© Panasonic Corporation 2019
1
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2019.03
ORDERING INFORMATION
TYPICAL APPLICATIONS
FEATURES
EP RELAYS (AEP)
200A type has been added.
High Capacity of Max.
1,000 V DC Cut-o󰀨 Possible
1. High-voltage, high-current control
capable
1,000V DC switching has been achieved
thanks to a sealed construction with
mixed hydrogen gas and the magnetic
arc motion through use of a permanent
magnet.
2. Compact & Low Operating Sound
By using a capsule contact mechanism
that is enclosed with hydrogen gas,
highcapacity cuto󰀨 is possible even with
a tiny contact gap. There is little operating
sound, which does not change even
when large currents are cut o󰀨.
3. Arc space unnecessary
The enclosure box can be made smaller
thanks to an arc-space-free construction
from which the arc will not get out.
4. Safety
Since the contacts are enclosed in a
sealed capsule structure, the arc will not
get out, which ensures safety.
5. High contact reliability
The contact part is hermetically sealed
with H2 mixed gas, hence the contact
resistance remains stable regardless of
the ambient conditions.
6. Mounting direction is not specied
The weight of the movable parts is light,
and also the restoring force is large,
hence the relay is relatively una󰀨ected by
gravity.
7. Wide selection of models available
Types include PC board type (10A),
TM type (10A and 20A), Lead wire type
(200A) and Connector type (80A and
300A).
8. Standard compliance
The 10A, 20A, 80A type is UL/C-UL
standard certied.
1. Photovoltaic power generation
systems
2. Cogeneration systems
3. Construction machinery
4. Welding equipment
5. Battery charge and discharge
control
6. AGV (Automatic guided vehicle)
(Unmanned transport carts)
7. Inverter control
8. Elevator, etc.
10A PC board type 10A TM type 20A TM type
80A type
200A type
300A type
Protective construction：Sealed capsule type
AEP 0
Contact arrangement
1：1 Form A
3：1 Form A PC board type
＊1
5：1 Form A TM type
＊2
Contact capacity
1：10A
2：20A
7：200A
8：80A
9：300A
Nominal coil voltage
（DC）
12：12V
24：24V
48：48V
＊1
X0：100V
＊1
Notes：
＊1. 10A type only
＊2. 10A and 20A types only
10A and 80A types are UL/C-UL recognized. 20A type is UL recognized.
(10A and 80A types)
*20A type: only UL (Recognized)
Automation Controls Catalog
EP (AEP)
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© Panasonic Corporation 2019 ASCTB3E 201903
TYPES
RATING
1.Coil data
• Operating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are inuenced 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.
Type Nominal coil voltage Contact arrangement Part No.
10A PC board type
12V DC
1 Form A
AEP31012
10A TM type AEP51012
20A TM type AEP52012
80A Connector type*1AEP18012
200A Lead wire type*2AEP17012
300A Connector type*1AEP19012
10A PC board type
24V DC
AEP31024
10A TM type AEP51024
20A TM type AEP52024
80A Connector type*1AEP18024
200A Lead wire type*2AEP17024
300A Connector type*1AEP19024
10A PC board type 48V DC AEP31048
10A TM type AEP51048
10A PC board type 100V DC AEP310X0
10A TM type AEP510X0
Standard packing: 10A: Carton: 25 pcs.; Case: 100 pcs.
20A: Carton: 25 pcs.; Case: 50 pcs.
80A: Carton: 1 pc.; Case: 20 pcs.
200A: Carton: 1 pc.; Case: 10 pcs.
300A: Carton: 1 pc.; Case: 5 pcs.
Notes: *1. One female connector lead wire for connecting is packaged with the 80A and 300A connector types.
-Specications: Housing: Yazaki 7283-1020 (light gray); Lead wire: 0.5 mm2 dia. and 300±10 mm 11.811± .394 inch length
Lead wire coating color: Pin No. 1: white; Pin No. 2: green
*2. Two dedicated M6 bolts is packaged with the 200A type.
