Automation Controls Catalog
Compliant with
European standards
1a/2a/1a1b 10A/8A
polarized power relays
FEATURES
1. Conforms to European safety
standard (VDE0700 and VDE0631)
Insulating distance between coil and
contacts:
Clearance Min. 8mm .315 inch
Creepage Min. 8mm .315 inch
2. Low operating power
Nominal operating power at 200 mW
(Single side stable, 2 coil latching)
3. Compact body saves space
Size: 12.5(W)×25(L)×12.5(H) mm
.492(W)×.984(L)×.492(H) inch
4. Conforms to the various safety
standards
UL, C-UL and VDE approved
Protective construction: Sealed type
DE RELAYS
TYPICAL APPLICATIONS
1. Temperature controller
2. Automatic meter reading
3. OA equipment
4. FA equipment
ORDERING INFORMATION
DE
Contact arrangement
1a: 1 Form A
2a: 2 Form A
1a1b: 1 Form A 1 Form B
Operating function
Nil: Single side stable
L2: 2 coil latching
Nominal coil voltage (DC)
5, 12, 24V
Note: This product is manufactured by lot after an order is received.
TYPES
Contact arrangement
1 Form A
1 Form A 1 Form B
2 Form A
Part No.
Nominal coil voltage
Single side stable type
DE1a-5V
DE1a-12V
DE1a-24V
DE1a1b-5V
DE1a1b-12V
DE1a1b-24V
DE2a-5V
DE2a-12V
DE2a-24V
5V DC
12V DC
24V DC
5V DC
12V DC
24V DC
5V DC
12V DC
24V DC
2 coil latching type
DE1a-L2-5V
DE1a-L2-12V
DE1a-L2-24V
DE1a1b-L2-5V
DE1a1b-L2-12V
DE1a1b-L2-24V
DE2a-L2-5V
DE2a-L2-12V
DE2a-L2-24V
Standard packing: Tube package: 20 pcs.; Case: 500 pcs.
Note: This product is manufactured by lot after an order is received.
2019.03
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1
© Panasonic Corporation 2019
ASCTB175E 201903
DE
RATING
1.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.
1) Single side stable type
Nominal coil
voltage
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
5V DC
12V DC
24V DC
70%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
Nominal operating
current
[±10%] (at 20°C 68°F)
40 mA
16.6mA
8.3mA
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power
Max. applied voltage
(at 20°C 68°F)
200mW
130%V of
nominal voltage
125Ω
720Ω
2,880Ω
2) 2 coil latching type
Nominal coil
voltage
Set voltage
(at 20°C 68°F)
Reset voltage
(at 20°C 68°F)
5V DC
12V DC
24V DC
70%V or less of
nominal voltage
(Initial)
70%V or less of
nominal voltage
(Initial)
Nominal operating
current
[±10%] (at 20°C 68°F)
Set coil
Reset coil
40 mA
40 mA
16.6mA
16.6mA
8.3mA
8.3mA
Coil resistance
[±10%] (at 20°C 68°F)
Set coil
125Ω
720Ω
2,880Ω
Reset coil
125Ω
720Ω
2,880Ω
Nominal operating
power
Set coil
Reset coil
200mW
200mW
Max. applied voltage
(at 20°C 68°F)
130%V of
nominal voltage
2. Specifications
Characteristics
Contact
Rating
Electrical
characteristics
Item
Arrangement
Contact resistance (Initial)
Contact material
Nominal switching capacity (resistive load)
Max. switching power (resistive load)
Max. switching voltage
Max. switching current
Min. switching capacity*1
Insulation resistance (Initial)
Between open contacts
Breakdown voltage
Between contact sets
(Initial)
Between contact and coil
Surge breakdown voltage*2
(Between contact and coil)
Operate time [Set time] (at 20°C 68°F)
Release time [Reset time] (at 20°C 68°F)
Mechanical
characteristics
Expected life
Conditions
Functional
Destructive
Functional
Vibration resistance
Destructive
Mechanical
Conditions for operation, transport and
storage*3 *4
Shock resistance
Unit weight
Specifications
2 Form A
1 Form A 1 Form B
Max. 30 mΩ (By voltage drop 6 V DC 1A)
AgSnO2 type
10A 250V AC, 10A 30V DC
8A 250V AC, 8A 30V DC
2,500VA, 300W
2,000VA, 240W
250V AC, 30V DC
250V AC, 30V DC
10A
8A
100mA 5V DC
Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section.
1,000 Vrms for 1 min. (Detection current: 10 mA)
—
4,000 Vrms for 1 min. (Detection current: 10 mA)
5,000 Vrms for 1 min. (Detection current: 10 mA)
1 Form A
12,000 V (Initial)
Max. 10 ms [Max. 10 ms]
(Nominal coil voltage applied to the coil, excluding contact bounce time.)
Max. 5 ms [Max. 10 ms]
(Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode)
Min. 196 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
Min. 980 m/s2 (Half-wave pulse of sine wave: 6 ms.)
10 to 55 Hz at double amplitude of 2 mm (Detection time: 10µs.)
