G3NA
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-205B
Inrush current (A peak)
Inrush current (A peak)
60
150
G3NA-210B
G3NA-410B
Inrush current (A peak)
200
G3NA-220B
G3NA-420B
Inrush current (A peak)
400
G3NA-240B
G3NA-440B(-2)/-450B(-2)
40
100
150
300
100
20
50
50
200
100
0
10
30 50 100 200
500
1,000
5,000
0
10
30 50
100 200
500 1,000
5,000
0
0
10
30 50
100 200
500
1,000
5,000
10
30 50
100 200
500
1,000
5,000
Energized time (ms)
Energized time (ms)
Energized time (ms)
Energized time (ms)
G3NA-D210B
Inrush current (A peak)
Inrush current (A peak)
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
G3NA-275B-UTU(-2)
G3NA-475B-UTU(-2)
900
800
700
600
500
400
300
200
G3NA-290B-UTU(-2)
G3NA-490B-UTU(-2)
Inrush current (A peak)
1,200
1,000
800
600
400
200
100
0
10 20 30 50 70 100 200 300 500
1,000 2,000
10
30
50
100
300
1,000
0
10
30
50
100
300
1,000
Energized time (ms)
Energized time (ms)
Energized time (ms)
Temperature
Characteristics
(for Must Operate
Voltage and Must
Release Voltage)
G3NA-2@@B AC input
Variation
rate (%)
40
Heat Sink Area
vs. Load Current
G3NA-220B
Heat sink area (cm2)
3,000
2,000
Ambient
temperature
80°C
1,000
700
500
300
200
100
70
50
30
20
Ambient
temperature 40°C
20
0
Aluminum plate
3.2 mm thick
−20
−40
−30
−20
0
20
40
60
80
100
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 through the SSR at 40°C, the graph
shows that the heat sink area is about 450 cm
2
.
Therefore, if the heat sink is square, one side of
the heat sink must
be
15 cm ( 450 (cm
2
)/2 ) or
longer.
Ambient temperature (°C)
0
2
4
6
8
10 12 14 16 18 20 22 24
Load current (A)
Thermal Resistance Rth (Back of
Junction SSR) (Examples)
Model
G3NA-205B
G3NA-210B
G3NA-220B
G3NA-240B
G3NA-275B-UTU
G3NA-475B-UTU
G3NA-290B-UTU
G3NA-490B-UTU
G3NA-D210B
Rth (°C/W)
3.22
2.62
1.99
0.45
0.45
Thermal Resistance Rth of Heat Sinks
(Examples)
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
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.
7
OMRON [ OMRON ELECTRONICS LLC ]
