A22NE-P

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Safety Precautions

Be sure to read the precautions for All PushButton Switches in the website at: http://www.ia.omron.com/.

Indication and Meaning for Safe Use

• If the Operation Unit is separated from the Switch Units, the

equipment will not stop, resulting in a hazardous situation.

Make sure the Operation Unit, Mounting Latches, and the Switch

Units are properly assembled.

<Assembling the Operation Unit and the Mounting Latches>

Align the TOP indication (the

mark) on the Operation Unit with

the TOP indication on the Mounting Latches to fit it properly, and

turn the lock lever on the Mounting Latch in the direction shown in

the figure below until a clicking sound is heard.

<Assembling the Mounting Latches and Switch Blocks>

Make sure the hooking part (convex part) on the Mounting Latches

is perfectly latched into the hooking part (concave part) on the

Switch Block.

• When transition wiring is performed, make sure the switching

current inside the Switch and the current based on the transition

wiring is below the rated current of the Switch.

If a current value higher than the rated current flows, it could result

in emission of heat, or damage and deformation of the Switch,

which could cause fire and locking of the contact, and thus a loss

of safety.

• Do not perform wiring with power supplied to the Switch/Indicator.

Do not touch the terminals or other charged parts while power is

being supplied. Doing so may result in electric shock.

• Do not disassemble or modify the Switch/Indicator under any

circumstances.

• Doing so may prevent the Switch/Indicator from functioning to its

full capability. Do not drop the Switch/Indicator. Do not apply

pressure that may deform or alter the Switch/Indicator.

• The durability of the Switch varies considerably depending on the

switching conditions. Always test the Switch/Indicator under actual

working conditions before application and use the Switch/Indicator

only for the number of switching operations allowed.

• Do not allow the load voltage and current to exceed the rated

value. This may damage or burn out the Switch/Indicator.

• Do not use the Switch/Indicator in locations where explosive or

flammable gases or liquid may be present or scattered. The

electric ark or the heat caused by switching contacts may cause a

fire or explosion.

• Do not use the Switch/Indicator in locations where toxic gases,

such as H2S, SO2, NH3, HNO3, and Cl2, may be present, or in

locations subject to high temperature or humidity. Doing so may

damage the Switch/Indicator due to contact failure or corrosion.

• Do not use the Switch/Indicator submersed in oil or water, or in

locations continuously subject to splashes of oil or water. Doing so

may result in oil or water entering and damaging the Switch/

Indicator.

• Do not use or keep the Switch/Indicator under the following

conditions:

• Subject to severe temperature changes.

• Subject to high humidity or condensation.

• Subject to severe vibration or shock.

• Where direct rays of the sun strike.

• Where sea breeze may be present.

• Make sure that a rubber washer is present between the Operation

Unit and the panel. Otherwise, the specifications of the protective

structure may not be satisfied.

• Do not apply excessive force to the Switch or wirings. Damage or

deformation of the Switch Block could cause an improper contact

or a loss of safety.

• Use an appropriate wiring and crimp terminals (hereinafter, called

ferrule terminals).

• Exercise caution to avoid wiring errors when connecting the

terminals.

• To prevent wiring materials from smoking or ignition, confirm wire

ratings and use the wiring materials given in the following table.

Use wiring crimp terminals and ferrule terminals of the specified

size.

• After storing the product for a long time exceeding 1 year, perform,

at a minimum, inspections of the operating characteristics, contact

resistance, insulation resistance, and dielectric strength as well as

evaluate the product under the working conditions.

• This Switch/Indicator is intended for indoor use only.

Using the Switch/Indicator outdoors may result in failure.

Precautions

for Safe Use

Comments on what to do or avoid doing, to use

the product safely.

Precautions

for Correct

Use

Supplementary comments on what to do or

avoid doing to use the product safely and

prevent its malfunctioning or an adverse effect

on its performance or functions.

Precautions for Safe Use

1

2

Mounting

Latches

Operation Unit

Lock lever

Mounting

Latches

Switch Blocks

Wire Type

Wire

material

Recommended

Wire

Wire coating peeling

amount

Solid wire/

Stranded

Wire

Copper

0.25 to 1.5 mm2

AWG 24 to 16

Ferrules used: 10 to 12 mm

(Varies depending on the

recommended ferrule

conductor length)

Ferrules not used: 8 mm