A22Z-R25 datasheet(28/52 Pages) OMRON

28 / 52 page

A22NE-P

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

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.

• 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.

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.

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 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. In models with IP69K, make sure the rubber

bush of the Operation Unit is properly attached.

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.

• Do not wire anything to the release holes.

• Do not tilt or twist a flat-blade screwdriver while it is inserted into a

release hole on the terminal block. The terminal block may be

damaged.

• Insert a flat-blade screwdriver into the release holes at an angle.

The terminal block may be damaged if you insert the screwdriver

straight in.

• Do not allow the flat-blade screwdriver to fall out while it is inserted

into a release hole.

• Do not bend a wire past its natural bending radius or pull on it with

excessive force.

Doing so may cause the wire disconnection.

Warning

Indicates a potentially hazardous

situation that, if not avoided, could

result in serious injury or death.

Additionally there may be significant

property damage.

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.

WARNING

Precautions for Safe Use

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

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