G3PA24 Datasheet, PDF (13/18 Pages) Omron Electronics LLC – Extremely Thin Relays Integrated with Heat Sinks

Safety Precautions
■ Precautions for Correct Use
Please observe the following precautions to prevent failure to oper-
ate, malfunction, or undesirable effect on product performance.
Load Connection
For an AC load, use a power supply rated at 50 or 60 Hz.
The maximum operating frequency is 10 Hz.
The G3PA-(VD) has a built-in varistor for overvoltage protection.
At a low applied voltage, such as 24 VAC, the load current is not fully
supplied. When the Unit is switched ON, the voltage required to
power the Unit deprives the output signal of the necessary voltage
level and thus creates loss time. The lower the load voltage is, the
greater the loss time is. This condition, however, will not create any
serious problems.
Loss time
For a DC or L load, a diode should be connected in parallel the load
to absorb the counter electromotive force of the load.
Input
SSR
Load
Load power
supply
Noise Terminal Voltage according to
EN55011
The G3PA-(VD) complies with EN55011 standards when a capacitor
is connected to the load power supply as shown in the following cir-
cuit diagram.
Input G3PA-(VD)
Load
Output
Recommended Capacitor: 1 μF, 250 VAC
Mounting
When attaching a heat sink to the G3PA-(VD), in order to facilitate heat dissipation, apply silicone grease or equivalent heat-conductive grease on
the heat sink. (Toshiba Silicone, Shinetsu Silicone, etc.)
Tighten the mounting screws of the heat sink with a torque of 0.78 to 0.98 N•m.
Vertical mounting
• Screw or DIN track
mounting is possible.
• Vertical mounting should
usually be used.
The rated ambient
temperature is
40°C. (30°C for
400 V.)
Close mounting
Horizontal mounting
Panel
G3PA
G3PA
DIN track
80 mm
DIN track
• Close mounting is also
possible.
• Close mounting is possible for
up to 3 G3PA SSRs. (If there
are 4 or more SSRs, mount at
intervals of 10 mm min.)
Reduce the load current by
10% for G3PA-210B-VD,
-220B-VD, -240B-VD and by
20% for G3PA-260B-VD, -
420B-VD(-2), -430B-VD(-2),
-450B-VD-2.
• Leave a distance of 80 mm
Panel
• With vertical mounting,
reduce the load current by
30%. (Refer to the Load
Current vs. Ambient
Temperature graph.)
Note: Leave a distance of 60 mm min. between SSRs and ducts (especially above the SSR).
Solid State Relays G3PA 449