PANASONIC-DSP2A-L2-DC12V
| Part # | PANASONIC-DSP2A-L2-DC12V |
Download  | PANASONIC-DSP2A-L2-DC12V |
Automation Controls Catalog
1a 8A, 1a1b/2a 5A
small polarized power
relays
DSP RELAYS
3. High sensitivity
TYPICAL APPLICATIONS
Using the same type of highperformance
polar magnetic circuits as DS relays, by
matching the spring load to the magnetic
force of attraction, greater sensitivity
has been achieved. The resultant pick
up sensitivity of about 190 mW makes
possible direct driving of transistors and
chips.
1.
Office and industrial electronic
devices
2. Terminal devices of information
processing equipment, such as
printer, data recorder
3.
Office equipment (copier, facsimile)
4. Measuring instruments
5. NC machines, temperature
controllers and programmable logic
controllers
4. High breakdown voltage
Breakdown voltage has been raised by
keeping the coil and contacts separate.
Between contact and
Between contacts
coil
Protective construction: Sealed type
3,000 Vrms for 1 min.
5,000 V surge
1,000 Vrms for 1 min.
1,500 V surge
breakdown voltage
breakdown voltage
Conforms with FCC Part 68
5. Latching types available
6. Wide variation
Three types of contact arrangement
are offered: 1a, 2a, and 1a1b. In
addition, each is available in standard
and reversed polarity types.
7. Sealed construction allows
automatic washing
8. Complies with safety standards
Complies with Japan Electrical
Appliance and Material Safety Law
requirements for operating 200 V
power supply circuits, and complies
with UL, CSA, and TÜV safety
standards.
FEATURES
1. Compact with high contact rating
Even with small 10 mm
.394 inch
(H) x
11 mm
.433 inch
(W) x 20 mm
.787
inch
(L) (dimensions, high capacity
switching is provided: 1a, 8 A 250 V
AC; 2a and 1a1b, 5 A 250 V AC.
2. High switching capability
High contact pressure, low contact
bounce, and wiping operation improve
resistance to weld bonding. Resistant
against lamp load and dielectric
loading: 1a achieves maximum
switching capacity of 2,000 VA (8A 250
V AC).
9. Sockets are available
ORDERING INFORMATION
DSP
Contact arrangement
Operating function
Nominal coil voltag
e
（
DC
）
Polarity
Contact material
1a
：
1 Form A
Nil
：
Single side stable
3, 5, 6, 9, 12, 24 V
Nil
：
Standard polarity
• AgSnO
type
2
1
：
1 Form A 1 Form B
L2
：
2 coil latching
2a
:
2 Form A
R
：
Reverse polarity
F
：
1 Form A 1 Form B
Nil
：
1 Form A, 2 Form A
Notes
：
1. Reverse
polarity types availabl
e
（
add suffix-R
）
2. Certified
by UL, CSA and TÜV
industrial.panasonic.com/ac/e/
© Panasonic Corporation 2019
ASCTB180E 201903
2019.03
1
DSP
TYPES
Single side stable
Part No.
2 coil latching
Contact
Nominal coil
voltage
arrangement
Part No.
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
DSP1a-DC3V
DSP1a-DC5V
DSP1a-DC6V
DSP1a-DC9V
DSP1a-DC12V
DSP1a-DC24V
DSP1-DC3V-F
DSP1-DC5V-F
DSP1-DC6V-F
DSP1-DC9V-F
DSP1-DC12V-F
DSP1-DC24V-F
DSP2a-DC3V
DSP2a-DC5V
DSP2a-DC6V
DSP2a-DC9V
DSP2a-DC12V
DSP2a-DC24V
DSP1a-L2-DC3V
DSP1a-L2-DC5V
DSP1a-L2-DC6V
DSP1a-L2-DC9V
DSP1a-L2-DC12V
DSP1a-L2-DC24V
DSP1-L2-DC3V-F
DSP1-L2-DC5V-F
DSP1-L2-DC6V-F
DSP1-L2-DC9V-F
DSP1-L2-DC12V-F
DSP1-L2-DC24V-F
DSP2a-L2-DC3V
DSP2a-L2-DC5V
DSP2a-L2-DC6V
DSP2a-L2-DC9V
DSP2a-L2-DC12V
DSP2a-L2-DC24V
1 Form A
1 Form A
1 Form B
2 Form A
Standard packing: Carton: 50 pcs.; Case: 500 pcs.
