Power Relays ( Over 2A )
LQ RELAYS
Product Catalog
2024.5
Power Relays ( Over 2 A )
LQ RELAYS
Compliant with IEC/EN60335-1*1*2 /EN60079-15*3 1 Form A/1 Form C 10 A small power relays
FEATURES
Protective construction: Sealed
● Compact with high capacity:
1 Form A / 1 Form C, 10 A
20
● Inrush/reinforced insulation type has TV-3
rating ( UL/C-UL approved )
10
1
2
● Compliant with IEC/EN60335-1 * *
( VDE approved )
16
*1: Common safety standard for major electrical appliance
*2: 1 Form A type is compatible except for the bottom surface
3
● Compliant with IEC/EN60079-15 *
*3: Explosion-proof certification
TYPICAL APPLICATIONS
（Unit：mm）
● Home appliance
● Industrial equipment
ORDERING INFORMATION ( PART NO. )
ALQ
Contact arrangement
1：1 Form C Standard type
3：1 Form A Standard type
6：1 Form A Inrush/reinforced insulation type
Coil insulation class
Nil：Class B insulation
Ｆ ：Class F insulation
Rated coil voltage（DC）
05：5 V, 06：6 V, 09：9 V, 12：12 V, 18：18 V, 24：24 V
Packing style
Nil：Carton
S ：Tube
Notes) 1: The "S" at the end of the part number only appears on the inner and outer packing.
It does not appear on the relay itself.
2: 48V DC types is also available. Please contact our sales representative for details.
3: Inrush/reinforced insulation type are Class F insulation, 12 V DC, 24 V DC only.
4: Reflow mounting compatible products (Flux-resistant type) are also available.
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Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
TYPES
■ Standard type
Contact arrangement
Part No. *
Rated coil voltage
1 Form A
1 Form C
Standard packing
Class B insulation
Class F insulation
5 V DC
ALQ305
ALQ3F05
6 V DC
ALQ306
ALQ3F06
9 V DC
ALQ309
ALQ3F09
12 V DC
ALQ312
ALQ3F12
18 V DC
ALQ318
ALQ3F18
24 V DC
ALQ324
ALQ3F24
5 V DC
ALQ105
ALQ1F05
6 V DC
ALQ106
ALQ1F06
9 V DC
ALQ109
ALQ1F09
12 V DC
ALQ112
ALQ1F12
18 V DC
ALQ118
ALQ1F18
24 V DC
ALQ124
ALQ1F24
Inner carton
Outer carton
Carton: 100 pcs.
Tube: 50 pcs.
Carton: 500 pcs.
Tube: 1,000 pcs.
* Tube packing types available. When ordering, please add suffix " S ".
Reflow mounting compatible products ( Flux-resistant type ) and Inrush type/Reinforced insulation compatible products,please contact our sales representative for
details.
■ Inrush /reinforced insulation type
Contact arrangement
1 Form A
Rated coil
voltage
Part No.*
12 V DC
ALQ6F12
24 V DC
ALQ6F24
Standard packing
Inner carton
Outer carton
Carton: 100 pcs.
Tube: 50 pcs.
Carton: 500 pcs.
Tube: 1,000 pcs.
* Tube packing types available. When ordering, please add suffix " S ".
RATING
■ Coil data
• Operating characteristics such as " Operate voltage " and " Release voltage " are influenced by mounting conditions or
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.