Type Nominal coil voltage Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
Nominal coil current
[±10%] (at 20°C
68°F)
Nominal operating power
(Nominal voltage applied to
the coil, at 20°C 68°F)
Max. applied voltage
10A
12V DC
75%V or less of
nominal voltage
(Initial)
8.3%V or more of
nominal voltage
(Initial)
0.103A 1.24W
133%V of
nominal voltage
20A
4.17%V or more of
nominal voltage
(Initial)
0.327A 3.9W
80A
8.3%V or more of
nominal voltage
(Initial)
0.353A 4.2W
200A
8.3%V or more of
nominal voltage
(Initial)
0.5A 6W
300A
16.7%V or more
of nominal voltage
(Initial)
3.3A
When input: 40 W max.
(0.1 sec. from time of input)
When retained: 4 W max.
10A
24V DC
8.3%V or more of
nominal voltage
(Initial)
0.052A 1.24W
20A
4.17%V or more of
nominal voltage
(Initial)
0.163A 3.9W
80A
8.3%V or more of
nominal voltage
(Initial)
0.176A 4.2W
200A
8.3%V or more of
nominal voltage
(Initial)
0.25A 6W
300A
16.7%V or more of
nominal voltage
(Initial)
1.85A
When input: 45 W max.
(0.1 sec. from time of input)
When retained: 4 W max.
10A 48V DC 8.3%V or more of
nominal voltage
(Initial)
0.026A
1.24W
10A 100V DC 0.012A
Notes: 1. When using a DC power supply, use one that provides a current capacity leeway of at least 150% of the nominal coil current.
2. The 300A type has a built-in coil current switching circuit. After the nominal coil voltage is applied, it automatically switches in approximately 0.1 seconds.
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2. Specications
Notes: *1. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value.
Refer to Usage, transport and storage conditions in NOTES.
*2. Conditions: Varistor used for coil surge absorption. Note: if a diode is used the life will be lower.
*3. Condition: Switches rated number of 10 cycles each time there is a 2,500A cut-o󰀨.
*4. Please refer to the reference data on the following page for switching and cut-o󰀨 at 400 V DC and higher.
*5. Coil holding voltage is the coil voltage after 100 ms following application of the nominal coil voltage.
Characteristics Item Specications
10A type 20A type 80A type 200A type 300A type
Rating
Contact arrangement 1 Form A
Nominal switching capacity
(Resistive load) 10A 400V DC 20A 400V DC 80A 400V DC 200A 400V DC 300A 400V DC
Max. contact allowance voltage 1,000V DC
Short term current
(Diameter of connection
harness)
15A 3min (2mm2) 30A
30s (2mm2)
40A 10min (3mm2)
60A 1min (3mm2)120A 15min (15mm2) 300A 15min (60mm2)400A 10min
(100mm2)
Max. cut-o󰀨 current — — 800A 300V DC
(1 cycle)*2
2,000A 350V DC
(1 cycle)*2
2,500A 300V DC
(3 cycles)*3
Overload cut-o󰀨 rating 30A 400V DC
(Min. 50 cycles)*2
60A 400V DC
(Min. 50 cycles)*2
120A 400V DC
(Min. 50 cycles)*2—600A 400V DC
(Min. 300 cycles)
Reverse cut-o󰀨 rating –20A 200V DC
(Min. 10 cycles)*2
–20A 200V DC
(Min. 100 cycles)*2
–80A 200V DC
(Min. 1,000 cycles)*2
–200A 200V DC
(Min. 1,000 cycles)*2
–300A 200V DC
(Min. 100 cycles)
Min. switching capacity 1A 6V DC 1A 12V DC 1A 12V DC 1A 12V DC 1A 24V DC
Contact voltage drop (Initial)
Max. 0.5V
(When carrying
current is 10A)
Max. 0.2V
(By voltage drop 6V
DC 20A)
Max. 0.067V
(By voltage drop 6V
DC 20A)
Max. 0.1V
(When carrying
current is 200A)
Max. 0.06V
(When carrying
current is 300A)
Electrical
characteristics
Insulation resistance (Initial) Min. 100MΩ (at 1,000V DC) Measurement at same location as “Breakdown voltage” section.