Note: Reverse polarity type are manufactured by lot upon receipt of order.
* Sockets available.
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
Nominal operating
current
[±10%] (at 20°C
68°F
)
Nominal coil
voltage
Pick-up voltage
(at 20°C
68°F
)
Drop-out voltage
(at 20°C
68°F
)
Coil resistance
[±10%] (at 20°C
68°F
)
Nominal operating
power
Max. applied voltage
(at 20°C
68°F
)
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
100 mA
60 mA
50 mA
33.3mA
25 mA
12.5mA
30Ω
83Ω
80%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
120Ω
270Ω
480Ω
1,920Ω
130%V of
nominal voltage
300mW
2) 2 coil latching
Nominal operating
current
[±10%] (at 20°C
68°F
)
Coil resistance
[±10%] (at 20°C
68°F
)
Nominal operating
power
Nominal coil
voltage
Set voltage
(at 20°C
68°F
)
Reset voltage
(at 20°C
68°F
)
Max. applied voltage
(at 20°C
68°F
)
Set coil
100 mA
60 mA
50 mA
33.3mA
25 mA
12.5mA
Reset coil
100 mA
60 mA
50 mA
33.3mA
25 mA
12.5mA
Set coil
30Ω
Reset coil
30Ω
Set coil
Reset coil
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
83Ω
83Ω
80%V or less of
nominal voltage
(Initial)
80%V or less of
nominal voltage
(Initial)
120Ω
270Ω
480Ω
1,920Ω
120Ω
270Ω
480Ω
1,920Ω
130%V of
nominal voltage
300mW
300mW
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
© Panasonic Corporation 2019
ASCTB180E 201903
2
DSP
2. Specifications
Characteristics
Item
Specifications
1 Form A 1 Form B
Arrangement
1 Form A
2 Form A
Contact
Contact resistance (Initial)
Max. 30 mΩ (By voltage drop 6 V DC 1A)
Au-flashed AgSnO2 type
Contact material
Nominal switching capacity (resistive load)
Max. switching power (resistive load)
Max. switching voltage
8 A 250 V AC, 5A 30V DC
2,000 VA, 150 W
5 A 250 V AC, 5 A 30 V DC
1,250 VA, 150 W
250 V AC, 125 V DC (0.2 A)
5 A (AC, DC)
Rating
Max. switching current
8 A (AC), 5 A (DC)
Nominal operating power
300 mW
Min. switching capacity (Reference value)*
1
10m A 5 V DC
Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage”
Insulation resistance (Initial)
section.
Between open contacts
1,000 Vrms for 1min. (Detection current: 10mA.)
Breakdown voltage (Initial)
Between contact sets
2,000 Vrms (1 Form A 1 Form B, 2 Form A) (Detection current: 10mA.)
3,000 Vrms for 1min. (Detection current: 10mA.)
Between contact and coil
Surge breakdown voltage*
2
between contacts and coil
(Initial)
Electrical
characteristics
5,000 V
Operate time [Set time] (at 20°C
68°F
) (Initial)
Max. 10 ms [10 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
Max. 5 ms [10 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
(without diode)
Release time [Reset time] (at 20°C
68°F
) (Initial)
Functional
Shock resistance
Min. 196 m/s
2
(Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
Min. 980 m/s
2
(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 3.5 mm
Destructive
Mechanical
characteristics
Functional
Vibration resistance
Destructive
Mechanical
Electrical
Min. 5×10
7
(at 180 times/min.)
