6
.339
2 (−)
6:Coil
Load side has polarities (+) and (−)
5
1
11.3±0.3
.445±.012
5-Coil terminal (No polarity)
#187 tab, 0.5t
6
4.5±0.2 dia.
.177±.008 dia.
2
Mounting dimensions
Mounting hole:
2-4.2±0.1 dia.
2-.165±.004 dia.
14.1±0.3
.555±.012
2-Load input terminal (–)
#187 tab, 0.5t
6-Coil terminal (No polarity)
#187 tab, 0.5t
0.4
.016
31.7
1.248
55.9±0.1
2.201±.004
49.7
Max. 45 45.5 1.957
1.772 1.791
19.5
.768
31.6
1.244
37.9
1.492
5.7
.224
General tolerance;
less than 10 .394:
0.3 .012
10 to 50 .394 to 1.969: 0.6 .024
more than 50 1.969: 1.0 .039
2. 20 A type
Schematic (TOP VIEW)
CAD Data
78.0
3.071
64.0
2.520
1-Load input terminal (+)
#250 tab, 0.8t
22.5
.886
2-Load input terminal (–)
#250 tab, 0.8t
Coil terminal (No polarity)
#250 tab, 0.8t
19.0 40.0
.748 1.575
9.2
.362
22.8
.898
50.0
1.969
2-6 dia.
2-.236 dia.
1 (+)
Coil
2 (−)
Coil
Load side has polarities (+) and (−)
Mounting dimensions
11.1
.437
5.8
.228
Mounting hole:
2-6.0±0.2 dia.
2-.236±.008 dia.
37.0±1.0
1.457±.039
64.0±0.1
2.520±.004
General tolerance;
less than 10 .394:
0.3 .012
10 to 50 .394 to 1.969: 0.6 .024
more than 50 1.969: 1.0 .039
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EV (AEV)
3. 80 A type
Schematic (TOP VIEW)
CAD Data
15.9
.626
(Bus bar width)
57.9 2.280
(Both ends of bus bar)
44.9 1.768
(M5 bolt pitch)
2 (−)
(17.9)
(.705)
7
.276
1 (+)
8.0 dia.
.315 dia.
(Flat washer)
7.3
.287
-
Coil
+
26.0
1.024
Coil
2
.079
2-Load input bus bar (−)
Mounting dimensions
1-Load input bus bar (+)
7.3
.287 63.5
2.500
2-6.0 dia.
2-.236 dia.
Connector part number: 7282-1020 (Yazaki)
(Supplement) Harness side female
connector part number: 7283-1020 (*Note)
M5 bolt
(M4)
Mounting hole:
2-6.0±0.2 dia.
2-.236±.008 dia.
26.0±0.2
1.024±.008
10
.394
63.5±0.2
2.500±.008
75.0 79.0
2.953 3.110
24
.945
69.0
2.717
General tolerance;
less than 10 .394:
0.3 .012
10 to 50 .394 to 1.969: 0.6 .024
more than 50 1.969: 1.0 .039
12
.472
45 1.772
(Connector position)
Collar height: 5.7
.224
40.0
1.575
75.5
2.972
*Note: Separate connection of the terminal and lead wire is required.
4. 120 A type
Schematic (TOP VIEW)
CAD Data
16.0 .630
(Bus bar width)
7
.276
61.9 2.437
(Both ends of bus bar)
44.9 1.768
(M6 bolt pitch)
(17.9)
(.705)
2 (−)
1 (+)
8.0 dia. (Flat washer)
.315 dia.
7.3
.287
26.0
2
1.024 .079
Coil
Coil
Load side has polarities (+) and (−)
2-Load input bus bar (−)
2-6.0 dia.
2-.236 dia.
7.3
.287 63.5
2.500
(M4)
1-Load input bus bar (+)
Connector part number:
7282-1020 (Yazaki)
(Supplement)
Harness side female connector
part number: 7283-1020 (*Note)
M6 bolt
10.0±0.6
.394±.024
Mounting hole:
2-6.0±0.2 dia.
2-.236±.008 dia.
26.0±0.2
1.024±.008
75.0 80.0
2.953 3.150
24
.945
70.0
2.756
12
.472
Collar height:
5.7
.224
Mounting dimensions
45
1.772
(Connector position)
75.5
2.972
40.0
1.575
63.5±0.2
2.500±.008
General tolerance;
less than 10 .394:
0.3 .012
10 to 50 .394 to 1.969: 0.6 .024
more than 50 1.969: 1.0 .039
*Note: Separate connection of the terminal and lead wire is required.
