Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section.
1,000 Vrms for 1 min. (Detection current: 10 mA)
5,000 Vrms for 1 min. (Detection current: 10 mA)
Max. 45°C
113°F
(By resistive method, nominal coil voltage applied to the coil;
contact carrying current: 20A, at 60°C
140°F)
10,000 V
Max. 20 ms (excluding contact bounce time.)
Max. 15 ms (excluding contact bounce time) (With diode)
100 m/s
2
(Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
1,000 m/s
2
(Half-wave pulse of sine wave: 6 ms.)
10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10µs.)
10 to 55 Hz at double amplitude of 1.5 mm
Min. 2×10
6
Min. 10
5
(resistive load)
Ambient temperature: –40°C to +60°C
–40°F to +140°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
20 times/min. (at nominal switching capacity)
Approx. 23 g
.81 oz
Specifications
Temperature rise (coil)
Surge breakdown voltage*
2
(Between contact and coil) (Initial)
Operate time (at nominal voltage) (at 20°C
68°F)
Release time (at nominal voltage) (at 20°C
68°F)
Shock resistance
Functional
Destructive
Functional
Mechanical
characteristics
Vibration resistance
Expected life
Destructive
Mechanical (at 180 times/min.)
Electrical (at 20 times/min.)
Conditions for operation, transport and storage*
3
Max. operating speed
Conditions
Unit weight
* 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
20 A, 250 V AC (cos
φ
= 1)
Resistive load
25 A, 250 V AC (cos
φ
= 1)
Electrical Life
Compressor load
Inrush 70 A (cos
φ
= 0.7), Steady 20 A (cos
φ
= 0.9)
250 V AC
Inrush 200 A, Steady 20 A
100 V AC
Inrush 100 A, Steady 10 A
200 V AC
Min. 10
5
(at 20 times/min.)
Min. 10
4
(at 20 times/min.)
Min. 10
5
(at 20 times/min.)
Min. 3×10
4
(at 10 times/min.)
Min. 3×10
4
(at 10 times/min.)
Inverter load
REFERENCE DATA
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
70
158
60
140
50
122
40
104
30
86
20
68
10
50
0
32
200V AC
1.9Ω
LF relay contact
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:
12
Pick-up and drop-out voltage, V
Contact welding: 0 times
Miscontact: 0 times
25°C
77°F
60°C
140°F
Temperature rise,
°C
°F
10
Pick-up voltage
8
Max.
x
Min.
6
Drop-out voltage
2,000µF
4
Max.
x
Min.
Switch
2
80
100
Coil applied voltage, %V
120
0
0
3
No. of operations,
×10
4
6
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
ASCTB195E 201202-T
LF (ALF)
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:
Pick-up and drop-out voltage, V
LF relay contact
470µF
100V AC
470µF
2,000µF
12
Contact welding: 0 times
Miscontact: 0 times
10
Pick-up voltage
8
Max.
x
6
Drop-out voltage
Min.
Max.
x
Min.
4
2
0
0
3
No. of operations,
×10
4
6
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:
Pick-up and drop-out voltage, V
2-(4). Electrical life test
(20A 250V AC, resistive load)
Sample: ALF1T12, 6 pcs.
Switching frequency: ON 1.5s, OFF 1.5s
12
Pick-up and drop-out voltage, V
Contact welding: 0 times
Miscontact: 0 times
12
Contact welding: 0 times
Miscontact: 0 times
10
10
Pick-up voltage
COM
NO
Mg
(–)
12V DC
Detection
Circuit
Contact Weld
Min. 0.5s
Miss Contact
after 0.2s
8
Pick-up voltage
8
250V AC
60Hz
SW1
Max.
x
Min.
Drop-out voltage
6
Max.
x
Min.
Max.
x
Min.
6
(+)
G
4
Drop-out voltage
4
Max.
x
Min.
2
2
0
0
5
No. of operations,
×10
4
10
0
0
10
No. of operations,
×10
4
20
ASCTB195E 201202-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
LF (ALF)
DIMENSIONS
(mm
inch)
1. TMP type
CAD Data
11.25
.443
The CAD data of the products with a
CAD Data
mark can be downloaded from: http://industrial.panasonic.com/ac/e/
External dimensions
12.8
.504
#250 terminal
6.4
.252
2.0
.079
PC board pattern (Bottom view)
27.6
±0.1
1.087
±.004
2
.0
dia.
79
dia
.
13.8
±0.1
.543
±.004
a.
di
ia.
d
79
.0
2
ALF1T12
20A277VAC
COSφ=1
20A250V
SPULE;12V
12.0
±0.1
.472
±.004
23.3
.917
0.5
.020
4.0
.157
1
.07
.8 d
1 d
ia.
ia.
MADE IN THAILAND
a.
di
ia.
.8
1 d
1
7
.0
12.0
±0.1
.472
±.004
10.0
±0.1
.394
±.004
Tolerance:
±0.1
±.004
22.0
.866
27.6
1.087
Lot No.
12.0
.472
Schematic (Bottom view)
FASTON 250
30.1
1.185
3 NO COM 4
15.7
.618
1
2
NO
COM
PC board side
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
CAD Data
ALF1P12
20A277VAC
COSφ=1
20A250V
SPULE;12V
External dimensions
PC board pattern (Bottom view)
27.6
±0.1
1.087
±.004
2
.0
dia.
79
dia
.
13.8
±0.1
.543
±.004
23.3
.917
0.5
.020
4.0
.157
a.
di
ia.
d
79
.0
2
MADE IN THAILAND
12.0
±0.1
.472
±.004
1
.07
.8 d
1 d
ia.
ia.
22.0
.866
27.6
1.087
30.1
1.185
3 NO COM 4
15.7
.618
1
2
Lot No.
12.0
.472
a.
di
ia.
.8
1 d
1
7
.0
12.0
±0.1
.472
±.004
10.0
±0.1
.394
±.004
Tolerance:
±0.1
±.004
Schematic (Bottom view)
NO
COM
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
SAFETY STANDARDS
UL/C-UL (Recognized)
File No.
Contact rating
E43028
25A 277V AC
20A 277V AC
* CSA standard: Certified by C-UL
File No.
40009169
VDE (Certified)
Contact rating
20A 250V AC (cos
φ
=1.0)
TV rating (UL/CSA)
File No.
Rating
UL
TV-8
E43028
File No.
B 11 04
13461 295
TÜV (Certified)
Rating
20A 250V AC (cos
φ
=1.0)
For Cautions for Use.
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
ASCTB195E 201202-T
Mouser Electronics
Authorized Distributor
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