LF
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:
Pick-up and drop-out voltage, V
12
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
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
470µF
100V AC
470µF
2,000µF
12
Pick-up and drop-out voltage, V
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:
COM
NO
Mg
(–)
12V DC
SW1
(+)
G
0
0
5
No. of operations,
×10
4
10
12
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
Contact welding: 0 times
Miscontact: 0 times
10
10
Pick-up voltage
8
Pick-up voltage
8
Max.
x
Min.
Drop-out voltage
Detection
Circuit
Contact Weld
Min. 0.5s
Miss Contact
after 0.2s
6
250V AC
60Hz
Max.
x
Min.
Max.
x
Min.
6
4
Drop-out voltage
4
Max.
x
Min.
2
2
0
0
10
No. of operations,
×10
4
20
For Cautions for Use, see Relay Technical Information (Page 11 to 39).
42
NAIS [ NAIS(MATSUSHITA ELECTRIC WORKS) ]
