G3PB G3PB
11
Wiring
When using crimp terminals, refer to the terminal clearances
shown below.
Output Terminals Input Terminals
M4(15A,25A)
M5(35A,45A)
13
(0.51)
12
(0.47) 10
(0.39)
•Be sure that all lead wires are thick enough according to the
current.
•Output terminals T1, T2, and T3 are charged regardless of
whether the Unit is a 2- or 3-element model that is turned on
or off. Do not touch these terminals, otherwise an electric
shock may be received.
To isolate the Unit from the power supply, install an appropri-
ate circuit breaker between the power supply and Unit.
Be sure to turn off the power supply before wiring the Unit.
•Terminal L2 and terminal T2 of the 2-element model are
internally short-circuited to each other. Therefore, connect
terminal L2 to the ground terminal side of the power supply. If
terminal L2 is connected to a terminal other than the ground
terminal, cover all the charged terminals, such as heater
terminals, for the prevention of electric shock accidents and
ground faults.
Tightening Torque
Refer to the following and be sure to tighten each screw of the
Unit to the specified torque in order to prevent the Unit from mal-
functioning.
Item Screw terminal
diameter
Tightening torque
Input terminal M3.5 0.59 to 1.18 N Sm
Output terminal M4 0.98 to 1.47 N Sm
M5 1.47 to 2.45 N Sm
Operating Conditions
•Do not apply current exceeding the rated current otherwise,
the temperature of the G3PB may rise excessively.
•Be sure to prevent the ambient temperature 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
ventilated.
•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 G3PB may be damaged due to the decreased heat
dissipation capacity.
•Only use the G3PB with loads that are within the rated values.
Using the G3PB with loads outside the rated values may
result in malfunction, damage, or burning.
•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.
•Keep wiring separate from high-voltage power lines and use
wires of an appropriate length, otherwise malfunction and
damage may result due to induction.
•As protection against accidents due to short-circuiting, be sure
to install protective devices, such as fuses and no-fuse
breakers on the power supply side.
JOperating and Storage Environments
Operating Ambient Temperature
The rated value for the ambient operating temperature of the
G3PB is for when there is no built-up heat. For this reason, under
conditions where heat dissipation is not good due to poor ventila-
tion, and where heat may build up easily, the actual temperature
of the G3PB may exceed the rated value resulting in malfunction
on burning.
When using the G3PB, design the system to allow heat dissipa-
tion sufficient to stay below the Load Current vs. Ambient Tem-
perature characteristic curve. Note also that the ambient temper-
ature of the G3PB may increase as a result of environmental
conditions (e.g., climate, air-conditioning) and operating condi-
tions (e.g., mounting in an airtight panel).
Operating and Storage Locations
Do not use or store the G3PB in the following locations. Doing so
may result in damage, malfunction, or deterioration of perfor-
mance characteristics.
•Do not use or store in locations subject to direct sunlight.
•Do not use in locations subject to ambient temperatures
outside the range --20 to 60°C(--4°F to 140°F).
•Do not use in locations subject to relative humidity outside the
range 45% to 85% or locations subject to condensation as the
result of severe changes in temperature.
•Do not store in locations subject to ambient temperatures
outside the range --30 to 70°C(--22°F to 158°F).
•Do not use or store in locations subject to corrosive or
flammable gases.
•Do not use or store in locations subject to dust (especially iron
dust) or salts.
•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 chemicals.
Transportation
When transporting the G3PB, observe the following points. Not
doing so may result in damage, malfunction, or deterioration of
performance characteristics.
•Do not drop the G3PB or subject it to severe vibrations or
shock.
•Do not transport the product if it is wet.
Vibration and Shock
Do not subject the SSR to excessive vibration or shock. Other-
wise the SSR may malfunction and internal components may be
damaged.
To prevent the SSR from abnormal vibration, do not install the
G3PB in locations or by means that will subject it to the vibrations
from other devices, such as motors.
Solvents
Do not allow the G3PB to come in contact with solvents such as
thinners or gasoline. Doing so will dissolve the markings on the
SSR.
Oil
Do not allow the G3PB terminal cover to come in contact with oil.
Doing so will cause the cover to crack and become cloudy.