One Cycle Surge Current
The values shown by the solid line are for non-repetitive inrush currents.
Keep the inrush current below the values shown by the dotted line if it occurs repetitively.
G3NA-210B
G3NA-220B
G3NA-240B
G3NA-205B
60
40
20
150
100
50
G3NA-410B
200
150
100
50
G3NA-420B
400
300
200
100
G3NA-440B-2/-450B-2
0
10
30 50 100 200
500
1,000
5,000
0
10
30 50
100 200
500 1,000
5,000
0
10
30 50
100 200
500
1,000
5,000
0
10
30 50
100 200
500
1,000
5,000
G3NA-D210B
30
Ener g ized time (ms)
Ener g ized time (ms)
G3NA-275B-UTU-2
G3NA-475B-UTU-2
900
Ener g ized time (ms)
G3NA-290B-UTU-2
G3NA-490B-UTU-2
1,200
Ener g ized time (ms)
28
26
24
22
20
18
16
14
12
10
8
6
4
2
800
700
600
500
400
300
200
100
1,000
800
600
400
200
0
10 20 30 50 70 100 200 300 500
1,000 2,000
0
10
30
50
100
300
1,000
0
10
30
50
100
300
1,000
Ener g ized time (ms)
Temperature
Characteristics (for
Must Operate Voltage
and Must Release
Voltage)
G3NA-2 ?? B AC input
40
20
Ener g ized time (ms)
Heat Sink Area vs.
Load Current
G3NA-220B
3,000
2,000 Ambient
Ambient
temperature 80 ° C
temperature 40 ° C
1,000
700
Ener g ized time (ms)
0
? 20
500
300
200
100
70
50
30
Aluminum plate
3.2 mm thick
Note: The heat sink area refers to the combined area
of the sides of the heat sink that radiate heat.
For example, when a current of 18 A is allowed
to flow throu g h the SSR at 40 ° C, the g raph
shows that the heat sink area is about 450 cm 2 .
Therefore, if the heat sink is square, one side of
? 40
? 30
? 20
0
20 40 60 80 100
Ambient temperature ( ° C)
20
0
2
4
6
8 10 12 14 16 18 20 22 24
Load current (A)
the heat sink must be 15 cm ( 450 (cm 2 )/2 ) or
lon g er.
Thermal Resistance Rth
(Back of Junction SSR) (Examples)
Thermal Resistance Rth of Heat Sinks
(Examples)
Model
G3NA-205B
G3NA-210B
G3NA-220B
G3NA-240B-2
G3NA-275B-UTU-2
G3NA-475B-UTU-2
G3NA-290B-UTU-2
G3NA-490B-UTU-2
Rth ( ° C/W)
3.22
2.62
1.99
0.45
0.45
Model
Y92B-N50
Y92B-N100
Y92B-N150
Y92B-A100
Y92B-A150N
Y92B-A250
Y92B-P250NF
Rth ( ° C/W)
2.8
1.63
1.38
1.63
1.37
1.00
0.46
G3NA-D210B
2.62
Note: When using a commercially available heat sink, use one with a
thermal resistance equal to or less that the OMRON Heat Sink.
474
Solid State Relay
G3NA
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