● Standard type
Contact
arrangement
Rated coil
voltage
Operate
voltage*1
( at 20 ℃ )
Release
voltage*1
( at 20 ℃ )
Max. 75 ％ V
of rated coil
voltage
( initial )
Min. 5 ％ V
of rated coil
voltage
( initial )
5 V DC
6 V DC
1 Form A
9 V DC
12 V DC
18 V DC
Rated operating
current
( ±10 ％, at 20 ℃ )
40
mA
125
Ω
33.3 mA
180
Ω
22.2 mA
405
Ω
16.7 mA
720
Ω
11.1 mA
1,620
Ω
8.3 mA
2,880
Ω
24 V DC
1 Form C
5 V DC
80
6 V DC
66.7 mA
9 V DC
12 V DC
18 V DC
24 V DC
Max. 75 ％ V
of rated coil
voltage
( initial )
Min. 5 ％ V
of rated coil
voltage
( initial )
Coil resistance
( ±10 ％, at 20 ℃ )
mA
44.4 mA
Rated
operating
power
Max. allowable
voltage
200 mW
130 ％ of rated coil
voltage ( at 85 ℃ ) *2
180 ％ of rated coil
voltage ( at 20 ℃ )
400 mW
110 ％ of rated coil
voltage ( at 85 ℃ ) *2
150 ％ of rated coil
voltage ( at 20 ℃ )
62.5 Ω
90
Ω
202.5 Ω
33.3 mA
360
Ω
22.2 mA
810
Ω
16.7 mA
1,440
Ω
*1: Square, pulse drive
*2: When using relays in a high ambient temperature, consider the operate voltage rise due to the high temperature ( a rise of approx. 0.4 ％ V for each 1 ℃ with 20 ℃
as a reference ) and use a coil impressed voltage that is within the maximum applied voltage range.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー2ー
Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
● Inrush/reinforced insulation type
Contact
arrangement
Operate
voltage*1
( at 20 ℃ )
Release
voltage*1
( at 20 ℃ )
Rated operating
current
( ±10 ％, at 20 ℃ )
Max. 80 ％ V
of rated coil
voltage
( initial )
Min. 5 ％ V
of rated coil
voltage
( initial )
16.7 ｍA
720 Ω
8.3 ｍA
2,880 Ω
Rated coil
voltage
12 V DC
1 Form A
24 V DC
Coil resistance
( ±10 ％, at 20 ℃ )
Rated
operating
power
Max. allowable
voltage
200 ｍＷ
130 ％ of rated coil
voltage ( at 85 ℃ )*2
180 ％ of rated coil
voltage ( at 20 ℃ )
*1: Square, pulse drive
*2: When using relays in a high ambient temperature, consider the operate voltage rise due to the high temperature ( a rise of approx. 0.4 ％ V for each 1 ℃ with 20 ℃
as a reference ) and use a coil impressed voltage that is within the maximum applied voltage range.
■ Specifications
Specifications
Item
Contact arrangement
1 Form A
Contact resistance
( initial )
Max. 100 mΩ ( by voltage drop 6 V DC 1 A )
Contact material
AgNi type
Contact rating
( resistive )
1 Form C
Dielectric
strength
( initial )
Surge
withstand
voltage
( initial ) *2
Time
characteristics
( initial )
1 Form A
AgSnO2 type ( Movable ) /
AgNi type ( Stationary )
Form A contact: 10 A 125 V AC,
5 A 250 V AC,
5 A 30 V DC
5 A 30 V DC,
10 A 125 V AC,
5 A 250 V AC
Form B contact: 3 A 125 V AC,
2 A 250 V AC,
1 A 30 V DC
Contact data
Form A contact: 1,250 VA,
150 W
Max. switching
power
( resistive )
1,250 VA, 150 W
Max. switching
voltage
250 V AC, 30 V DC
Max. switching
current
10 A ( 125 V AC ) , 5 A ( 30 V DC )
Min. switching load
( reference value ) *1
100 mA 5 V DC
Insulation resistance ( initial )
Inrush/
reinforced insulation type
Standard type
Form B contact:
500 VA,
30 W
10 A 125 V AC,
8 A 250 V AC,
5 A 30 V DC
2000 VA, 150 W
Min. 1,000 MΩ ( at 500 V DC, Measured portion is the same as the case of dielectric strength )
Between open
contacts
1,000 V rms for 1 min
( detection current: 10 mA )
750 V rms for 1 min
( detection current: 10 mA )
Between contact and
coil
4,000 V rms for 1 min ( detection current: 10 mA )
Between contact and
coil
8,000 V
Operate time
Max. 20 ms ( at rated coil voltage, at 20 ℃, without bounce )
1,000 V rms for 1 min
( detection current: 10 mA )
Release time
Max. 20 ms ( at rated coil voltage, at 20 ℃, without bounce, with diode )
Shock
resistance
Functional
294 m/s2
( half-sine shock pulse: 11 ms,
detection time: 10 µs )
Destructive
980 m/s2 ( half-sine shock pulse: 6 ms )
Vibration
resistance
Functional
10 to 55 Hz ( at double amplitude of 1.6 mm, detection time: 10 µs )
Destructive
10 to 55 Hz ( at double amplitude of 2 mm )
Expected life
Mechanical life
Min. 10 × 106 ope. ( at 180 times/min )
Conditions
Conditions for
usage, transport and
storage*3
Ambient temperature: −40 to ＋85 ℃*4 ( −40 to ＋60 ℃ at our standard packing condition )
Humidity: 5 to 85 ％ RH ( Avoid icing and condensation )
Unit weight
196 m/s2
( half-sine shock pulse: 11 ms,
detection time: 10 µs )
294 m/s2
( half-sine shock pulse: 11 ms,
detection time: 10 µs )
Approx. 7 g
Notes) Specifications will vary with foreign standards certification ratings.