10 to 55 Hz at double amplitude of 3 mm
Min. 107 (at 300 times/min.)
Ambient temperature: –40°C to +70°C –40°F to +158°F;
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Approx. 7 g .25 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. Wave is standard shock voltage of ±1.2×50μs according to JEC-212-1981
*3. 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.
*4. Allowable temperature range with our package form: –40°C to +60°C –40°F to +140°F.
3. Electrical life
Condition: Resistive load, at 20 times/min.
Type
1 Form A
1 Form A 1 Form B
2 Form A
Switching capacity
10A 250V AC
10A 30V DC
8A 250V AC
8A 30V DC
8A 250V AC
8A 30V DC
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2
No. of operations
min. 1×105
min. 1×105
min. 1×105
min. 5×104
© Panasonic Corporation 2019
ASCTB175E 201903
DE
REFERENCE DATA
1.-(1) Maximum switching power (1 Form A)
1.-(2) Maximum switching power
(1 Form A 1 Form B, 2 Form A)
100
AC resistive load
10
DC resistive load
1
50
AC resistive load
10
DC resistive load
10
0.1
100
1000
Contact voltage, V
1
10
1000
100
Contact voltage, V
10
2.-(3) Life curve (2 Form A)
100
100
50
50
250 V AC resistive load
30 V DC resistive load
2
3
4 5 6 7 8
Contact current, A
9
10
10
3.-(2) Coil temperature rise (1 Form A 1 Form B)
Tested sample: DE1a1b-5V
Quantity: n=6
Ambient temperature: 25°C to 70°C 77°F to 158°F
50
0
1
2
Temperature rise, °C
8A
0A
8A
30
0A
20
4 5 6 7 8
Contact current, A
9
8A
8A
0A
0A
30
20
40
10A
0A
10A
0A
30
20
0
70
80
70
80
0
90
100
110 120 130
Coil applied voltage, %V
4.-(2) Operate/release time (1 Form A 1 Form B)
Tested sample: DE1a1b-5V, Quantity: n=5
70
80
90
100
110 120
Coil applied voltage, %V
130
4.-(1) Operate/release time (1 Form A)
Tested sample: DE1a-5V
Quantity: n=5
8
Operate time
7
6
Max.
x
Min.
Max.
x
Min.
5
4
3
Release time
(With diode)
1
0
10
25°C 77°F
70°C 158°F
2
10
10
9
9
25°C 77°F
70°C 158°F
40
4 5 6 7 8
Contact current, A
10
10
Tested sample: DE2a-5V
Quantity: n=6
Ambient temperature: 25°C to 70°C 77°F to 158°F
50
40
3
3.-(3) Coil temperature rise (2 Form A)
25°C 77°F
70°C 158°F
3
50
Operate/release time, ms
1
2
3.-(1) Coil temperature rise (1 Form A)
30 V DC resistive load
0
1
Tested sample: DE1a-5V
Quantity: n=6
Ambient temperature: 25°C to 70°C 77°F to 158°F
250 V AC resistive load
Life, ×104
10
0
Temperature rise, °C
1
2.-(2) Life curve (1 Form A 1 Form B)
Temperature rise, °C
250 V AC resistive load
30 V DC resistive load
1
0.1
Life, ×104
100
Life, ×104
Contact current, A
Contact current, A
100
2.-(1) Life curve (1 Form A)
90
100
110 120 130
Coil applied voltage, %V
4.-(3) Operate/release time (2 Form A)
Tested sample: DE2a-5V, Quantity: n=5
0
Max.
x
Min.
Release time
70
80
90
100
110
120
130
Coil applied voltage, %V
5.-(1) Ambient temperature characteristics
(1 Form A)
Tested sample: DE1a-5V, Ambient temperature:
–40°C to 80°C –40°F to 176°F, Quantity: n=6
Max.
x
Min.
5
4
3
Max.
x
Min.
Max.
x
Min.
Operate time
2
Release time
1
70
80
90
100
7
Operate time
6
Max.
x Max.
Min.
x
Min.
5
4
3
Release time
(With diode)
2
1
110
120
130
0
Release time
70
80
Coil applied voltage, %V
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Rate of change, V%
6
0
8
Release time
(With diode)
Operate/release time, ms
Operate/release time, ms
7
–40
–40
Max.
x
Min.
–20
–4
30
20
10
0
Drop-out
voltage
Pick-up
voltage
0
20 40
60
80
32
68 104 140 176
–10
Ambient
–20 temperature,°C °F
–30
90
100
110
120 130
Coil applied voltage, %V
3
© Panasonic Corporation 2019
ASCTB175E 201903
DE
–40
–40
–20
–4
5.-(3) Ambient temperature characteristics
(2 Form A)
Tested sample: DE2a-5V, Ambient temperature:
–40°C to 80°C –40°F to 176°F, Quantity: n=6
Rate of change, V%
Rate of change, V%
5.-(2) Ambient temperature characteristics
(1 Form A 1 Form B)
Tested sample: DE1a1b-5V, Ambient temperature:
–40°C to 80°C –40°F to 176°F, Quantity: n=6
30
Drop-out
20 voltage
10
0
Pick-up
voltage
80
176
–40
–40
0
20 40
60
32
68 104 140
–10
Ambient
temperature,°C °F
–20
–20
–4
0
32
–10
–20
30
Drop-out
20 voltage
Pick-up
voltage
10
0
20 40
60
80
68 104 140 176
Ambient
temperature,°C °F
–30
–30
DIMENSIONS (mm inch)
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
CAD
External dimensions
PC board pattern (Bottom view)
Single side stable type
25.00
.984
Single side stable type
12.50
.492
15.24
.600
12.50 0.50
.492 .020
7.62
.300
2 coil latching type
6-1.2 dia.