Expected life
Min. 10
5
(resistive load)
Ambient temperature:
–40°C to +60°C
–40°F to +140°F
Ambient temperature:
–40°C to +65°C
–40°F to +149°F
Ambient temperature:
–40°C to +60°C
–40°F to +140°F
Conditions for operation, transport and storage*
3
(Not
freezing and condensing at low temperature)
Conditions
Unit weight
Max. operating speed
3 cps
Approx. 4.5 g
.16 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.
REFERENCE DATA
1. Max. switching capacity
2.-(1) Life curve (1 Form A 1 Form B)
2.-(2) Life curve (1 Form A 1 Form B)
10
30V DC
resistive load
AC resistive
100
loa
d
（
1a
）
100
50
AC resistive
loa
d
（
1a1b,2a
）
DC resistive
265
V
・
130V AC
（
co
s
φ
＝
1
)
loa
d
（
1a
）
1
30V DC
265
V
・
130V AC
（
L/R
＝
7ms
）
10
（
co
s
φ
＝
0.4
)
DC resistive
loa
d
（
1a1b, 2a
）
10
0.1
10
100
Contact voltag
e
（
V
）
1,000
0
1
2
3
4
5
6
7
0.5
1
5
10
Switching capacit
（
y A
）
Switching capacit
（
y A
）
3.-(1) Coil temperature rise (1 Form A)
3.-(2) Coil temperature rise
(1 Form A 1 Form B)
3.-(3) Coil temperature rise (2 Form A)
Tested sample
：
DSP1a-12V DC, 5 pcs.
Tested sample
：
DSP1-12V DC, 5 pcs.
Tested sample
：
DSP2a-12V DC, 5 pcs.
60
60
60
5A
0A
8A
0A
50
40
30
20
10
0
50
40
30
20
10
0
50
40
30
20
10
0
5A
0A
80
100
120
80
100
120
80
100
120
Coil applied voltag
e
（
%V
）
Coil applied voltag
e
（
%V
）
Coil applied voltag
e
（
%V
）
Panasonic Corporation Electromechanical Control Business Division
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© Panasonic Corporation 2019
ASCTB180E 201903
3
DSP
4.-(1) Operate & release time
(without diode, 1 Form A)
4.-(2) Operate & release time
(without diode, 1 Form A 1 Form B)
4.-(3) Operate & release time
(without diode, 2 Form A)
Tested sample
：
DSP1a-12V DC, 5 pcs.
Tested sample
：
DSP1-12V DC, 5 pcs.
Tested sample
：
DSP2a-12V DC, 5 pcs.
7
9
9
8
7
6
8
7
6
6
5
Operate time
Operate time
4
3
2
1
0
5
5
4
3
2
1
0
Max.
Operate time
4
Ave.
Min.
Max.
Ave.
Min.
Max.
Ave.
3
2
1
0
Min.
Max.
Ave.
Min.
Release time
100
Release time
Max.
Ave.
Min.
Release time
100
Max.
Ave.
Min.
80
120
80
100
110
80
120
Coil applied voltag
e
（
%V
）
Coil applied voltag
e
（
%V
）
Coil applied voltag
e
（
%V
）
4.-(4) Operate & release time
(with diode, 1 Form A)
4.-(5) Operate & release time
(with diode, 1 Form A 1 Form B)
4.-(6) Operate & release time
(with diode, 2 Form A)
Tested sample
：
DSP1a-12V DC, 5 pcs.
Tested sample
：
DSP1-12V DC, 5 pcs.
Tested sample
：
DSP2a-12V DC, 5 pcs.
9
9
9
8
7
6
8
8
7
Max.
7
6
6
Operate time
Ave.
Operate time
5
4
3
2
1
0
5
4
3
2
1
0
Operate time
Release time
5
4
3
2
Min.
Max.
Ave.
Min.
Max.
Ave.
Min.
Max.
Ave.