Breakdown
voltage
(Initial)
Between open
contacts 2,500 Vrms for 1min. (Detection current: 10mA)
Between contact
and coil 2,500 Vrms for 1min. (Detection current: 10mA)
Operate time (at 20°C 68°F)Max. 50ms
(Nominal voltage applied to the coil, excluding contact bounce time)
Max. 30ms
(Nominal voltage
applied to the coil,
excluding contact
bounce time)
Release time (at 20°C 68°F)Max. 30ms
(After the nominal operation voltage stops, without diode)
Max. 10ms
(After the nominal
operation voltage
stops)
Coil holding voltage*5— — 50 to 100%
(at 80°C 176°F)
50 to 100%
(at 80°C 176°F)(Automatic switching)
Mechanical
characteristics
Shock
resistance
Functional
10A, 20A (ON), 80A (ON), 200A (ON) and 300A (ON) types:
Min. 196 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs)
20A (OFF), 80A (OFF), 200A (OFF) and 300A (OFF) types:
Min. 98 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs)
Destructive Min. 490 m/s2 (Half-wave pulse of sine wave: 6 ms)
Vibration
resistance
Functional 10 to 200Hz, acceleration 43m/s2 constant (Detection time: 10µs)
Destructive 10 to 200Hz, acceleration 43m/s2 constant (3 directions, each 4 hours)
Expected life
Mechanical Min. 105Min. 2×105
Electrical*4
(Resistive load)
10A 400V DC
Min. 7.5×104 *2
(Switching frequency:
20 times/min)
20A 400V DC
Min. 3×103 *2
10A 1,000V DC
Min. 103 *2
(Switching frequency:
6 times/min)
80A 400V DC
Min. 103 *2
(Switching frequency:
20 times/min)
200A 400V DC
Min. 3×103 *2
(Switching frequency:
20 times/min)
60A 1,000V DC
Min. 103 *2
(Switching frequency:
6 times/min)
300A 400V DC
Min. 103
(Switching frequency:
6 times/min)
Conditions Conditions for operation,
transport and storage*1
Ambient temperature: –40°C to +80°C –40°F to +176°F (Storage: Max. +85°C +185°F),
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Unit weight Approx. 80 g 2.820oz Approx. 180 g
6.349oz
Approx. 400 g
14.11oz
Approx. 600 g
21.16oz
Approx. 750 g
26.46oz
EP (AEP)
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REFERENCE DATA
Note: The switching life curves are rough guides for when using over the nominal values. Be sure to conduct tests with the actual
device to verify your specications.
1.-(3) Ambient temperature characteristics
(80A type)
1.-(2) Ambient temperature characteristics
(20A type)
2020
Tested sample：AEP31012, 3 pcs.
2020
1010
3030
ｰ20ｰ20
ｰ10ｰ10
ｰ40ｰ40
ｰ40ｰ40 ｰ20ｰ20 00
4040 6060
ｰ30ｰ30
Operate voltageOperate voltage
Release
voltage
Release
voltage
Ambient
temperature
（°
C）
Ambient
temperature
（°
C）
Rate of change
（％）
Rate of change
（％）
8080
4040
2020
Tested sample：AEP52012, 3 pcs.
Operate
voltage
Operate
voltage
Release
voltage
Release
voltage
Ambient
temperature
（℃）
Ambient
temperature
（℃）
Rate of change
（％）
Rate of change
（％）
2020
1010
4040
3030
ｰ20ｰ20
ｰ10ｰ10
ｰ40ｰ40 ｰ20ｰ20 00
4040 6060 8080
ｰ30ｰ30
ｰ40ｰ40
2020
ｰ40ｰ40 ｰ20ｰ20 00
Tested sample：AEP18012, 3 pcs.
