G3PF

10

Safety Precautions

Refer to Safety Precautions for All Solid State Relays.

The G3PF may rupture if short-circuit current

flows. 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.

Minor burns may occasionally occur. Do not

touch the SSR or the heat sink while the power is

being supplied or immediately after the power

supply has been turned OFF. The SSR and heat

sink become extremely hot.

Minor electrical shock may occasionally occur.

Do not touch the main circuit terminals on the

SSR immediately after the power supply has been

turned OFF.

Shock may result due to the electrical charge

stored in the built-in snubber circuit.

Minor electrical shock may occasionally occur.

Always turn OFF the power supply before

performing wiring. Also, always attach the cover

terminal.

OMRON constantly strives to improve quality and reliability.

SSRs, however, use semiconductors, and semiconductors may

commonly malfunction or fail. In particular, it may not be possible

to ensure safety if the SSRs are used outside the rated ranges.

Therefore, always use the SSRs within the ratings. When using

an SSR, always design the system to ensure safety and prevent

human accidents, fires, and social harm in the event of SSR

failure. System design must include measures such as system

redundancy, measures to prevent fires from spreading, and

designs to prevent malfunction.

(1) Operating and Storage Environments

Do not use or store the G3PF in the following locations. Doing

so may result in damage, malfunction, or deterioration of

performance characteristics.

1. Locations subject to corrosive or flammable gases.

2. Do not store in locations subject to ambient storage

temperatures outside the range

−30 to 70°C.

3. Do not use in locations subject to ambient operating

temperatures outside the range

−20 to 60°C.

4. Do not use in locations subject to relative humidity outside

the range 25% to 85%.

5. Locations subject to high temperature or high humidity.

6. Locations subject to condensation as the result of rapid

changes in temperature.

7. Locations subject to exposure to water, oil, or chemicals.

8. Locations subject to dust (especially iron dust) or salts.

9. Locations subject to rainwater or water splashes.

10.Locations subject to direct sunlight.

11.Locations subject to shock or vibration.

(2) Transport

Do not transport the G3PF under the following conditions.

Doing so may result in damage, malfunction, or deterioration

of performance characteristics.

1. Conditions in which the G3PF may be subject to water or

oil splashes.

2. Conditions in which the G3PF may be subject to high

temperature or high humidity.

3. Conditions in which the G3PF may be subject to

condensation as the result of rapid changes in

temperature.

4. Conditions in which the G3PF may be dropped or subject

to excessive vibration or shock.

5. Conditions in which the G3PF is not packaged.

(3) Mounting

1. Do not use the G3PF if the heat radiation fins have been

bent by being dropped. Doing so may result in malfunction

due to a reduction in the heat radiation performance.

2. Do not block the movement of the air surrounding the

SSR or heat sink.

Abnormal heating of the SSR may result in shorting

failures of the output elements or burn damage.

3. Make sure that there is no excess ambient temperature

rise due to the heat generation of the G3PF. If the G3PF

is mounted inside a panel, install a fan so that the interior

of the panel is fully ventilated. Otherwise, shorting failures

of the output elements or burn damage may result.

4. Make sure the DIN track is securely mounted. Otherwise,

the G3PF may fall.

5. Do not handle the G3PF with oily or dusty (especially iron

dust) hands. Doing so may result in malfunction.

6. Mount the G3PF in the specified direction (on a vertical or

horizontal surface). Otherwise excessive heat generated

by the G3PF may cause short-circuit failures of the output

elements or burn damage.

7. When mounting the G3PF to a control panel or other

fixture with screws, be sure to tighten the screws to a

torque of 0.98 to 1.47 N·m. A lower level of tightening

torque may cause the G3PF to fall.

8. Do not drop the G3PF or subject it to excessive vibration

or shock. Doing so may result in damage, malfunction, or

deterioration of performance characteristics.

(4) Wiring

1. Use wires that are thick enough for the load current.

Otherwise, excessive heat generated by the wire may

cause burning.

Tightening torque

M2: 0.22 to 0.28 N·m

M3: 0.4 to 0.56 N·m

M5: 1.57 to 2.35 N·m

Control connector mounting torque (detachable

terminal)

0.25 to 0.3 N·m

2. When tightening terminal screws, prevent any non-

conducting material from becoming caught between the

screws and the tightening surface. Otherwise, excessive

heat generated by the terminal may cause burning.

3. Use wires that are suited to the load current and voltage.

Otherwise, excessive heat generated by the wires may

cause burning, or the outer covering of the wire may melt,

resulting in electrical shock or ground fault.

4. Use a crimp terminal size that is suited to the diameter of

the wire. Otherwise, it may result in burning, or the outer

covering of the wire may melt, resulting in electrical shock

or ground fault.

CAUTION

Precautions for Safe Use

Mounted on a vertical surface

Mounted on a horizontal surface

Vertical

direction

Panel