1
Key-type Selector Switches
A22NK
Keyed 22-mm Selector Switches
Universal Design.
Emphasis on Color Coding, Workability,
and Safety.
Easy to Use
• You can connect up to three Contact Blocks in one stage for
multistage expansion.
• The terminals can be retightened when Contact Blocks are
stacked.
• Contact Blocks can be attached in any direction for easy
assembly.
• Screw terminal structure is compatible with round crimp
terminals.
Safety
• Easy-to-operate lock lever for secure locking.
• Easy-mounting Contact Blocks provide finger protection.
•Different colors of Contact Blocks (NO: blue, NC: orange)
help prevent wiring errors.
Product Lineup
• Meet global safety standards.
• Available with metal or plastic bezels.
• All models are keyed alike.
• Standard-feature degree of protection: IP66 and NEMA 13.
Refer to Safety Precautions for All Pushbutton Switch-
es/Indicators and Safety Precautions in the A22NN/
A22NL datasheet
A22NK
2
Model Number Structure
Model Number Legend - - - - - -Shipped as a set that includes the Operation Unit, Mounting Collar, and Contact Block.
For information on combinations, refer to Ordering Information on pages 5 to 6.
Model Numbers for Sets
(1) (2) (3) (4) (5) (6) (7) (8)
A22N K - 2B M - 01 A A - G 100
(1) Type
(2) Number of Positions and
Bezel Material
(3) Reset Method
Code Type
K Key-type Selector Switch
Code No. of
positions Bezel material
2B 2 Plastic
2M 2 Brushed metal
2R 2 Metal
3B 3 Plastic
3M 3 Brushed metal
3R 3 Metal
Code Reset method
M Manual
Two-
positions
manual
Three-
positions
manual
L
Automatic
reset on
left
Two-
positions
automatic
Three-
positions left
automatic
B
Automatic
reset on
left and
right
Three-
positions left
or right
automatic
(4) Key Number
(5) Key Release Position
❍: Release position
●: Locked position
(6) Degree of Protection
Code No.
01 No.1
Code Release
position
Two
positions
Three
positions
AAll
positions
BLeft
D Center ---
GLeft and
right ---
Code Protection
A IP66, NEMA13
(7) Contact Specification
(8) Contact Configuration
Note: 1. NO (blue): Normally open, NC (orange):
Normally closed.
2. Refer to the following figure for Unit
positions.
Code Description
G General purpose
Code
Contact
Blocks
Switch
Position Two
posi-
tions
Three
posi-
tions
NO NC 123
100 1 0 NO --- --- Yes ---
002 0 1 --- --- NC Yes ---
101 2 0 NO --- NO Yes Yes
102 1 1 NO --- NC Yes Yes
201 1 1 NC --- NO --- Yes
202 0 2 NC --- NC Yes Yes
110 2 0 NO NO --- --- Yes
112 2 1 NO NO NC Yes Yes
210 1 1 NC NO --- --- Yes
011 2 0 --- NO NO --- Yes
012 1 1 --- NO NC --- Yes
120 1 1 NO NC --- --- Yes
220 0 2 NC NC --- --- Yes
021 1 1 --- NC NO --- Yes
022 0 2 --- NC NC --- Yes
Operation Angle
Three PositionsTwo Positions
90°
121
0
2
45° 45°
■Specifications: Refer to page 10 and refer to the A22NN/A22NL. ■ Precautions for correct use: Refer to the A22NN/A22NL.
■Dimensions: Refer to page 11.
Note: Not all assembled configurations are possible.
Please refer to the subassemblies section for additional options.
Please refer to the specifications section for examples of linked
contact block options.
A22NK
3
Structure
Contact Configuration Table
Two Positions
Three Positions
No. of
outputs Code Contact
configuration Unit
position Contacts Position
1 2
1 100 SPST-NO
(1) NO ON
(2) --- --- ---
(3) --- --- ---
1 002 SPST-NC
(1) --- --- ---
(2) --- --- ---
(3) NC ON
2 102 SPST-NO/
SPST-NC
(1) NO ON
(2) --- --- ---
(3) NC ON
2 101 DPST-NO
(1) NO ON
(2) --- --- ---
(3) NO ON
2 202 DPST-NC
(1) NC ON
(2) --- --- ---
(3) NC ON
3 111 3PST-NO
(1) NO ON
(2) NO ON
(3) NO ON
3 222 3PST-NC
(1) NC ON
(2) NC ON
(3) NC ON
3 122 SPST-NO/
DPST-NC
(1) NO ON
(2) NC ON
(3) NC ON
3 112 DPST-NO/
SPST-NC
(1) NO ON
(2) NO ON
(3) NC ON
No. of
outputs Code Contact
configuration Unit
position Contacts Position
1 0 2
2 110 DPST-NO
(1) NO ON
(2) NO ON ON
(3) --- --- --- ---
2 011 DPST-NO
(1) --- --- --- ---
(2) NO ON ON
(3) NO ON
2 101 DPST-NO
(1) NO ON
(2) --- --- --- ---
(3) NO ON
2 220 DPST-NC
(1) NC ON ON
(2) NC ON
(3) --- --- --- ---
2 022 DPST-NC
(1) --- --- --- ---
(2) NC ON
(3) NC ON ON
2 202 DPST-NC
(1) NC ON ON
(2) --- --- --- ---
(3) NC ON ON
2 120 SPST-NO/
SPST-NC
(1) NO ON
(2) NC ON
(3) --- --- --- ---
Operation Angle
Three PositionsTwo Positions
90°
121
0
2
45° 45°
Note: Not all assembled configurations
are possible.