Operate
voltage
Operate
voltage
Release
voltage
Release
voltage
Ambient
temperature
（℃）
Ambient
temperature
（℃）
Rate of change
（％）
Rate of change
（％）
6060 8080
2020
1010
4040
3030
ｰ20ｰ20
ｰ10ｰ10
ｰ30ｰ30
ｰ40ｰ40
4040
Operate timeOperate time
Release
time
Release
time
1.-(4) Ambient temperature characteristics
(200A type)
2.-(1) Max. value for switching capacity
(10A and 20A types)
1.-(5) Ambient temperature characteristics
(300A type)
2020
Tested sample：AEP17012, 3 pcs.
Operate
voltage
Operate
voltage
Release
voltage
Release
voltage
Ambient
temperature
（℃）
Ambient
temperature
（℃）
Rate of change
（％）
Rate of change
（％）
2020
1010
4040
5050
3030
ｰ20ｰ20
ｰ10ｰ10
ｰ30ｰ30
ｰ40ｰ40
ｰ50ｰ50
ｰ40ｰ40 ｰ20ｰ20 00
60604040 8080
ｰ20ｰ20
ｰ10ｰ10
ｰ30ｰ30
ｰ20ｰ20 00 4040
Tested sample：AEP19012, 3 pcs.
Operate
voltage
Operate
voltage
Release
voltage
Release
voltage
Ambient
temperature
（℃）
Ambient
temperature
（℃）
Rate of change
（％）
Rate of change
（％）
Operate timeOperate time
Release timeRelease time
6060 8080
ｰ40ｰ40
ｰ40ｰ40
2020
1010
4040
3030
2020
1,000
100
10
1110 100 1,000
10A type
400V DC resistive load
10A type
400V DC resistive load
20A type
400V DC resistive load
20A type
400V DC resistive load
Contact voltage
（V）
Contact current
（A）
2.-(2) Max. value for switching capacity
(80A, 200A and 300A types)
3.-(2) Switching life and cut-o󰀨 curves
(20A type)
3.-(1) Switching life and cut-o󰀨 curves
(10A type)
1,000
100
10
11 10 100 1,000
300A type
400V DC resistive load
300A type
400V DC resistive load
80A type
400V DC resistive load
80A type
400V DC resistive load
200A type
400V DC resistive load
200A type
400V DC resistive load
Contact voltage
（V）
Contact current
（A）
110 100 1,000
Cut-off only
above 10A
Switching and cut-off
possible 10A or less Load
：
Resistive
10A
1
10
100
1
,000
10,000
1,000V DC
1,000V DC
800V DC
800V DC
600V DC
600V DC
400V DC
400V DC
Contact current
（A）
No. of operations
（cycle）
20A
110 100 1,000
1
10
100
1
,000
10,000
1,000V DC
1,000V DC
800V DC
800V DC
600V DC
600V DC
400V DC
400V DC
Cut-off only
above 20A
Switching and cut-off
possible 20A or less
Load
：
Resistive
Contact current
（A）
No. of operations
（cycle）
1.-(1) Ambient temperature characteristics
(10A type)
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3.-(3) Switching life and cut-o󰀨 curves
(80A type)
3.-(5) Switching life and cut-o󰀨 curves
(300A type)
3.-(4) Switching life and cut-o󰀨 curves
(200A type)
4.-(1) Carrying performance curve
(10A and 20A type)
4.-(2) Carrying performance curve
(80A, 200A and 300A types)
Cut-off only
above 80A
Switching and cut-off possible 80A or less
Load
：
Resistive
1
,000
Contact current
（A）
No. of operations
（cycle）
80A
110 100 1,000
1
10
100
10,000