Min.
Max.
Ave.
Min.
Max.
Ave.
Min.
Release time
100
Release time
1
0
80
120
80
100
110
80
100
120
Coil applied voltag
e
（
%V
）
Coil applied voltag
e
（
%V
）
Coil applied voltag
e
（
%V
）
5.-(1) Change of pick-up and drop-out voltage
(1 Form A)
5.-(2) Change of pick-up and drop-out voltage
(1 Form A 1 Form B)
5.-(3) Change of pick-up and drop-out voltage
(2 Form A)
Tested sample
：
DSP1a-12V DC, 5 pcs.
Tested sample
：
DSP1-12V DC, 5 pcs.
Tested sample
：
DSP2a-12V DC, 5 pcs.
30
30
30
20
20
20
10
Release voltage
Operate voltage
10
10
Operate voltage
ｰ
60
ｰ
40
ｰ
20
0
ｰ
60
ｰ
40
ｰ
20
0
ｰ
60
ｰ
40
ｰ
20
0
Release voltage
Release voltage
20 40
60 80
100
20 40
60 80
100
20 40
60 80
100
Ambient
Ambient
Ambient
temperatur
（
e
℃
）
temperatur
（
e
℃
）
temperatur
（
e
℃
）
Operate voltage
ｰ
10
ｰ
20
ｰ
30
ｰ
10
ｰ
20
ｰ
30
ｰ
10
ｰ
20
ｰ
30
6.-(1) Influence of adjacent mounting
6.-(2) Influence of adjacent mounting
6.-(3) Influence of adjacent mounting
(1 Form A)
(1 Form A 1 Form B)
(2 Form A)
Tested sample
：
DSP1a-12V DC, 5 pcs.
Tested sample
：
DSP1-12V DC, 5 pcs.
Tested sample
：
DSP2a-12V DC, 5 pcs.
15
15
10
8
A
B
C
A
B
C
A B C
10
10
ℓ
ℓ
ℓ
ℓ
ℓ ℓ
6
4
2
A, C
A, C
A, C
5
Operate voltage
Operate voltage
Release voltage
5
Operate voltage
relays
relays
relays
are not
are not
are not
energized
energized
energized
0
15
10
5
15
10
5
0
A, C
A, C
A, C
relays
are
relays
are
relays
are
ｰ
2
ｰ
4
energized
energized
energized
ｰ
6
Release voltage
5
Release voltage
5
ｰ
8
ｰ
10
0
0
10
1
2
3
4
5
6
10
Inter-relay distanc
e
（
ℓ
）
, mm
Inter-relay distanc
e
（
ℓ
）
, mm
Inter-relay distanc
e
（
ℓ
）
, mm
Panasonic Corporation Electromechanical Control Business Division
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© Panasonic Corporation 2019
ASCTB180E 201903
4
DSP
(mm)
CAD
The CAD data of the products with a “CAD” mark can be downloaded from our Website.
DIMENSIONS
1. 1 Form A type
CAD
External dimensions
Single side stable
20.2
2 coil latching
20.2
4
ｰ
0.8
4
ｰ
0.3
6
ｰ
0.8
.
6
ｰ
0 3
7.62
1.21
7.62 7.62
2.54
7.62
1.21
7.62
10.16
PC board pattern (Bottom view)
Schematic (Bottom view)
Single side stable
2 coil latching
Single side stable
2 coil latching
7.62
10.16
7.62 7.62
2.54
16
－
15 16
－
－
＋
1
＋
2
＋
1
8
5
8
5
(Deenergized condition)
(Reset condition)
4
ｰ
1.2dia.
6
ｰ
1.2dia.