6
ds_61213_en_ev: 190313D
EV (AEV)
5. 200 A type
CAD Data
External dimensions
95.0
82.0
67.0
54.0
27.0
3.740
3.228
2.638
2.126
1.063 (2.1)
(.083)
(2.0)
(.079)
1 (+)
2 (−)
Coil
Coil connection lead wire
(No polarity)
Coil
>PBT-GF30 FR(17)<
45.0 31.0 28.2
1.772 1.220 1.110
Schematic (TOP VIEW)
Load side has polarities (+) and (−)
Mounting dimensions
2×6.0 dia.
2×.236 dia.
Mounting hole:
2×6.0±0.2 dia.
2×.236±.008 dia.
2-Load input terminal (−)
31.0±0.2
1.220±.008
1-Load input terminal (+)
M6
(Threaded portion: Min. 8 .315)
82.0±0.2
3.228±.008
86.4
3.402
75.0
2.953
200±20
7.874±.787
0.5
.020
General tolerance;
less than 10 .394:
0.3 .012
10 to 50 .394 to 1.969: 0.6 .024
more than 50 1.969: 1.0 .039
5.7
.224
(Collar height)
*Note: Separate connection of the terminal and lead wire is required.
6. 300 A type
CAD Data
External dimensions
Schematic (TOP VIEW)
111 4.370
92 3.622
86 3.386
79±0.3 3.110±.012
44 1.732
27 1.063
1-Load input bus bar (+)
1+
1 (+)
2 (−)
2-Load input bus bar (−)
2-
6:Coil (GND)
5:Coil (V+)
63
60
47±0.3
27
2.480 2.362 1.850±.012 1.063
5
6
Load side has polarities (+) and (−)
Mounting dimensions
3x6±0.3 dia.
3x.236±.012 dia.
6-Coil terminal (GND)
5 - Coil terminal (V+)
Connector part number: 7282-1020 (Yazaki)
(Supplement) Harness side female
connector part number: 7283-1020 (*Note)
Mounting hole:
3x6.0±0.2 dia.
3x.236±.008 dia.
47.0±0.2
1.850±.008
M8 bolt
M8 Flange nut
24.5
.965
(13)
(.512)
3
.118
48.7
39.3 1.917
1.547
5.7
.224
73.4 74.7
61.7 2.890 2.941
2.429
79.0±0.2
3.110±.008
General tolerance;
less than 10 .394:
10 to 50 .394 to 1.969:
more than 50 1.969:
more than 100 3.937:
0.3 .012
0.6 .024
1.0 .039
1.6 .063
*Note: Separate connection of the terminal and lead wire is required.
ds_61213_en_ev: 190313D
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EV (AEV)
NOTES
1. Usage, transport and storage conditions
1) Temperature: –40 to +80C –40 to +176F
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.
3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for usage, transport, and
storage
Humidity, %RH
4. Electrical life
This relay is a high-voltage direct-current switch. In its final
breakdown mode, it may lose the ability to provide the proper
cut-off. Therefore, do not exceed the indicated switching
capacity and life. (Please treat the relay as a product with limited
life and replace it when necessary.)
In the event that the relay loses cut-off ability, there is a
possibility that burning may spread to surrounding parts, so
configure the layout so that the power is turned off within one
second.
85
Tolerance range
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F)
5
–40
–40
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
0
+32
80
+176
Temperature, °C °F
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. When installing the relay, always use washers to prevent
the screws from loosening.
• Regarding the torque value for contact terminal, it is intended
that secure an electrical connection stability by getting enough
contact pressure (Axial force) of fixing part.
Therefore, please do not use the screw (a bolt and a nut)
preventing looseness needing running torque (Prevailing torque
type and Self lock type) because enough tightening force in axial
direction may not be secured.
In addition, there is high possibility that a case of a relay may be
broken if users use the nut for EV80A and EV120A.
Because excessive torque is applied to a case of a relay before
generation of contact pressure. (Axial force).
• Regarding the torque value for the main body of a relay, please
use suitable screw on own verification.
3. Condition of tightening screw
Tighten each screw within the rated range given below.
Exceeding the maximum torque may result in breakage.
Mounting is possible in either direction.
• M4 screw (for 10A type): 1.8 to 2.7 N·m
• M5 screw (for 20A, 80A, 120A, 200A and 300A types): 3 to 4
N·m
• M5 (for 80A type): 3 to 4 N·m
• M6 (for 120A and 200A types): 6 to 8 N·m
• M8 (for 300A type): 10 to 12 N·m
5. Permeation life of internal gas
This relay uses a hermetically encased contact (capsule
contact) with gas inside. The gas has a permeation life that is
affected by the temperature inside the capsule contact (ambient
temperature + temperature rise due to flow of electrical current).