6-.047 dia. 2.54
.100
4-0.80
4-.032
2-0.50 dia.
2-.020 dia.
1.15
.045
15.24
.600
4-0.40
4-.016
7.62
.300
8-1.2 dia.
8-.047 dia.
7.62
.300
7.62
.300
7.62
.300
3.50
.138
12.70
.500
Tolerance: ±0.1 ±.004
7.62
.300
Schematic (Bottom view)
Single side stable type
2 coil latching type
(1 Form A)
25.00
.984
12.50
.492
12.50 0.50
.492 .020
1
3
4
8
6
5
(5,6: dummy terminal)
3.50
.138
4-0.50 dia.
4-.020 dia.
1.15
.045
4-0.80
4-.032
2.54
.100
12.70
.500
(1 Form A)
4-0.40
4-.016
7.62
.300
(2 Form A)
1
3
4
1
3
4
8
6
5
8
6
5
(Deenergized condition)
2coil latching type
(1 Form A 1 Form B)
(2 Form A)
1
2
3
4
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
8
7
6
5
7.62
.300
(5,6: dummy terminal)
Tolerance: ±0.3 ±.012
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(1 Form A 1 Form B)
4
(Reset condition)
© Panasonic Corporation 2019
ASCTB175E 201903
DE
SAFETY STANDARDS
Types
File No.
1 Form A
E120782
1 Form A 1 Form B
E120782
2 Form A
E120782
UL/C-UL (Recognized)
Contact rating
8A 120V AC Lamp Load
12A 120V AC General use
8A 277V AC General use
10A 277V AC Ballast
2A 480V AC Resistive
1HP 277V AC
6A 347V AC General use
PILOT DUTY B300,R300
6A 120V AC Lamp Load
8.5A 120V AC General use
6A 277V AC General use
2A 480V AC Resistive
0.7HP 277V AC
4.5A 347V AC General use
PILOT DUTY B300,R300
8A 120V AC Lamp Load
12A 120V AC General use
8A 277V AC General use
10A 277V AC Ballast
2A 480V AC Resistive
1HP 277V AC
6A 347V AC General use
PILOT DUTY B300,R300
Cycles
3 × 104
3 × 104
–
–
105
–
3 × 104
–
3 × 104
3 × 104
3 × 104
105
–
3 × 104
–
3 × 104
3 × 104
–
–
105
–
3 × 104
–
File No.
115944
115944
115944
VDE (Certified)
Contact rating
8A 250V AC (cosφ =1.0)
16A 250V AC (cosφ =1.0)
–
–
–
–
–
–
8A 250V AC (cosφ =1.0)
16A 250V AC (cosφ =1.0)
–
–
–
–
–
8A 250V AC (cosφ =1.0)
–
–
–
–
–
–
–
Temperature
70°C 158°F
70°C 158°F
–
–
–
–
–
–
70°C 158°F
70°C 158°F
–
–
–
–
–
70°C 158°F
–
–
–
–
–
–
–
Cycles
15 × 104
6 × 103
–
–
–
–
–
–
15 × 104
5 × 103
–
–
–
–
–
–
–
–
–
–
–
–
–
* CSA standard: Certified by C-UL
EN/IEC VDE Certified
INSULATION CHARACTERISTIC (IEC61810-1)
Item
Clearance/Creepage distance (IEC61810-1)
Category of protection (IEC61810-1)
Tracking resistance (IEC60112)
Insulation material group
Over voltage category
Rated voltage
Pollution degree
Type of insulation (Between contact and coil)
Type of insulation (Between open contacts)
Characteristics
Min. 8.0/8.0mm
RT III
PTI 175
III a
III
250V
3
Reinforced insulation
Micro disconnection
NOTES
1. For cautions for use, please read “GENERAL APPLICATION GUIDELINES”.
Please refer to "the latest product specifications"
when designing your product.
• Requests to customers :
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© Panasonic Corporation 2019
ASCTB175E 201903
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF 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
Maximum allowable voltage and temperature rise
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.
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.
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.
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
Dew condensation
Usage, Transport, and Storage Conditions
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.)
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.)
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 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.
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, %R.H.
85
Allowable range
(Avoid icing
when used at
temperatures
lower than 0°
C)
5
–40
(Avoid
condensation
when used at
temperatures
higher than
0°
C)
0
Ambient temperature, °
C
85
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GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF 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
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 specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
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c Panasonic Corporation 2019
ASCTB412E 201903
2019
ASCTB175E-1 201903
