Solid State Relays (Single-phase)
G3PB
5
Safety Precautions
Touching the charged section may occasionally cause
minor electric shock. Do not touch the G3PB terminal
section (the charged section) when the power supply is
ON. Be sure to attach the cover before use.
The G3PB and heat sink will be hot and may occasion-
ally cause minor burns. Do not touch the G3PB or the
heat sink either while the power supply is ON, or imme-
diately after the power is turned OFF.
The internal snubber circuit is charged and may occa-
sionally cause minor electric shock. Do not touch the
G3PB’s main circuit terminals immediately after the
power is turned OFF.
Be sure to conduct wiring with the power supply turned
OFF, and always attach the terminal cover after com-
pleting wiring. Touching the terminals when they are
charged may occasionally result in minor electric
shock.
Do not apply a short-circuit to the load side of the
G3PB. The G3PB may rupture. To protect against
short-circuit accidents, install a protective device, such
as a quick-burning fuse, on the power supply line.
■
Precautions for Safe Use
Although OMRON continuously strives to improve the quality and
reliability of our relays, the G3PB contains semiconductors, which
are generally prone to occasional malfunction and failure.
Maintaining safety is particularly difficult if a relay is used outside of
its ratings. Always use the G3PB within the rated values. When using
the G3PB, always design the system to ensure safety and prevent
human accidents, fires, and social damage even in the event of
G3PB failure, including system redundancy, measures to prevent
fires from spreading, and designs to prevent malfunction.
1.
Do not apply voltage or current above the rated values to the
G3PB terminals. Doing so may cause G3PB malfunction or fire
damage.
2.
Heat Dissipation
•
Do not obstruct the airflow to the G3PB or heat sink. Heat gen-
erated from an G3PB error may occasionally cause the output
element to short, or cause fire damage.
•
Be sure to prevent the ambient temperature from rising due to
the heat radiation of the G3PB. If the G3PB is mounted inside a
panel, install a fan so that the interior of the panel is fully venti-
lated.
•
Be sure to install the G3PB using the specified mounting direc-
tion. Otherwise, heat generated from a G3PB error may cause
the output element to short or burn.
•
Do not use the G3PB if heat dissipation fins have been bent as
a result of, for example, dropping the G3PB. If used in this state,
the SSR may be damaged due to the decreased heat dissipa-
tion capacity.
•
When installing the G3PB directly into a control panel, use a
panel material with low thermal resistance, such as aluminum or
steel. If a material with high thermal resistance, such as wood,
is used, heat generated by the G3PB may cause fire or burning.
3.
Perform wiring and tighten screws correctly, according to the fol-
lowing precautions. If wiring is incorrect or screws are not tight-
ened sufficiently, the G3PB may be damaged by abnormal heat
generated when the power is turned ON.
•
Make sure that all lead wires are appropriate for the load cur-
rent. Heat generated by a wiring error may result in burning.
•
Do not operate if the screws on the output terminal are loose.
Heat generated by a terminal error may result in fire damage.
Wiring
•
When using crimp terminals, refer to the terminal clearances
shown below.
•
Output terminals are charged even when the Relay is turned
OFF. Touching the terminals may result in electric shock. To
isolate the Relay from the power supply, install an
appropriate circuit breaker between the power supply and
the Relay.
Tightening Torque
•
Make sure that non-conducting materials are not caught when
tightening the terminal screws. Otherwise, the heat generated
from a terminal error may result in burning.
•
Be sure to use M5 crimp terminals that are an appropriate size
for the wire diameter when wiring G3PB with a load current of
35 A min.
•
Do not use wires with a damaged sheath. Doing so may result in
electric shock or a short circuit.
•
Do not wire power lines or high-tension lines along with the lines
of the G3PB in the same conduit or duct. Doing so may result in
damage or malfunction due to induction.
•
Use wires of an appropriate length. Wires of insufficient length
may result in malfunction, failure, or burning due to induction.
•
Mount the DIN Track securely. Not doing so may cause the DIN
Track to fall.
•
Make sure that the G3PB clicks securely into place when it is
mounted to the DIN Track. Not doing so may cause the G3PB to
fall.
•
Do not install the G3PB using hands that are dirty with oil or
metal dust. Doing so may result in a malfunction.
•
Tighten the heat sink screws securely to a tightening torque of
0.98 to 1.47 N·m.
4.
Usage Conditions
•
Select a load within the rated values. Not doing so may result in
malfunction, failure, or burning.
•
Use a power supply within the rated frequency range. Not doing
so may result in malfunction, failure, or burning.
5.
Do not transport the G3PB under the following conditions. Doing
so may result in malfunction, failure, or deterioration of perfor-
mance characteristics.
•
When the G3PB is wet.
•
During high temperatures or high humidity.
•
When the G3PB is not packaged.
CAUTION
Section
Screw terminal diameter
Tightening torque
Input terminal
M3.5
0.59 to 1.18 N·m
Output terminal M4
0.98 to 1.47 N·m
M5
1.47 to 2.45 N·m
10 mm
13 mm
12.9 mm
12.4 mm
M5
M4
10 mm
7.0 mm
M3.5
15-A and
25-A Models
35-A and
45-A Models
Output Terminal Section
(Single-phase Models)
Input Terminal Section
