G3NA-290B-UTU-AC100-240 Omron, G3NA-290B-UTU-AC100-240 Datasheet - Page 12

• Manufacturer Part Number: G3NA-290B-UTU-AC100-240
• Description: SSR, PANEL MOUNT, 264VAC, 240VAC, 90A
• Manufacturer: Omron

Specifications of G3NA-290B-UTU-AC100-240

• Control Voltage Range: 100VAC To 240VAC
• Operating Voltage Range: 19VAC To 264VAC
• Load Current: 90A
• Isolation Voltage: 4000VAC
• Control Voltage Type: AC
• Relay Terminals: Screw
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Operating and Storage Locations
Do not use or store the G3NA in the following locations. Doing so
may result in damage, malfunction, or deterioration of performance
characteristics.
■ Precautions for Correct Use
Please observe the following precautions to prevent failure to
operate, malfunction, or undesirable effect on product performance.
Before Actual Operation
1. The G3NA in operation may cause an unexpected accident.
2. Unless otherwise specified, the ratings in this catalog are tested
Mounting Method
SSR Mounting Pitch (Panel Mounting)
• Do not use or store in locations subject to direct sunlight.
• Do not use in locations subject to ambient temperatures outside
• Do not use in locations subject to relative humidity outside the
• Do not store in locations subject to ambient temperatures outside
• Do not use or store in locations subject to corrosive or flammable
• Do not use or store in locations subject to dust (especially iron
• Do not use or store in locations subject to shock or vibration.
• Do not use or store in locations subject to exposure to water, oil, or
• Do not use or store in locations subject to high temperatures or
• Do not use or store in locations subject to salt damage.
• Do not use or store in locations subject to rain or water drops.
the range –20 to 60°C.
range 45% to 85% or locations subject to condensation as the
result of severe changes in temperature.
the range –30 to 70°C.
gases.
dust) or salts.
chemicals.
high humidity.
Therefore it is necessary to test the G3NA under the variety of
conditions that are possible. As for the characteristics of the
G3NA, it is necessary to consider differences in characteristics
between individual SSRs.
values in a temperature range between 15°C and 30°C, a relative
humidity range between 25% and 85%, and an atmospheric
pressure range between 88 and 106 kPa (standard test
conditions according to JIS C5442). It will be necessary to
provide the above conditions as well as the load conditions if the
user wants to confirm the ratings of specific G3NAs.
Duct
80 mm min.
60 mm min.
30 mm min.
Vertical direction
Relationship between SSRs and Duct Height
Ventilation Outside the Control Panel
If the air inlet or air outlet has a filter, clean the filter regularly to
prevent it from clogging to ensure an efficient flow of air.
Do not locate any objects around the air inlet or air outlet, otherwise
the objects may obstruct the proper ventilation of the control panel.
A heat exchanger, if used, should be located in front of the SSRs to
ensure the efficiency of the heat exchanger.
• Please reduce the ambient temperature of SSRs.
• An SSR uses a semiconductor in the output element. This causes
Example: For 10 SSRs with load currents of 10 A,
Size of fans: 92 mm
Ambient temperature of control panel: 30 °C
If there are other instruments that generate heat in the control panel
other than SSRs, additional ventilation will be required.
Incorrect Example
Do not surround the SSR
with ducts, otherwise the
heat radiation of the SSR
will be adversely affected.
Required number
of fans per SSR
Load current (A)
The rated load current of an SSR is measured at an ambient
temperature of 40°C.
the temperature inside the control panel to increase due to heating
resulting from the passage of electrical current through the load. To
restrict heating, attach a fan to the ventilation outlet or air inlet of
the control panel to ventilate the panel. This will reduce the ambient
temperature of the SSRs and thus increase reliability. (Generally,
each 10 °C reduction in temperature will double the expected life.)
Air inlet
0.16 x 10 = 1.6
Thus, 2 fans would be required.
Vertical
direction
Duct
Duct
2
, Air volume: 0.7 m
0.08
Duct
5 A
Use short ducts.
Countermeasure 1
Be aware of airflow
0.16
10 A
50 mm max.
(A height of no
more than half
the SSR's height
is recommended.)
Duct
0.31
20 A
3
/min,
0.62
Countermeasure 2
40 A
If the ducts cannot be
shortened, place the SSR on
a metal base so that it is not
surrounded by the ducts.
Base
Ventilation
outlet
(axial fan)
1.2
75 A
G3NA
Airflow
Duct
Duct
1.44
90 A
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