LF-G (ALFG)
–4–
ASCTB196E 201606-T
2. High capacity type (Contact Gap 1.5 mm .059 inch type)
3. High capacity type (Contact Gap 1.8 mm .071 inch type)
1. Coil temperature rise
Sample: ALFG2PF09, 6 pcs.
Point measured: coil inside
Ambient temperature: 20°C 68°F, 60°C 140°F
Contact carrying current: 31A
2. Ambient temperature characteristics and coil
applied voltage
Coil applied voltage, %V
20°C
60°C 140°F 31A
60°C 140°F 0A
68°F 31A
20°C 68°F 0A
1401201008060
100
80
60
40
20
Temperature rise, °C
Coil applied voltage, %V
900 1020304050607080
19432 50 68 86 104 122 140 158 176
180
140
100
60
0
Contact carrying
current: 31A
Pick-up voltage
Coil & contact
no carrying current
*Inside the coil temperature
155°C 311°F (UL Class F)
Allowable ambient temperatures
against % coil voltages
(max. inside the coil temperature
set as 155°C 311°F)
°F
Ambient temperature, °C
3. Electrical life test
(31A 250V AC cos
φ
= 0.8 Inductive load)
Sample: ALFG2PF09, 6 pcs.
Operation frequency: ON:OFF = 0.1s:10s
Ambient temperature: 85°C 185°F
Circuit:
Change of pick-up and drop-out voltage Change of contact resistance
Contact welding detection
and Mis-contacting
detection circuit
250V AC
9V DC
Pick-up and drop-out voltage, V
30
10
9
8
7
6
5
4
3
2
1
0
Max.
Min.
x
Max.
Min.
x
No. of operations, ×10
4
Pick-up voltage
Drop-out voltage
Contact resistance, mΩ
No. of operations, ×10
4
30
100
90
80
70
60
50
40
30
20
10
0
Max.
Min.
x
1. Coil temperature rise
Sample: ALFG2PF091, 6 pcs.
Point measured: coil inside
Ambient temperature: 20°C 68°F, 60°C 140°F
Contact carrying current: 33A
2. Ambient temperature characteristics and coil
applied voltage
1401201008060
120
100
80
60
40
20
248
212
176
140
104
68
Coil applied voltage, %V
20°C
60°C 140°F 33A
60°C 140°F 0A
68°F 33A
20°C 68°F 0A
Temperature rise, °C °F
0
32
10
50
20
68
30
86
40
104
50
122
60
140
70
158
80
176
90
194
180
140
100
60
Coil applied voltage, %V
Ambient temperature, °C °F
Contact carrying
current: 33A
Pick-up voltage
Coil & contact
no carrying current
*Inside the coil temperature
155°C 311°F (UL Class F)
Allowable ambient temperatures
against % coil voltages
(max. inside the coil temperature
set as 155°C 311°F)
3. Electrical life test
(33A 250V AC cos
φ
= 0.8 Inductive load)
Sample: ALFG2PF091, 6 pcs.
Operation frequency: ON:OFF = 0.1s:10s
Ambient temperature: 85°C 185°F
Circuit:
Change of pick-up and drop-out voltage Change of contact resistance
Contact welding detection
and Mis-contacting
detection circuit
250V AC
9V DC
Pick-up and drop-out voltage, V
No. of operations, ×10
4
30
10
9
8
7
6
5
4
3
2
1
0
Max.
Min.
x
Max.
Min.
x
Pick-up voltage
Drop-out voltage
No. of operations, ×10
4
Max.
Min.
x
Contact resistance, mΩ
30
100
90
80
70
60
50
40
30
20
10
0