Please refer to the subassemblies
section for additional options. Please
refer to the specifications section for
examples of linked contact block options.
A22NK
4
2 102 SPST-NO/
SPST-NC
(1) NO ON
(2) --- --- --- ---
(3) NC ON ON
2 210 SPST-NO/
SPST-NC
(1) NC ON ON
(2) NO ON ON
(3) --- --- --- ---
2 201 SPST-NO/
SPST-NC
(1) NC ON ON
(2) --- --- --- ---
(3) NO ON
2 012 SPST-NO/
SPST-NC
(1) --- --- --- ---
(2) NO ON ON
(3) NC ON ON
2 021 SPST-NO/
SPST-NC
(1) --- --- --- ---
(2) NC ON
(3) NO ON
3 111 3PST-NO
(1) NO ON
(2) NO ON ON
(3) NO ON
3 222 3PST-NC
(1) NC ON ON
(2) NC ON
(3) NC ON ON
3 122 SPST-NO/
DPST-NC
(1) NO ON
(2) NC ON
(3) NC ON ON
3 212 SPST-NO/
DPST-NC
(1) NC ON ON
(2) NO ON ON
(3) NC ON ON
3 221 SPST-NO/
DPST-NC
(1) NC ON ON
(2) NC ON
(3) NO ON ON
3 211 DPST-NO/
SPST-NC
(1) NC ON ON
(2) NO ON ON
(3) NO ON
3 121 DPST-NO/
SPST-NC
(1) NO ON
(2) NC ON
(3) NO ON
3 112 DPST-NO/
SPST-NC
(1) NO ON
(2) NO ON ON
(3) NC ON ON
No. of
outputs Code Contact
configuration Unit
position Contacts Position
1 0 2
Operation Angle
Three Positions
1
0
2
45° 45°
Note: Some combinations are only available through subassemblies.
Please refer to the specifications section for more information.
A22NK
5
Ordering Information
Model Numbers for Sets- - - - Shipped as a set that includes the Operation Unit, Mounting Collar, and Contact Block.
Two-position, Key-type Selector Switches
Appearance Bezel
material
No. of
outputs Model (3)
Reset method
(5)
Key release
positions
(8)(8)(8)
Contact
configuration
Plastic bezels
2B
1
A22NK-2B(3)-01(5)A-G(8)(8)(8)
M: Manual
L: Automatic reset on left
A: All positions
B: Left
100
002
2
102
101
202
Brushed metal bezels
2M
1
A22NK-2M(3)-01(5)A-G(8)(8)(8)
100
002
2
102
101
202
Metal bezels
2R
1
A22NK-2R(3)-01(5)A-G(8)(8)(8)
100
002
2
102
101
202
A22NK
6
Three-position, Key-type Selector Switches
Appearance Bezel
material
No. of
out-
puts
Model (3)
Reset method
(5)
Key release
positions
(8)(8)(8)
Contact
configuration
Plastic bezels
3B
2
A22NK-3B(3)-01(5)A-G(8)(8)(8)
M: Manual
B: Automatic reset on left and right B: Left
D: Center
G: Left and right
110
011
101
220
022
202
120
102
210
201
012
021
Brushed metal bezels
3M
2
A22NK-3M(3)-01(5)A-G(8)(8)(8)
110
011
101
220
022
202
120
102
210
201
012
021
Metal bezels
3R
2
A22NK-3R(3)-01(5)A-G(8)(8)(8)
110
011
101
220
022
202
120
102
210
201
012
021
■Subassemblies: Refer to pages 7 to 9.
(You can order Operation Units, Mounting Collars, and
Contact Blocks individually.)
■Specifications: Refer to page 10 and refer to the A22NN/A22NL.
■Dimensions: Refer to page 11.
■Accessories and tools: Refer to the A22NN/A22NL.
Note: Not all assembled configurations are possible.
Please refer to the subassemblies section for additional options.
Please refer to the specifications section for examples of linked contact block options.
A22NK
7
Ordering Information
Subassemblies - - - - - You can order Operation Units, Mounting Collars, and Contact Blocks individually. Use them in combination for
models that are not available as assembled Switches. They can also be used as inventory for maintenance
parts.
