9 Solid State Relay G3TC
Precautions
!WARNING
Do not touch the relay while power is supplied or immediately after
G3TC is turned OFF. Doing so may result in burns.
!WARNING
Do not touch the load terminal of the G3TC immediately after the
power is turned OFF, otherwise an electric shock may be received
due to the residual charge of the built-in C/R circuit.
!WARNING
Be sure to turn OFF the power supply to the G3TC before wiring,
otherwise an electric shock may result.
!WARNING
Ensure that a short-circuit current does not flow on the load side of
the SSR, otherwise the G3TC may be damaged.
■ General Precautions
At OMRON, we are constantly working to improve the quality and
reliability of our products. SSRs, however, use semiconductors,
which are prone to malfunction. Be sure to use SSRs within their
rated value. Use the SSR only in systems that are designed with
redundancies, flame protection, counter measures to prevent opera-
tion errors, and other countermeasures to prevent accidents involv-
ing human life or fires.
1. Do not apply excessive voltage or current to the input or output
circuit of the G3TC. Doing so may result in malfunction or burning.
2. Do not connect the input and output circuits incorrectly. Doing so
may result in malfunction or burning.
3. Do not obstruct the flow of air around the G3TC. Abnormal heat-
ing of the G3TC may result in short-circuiting of output elements
and burning.
■ Correct Use
Before Actual Operation
1. In actual operation, the G3TC may cause accidents that were
unforeseeable at the theoretical stage. Therefore, it is necessary
to test the G3TC under a variety of conditions that are possible.
As for the characteristics of the G3TC, it is necessary to consider
the differences between G3TC models.
2. The ratings in this datasheet are for testing in a temperature
range of 15 to 30°C, a relative humidity range of 25% to 85%, and
an atmospheric pressure range of 88 to 106kPa. When testing
operation, it is necessary to confirm correct operation not only
with the actual load that will be used, but also at the same ambi-
ent conditions as for actual operation.
3. The input circuitry does not incorporate a circuit protecting the
SSR from being damaged due to a reversed connection. Make
sure that the polarity is correct when connecting the input lines.
4. Only use the G3TC with loads that are within the rated values.
Using the G3TC with loads outside the rated values may result in
malfunction, damage, or burning.
5. Use a power supply within the rated frequency range. Using a
power supply outside the rated frequency range may result in
malfunction, damage, or burning.
6. No over-voltage absorption element is built in. Therefore, if the
G3TC is connected to an inductive load, be sure to connect an
over-voltage absorption element.
7. As protection against accidents due to short-circuiting, be sure to
install protective devices, such as fuses on the power supply side.
8. Keep wiring separate from high-voltage power lines and use wires
of an appropriate length, otherwise malfunction and damage may
result due to induction.
9. For a DC inductive load, a diode should be connected in parallel
with the load to absorb the counter electromotive force of the
load.
10.For an I/O mounting rack that is installed horizontally, use the
G3TC with loads that are within the following conditions.
0
1
2
3
2.1
0.64
Ambient temperature (
°
C)
Load current (A)
G3TC-OAC5, -OAC5A, -OAC15, -OAC15A, -OAC24, -OAC24A
Horizontal mounting
0
1
2
3
4
Load current (A)
2.7
0.64
Ambient temperature (
°
C)
G3TC-ODC5, -ODC15, -ODC24
Horizontal mounting