1,000V DC
1,000V DC
800V DC
800V DC
600V DC
600V DC
400V DC
400V DC
110 100 10,0001,000
1
10
100
10,000
1,000V DC
1,000V DC
800V DC
800V DC
600V DC
600V DC
400V DC
400V DC
Cut-off only
above 200A
Switching and cut-off possible 200A or less
Load
：
Resistive
1
,000
Contact current
（A）
No. of operations
（cycle）
200A300A
10,0001,000
10 100
1
10
100
10,000
1,000V DC
1,000V DC
800V DC
800V DC
600V DC
600V DC
400V DC
400V DC
Cut-off only above 300A
Switching and cut-off
possible 300A or lessLoad
：
Resistive
1
,000
Contact current
（A）
No. of operations
（cycle）
1 10 100 1,000
105
104
10
100
1,000
10A type
（Electric cable
2mm2）
10A type
（Electric cable
2mm2）
20A type
（Electric cable
3mm2）
20A type
（Electric cable
3mm2）
Carrying current
（A）
Time
（s）
1 10 100 1,000
105
104
10
100
1,000
80A type
（Electric cable
15mm2）
80A type
（Electric cable
15mm2）
200A type
（Electric cable
60mm2）
200A type
（Electric cable
60mm2）
300A type
（Electric cable
100mm2）
300A type
（Electric cable
100mm2）
Carrying current
（A）
Time
（s）
DIMENSIONS (mm)
Schematic (Bottom view)External dimensions
PC board pattern (Bottom view)
1. 10A PC board type
Lead-free pre-solder
(Suｰ3Agｰ0.5Cu)
2dia.
2dia.
34 1.4
3
31.3
Max.4.5
0.5
31.6
(1)
19.5
62.4
55.9±0.3
45
8.6±0.3
11±0.3
Coil input
terminal
37.9
R2.3
4.5
16.5±0.3
9.5±0.39.5±0.3
General tolerance
Less than 10mm：±0.3
Min. 10mm
less than 50mm：±0.6
Min. 50mm：±1.0
2
：
Load input terminal
（－）
1
：
Load input terminal
（＋）
Load sides have polarities
（＋）
and
（－）
.
1＋
2－
6：
Coil
5
：
Coil
16.5
9.5
8.6
19.6
55.9
Notes：1.We recommend through hole
plating with land on both sides.
2.Be careful of the insulation
distance
between land patterns
with regards to
the circuit voltage
you will use.
Tolerance ±0.1
Mounting hole
2ｰ4.2dia. After doing through hole
plating 4ｰ2.45 dia.
＋
0.1
0
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
CAD
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Schematic (Top view)External dimensions
Panel cut-o󰀨
2. 10A TM type
Load sides have polarities
（＋）
and
（－）
.
1＋
2－
5：
Coil
6
：
Coil
31.6
37.9
19.5
0.4
5.7
31.7
Max.45
Coil input terminal
#187 tab, 0.5t
14.1±0.3
2
：
Load input
terminal
（－）
#187 tab, 0.5t
1
：
Load input
terminal
（
＋
）
#187 tab, 0.5t
11.3±0.3
19.6
45
55.9
66.8±0.3
8.6
4.5±0.2dia.
General tolerance
Less than 10mm：±0.3
Min. 10mm less than 50mm：±0.6
Min. 50mm：±1.0
55.9
Tolerance ±0.1
2ｰ4.2dia.
Schematic (Bottom view)External dimensions
Panel cut-o󰀨
3. 20A TM type
Load sides have polarities
（＋）
and
（－）
.
1＋
2－
5：
Coil
6
：
Coil
2-Load input
terminal
（－）
#250 tab, 0.8t
1-Load input
terminal
（
＋
）
#250 tab, 0.8t
Coil terminal
（no polarity）
#250 tab, 0.8t
11.1
37±1
5.8
50
78
22.8
64
40
9.2
19
22.5
2ｰ6dia.