Plastic Operation Units
Reinforcement Plate
Brushed Metal Operation Units Metal Operation Units
Mounting Collar
Contact Blocks
Note: Use a Reinforcement Plate for greater strength.
■ Model numbers of sets: Refer to page 5. ■ Specifications: Refer to page 10 and refer to the A22NN/A22NL.
■ Dimensions: Refer to page 11.
■ Accessories and tools: Refer to the A22NN/A22NL.
A22NK
8
Ordering Information
Subassemblies - - - - - You can order Operation Units, Mounting Collars, and Contact Blocks individually. Use them in combination for
models that are not available as assembled Switches. They can also be used as inventory for maintenance parts.
Operation Units
Bezel material and shape
Plastic Brushed metal Metal
(1)
Key release
positions
No. of
positions Reset method Model Model Model
2
Manual A22NZ-2BM-01(1)A A22NZ-2MM-01(1)A A22NZ-2RM-01(1)A A: All positions
B: Left
C: Right
Automatic reset
on left A22NZ-2BL-01(1)A A22NZ-2ML-01(1)A A22NZ-2RL-01(1)A
3
Manual A22NZ-3BM-01(1)A A22NZ-3MM-01(1)A A22NZ-3RM-01(1)A
A: All positions
B: Left
C: Right
D: Center
G: Left and right
Automatic reset
on left A22NZ-3BL-01(1)A A22NZ-3ML-01(1)A A22NZ-3RL-01(1)A
Automatic reset
on right A22NZ-3BR-01(1)A A22NZ-3MR-01(1)A A22NZ-3RR-01(1)A
Automatic reset
on left and right A22NZ-3BB-01(1)A A22NZ-3MB-01(1)A A22NZ-3RB-01(1)A
■ Model numbers of sets: Refer to page 5. ■ Specifications: Refer to page 10 and refer to the A22NN/A22NL.
■ Dimensions: Refer to page 11.
■ Accessories and tools: Refer to the A22NN/A22NL.
A22NK
9
Ordering Information
Subassemblies - - You can order Operation Units, Mounting Collars, and Contact Blocks individually. Use them in combination for
models that are not available as assembled Switches. They can also be used as inventory for maintenance parts.
Mounting Collar
Contact Blocks
Reinforcement Plate
Accessories
Appearance Model
A22NZ-H-01
Appearance Contact
Specification Model
SPST-NO (blue) A22NZ-S-G1A
SPST-NC (orange) A22NZ-S-G1B
Appearance Model
A22NZ-A-C01
Appearance Model
Key
A22NZ-K-01
A22NK
10
Specifications
Characteristics
*1. With no icing or condensation.
*2. Degree of protection from the front of the panel.
Operating Characteristics (for SPST-NO/SPST-NC)
Examples of Linked Contact Blocks
Note: If you increase the number of Contact Blocks, evaluate the Switch under actual working conditions before permanent installation and use
the Switch within a number of switching operations that will not adversely affect the Switch’s performance.
Type Key-type Selector Switches
Item
Allowable operating
frequency
Mechanical 30 operations/minute max.
Electrical 30 operations/minute max.
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact resistance 100 mΩ max. (initial value)
Dielectric strength
Between terminals
of same polarity 2,500 VAC at 50/60 Hz for 1 min
Between each termi-
nal and ground 2,500 VAC at 50/60 Hz for 1 min
Vibration resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Shock resistance Malfunction 1,000 m/s2 max. (malfunction within 1 ms)
Durability Mechanical 500,000 operations min. (Switches with 3 positions: 300,000 operations min.)
Electrical 500,000 operations min. (Switches with 3 positions: 300,000 operations min.)
Ambient operating temperature*1 −25 to 70°C
Ambient operating humidity 35% to 85% RH
Ambient storage temperature*1 −40 to 80°C
Degree of protection*2 IP66, NEMA13
Electric shock protection class Class II
PTI (tracking characteristic) 175
Degree of contamination (application envi-
ronment) 3 (IEC 60947-5-1)
Weight Approx. 65 g (for 1NC/1NO)
Type Key-type Selector Switches
Item Manual reset Automatic reset
Total travel force (torque) (maximum TTF) 0.6 N·m 0.6 N·m
Total travel (TT) 2 positions: Approx. 90°, 3 positions: Approx. 45°
Resetting force (torque) (RF) 0.5 N·m max. ---
Key-type Selector Switches
2 positions 3 positions
Linking example
Contact Blocks
Operation Unit
Mounting Collar
Operation Unit
Mounting Collar
A22NK
11
Dimensions (Unit: mm)
Lighted and Non-lighted Key-type Selection Switches
Depth with Linked Units
Terminal Wiring Diagrams
Terminal Connection Diagrams
Bottom View
0.5
5
43.5
28.8 dia.
11
1.8
24.2 18.8 45.3
47
30
R29.2 90°
Two positions
Two-position Switches with Plastic Bezels
A22NK-2B@
28.8 dia.