Tolerance
±
0.1
Tolerance
±
0.1
2. 1 Form A 1 Form B type
CAD
External dimensions
Single side stable
20.2
2 coil latching
20.2
6
ｰ
0.8
6
ｰ
0.3
8
ｰ
0.8
8
ｰ
0.3
1.21
7.62
10.16
7.62
1.21
7.62 7.62
2.54
7.62
General tolerance
±
0.3
General tolerance
±
0.3
PC board pattern (Bottom view)
Schematic (Bottom view)
Single side stable
2 coil latching
Single side stable
2 coil latching
7.62
10.16
7.62 7.62
2.54
9
12
16
－
9
12
15 16
－
－
＋
1
＋
2
＋
1
8
5
8
5
(Deenergized condition)
(Reset condition)
6
ｰ
1.2dia.
8
ｰ
1.2dia.
Tolerance
±
0.1
Tolerance
±
0.1
3. 2 Form A type
CAD
External dimensions
Single side stable
20.2
2 coil latching
20.2
6
ｰ
0.8
6
ｰ
0.3
8
ｰ
0.8
8
ｰ
0.3
1.21
7.62
10.16
7.62
1.21
7.62 7.62
2.54
7.62
General tolerance
±
0.3
General tolerance
±
0.3
PC board pattern (Bottom view)
Schematic (Bottom view)
Single side stable
2 coil latching
Single side stable
2 coil latching
7.62
10.16
7.62 7.62
2.54
9
12
16
－
9
12
15 16
－
－
＋
1
＋
2
＋
1
8
5
8
5
(Deenergized condition)
(Reset condition)
6
ｰ
1.2dia.
8
ｰ
1.2dia.
Tolerance
±
0.1
Tolerance
±
0.1
Panasonic Corporation Electromechanical Control Business Division
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© Panasonic Corporation 2019
ASCTB180E 201903
5
DSP
SAFETY STANDARDS
UL (Recognized)
CSA (Certified)
Contact rating
TÜV (Certified)
Contact rating
Item
File No.
E43028
Contact rating
File No.
File No.
B 13 11
13461 342
8A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
B300
LR26550
8A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
B300
8A 250V AC (cosφ =1.0)
5A 250V AC (cosφ =0.4)
5A 30V DC (0 ms)
1 Form A
E43028
5A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
30W Max.: 1A 30V DC-0.24A
125V DC
LR26550
5A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
30W Max.: 1A 30V DC-0.24A
125V DC
B 13 11
13461 342
5A 250V AC (cosφ =1.0)
3A 250V AC (cosφ =0.4)
5A 30V DC (0 ms)
1 Form A
1 Form B
B300
E43028
5A 125/250V AC General use
1/10HP 125/250V AC
5A 30V DC Resistive
LR26550
5A 125/250V AC General use
1/10HP 125/250V AC
5A 30V DC Resistive
B 13 11
13461 342
5A 250V AC (cosφ =1.0)
3A 250V AC (cosφ =0.4)
5A 30V DC (0 ms)
2 Form A
* Remarks: The standard certified for may differ depending on where the product was manufactured.
NOTES
1. For cautions for use, please read
“GENERAL APPLICATION
GUIDELINES”.
4. External magnetic field
Since DSP relays are highly sensitive
polarized relays, their characteristics will
be affected by a strong external magnetic
field. Avoid using the relay under that
condition.
2. Soldering conditions
Please obey the following conditions
when soldering automatically.
1) Preheating: Within 120°C
248°F
and
within 120 seconds
2) Soldering iron: 260°C±5°C
500°F±41°F
and within 6 seconds
3. Cleaning
For automatic cleaning, the boiling
method is recommended. Avoid
ultrasonic cleaning which subjects the
relays to high frequency vibrations, which
may cause the contacts to stick.
It is recommended that a fluorinated
hydrocarbon or other alcoholic solvents
be used.
5. Coil operating power
Pure 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, check it with the actual circuit
since the characteristics may be slightly
different.
6. When using, please be aware that
the a contact and b contact sides of
1 Form A 1 Form B type may go on
simultaneously at operate time and
release time.
Please refer to
“the latest product specifications”
when designing your product.