General tolerance
Less than 10mm：±0.3
Min. 10mm less than 50mm：±0.6
Min. 50mm：±1.0
64
Tolerance ±0.1
2‒6±0.2dia.
CAD
CAD
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Schematic (Top view)External dimensions
Panel cut-o󰀨
4. 80A Connector type
Coil
Coil
1＋2－
Load sides have polarities
（＋）
and
（－）
Schematic (Bottom view)External dimensions
PC board pattern (Bottom view)
5. 200A Lead wire type
Coil
Coil
＋－
Load sides have polarities
（＋）
and
（－）
.
10
7.3
79
75.5
2
：
Load input terminal
（－）2：
Load input terminal
（－）
7
26±0.3
7
.3
63.5±0.3
Color height 5.72
Connector Part No.：
7282‒1020（Yazaki）＊
Ｍ5 bolt
12
6dia.
57.9
（ends of bus bar）
15.9
(
width of bus bar
)
44.9（Ｍ5 bolt pitch）
(17.9)
69
75
40
（Ｍ4）
8dia.(flat washer)
45
（connector position）
45
（connector position）
General tolerance
Less than 10mm：±0.3
Min. 10mm less than 50mm：±0.6
Min. 50mm：±1.0
1
：
Load input terminal
（＋）
2ｰ6dia.
63.5
26
Tolerance ±0.1
*Accessories (included)
（5）
300±10
Female connector
（non-water-
proof type）
,Yazaki 7283‒1020
0.5sq/Green
0.5sq/White
＊
Accessories
Two hexagonal bolts
（M6×12mm）
with flat washers are included.
M6 female screw
Load input terminal
（＋）
Load input terminal
（ー）
Coil connection
lead wire
（no polarity）
86.4
45
200±20
(2.1)
(2)
28.2
54
27
67
82±0.3
31±0.3
75
0.5
Color height 5.7
95
2ｰ6
General tolerance
Less than 10mm：±0.3
Min. 10mm less than 50mm：±0.6
Min. 50mm：±1.0
note）
Coil lead wire
sectional view：0.5mm2
31
82
Tolerance ±0.1
2ｰ6dia.
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NOTES
SAFETY STANDARDS
External dimensions
6. 300A Connector type
1＋2－
Input and load sides have polarities
（＋）
and
（－）
.
5：
Coil
（V＋）
6：
Coil
（GND）
79
47
3ｰ6dia.
Tolerance ±0.1
(13)
39.3
74.7
5.7
48.7
27
24.5
Connector Part No.：
7282‒1020（Yazaki）＊
3
5
：
Coil terminal
（
V
＋）
61.7
Ｍ8 bolt
Ｍ8 Flange nut
6
：
Coil terminal
（
GND
）
2： Load input
terminal
（ー）
1： Load input
terminal
（＋）
63
60
47±0.3
27
111
92
86
79±0.3
44
73.4
3ｰ6dia.
General tolerance
Less than 10mm：±0.3
Min. 10mm less than 50mm：±0.6
Min. 50mm：±1.0
Min. 100mm：±1.6
Schematic (Top view)
Panel cut-o󰀨
*Accessories (included)
（5）
300±10
Female connector
（non-water-
proof type
）
,Yazaki 7283
‒
1020
0.5sq/Green
（GND）
0.5sq/White
（V＋）
Product name UL/C-UL (Recognized)
File No. Contact rating
10A E43149 10A 400V DC, 10A 277V AC Resistive
20A* (E43149) (20A 400V DC, 20A 277V AC Resistive)
80A E43149 80A 400V DC, 80A 277V AC Resistive
*20A type: only UL (Recognized)
1. For cautions for use, please read
“GENERAL APPLICATION
GUIDELINES” on page B-1.
2. When installing the relay, always
use washers to prevent the screws
from loosening.