24.2 18.8
0.5
5
45.3
43.5
11
1.8
Three-position Switches with Plastic Bezels
A22NK-3B@
28.8 dia.
24.2 18.8 45.3
43.5
11
Two-position Switches with Brushed Metal Bezels
A22NK-2M@
24.2 18.8 45.3
43.5
28.8 dia.
11
Three-position Switches with Brushed Metal Bezel
s
A22NK-3M@
43.5
28.8 dia.
11
24.2 18.8 45.3
Two-position Switches with Metal Bezels
A22NK-2R@
28.8 dia.
24.2 18.8 45.3
43.5
11
Three-position Switches with Metal Bezels
A22NK-3R@
66.8
45.3
2NO/1NC
Contact configuration
code:112
2NO/1NC
Contact configuration
code:112
Six, M3.5
Phillips/slotted
screws
Contact
Blocks
20
10
3
4
3
4
Bottom View
1
2
A22NK
12
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches/Indicators for common precautions.
Read the Safety Precautions in the A22NN/A22NL datasheet.
Insert the key all of the way to the back of the cylinder before you turn it.
Precautions for Correct Use
A22NK
13
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches/Indicators.
•Never perform wiring work on a Switch while power is being
supplied. Never touch terminals and other charged parts while
power is being supplied. Doing so may result in electrical shock.
•Never attempt to disassemble or modify the Switch in any way.
Doing so may prevent correct operation.
•Switch functionality may be inhibited. Do not drop the Switch.
Never apply a force that would deform or alter the nature of the
Switch.
•The durability of the Switch is greatly affected by operating
conditions. Evaluate the Switch under actual working conditions
before permanent installation and use the Switch within a number
of switching operations that will not adversely affect the Switch’s
performance.
•Do not use a load voltage or current that exceeds the rating. Doing
so may damage or cause burning in the Switch.
•Do not use the Switch in a location with inflammable or explosive
gases, or where the Switch would be subjected to inflammable
solvents. The arcs and heat generated when the Switch is
operated can cause ignition or explosions.
•Do not use the Switch where sulfur gas (H2S, SO2), ammonia gas
(NH3), nitric acid gas (HNO3), chlorine gas (Cl2), or other harmful
gases are present or where high humidity is present. Contact faults
and damage due to corrosion may interfere with the functionality of
the Switch.
•Do not use the Switch in oil or water or in an environment subject
to constant contact with oil or water. The oil or water may enter the
Switch, causing failure.
•Do not use or store the Switch in the following locations.
•Locations subject to rapid temperature changes
•Locations subject to condensation due to high humidity
•Locations subject to vibration
•Locations subject to direct sunlight
•Locations subject to salty air
•Make sure that the rubber washer is in place between the
Operation Unit and the panel. Otherwise, the specifications of the
protective structure may not be satisfied.
•Do not subject the Contact Block or wiring to excessive force. The
Contact Block may be damaged or deformed and faulty contact
may occur.
Mounting
•Do not tighten the Mounting Nut more than necessary using tools
such as pointed-nose pliers. Doing so will damage the Mounting
Nut. (The tightening torque of the Mounting Nut is 1.0 to 2.0 N·m.)
Wiring
•Terminal screws must be M3.5 Phillips or slotted screws with a
square washer.
•The terminal screw tightening torque is 1.0 to 1.3 N·m.
•Solid wires, stranded wires, and crimp terminals can be connected
to the Switch.
Stranded wires: AWG14 to AWG16
Solid wire: 1.6 dia. max.
Bare Crimp Terminals
Crimp Terminals with Insulating Sheathes
•After wiring the Switch, maintain appropriate clearance and
creepage distances.
Operating Environment
•The Switch is intended for indoor use only.
Using the Switch outdoors will result in failure.
LED Lamps
•A current-limiting resistor is built into the LED Lamp, so external
resistance is not required.
•False Lighting of the LED Lamp
The LED Lamp will light with a microcurrent of approx. 0.1 mA or
less. Take countermeasures, such as adding a resistor in parallel
to the LED Lamp, to prevent false lighting.
The micro-current varies with the machine (due to leakage current,
stray capacity between cables, etc.). Select a resistance value and
allowable power consumption according to the actual current.
Precautions for Safe Use Precautions for Correct Use
7.2 mm max. 7.2 mm max.
16.0 mm max. 16.0 mm max.
7.2 mm max.
20.2 mm max.
7.2 mm max.
20.2 mm max.
X1
X2
LED
Lamp
R: 10 kΩ (1 W)
bleeder resistor
Example of Circuit to Prevent False Lighting
For 24 VAC/VDC Lighting Unit
A22NK
14
Application
Mounting to the Panel
Panel Hole Dimensions
•Panel hole dimensions are given below.
•The recommended panel thicknesses are given below.
•If outer surface treatment such as coating is performed for the
panel, the panel dimensions after outer surface treatment must
meet the specified panel dimensions.
