Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
LF (ALF)
ASCTB195E 201202-T
ORDERING INFORMATION
TYPES
Standard packing: Carton 50 pcs., Case 200 pcs.
RATING
1. Coil data
Load for air conditioner
1a 20A power relays
LF RELAYS (ALF)
Contact arrangement Nominal coil voltage Part No.
TMP type PCB type
1 Form A
5V DC ALF1T05 ALF1P05
6V DC ALF1T06 ALF1P06
9V DC ALF1T09 ALF1P09
12V DC ALF1T12 ALF1P12
18V DC ALF1T18 ALF1P18
24V DC ALF1T24 ALF1P24
Nominal coil
voltage Pick-up voltage
(at 20°C 68°F)Drop-out voltage
(at 20°C 68°F)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power
(at 20°C 68°F)
Max. applied voltage
(at 20°C 68°F)
5V DC
70%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
180 mA 27.8Ω
900mW 110%V of
nominal voltage
6V DC 150 mA 40 Ω
9V DC 100 mA 90 Ω
12V DC 75 mA 160 Ω
18V DC 50 mA 360 Ω
24V DC 37.5mA 640 Ω
VDE
TMP type PCB type
RoHS compliant
FEATURES
1. Ideal for compressor and inverter
loads
1) Compressor load: 20A 250V AC
2) Inverter load: 20A 100V AC,
10A 200V AC
2. High insulation resistance
• Creepage distance and clearances
between contact and coil;
Creepage Min. 9.5mm .374inch/
Clearance Min. 8mm .315inch
• Surge withstand voltage: 10,000V
3. “PCB” and “TMP” types available
4. Conforms to the various safety
standards:
UL/C-UL, TÜV and VDE approv ed
TYPICAL APPLICATIONS
• Air conditioner
• Refrigerators
• OA equipment
LF relay
ALF
Terminal shape
T:
P: TMP type
PCB type
Nominal coil voltage, V DC
05: 5, 06: 6, 09: 9, 12: 12, 18: 18, 24: 24
Contact arrangement
1: 1 Form A
Note: Certified by UL/C-UL,VDE and TÜV
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
LF (ALF)
ASCTB195E 201202-T
2. Specifications
* Specifications will vary with foreign standards certification ratings.
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.
3. Switching capacity
REFERENCE DATA
Characteristics Item Specifications
Contact Contact material AgSnO2 type
Arrangement 1 Form A
Contact resistance (Initial) Max. 100 mΩ (By voltage drop 6 V DC 1A)
Rating
Nominal switching capacity (resistive load) 20A 250V AC
Max. switching power (resistive load) 6,250VA
Max. switching voltage 250V AC
Max. switching current 25A
Nominal operating power 900mW
Min. switching capacity (reference value)*1100mA, 5V DC
Electrical
characteristics
Insulation resistance (Initial) Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section.
Breakdown voltage
(Initial) Between open contacts 1,000 Vrms for 1 min. (Detection current: 10 mA)
Between contact and coil 5,000 Vrms for 1 min. (Detection current: 10 mA)
Temperature rise (coil) Max. 45°C 113°F (By resistive method, nominal coil voltage applied to the coil;
contact carrying current: 20A, at 60°C 140°F)
Surge breakdown voltage*2
(Between contact and coil) (Initial) 10,000 V
Operate time (at nominal voltage) (at 20°C 68°F) Max. 20 ms (excluding contact bounce time.)
Release time (at nominal voltage) (at 20°C 68°F) Max. 15 ms (excluding contact bounce time) (With diode)
Mechanical
characteristics
Shock resistance Functional 100 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
Destructive 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms.)
Vibration resistance Functional 10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10µs.)
Destructive 10 to 55 Hz at double amplitude of 1.5 mm
Expected life Mechanical (at 180 times/min.) Min. 2×106
Electrical (at 20 times/min.) Min. 105 (resistive load)
Conditions Conditions for operation, transport and storage*3Ambient temperature: –40°C to +60°C –40°F to +140°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed 20 times/min. (at nominal switching capacity)
Unit weight Approx. 23 g .81 oz
Electrical Life
Resistive load 20 A, 250 V AC (cos
φ
= 1) Min. 105
(at 20 times/min.)
25 A, 250 V AC (cos
φ
= 1) Min. 104
(at 20 times/min.)
Compressor load Inrush 70 A (cos
φ
= 0.7), Steady 20 A (cos
φ
= 0.9)
250 V AC Min. 105
(at 20 times/min.)
Inverter load
Inrush 200 A, Steady 20 A
100 V AC Min. 3×104
(at 10 times/min.)
Inrush 100 A, Steady 10 A
200 V AC Min. 3×104
(at 10 times/min.)
1. Coil temperature rise
Sample: ALF1T12, 6 pcs.
Point measured: coil inside
Contact current: 20A
Ambient temperature: 25°C 77°F, 60°C 140°F
2-(1). 200V AC electrical life test
(200V AC, inverter load)
Sample: ALF1T12, 6 pcs.