*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 × 50 µs according to JEC-212-1981
*3: For ambient temperature, please read " GUIDELINES FOR RELAY USAGE ".
*4: When using relays in a high ambient temperature, consider the operate voltage rise due to the high temperature ( a rise of approx. 0.4 ％ V for each 1 ℃ with 20 ℃
as a reference ) and use a coil impressed voltage that is within the maximum applied voltage range.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー3ー
Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
■ Expected electrical life
Condition: at 20 ℃, with diode
Type
Load
Switching capacity
1 Form A
Standard
type
Form A
contact
Resistive load
Number of operations
5 A 30 V DC
100 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
10 A 125 V AC
50 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
5 A 250 V AC
50 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
5 A 30 V DC
100 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
10 A 125 V AC
50 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
5 A 250 V AC
50 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
3 A 125 V AC
200 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
2 A 250 V AC
200 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
1 A 30 V DC
100 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
10 A 250 V AC
50 × 103 ope.
( Switching frequency ON: OFF ＝ 1 s: 9 s )
8 A 250 V AC
100 × 103 ope.
( Switching frequency ON: OFF ＝ 1 s: 9 s )
5 A 30 V DC
100 × 103 ope.
( Switching frequency ON: OFF ＝ 1.5 s: 1.5 s )
1 Form C
Form B
contact
Inrush/
reinforced
insulation
type
Resistive load
1 Form A
Capacitor load
inrush 40 A peak/100 µs
steady 1 A rms 250 V AC
100 × 103 ope.
( Switching frequency ON: OFF ＝ 1 s: 9 s )
Motor load
inrush 30 A peak/0.5 s
steady 3 A rms cosφ ＝ 0.5 250 V AC
300 × 103 ope.