•The following figure gives pitch dimension A and pitch dimension
B between the centers of the mounting holes.
Dimension A
Note: The minimum mounting pitch is based on three Contact Blocks
in stage 1 with one wire attached to each terminal.
If you attach two wires or link Units, determine the mounting
pitch based on the dimensions diagrams and ease of operation
and wiring.
Dimension A When Using Accessory
•Dimension A is 50 mm minimum when a Standard Legend Plate
Frame is attached.
•Dimension A is 51 mm minimum when a Large Legend Plate
Frame is attached.
•Dimension A is 75 mm minimum when a Protective Cover is
attached.
Dimension B
Mounting the Operation Unit
•Panel Hole of 22.3-mm Diameter
Insert the Operation Unit from the front of the panel, insert the Lock
Ring and Mounting Nut from the back of the panel, and tighten the
Mounting Nut. Before tightening, check that the rubber washer is
present between the Operation Unit and the panel.
•Panel Hole of 25.5-mm Diameter
Do not use the Lock Ring, and tighten the Mounting Nut while
confirming that the projecting part (see following figure) on the
Mounting Nut is aligned with mounting hole. Before tightening,
check that the rubber washer is present between the Operation
Unit and the panel.
•Align the Lock Ring with the slot on the case and insert it so that
the edge is flush with the panel.
Mounting the Contact Block to the Operation Unit
•Insert the Operation Unit into the Mounting Collar, aligning the TOP
mark inscribed on the Operation Unit with the lever on the
Mounting Collar, and then turn the lever in the direction indicated
by the arrow in the following figure all of the way until it clicks into
place.
Panel hole dimension Panel thickness
22.3 dia. 0.8 to 5 mm
25.5 dia. 0.8 to 6 mm
Wire type
Number of
linked Con-
tact Blocks
Number of
wires per ter-
minal
Minimum al-
lowable pitch
Dimension A
(mm) or larger
Leads (twisted wires
or solid wire) 1150
Bare crimp terminals 1 1 50
Crimp terminals with
insulating sheathes 1160
Dimension A
22.3 dia.
+0.4
0
3.2
Using the Lock Ring Standard Switch
22.3 dia.
+0.4
0
22.3 dia.
+0.4
0
+0.2
0
24.1 dia.
+0.4
0
Dimension B
R: 0.8 max.
Panel Hole Dimensions for 22.3 Diameter
Panel Hole Dimensions for 25.5 Diameter
25.5 dia.
+0.5
0
Operation Unit shape Dimension B
Mushroom 40 mm min.
Other than the above 30 mm min.
Lock Ring
Rubber washer
Mounting Nut
22.3 dia.
Mounting Nut
Projecting par
t
25.5 dia.
Rubber washer
TOP mark
(2)
(1)
A22NK
15
Removing the Mounting Collar
•Press the lock lever in from the back side to release the lock, and
then hook the Mounting Collar with a screwdriver, move it in the
direction indicated at (2), and remove it. Turn the lever all of the
way until it clicks into place.
Contact Block
Attaching the Contact Block
•Catch the projection on the opposite side of the Mounting Collar
from the lever side and press the Contact Block in the direction
indicated at (1).
Removing the Contact Block
•Insert a screwdriver into the gap between the Mounting Collar and
Contact Block and press it inward in the direction shown at (2).
Attaching the Reinforcement Plate
•To link Contact Blocks together, attach a Reinforcement Plate in
the direction shown in the following figure. To remove the Plate,
insert a screwdriver in the direction indicated at (1) and rotate it in
the direction indicated at (2).
Engraving
•Engrave legends on the Legend Plates.
Do so with the straight part of the Legend Plate positioned on the
right and left.
•The characters must be engraved no deeper than 0.5 mm. Use an
alcohol-based paint, such as a melamine, phthalic acid, or acrylic
resin based paint.
(2)
(3)
(1)
(1)
Projected, Full-guard, or Mushroom
Switches Flat Switches
(2)
(3)
(1)
(2)
(1)
15.4 dia. 17.7 dia.
A22NK
16
Attaching Character Films
•To attach a character film, remove the Button and attach the film,
aligning it with the straight portions of the Legend Plate.
•Prepare films of the following sizes depending on the type of
Legend Plate.
Removing and Tightening the Cap
For all Switches except for Mushroom Switches, use the A22Z-3908
Cap Tightening Tool to loosen the cap. When you tighten the cap,
make sure that the Legend Plate is in the correct position and then
turn the cap in the direction opposite of the direction shown in the
following figure. Tighten it to a torque of 0.5 to 1.0 N·m so that it will
not become loose.
Attaching the LED Lamp to the Lighting Unit
•Insert the protrusions on the LED Lamp into the guides on the
Lighting Unit and then turn the LED Lamp in direction (2) to lock it
in place.
Attaching and Replacing LED Lamps
Removing the LED Lamp from the Panel Surface
•Insert the LED Lamp Extractor as shown in the following figure and
then rotate the Extractor in the direction shown at (2) while
pressing it inward.