For this reason, make sure the ambient operating temperature is
between –40 and 80C –40 and +176F (200A and 300A types:
Max. 85C 185F), and the ambient storage temperature is
between –40 and 85C –40 and +185F.
6. The coils (300 A type) and contacts (all type) of the relay
are polarized, so follow the connection schematic when
connecting the coils and contacts.
Type 300 A contains a reverse surge voltage absorption circuit;
therefore a surge protector is not needed.
7. For the 300 A type, drive the coil with a quick startup.
(Built-in one-shot pulse generator circuit)
8. After the ON signal enters the 300A type, automatic coil
current switching occurs after approximately 0.1 seconds.
Do not repeatedly turn it OFF within that 0.1 seconds
interval, as doing so may damage the relay.
9. Be careful that foreign matter and oils and fats kind don’t
stick to the main terminal parts because it is likely to cause
terminal parts to give off unusual heat.
Also, please use the following materials for connected
harnesses and bus bars.
10A type: Min. 2 mm2 nominal cross-sectional area
20A type: Min. 3 mm2 nominal cross-sectional area
80A type: Min. 15 mm2 nominal cross-sectional area
120A type: Min. 38 mm2 nominal cross-sectional area
200A type: Min. 60 mm2 nominal cross-sectional area
300A type: Min. 100 mm2 nominal cross-sectional area
10. As a guide, the insertion strength of the plug-in terminal
into the relay tab terminal should be 40 to 70N (10A type), 40
to 80N (20A type). Please select a plug-in terminal (flat
connection terminal) which comply with JIS C2809-1999.
10A type: for plate thickness 0.5mm and #187 tab terminal
20A type: for plate thickness 0.8mm and #250 tab terminal
11. Avoid excessive load applied to the terminal in case of
installing such as a bus bar etc., Because it might adversely
affect the opening and closing performance.
12. Use the specified connector for the connector terminal
connection (80A, 120A and 300A)
Yazaki Corporation 7283 – 1020 or equivalent
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13. Cautions for use
1) Regarding cautions for use and explanation of technical
terms, please refer to our “Relay Technical Information”.
2) Additionally the ambient temperature and condition for your
application should be considered because pick-up and dropout 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 sufficient
cutoff performance cannot be guaranteed. Please avoid
such usage.
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)
12V
Relay
coil
ZD18V
ZD18V Zener Voltage Clamp
voltage
D
ZD18V Zener Voltage
12V
ZD30V Zener Voltage
30V-12V=18V
Relay
coil
Clamp
voltage
ZD30V
ZD30V Zener Voltage
4) Lifetime is specified under the standard test conditions in JIS
C 5442. (temperature 15 to 35C 59 to 95F, 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 confirm 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 fixing 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 fields (near a
transformer or magnet) or close to an object that radiates
heat.
11) If the several relays are mounted closely or a heatgeneration 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 flow, and applying a coil voltage higher
than the rated operating voltage (quick start).
14) In case using a capacitive load (C-load), please take a
countermeasure as pre-charging to the capacitive load so
that the inrush current will not surpass 60A.
The relay might have a contact welding without such
countermeasure.
15) If the relay is used for an inductive load (L load) such that
L/R > 1ms, add surge protection in parallel with the inductive
load. If this is not done, the electrical life will decrease and
cut-off failure may occur.
16) Use the suitable wire for wire at the load side according to
the current. If the wire diameter is small, the maximum rated
contact current cannot be guaranteed.
(Ex.) Carrying current; 60A: diameter of 15mm2 or more
17) Take care to disconnect to the power supply when wiring.
18) Do not switch the contacts without any load as the contact
resistance may become increased rapidly.
19) The relay satisfies the protection level of JIS D 0203 R2 (of
waterproof). Please take any countermeasures additionally if
it should be installed in the place where higher protection
level is required.
20) Do not use this product in such atmosphere where any kind
of organic solvent (as benzene, thinner and alcohol) and the
strong alkali (as ammonia and caustic soda) might be
adhered to this product.
21) Be careful that foreign matter and oils and fats kind don’t
stick to the main terminal parts because it is likely to cause
terminal parts to give off unusual heat.
22) Do not make additional manufacturing upon the relay
housing.
23) For AC shutoff these is no contact polarity, but confirm the
electric life using the actual load.
For Cautions for Use, see Relay Technical Information.
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