( Switching frequency ON: OFF ＝ 1 s: 9 s )
REFERENCE DATA
1-1. Max. switching capacity
( Standard type: 1 Form A )
1-2. Max. switching capacity
( Standard type: 1 Form C )
1-3. Max. switching capacity
( Inrush/reinforced insulation type: 1 Form A )
Ambient temperature：normal temperature
AC resistive load
5
10
5
3
2
Contact current（A）
Contact current（A）
Contact current（A）
10
100
100
100
AC resistive load Form A contact
AC resistive load Form B contact
10
100
Contact voltage（V）
1,000
AC resistive load
1
1
1
10
8
10
100
Contact voltage（V）
1,000
10
100
Contact voltage（V）
1,000
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Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
2. Switching life curve
3-2. Coil temperature characteristics
3-1. Coil temperature characteristics
( Standard type,
( Standard type: Form A contact )
( Standard type: 1 Form C )
Inrush/reinforced insulation type: 1 Form A )
Measured portion：Coil inside
Contact carrying current：5A, 10A
Temperature rise（℃）
No. of operations（×10 4）
100
125V AC
resistive load
10
250V AC
resistive load
1
0
2
4
6
8
Contact current（A）
10
4-1. Ambient temperature characteristics
( Standard type: 1 Form A )
Contact carrying current：5A, 10A
Measured portion：Coil inside
Contact carrying current：5A, 10A
70
70
60
60
Temperature rise（℃）
Ambient temperature：normal temperature
10A 85℃
50
10A 70℃
40
5A 70℃
30
5A 85℃
5A 70℃
40
5A 85℃
30
20
10
10
100
10A 70℃
50
20
0
10A 85℃
0
120
140
160
180
Coil applied voltage（%V）
100
110 120 130 140 150
Coil applied voltage（%V）
160
4-2. Ambient temperature characteristics 4-3. Ambient temperature characteristics
( Standard type: 1 Form C )
( Inrush/reinforced insulation type: 1 Form A )
Contact carrying current：5A, 10A
Contact carrying current：10A
400
400
400
②
300
200
③
④
⑥
100
Coil applied voltage（%V）
Coil applied voltage（%V）
Coil applied voltage（%V）
①
300
①
②
③
200
④
⑥
0
20
30
⑦
40 50 60 70 80
Ambient temperature（°
C）
⑤
90
⑨
200
⑩
100
100
⑤
⑧
300
0
20
30
⑦
40 50 60 70 80
Ambient temperature（°
C）
⑪
90
0
20
30
40 50 60 70 80
Ambient temperature（°
C）
90
① Allowable ambient temperature against % coil voltage ( max. inside the coil temperature set as 130℃) ( Carrying current：5 A )
② Allowable ambient temperature against % coil voltage ( max. inside the coil temperature set as 130℃) ( Carrying current：10 A )
③ Allowable ambient temperature against % coil voltage ( max. inside the coil temperature set as 115℃) ( Carrying current：5 A )
④ Allowable ambient temperature against % coil voltage ( max. inside the coil temperature set as 115℃) ( Carrying current：10 A )
⑤ Operate voltage with a hot-start condition of 100%V on the coil ( Carrying current：10 A )
⑥ Operate voltage with a hot-start condition of 100%V on the coil ( Carrying current：5 A )
⑦ Operate voltage
⑧ Allowable ambient temperature against % coil voltage ( max.inside the coil temperature set as 155℃ ) ( Carrying current：10 A )
⑨ Allowable ambient temperature against % coil voltage ( max.inside the coil temperature set as 115℃ ) ( Carrying current：10 A )
⑩ Operate voltage with a hot-start condition of 100%V On the coil ( Carrying current：10 A )
⑪ Operate voltage
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Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
DIMENSIONS ( Unit: mm )
CAD The CAD data of the products with a
CAD
mark can be downloaded from our Website.
■ Standard type, Inrush/reinforced insulation type
● 1 Form A
CAD
10
External dimensions
Recommended
Schematic
PC board pattern
( BOTTOM VIEW )
( BOTTOM VIEW )
10.16
7.62
4ｰφ1.3
7.62
20
3.8
0.4
16
Tolerance ±0.1
φ0.5
1.11
0.3
10.16
7.62
0.3
0.8
7.62
General tolerance
Less than 1 mm：±0.2
Min. 1 mm less than 5 mm：±0.3
Min. 5 mm：±0.4
■ Standard type
● 1 Form C
CAD
Recommended
PC board pattern
( BOTTOM VIEW )
10
External dimensions
10.16 5.08
20
Schematic
( BOTTOM VIEW )
2.54
7.62
5ｰφ1.3
3.8
0.4
16
Tolerance ±0.1
φ0.5
1.11
0.3
0.3
0.3
10.16 5.08
2.54
0.8
7.62
General tolerance
Less than 1 mm：±0.2
Min. 1 mm less than 5 mm：±0.3
Min. 5 mm：±0.4
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Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
SAFETY STANDARDS
Each standard may be updated at any time, so please check our Website for the latest information.
■ UL/C-UL ( Approved )
● Standard type
1 Form A ( ALQ3**** )
File No.
Contact rating
Operations
File No.