Attaching the LED Lamp from the Panel Surface
•Insert the LED Lamp into the LED Lamp Extractor as shown in the
following figure. Align the projections on the LED Lamp with the
LED Lamp insertion guides, insert the LED Lamp, and turn it in the
direction indicted at (2).
Projected,
Full-guard, or
Mushroom
Switches
Legend
Plate di-
mensions
Film dimen-
sions
Flat Switches
Legend
Plate di-
mensions
Film dimen-
sions
Button
Legend Plate
Flange
Button
Legend Plate
Button
Legend Plate
Button
Legend Plate
Projected Switches Full-guard Switches
Mushroom Switches Flat Switches
Display range
5.15
1.6
15.9 dia.
15.4 dia.
T = 0.1 to 0.2 mm
15.4
17.1 dia.
0
−0.2
0
−0.2
Display range
1.30
2.00
17.7 dia.
T = 0.1 to 0.2 mm
17.5
19.6 dia.
0
−0.2
0
−0.2
(2)
(1)
(2)
(1)
(2) (1)
(2)
(1)
(2)
(1)
LED Lamp insertion guides
A22NK
17
Control Box
You can attach a Legend Plate Frame.
Attach it in the direction shown in the following figure.
Mount the Switch in the same way as for a standard panel. The
tightening torque of the Box screws is 1.4 to 2.0 N·m.
Creating a Cable Hole
To open a cable hole, leave the cover attached, place the tip of a
screwdriver in the grooves at four locations around the cable hole,
and strike the screwdriver with a hammer to open the hole.
Attaching and Removing Legend Plates
•Press the Legend Plate into the depression in the Legend Plate
Frame. The Legend Plate Frame can be separate or it can be
mounted on the panel when you attach the Legend Plate.
•The direction of the characters will depend on the mounting
direction of the Operation Unit if the Switch is a Selector Switch or
Key Selector Switch.
•You can easily remove the Legend Plate by pressing it forwards
from the back of the Legend Plate Frame.
•The acrylic plastic Legend Plate is easily damaged by shock.
Handle it with care.
Attaching the Lock Ring
Attach the Lock Ring as shown in the following figure.
To ensure water resistance, attach the rubber washer in the specified
location.
•Align the TOP mark on the Operation Unit, part A on the Legend
Plate, and the notch in the panel, and insert the Operation Unit.
•If there is no notch in the panel, remove part A from the Legend
Plate with pliers.
Attaching the Protective Cover
Attach the Protective Cover (A22NZ-A-303) to a panel that is 0.8 to
1.0 mm thick. To ensure water resistance, attach the rubber washer
in the specified location.
Legend Plate
Switch Box
Screwdriver
Groove
Side
Cover
Cable hole
Strike at four
diagonally
opposed locations
to open the hole.
Legend Plate Frame
Depression
Legend Plate
Operation
Unit
Lock Ring (A22NZ-A-403)
Rubber washer
(built into the Lock Ring)
Panel
Rubber washer (built
into the Operation Unit)
Align the projection
on the Lock Ring
with the notch in the
panel.
Panel thickness:
0.8 to 4 mm
TOP mark Part A
Legend Plate
Panel thickness: 0.8 to 4 mm
Part A
Mounting Nut
Protective Cover
(A22NZ-A-303)
Operation Unit
Rubber washer
Panel Lock Ring
Terms and Conditions of Sale
1. Offer; Acceptance. These terms and conditions (these "Terms") are deemed
part of all quotes, agreements, purchase orders, acknowledgments, price lists,
catalogs, manuals, brochures and other documents, whether electronic or in
writing, relating to the sale of products or services (collectively, the "Products")
by Omron Electronics LLC and its subsidiary companies (“Omron”). Omron
objects to any terms or conditions proposed in Buyer’s purchase order or other
documents which are inconsistent with, or in addition to, these Terms.
2. Prices; Payment Terms. All prices stated are current, subject to change with-
out notice by Omron. Omron reserves the right to increase or decrease prices
on any unshipped portions of outstanding orders. Payments for Products are
due net 30 days unless otherwise stated in the invoice.
3. Discounts. Cash discounts, if any, will apply only on the net amount of invoices
sent to Buyer after deducting transportation charges, taxes and duties, and will
be allowed only if (i) the invoice is paid according to Omron’s payment terms
and (ii) Buyer has no past due amounts.
4. Interest. Omron, at its option, may charge Buyer 1-1/2% interest per month or
the maximum legal rate, whichever is less, on any balance not paid within the
stated terms.
5. Orders. Omron will accept no order less than $200 net billing.
6. Governmental Approvals. Buyer shall be responsible for, and shall bear all
costs involved in, obtaining any government approvals required for the impor-
tation or sale of the Products.