Load: Inrush 102A (wave peak value),
Steady 14.4A (wave peak value)
Inverter dummy 200V AC
Switching frequency: ON 1s, OFF 5s
Circuit:
Coil applied voltage, %V
80 100 120
70
60
50
40
30
20
10
0
60°C
25°C
Temperature rise, °C
158
140
122
104
86
68
50
32
°F
140°F
77°F
1.9Ω
LF relay contact
Switch
2,000µF
200V AC
063
0
2
4
6
8
10
12
Max.
Min.
x
Max.
Min.
x
Pick-up and drop-out voltage, V
No. of operations, ×104
Contact welding: 0 times
Miscontact: 0 times
Drop-out voltage
Pick-up voltage
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
LF (ALF)
ASCTB195E 201202-T
2-(2). 100V AC electrical life test
(100V AC, inverter load)
Sample: ALF1T12, 6 pcs.
Load: Inrush 224A (wave peak value),
Steady 30.5A (wave peak value)
Inverter dummy 100V AC
Switching frequency: ON 1s, OFF 5s
Circuit:
LF relay contact
2,000µF
470µF
470µF
100V AC
063
0
2
4
6
8
10
12
Max.
Min.
x
Max.
Min.
x
Pick-up and drop-out voltage, V
No. of operations, ×104
Drop-out voltage
Pick-up voltage
Contact welding: 0 times
Miscontact: 0 times
2-(3). Inrush 70.7A, Steady 20A, 250V AC
electrical life test (Compressor dummy load)
Sample: ALF1T12, 3 pcs.
Load: Inrush 70.7A, cos
φ
= 0.7
Steady 20A, cos
φ
0.9
250V AC compressor dummy
Switching frequency: ON 1.5s, OFF 1.5s
Circuit:
2-(4). Electrical life test
(20A 250V AC, resistive load)
Sample: ALF1T12, 6 pcs.
Switching frequency: ON 1.5s, OFF 1.5s
SW1
NO
Mg Detection
Circuit
Contact Weld
Min. 0.5s
Miss Contact
after 0.2s
COM
250V AC
60Hz
G
12V DC
(–)
(+)
0105
0
2
4
6
8
10
12
Max.
Min.
x
Max.
Min.
x
Pick-up and drop-out voltage, V
No. of operations, ×104
Drop-out voltage
Pick-up voltage
Contact welding: 0 times
Miscontact: 0 times
02010
0
2
4
6
8
10
Pick-up and drop-out voltage, V
No. of operations, ×104
12
Drop-out voltage
Pick-up voltage
Max.
Min.
x
Max.
Min.
x
Contact welding: 0 times
Miscontact: 0 times
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
LF (ALF)
ASCTB195E 201202-T
DIMENSIONS (mm inch)
SAFETY STANDARDS
* CSA standard: Certified by C-UL
For Cautions for Use.
UL/C-UL (Recognized) VDE (Certified) TV rating (UL/CSA) TÜV (Certified)
File No. Contact rating File No. Contact rating File No. Rating File No. Rating
E43028 25A 277V AC
20A 277V AC 40009169 20A 250V AC (cos
φ
=1.0) UL
E43028 TV-8 B 11 04
13461 295 20A 250V AC (cos
φ
=1.0)
The CAD data of the products with a CAD Data mark can be downloaded from: http://industrial.panasonic.com/ac/e/
1. TMP type External dimensions
22.0
27.6
30.1
15.7
12.0
0.5
23.3
4.0
3NO COM 4
12
2.0
12.811.25 6.4
#250 terminal
.866
1.087
1.185
.618
.472
.020
.917
.157
.079
.504.443 .252
MADE IN THAILAND
20A277VAC
ALF1T12
20A250V
SPULE;12V COSφ=1
Lot No.
PC board pattern (Bottom view)
Tolerance: ±0.1 ±.004
Schematic (Bottom view)
2 dia.
.079 dia.
±.004
1.087±0.1
27.6
±0.1
13.8±.004
.543
±0.1
12.0 ±0.1
10.0
±.004
.472 ±.004
.394
±0.1
12.0±.004
.472
1.8 dia.
.071 dia.
1.8 dia.
.071 dia.
2 dia.
.079 dia.
NO COM
FASTON 250
PC board side
CAD Data
Dimension:
Less than 1mm .039inch:
Min. 1mm .039inch less than 3mm .118 inch:
Min. 3mm .118 inch:
Tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
2. PCB type External dimensions
22.0
27.6
30.1
15.7
12.0
0.5
23.3
4.0
3NO COM 4
12
.866
1.087
1.185
.618
.472
.020
.917
.157
Lot No.
COSφ=1
SPULE;12V
20A250V
ALF1P12
20A277VAC
MADE IN THAILAND
PC board pattern (Bottom view)
Tolerance: ±0.1 ±.004
Schematic (Bottom view)
2 dia.
.079 dia.
±.004
1.087±0.1
27.6
±0.1
13.8±.004
.543
±0.1
12.0 ±0.1
10.0
±.004
.472 ±.004
.394
±0.1
12.0±.004
.472
1.8 dia.
.071 dia.
1.8 dia.
.071 dia.
2 dia.
.079 dia.
NO COM
CAD Data
Dimension:
Less than 1mm .039inch:
Min. 1mm .039inch less than 3mm .118 inch:
Min. 3mm .118 inch:
Tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