Contact
Contact rating
Operations
Ambient
temperature
10 A 277 V AC General use
6 × 103
40 ℃
10 A 277 V AC General use
6 × 103
40 ℃
5 A 277 V AC General use
100 × 103
40 ℃
5 A 277 V AC General use
100 × 103
40 ℃
5 A 277 V AC General use
50 × 103
85 ℃
5 A 277 V AC General use
50 × 103
85 ℃
5 A 240 V AC General use
6 × 103
105 ℃
10 A 125 V AC General use
50 × 103
40 ℃
10 A 125 V AC General use
50 × 103
40 ℃
10 A 125 V AC General use
10 × 103
85 ℃
10 A 125 V AC General use
10 × 103
85 ℃
5 A 30 V DC General use
100 × 103
40 ℃
5 A 30 V DC General use
100 × 103
40 ℃
5 A 30 V DC General use
50 × 103
85 ℃
5 A 30 V DC General use
50 × 103
85 ℃
5 A 240 V AC Resistive
100 × 103
80 ℃
4 A 125 V AC Resistive
100 × 103
105 ℃
1
103
40 ℃
7 A 125 V AC Resistive
100 × 103
75 ℃
1
103
8.75 A 240 V AC Resistive
100 × 103
85 ℃
4 FLA/ 4 LRA 277 V AC
100 × 103
105 ℃
1
103
40 ℃
3 FLA/18 LRA 240 V AC
100 × 103
85 ℃
1
3
40 ℃
1 A 240 V AC Pilot Duty
100 × 103
80 ℃
100 × 103
105 ℃
3 A 120 V AC Pilot Duty
100 × 103
85 ℃
6 × 103
105 ℃
75 ℃
6 × 10
3
6 × 103
10 A 277 V AC General use
( Class F only )
105 ℃
3
85 ℃
/6 HP 277 V AC
/6 HP 125 V AC
4 FLA/4 LRA 277 V AC
E43028
1 Form C ( ALQ1**** )
Ambient
temperature
2 FLA/12 LRA 120 V AC
2.3 A 240 V AC Pilot Duty
10
N.O.
/6 HP 277 V AC
/6 HP 125 V AC
E43028
40 ℃
1.5 A 125 V AC Pilot Duty
100 × 103
80 ℃
3 A 125 V AC General use
100 × 10
1 A 125 V AC Pilot Duty
100 × 103
105 ℃
2 A 277 V AC General use
100 × 103
85 ℃
1 A 240 V AC Pilot Duty
100 × 103
105 ℃
1 A 30 V DC General use
100 × 103
85 ℃
75 ℃
2 A 30 V DC Resistive
100 × 103
40 ℃
105 ℃
3 A 240 V AC Resistive
100 × 103
80 ℃
2 A 120 V AC Pilot Duty
100 × 103
80 ℃
100 × 10
3
6 × 10
3
6 × 10
3
75 ℃
1.5 A 24 V AC Inductive
( pf 0.35 )
500 × 103
25 ℃
1 A 250 V AC Inductive
( pf 0.35 )
500 × 103
25 ℃
1.5 A 125 V AC Inductive
( pf 0.5 )
500 × 103
25 ℃
6 × 103
105 ℃
0.5 A 30 V DC Pilot Duty
2 A 120 V AC Tungsten
1 A 240 V AC Tungsten
10 A 277 V AC General use
( Class F only )
N.C.
* Pilot Duty comply with UL508 conditions
● Inrush/reinforced insulation type
1 Form A ( ALQ6F*** )
File No.
Contact rating
8 A 277 V AC General use
1
E43028
/2 HP 250 V AC
10 A 125 V AC General use
5 A 30 V DC Resistive
Operations
Ambient
temperature
6 × 103
105 ℃
103
40 ℃
6 × 103
105 ℃
6 × 103
105 ℃
■ CSA ( Approved )
CSA standard approved by C-UL
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Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
Power Relays ( Over 2 A ) LQ RELAYS
■ VDE ( Approved )
● Standard type
1 Form A ( ALQ 3**** )
Contact rating
Operations
10 A 250 V AC ( cosφ ＝ 1.0 )
10 × 103
10 A 250 V AC ( cosφ ＝ 0.4 )
3
5 A 250 V AC ( cosφ ＝ 1.0 )
50 × 103
85 ℃
5 A 30 V DC ( 0 ms )
10 × 103
85 ℃
File No.