7. Taxes. All taxes, duties and other governmental charges (other than general
real property and income taxes), including any interest or penalties thereon,
imposed directly or indirectly on Omron or required to be collected directly or
indirectly by Omron for the manufacture, production, sale, delivery, importa-
tion, consumption or use of the Products sold hereunder (including customs
duties and sales, excise, use, turnover and license taxes) shall be charged to
and remitted by Buyer to Omron.
8. Financial. If the financial position of Buyer at any time becomes unsatisfactory
to Omron, Omron reserves the right to stop shipments or require satisfactory
security or payment in advance. If Buyer fails to make payment or otherwise
comply with these Terms or any related agreement, Omron may (without liabil-
ity and in addition to other remedies) cancel any unshipped portion of Prod-
ucts sold hereunder and stop any Products in transit until Buyer pays all
amounts, including amounts payable hereunder, whether or not then due,
which are owing to it by Buyer. Buyer shall in any event remain liable for all
unpaid accounts.
9. Cancellation; Etc. Orders are not subject to rescheduling or cancellation
unless Buyer indemnifies Omron against all related costs or expenses.
10. Force Majeure. Omron shall not be liable for any delay or failure in delivery
resulting from causes beyond its control, including earthquakes, fires, floods,
strikes or other labor disputes, shortage of labor or materials, accidents to
machinery, acts of sabotage, riots, delay in or lack of transportation or the
requirements of any government authority.
11. Shipping; Delivery. Unless otherwise expressly agreed in writing by Omron:
a. Shipments shall be by a carrier selected by Omron; Omron will not drop ship
except in “break down” situations.
b. Such carrier shall act as the agent of Buyer and delivery to such carrier shall
constitute delivery to Buyer;
c. All sales and shipments of Products shall be FOB shipping point (unless oth-
erwise stated in writing by Omron), at which point title and risk of loss shall
pass from Omron to Buyer; provided that Omron shall retain a security inter-
est in the Products until the full purchase price is paid;
d. Delivery and shipping dates are estimates only; and
e. Omron will package Products as it deems proper for protection against nor-
mal handling and extra charges apply to special conditions.
12. Claims. Any claim by Buyer against Omron for shortage or damage to the
Products occurring before delivery to the carrier must be presented in writing
to Omron within 30 days of receipt of shipment and include the original trans-
portation bill signed by the carrier noting that the carrier received the Products
from Omron in the condition claimed.
13. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the
Products will be free from defects in materials and workmanship for a period of
twelve months from the date of sale by Omron (or such other period expressed
in writing by Omron). Omron disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION,
EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABIL-
ITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS.
BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. Omron further disclaims all warranties and responsibility of
any type for claims or expenses based on infringement by the Products or oth-
erwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obli-
gation hereunder shall be, at Omron’s election, to (i) replace (in the form
originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying
Product, or (iii) repay or credit Buyer an amount equal to the purchase price of
the non-complying Product; provided that in no event shall Omron be responsi-
ble for warranty, repair, indemnity or any other claims or expenses regarding
the Products unless Omron’s analysis confirms that the Products were prop-
erly handled, stored, installed and maintained and not subject to contamina-
tion, abuse, misuse or inappropriate modification. Return of any Products by
Buyer must be approved in writing by Omron before shipment. Omron Compa-
nies shall not be liable for the suitability or unsuitability or the results from the
use of Products in combination with any electrical or electronic components,
circuits, system assemblies or any other materials or substances or environ-
ments. Any advice, recommendations or information given orally or in writing,
are not to be construed as an amendment or addition to the above warranty.
See http://www.omron247.com or contact your Omron representative for pub-
lished information.
14. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE
FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS
BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual
price of the Product on which liability is asserted.
15. Indemnities. Buyer shall indemnify and hold harmless Omron Companies and
their employees from and against all liabilities, losses, claims, costs and
expenses (including attorney's fees and expenses) related to any claim, inves-
tigation, litigation or proceeding (whether or not Omron is a party) which arises
or is alleged to arise from Buyer's acts or omissions under these Terms or in
any way with respect to the Products. Without limiting the foregoing, Buyer (at
its own expense) shall indemnify and hold harmless Omron and defend or set-
tle any action brought against such Companies to the extent based on a claim
that any Product made to Buyer specifications infringed intellectual property
rights of another party.
16. Property; Confidentiality. Any intellectual property in the Products is the exclu-
sive property of Omron Companies and Buyer shall not attempt to duplicate it
in any way without the written permission of Omron. Notwithstanding any
charges to Buyer for engineering or tooling, all engineering and tooling shall
remain the exclusive property of Omron. All information and materials supplied
by Omron to Buyer relating to the Products are confidential and proprietary,
and Buyer shall limit distribution thereof to its trusted employees and strictly
prevent disclosure to any third party.
17. Export Controls. Buyer shall comply with all applicable laws, regulations and
licenses regarding (i) export of products or information; (iii) sale of products to
“forbidden” or other proscribed persons; and (ii) disclosure to non-citizens of
regulated technology or information.