• Requests to customers :
Panasonic Corporation Electromechanical Control Business Division
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© Panasonic Corporation 2019
ASCTB180E 201903
6
DSP RELAYS
ACCESSORIES
TYPES
PC BOARD SOCKETS
Part No.
Product name
For Single side stable
DSP1a-PS
For 2 coil latching
DSP1a-PSL2
For DSP1a
For DSP1a, DSP1, DSP2a
DSP2a-PS
DSP2a-PSL2
Standard packing: Carton: 50 pcs.; Case: 500 pcs.
TYPES AND APPLICABLE REL
A
Y
S
SPECIFICATIONS
Type No.
Item
Specifications
For DSP1a
For DSP1a, DSP1, DSP2a
3,000 Vrms between terminals
(Except for the portion between coil terminals)
Breakdown voltage
Applicable
relays
DSP1a-PS DSP1a-PSL2 DSP2a-PS DSP2a-PSL2
Insulation resistance
Heat resistance
1,000 MΩ between terminals at 500 V
DSP1a relays
DSP1a-L2 relays
DSP1 relays
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
150°C
302°F
for 1 hour
8 A (DSP1a-PS and DSP1a-PSL2),
5 A (DSP2a-PS and DSP2a-PSL2)
Max. continuous current
DSP1-L2 relays
DSP2a relays
DSP2a-L2 relays
(mm)
CAD
The CAD data of the products with a “CAD” mark can be downloaded from our Website.
DIMENSIONS
External dimensions
PC board pattern (Bottom view)
CAD
DSP1a-PS, DSP1a-PSL2
DSP2a-PS, DSP2a-PSL2
23
±
0.6
2 coil latching type only
2 coil latching type only
15
16
1
9
12 15
5
16
1
2 coil latching type only
8
5
2
8
2
1.2dia. 2.54
1.2dia. 2.54
2 coil latching type only
2 coil latching type only
Tolerance
±
0.1
Tolerance
±
0.1
Not
e
：
Terminal No.2 and 15 are for
Not
e
：
Terminal No.2 and 15 are for
DSP1a-PSL2 only.
DSP2a-PSL2 only.
4
ｰ
0.8
±
0.1
0.65
±
0.1
2.61
7.62
10.16
7.62
7.62
2.54
General tolerance
±
0.3
FIXING AND REMOVAL METHOD
1. Match the direction of relay and socket.
3. Remove the relay, applying force in the
direction shown below.
4. In case there is not enough space for
finger to pick relay up, use screw drivers
in the way shown below.
2. Both ends of relays are fixed so tightly
that the socket hooks on the top surface
of relays.
Notes: 1. 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.
2. It is hazardous to use IC chip sockets.
industrial.panasonic.com/ac/e/
© Panasonic Corporation 2019
ASCTB266E 201903
2019.03
1
GUIDELINES FOR POWER REL
A
Y
S AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
For cautions for use, please read “GUIDELINES FOR REL
A
Y
U
SAGE”.
Precautions for Coil Input
Long term current carrying
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.
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.
Operate voltage change due to coil temperature rise
(Hot start)
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.
In DC relays, after continuous passage of current in the coil, if the
current is turned OF
F
,
t
hen 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
Usage, Transport, and Storage Conditions
Dew condensation
During usage, storage, or transportation, avoid locations
subjected to direct sunlight and maintain normal temperature,
humidity and pressure 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.
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.)
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
1)
T
e
mperature:
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 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
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
Humidity, %R.H.
85
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
Allowable range
(Avoid
(Avoid icing
condensation
when used at
when used at
temperatures
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.
temperatures
lower than 0
°
C)
higher than
)
0
°
C
5
–40
0
85
Ambient temperature,
°
C
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
c
Panasonic Corporation 2019
ASCTB412E 201903
-1-
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
Package
NOx Generation
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.
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.
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).
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:
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
c
Panasonic Corporation 2019
ASCTB412E 201903
-2-
2019
ASCTB180E-2 201903