Tighten each screw within the rated
range given below. Exceeding the
maximum torque may result in breakage.
Mounting is possible in either direction.
• M5 screw (20A, 80A, 200A and 300A
main unit mounting section): 3 to 4N·m
• M4 screw (10A PC board type main unit
mounting section): 0.98 to 1.2N·m
(10A TM type main unit mounting
section): 1.8 to 2.7N·m
Recommended securing torque on load
side terminals
• 80A/M5 bolt: 3.5 to 6.5 N·m
• 200A/M6 bolt: 6 to 8 N·m
• 300A/M8 bolt: 10 to 12 N·m
3. The contacts of the relay are
polarized. Please follow instructions
in the connection schematic when
connecting the contacts.
We recommend installing a surge
protector varistor for the 10A, 20A, 80A
and 200A types. Please note that when
using a diode, the switching speed may
decrease and cause a reduction in cut-o󰀨
performance. For the 300A type,
separate surge countermeasures are not
required, because it contains a built-in
surge absorbing element.
4. Do not use a relay if it has been
dropped.
• Recommend varistor; Amount of proof
energy: Min. 1 J
• Varistor voltage: 1.5 to 3.0 times of
nominal voltage
5. Avoid mounting the relay in strong
magnetic elds (near a transformer or
magnet) or close to an object that
radiates heat.
6. Electrical life
This relay is a DC high-voltage switch. In
its nal breakdown mode, it may lose the
ability to provide the proper cut-o󰀨.
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-o󰀨
ability, there is a possibility that burning
may spread to surrounding parts, so
congure the layout so that the power is
turned o󰀨 within one second and from the
point of view of safety, consider installing
a failsafe circuit in the device.
Also, in order to avoid increased contact
resistance, do not operate when there is
no switching load.
CAD
EP (AEP)
9
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/ © Panasonic Corporation 2019 ASCTB3E 201903
Please refer to "the latest product specications"
when designing your product.
• Requests to customers :
https://industrial.panasonic.com/ac/e/salespolicies/
7. 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
a󰀨ected by the temperature inside the
capsule contact (ambient temperature +
temperature rise due to ow of electrical
current). Therefore, please do not exceed
the operation ambient and storage
ambient temperatures given in the
specications.
8. Do not disassemble the relay.
Please note that disassembling the
relay will invalidate the warranty.
9. If the power is turned o󰀨 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.
10. Pure DC current should be applied
to the coil. If it includes ripple, the
ripple factor should be less than 5%.
However, check the actual circuit
since the characteristics may be
slightly di󰀨erent. The power supply
waveform supplied to the coil should
be rectangular. Also, the 300A type
has a built-in dedicated drive circuit. It
may not operate normally unless the
rise time is 10 ms or less.
11. Don’t exceed maximum coil
voltage. Exceeding maximum
allowable coil voltage on continuous
basis will damage the relay and could
case failure.
If you will be using with a load
12. voltage that exceeds 400 V DC, please
be sure to verify operation on the
actual device, referring to the
switching life curves (reference data).
You must absolutely avoid continual
use in which the load current exceeds
the rated value. This will cause
abnormal heating.
13. The rated control capacity and life
are given as general guides.
It is important to conduct su󰀩cient tests
on the actual device, because contact
properties and working life will di󰀨er
considerably depending on the type of
load and conditions.
14. Main contact ratings in the ratings
apply to when there is a resistive load.
If you are using an inductive load (L
load) such that L/R > 1 ms, add surge
protection in parallel with the
inductive load. If this is not done, the
electrical life will decrease and cut-o󰀨
failure may occur.
In order to prevent contact welding
when using a capacitive load (C load)
such as a capacitor load, please make
the inrush current setting more than
two times that of the nominal current.
Please contact us for more
information.
15. 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 o󰀨
unusual heat. Also, please use the
following materials for connected
harnesses and bus bars.