40032836
1 Form C ( ALQ 1**** )
Ambient
temperature
10 × 10
Contact rating
Operations
Ambient
temperature
85 ℃
10 A 250 V AC ( cosφ ＝ 1.0 )
10 × 103
85 ℃
85 ℃
10 A 250 V AC ( cosφ ＝ 0.4 )
10 × 103
85 ℃
5 A 250 V AC ( cosφ ＝ 1.0 )
50 × 103
85 ℃
5 A 30 V DC ( 0 ms )
10 × 103
85 ℃
3 A 250 V AC ( cosφ ＝ 0.4 )
10 × 103
85 ℃
File No.
40032836
Contact
N.O.
N.C.
● Inrush/reinforced insulation type
1 Form A ( ALQ6F*** )
Contact rating
Operations
Ambient
temperature
8 A 250 V AC ( cosφ ＝ 1.0 )
103
105 ℃
10 A 250 V AC ( cosφ ＝ 0.4 )
103
85 ℃
103
105 ℃
File No.
40032836
5 A 30 VDC ( 0 ms )
■ TV rating
● Inrush/reinforced insulation type
1 Form A ( ALQ6F*** )
File No.
E43028
Contact rating
TV-3
■ CQC ( Approved )
● Standard type
( Inrush/reinforced insulation type is not approved )
1 Form A ( ALQ3**** )
File No.
CQC14002108384
1 Form C ( ALQ1**** )
Contact rating
File No.
5 A 250 V AC
Contact
CQC14002108384
Contact rating
N.O.
5 A 250 V AC
N.C.
2 A 250 V AC
INSULATION CHARACTERISTICS ( IEC61810-1 )
Item
Clearance/Creepage distance ( IEC61810-1 )
Characteristic
Standard type
1 Form A: Min. 4.0 mm/Min. 4.0 mm,
1 Form C: Min. 3.5 mm/Min. 3.5 mm
Inrush/reinforced insulation type
Min. 5.5 mm/5.5 mm
Category of protection ( IEC61810-1 )
RTⅢ
Tracking resistance ( IEC60112 )
PTI 175
Insulation material group
III a
Over voltage category
III
Rated voltage
250 V
Pollution degree
2
Type of insulation ( Between contact and coil )
Type of insulation ( Between open contacts )
Standard type
Basic insulation
Inrush/reinforced insulation type
Reinforced insulation
Micro disconnection
Note) Standard type : Actual value
Inrush/reinforced insulation type: EN/IEC VDE certified.
GUIDELINES FOR USAGE
■ For cautions for use, please read " GUIDELINES FOR RELAY USAGE ".
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
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ー8ー
Panasonic Industry Co., Ltd. 2024
ASCTB92E 202405
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
■ For cautions for use, please read " GUIDELINES FOR RELAY USAGE ".
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Precautions for Coil Input
■ Long term current carrying
■ Coil connection
A circuit that will be carrying a current continuously for
When connecting coils of polarized relays, please check coil
long periods without relay switching operation. ( circuits
polarity ( ＋, − ) at the internal connection diagram
for emergency lamps, alarm devices and error inspection
that, for example, revert only during malfunction and
( Schematic ). If any wrong connection is made, it may
cause unexpected malfunction, like abnormal heat, fire and
output warnings with form B contacts ) Continuous, long-
so on, and circuit do not work. Avoid impressing voltages to
term current to the coil will facilitate deterioration of coil
insulation and characteristics due to heating of the coil itself.
the set coil and reset coil at the same time.
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.
■ Maximum allowable voltage and temperature
rise
■ 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.