10A TM type:
#187, 0.5 mm board thickness
20A TM type:
#250, 0.8 mm board thickness
tab terminal (JIS C289-1999 compliant,
at type connection terminal)
Harness nominal cross-sectional area
Load input terminal side;
10A TM type: min. 2.0 mm2
20A TM type: min. 3.0 mm2
80A type: min. 15 mm2
200A type: min. 60 mm2
300A type: min. 100 mm2
Coil input terminal side; 10A and 20A TM
types: min. 0.3 mm2
16. Use 40 to 70N or 50 to 80N of force
as a guide to fasten the terminal
connected to the 10A TM and 20A TM
types. Please use caution when
inserting or removing the terminal as
the relay tab terminal may cause
injuly. Also, unstable conductivity and
abnormal terminal heating may occur;
therefore, please check that there is
no deformation of or foreign objects
on the faston terminals (blade
receptacle) you will be connecting.
Use JIS C2809 (or IEC60760) certied
products.
17. Place the PC board mount type
(10A PC board type) securely by hand
soldering after attaching it using M4
screw. Don’t submerge assembled
board in cleaning solvent or water.
Also, be careful not let ux overow
up from the PC board or adhere to the
base of the relay.
Recommended hand soldering
conditions
• Soldering iron: 30 to 60 W
• Tip temperature: 400°C 752°F
• Solder time: within approx. 5 seconds
18. Make sure the power is turned o󰀨
when wiring.
19. Incorrect wiring may cause
unexpected malfunction and failure.
20. Regarding AC cuto󰀨, although
there is no contact polarity, generally
it is thought that the electrical life will
shorten due to cuto󰀨 in the reverse
direction, compared to DC cuto󰀨.
Conrm electrical life using actual
load. In the case of DC cut-o󰀨, please
note the contact polarity.
21. Lead-free solder (tin, silver and
copper) is used as pre-solder for the
terminals of the PC board mount type
(10A PC board type).
22. The warranted tensile strength of
the female connector lead wire used
for connection that comes with the
80A and 300A connector type when
attaching it to the relay body is 98N.
Avoid excessive tension as this is a
cause of broken wires and damage.
Also, insert the female connector
deeply and make sure the connection
is secure.
23. Condensation will occur during
sudden temperature changes in hot
and humid environments. Caution is
required, because condensation will
cause a decrease in the insulation
resistance between the terminals.
24. Please note that if the 80 A type is
used only with excessive load, the
contact resistance may possibly
increase.
Panasonic Corporation 2019
c
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/ -1-
Humidity, %R.H.
Allowable range
85
5
0 85–40
(Avoid
condensation
when used at
temperatures
higher than
0°C
(Avoid icing
when used at
temperatures
lower than 0°C)
Ambient temperature, °C
)
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
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 a󰀨ected 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 di󰀨ers for
each relays, please refer to the relay's individual specications.
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, re and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Usage, Transport, and Storage Conditions
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 di󰀨er from the
allowable range. In this case be sure to check the individual
specications. Also allowable humidity level is inuenced by
temperature, please check charts shown below and use relays
within mentioned conditions. (Allowable temperature values
di󰀨er for each relays, please refer to the relay's individual
specications.)
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
(Hot start)
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 pick-up 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 pick-up voltage and the pick-up voltage rises in
accordance with the increase in the resistance value. However, for
some polarized relays, this rate of change is considerably smaller.
Precautions for Coil Input
Ambient Environment
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
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
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 Corporation 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 Corporation 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 sulde gases may cause a sulde lm or oxide lm 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.
ASCTB412E 201903
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/ Panasonic Corporation 2019
c
-2-
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
Package
In terms of the packing format used, make every e󰀨ort to keep the
e󰀨ects of moisture, organic gases and sulde gases to the absolute
minimum.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone lling 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).
Others
Cleaning
1) 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.
2) 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 specications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
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 a󰀨ects 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.
ASCTB412E 201903
2019
ASCTB3E-1 201903