Proper usage requires that the rated coil voltage be
impressed on the coil. Note, however, that if a voltage
greater than or equal to the maximum continuous voltage
is impressed on the coil, the coil may burn or its layers short
due to the temperature rise. Furthermore, do not exceed the
usable ambient temperature range listed in the catalog.
● Operate voltage change due to coil temperature rise
In DC relays, after continuous passage of current in
the coil, if the current is turned OFF, then immediately
turned ON again, due to the temperature rise in the
coil, the operate voltage will become somewhat
higher. Also, it will be the same as using it in a higher
temperature atmosphere. The resistance/temperature
relationship for copper wire is about 0.4 % for 1 ℃,
and with this ratio the coil resistance increases. That
is, in order to operate of the relay, it is necessary that
the voltage be higher than the operate voltage and the
operate voltage rises in accordance with the increase
in the resistance value. However, for some polarized
relays, this rate of change is considerably smaller.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー9ー
Panasonic Industry Co., Ltd. 2023
ASCTB412E 202301
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
Ambient Environment
■ Usage, Transport, and Storage Conditions
During usage, storage, or transportation, avoid locations
●Icing
subjected to direct sunlight and maintain normal
Condensation or other moisture may freeze on relays
when the temperature become lower than 0 ℃.This
temperature, humidity and pressure conditions.
●Temperature/Humidity/Pressure
icing causes the sticking of movable portion, the
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
operation delay and the contact conduction failure etc.
Panasonic Industry Co., Ltd. does not guarantee the
the individual specifications.
failures caused by the icing.
The heat conduction by the equipment may accelerate
Also allowable humidity level is influenced by
the cooling of relay itself and the icing may occur.
temperature, please check charts shown below and
Please conduct product evaluations in the worst
condition of the actual usage.
use relays within mentioned conditions. ( Allowable
temperature values differ for each relays, please refer
to the relay's individual specifications. )
1) Temperature:
The tolerance temperature range differs for
each relays, please refer to the relay's individual
specifications
2) Humidity: 5 to 85 % RH
●Low temperature and low humidity
The plastic becomes brittle if the relay 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.
Humidity (％ RH)
85
Allowable range
Avoid icing
when used at
temperatures
lower than 0°C
Avoid condensation when
used at temperatures higher
than 0°C
●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.
5
-40
0
85
Ambient temperature (℃)
3) Pressure: 86 to 106 kPa
●Silicon
●Dew condensation
Condensation occurs when the ambient temperature
drops suddenly from a high temperature and humidity,
or the relay is suddenly transferred from a low ambient
temperature to a high temperature and humidity.
Condensation causes the failures like insulation
deterioration, wire disconnection and rust etc.
Panasonic Industry Co., Ltd. does not guarantee the
failures caused by condensation.
The heat conduction by the equipment may accelerate
the cooling of device itself, and the condensation may
occur.
Please conduct product evaluations in the worst
condition of the actual usage. ( Special attention should
be paid when high temperature heating parts are close
to the device. Also please consider the condensation
may occur inside of the device. )
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 sealed 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 ℃ ). If use at high humidity is unavoidable,
please contact our sales representative.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー 10 ー
Panasonic Industry Co., Ltd. 2023
ASCTB412E 202301
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
Others
■ Cleaning
• Cleaning with the boiling method is recommended ( The
• Although the environmentally sealed type relay ( plastic
sealed type, etc. ) can be cleaned, avoid immersing
temperature of cleaning liquid should be 40 ℃ or lower ).
the relay into cold liquid ( such as cleaning solvent )
immediately after soldering. Doing so may deteriorate the
Avoid ultrasonic cleaning on relays. Use of ultrasonic
cleaning may cause breaks in the coil or slight sticking of
sealing performance.
the contacts due to ultrasonic energy.
Please refer to "the latest product specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー 11 ー
Panasonic Industry Co., Ltd. 2023
ASCTB412E 202301
■ Global Sales Network Information: industrial.panasonic.com/ac/e/salesnetwork
Electromechanical Control Business Division
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
industrial.panasonic.com/ac/e/
©Panasonic Industry Co., Ltd. 2024
Specifications are subject to change without notice.
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2024.5