18. Miscellaneous. (a) Waiver. No failure or delay by Omron in exercising any right
and no course of dealing between Buyer and Omron shall operate as a waiver
of rights by Omron. (b) Assignment. Buyer may not assign its rights hereunder
without Omron's written consent. (c) Law. These Terms are governed by the
law of the jurisdiction of the home office of the Omron company from which
Buyer is purchasing the Products (without regard to conflict of law princi-
ples). (d) Amendment. These Terms constitute the entire agreement between
Buyer and Omron relating to the Products, and no provision may be changed
or waived unless in writing signed by the parties. (e) Severability
. If any provi-
sion hereof is rendered ineffective or invalid, such provision shall not invalidate
any other provision. (f) Setoff. Buyer shall have no right to set off any amounts
against the amount owing in respect of this invoice. (g) Definitions. As used
herein, “including” means “including without limitation”; and “Omron Compa-
nies” (or similar words) mean Omron Corporation and any direct or indirect
subsidiary or affiliate thereof.
Certain Precautions on Specifications and Use
1. Suitability of Use. Omron Companies shall not be responsible for conformity
with any standards, codes or regulations which apply to the combination of the
Product in the Buyer’s application or use of the Product. At Buyer’s request,
Omron will provide applicable third party certification documents identifying
ratings and limitations of use which apply to the Product. This information by
itself is not sufficient for a complete determination of the suitability of the Prod-
uct in combination with the end product, machine, system, or other application
or use. Buyer shall be solely responsible for determining appropriateness of
the particular Product with respect to Buyer’s application, product or system.
Buyer shall take application responsibility in all cases but the following is a
non-exhaustive list of applications for which particular attention must be given:
(i) Outdoor use, uses involving potential chemical contamination or electrical
interference, or conditions or uses not described in this document.
(ii) Use in consumer products or any use in significant quantities.
(iii) Energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety equip-
ment, and installations subject to separate industry or government regulations.
(iv) Systems, machines and equipment that could present a risk to life or prop-
erty. Please know and observe all prohibitions of use applicable to this Prod-
uct.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT
ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON’S PRODUCT IS PROP-
ERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
2. Programmable Products. Omron Companies shall not be responsible for the
user’s programming of a programmable Product, or any consequence thereof.
3. Performance Data. Data presented in Omron Company websites, catalogs
and other materials is provided as a guide for the user in determining suitabil-
ity and does not constitute a warranty. It may represent the result of Omron’s
test conditions, and the user must correlate it to actual application require-
ments. Actual performance is subject to the Omron’s Warranty and Limitations
of Liability.
4. Change in Specifications. Product specifications and accessories may be
changed at any time based on improvements and other reasons. It is our prac-
tice to change part numbers when published ratings or features are changed,
or when significant construction changes are made. However, some specifica-
tions of the Product may be changed without any notice. When in doubt, spe-
cial part numbers may be assigned to fix or establish key specifications for
your application. Please consult with your Omron’s representative at any time
to confirm actual specifications of purchased Product.
5. Errors and Omissions. Information presented by Omron Companies has been
checked and is believed to be accurate; however, no responsibility is assumed
for clerical, typographical or proofreading errors or omissions.
OMRON CANADA, INC. • HEAD OFFICE
Toronto, ON, Canada • 416.286.6465 • 866.986.6766 • www.omron247.com
OMRON ELECTRONICS DE MEXICO • HEAD OFFICE
México DF • 52.
55.59.01.43.00
• 01-800-226-6766 • mela@omron.com
OMRON ELECTRONICS DE MEXICO • SALES OFFICE
Apodaca, N.L. • 52.81.11.56.99.20 • 01-800-226-6766 • mela@omron.com
OMRON ELETRÔNICA DO BRASIL LTDA • HEAD OFFICE
São Paulo, SP, Brasil • 55.11.2101.6300 • www.omron.com.br
OMRON ARGENTINA • SALES OFFICE
Cono Sur • 54.11.4783.5300
OMRON CHILE • SALES OFFICE
Santiago • 56.9.9917.3920
OTHER OMRON LATIN AMERICA SALES
54.11.4783.5300
Authorized Distributor:
A32I-E-01 04/15
Note: Specifications are subject to change. © 2015 Omron Electronics LLC Printed in U.S.A.
Printed on recycled paper.
Automation Control Systems
• Machine Automation Controllers (MAC) • Programmable Controllers (PLC)
• Operator interfaces (HMI) • Distributed I/O • Software
Drives & Motion Controls
• Servo & AC Drives • Motion Controllers & Encoders
Temperature & Process Controllers
• Single and Multi-loop Controllers
Sensors & Vision
• Proximity Sensors • Photoelectric Sensors • Fiber-Optic Sensors
• Amplified Photomicrosensors • Measurement Sensors
• Ultrasonic Sensors • Vision Sensors
Industrial Components
• RFID/Code Readers • Relays • Pushbuttons & Indicators
• Limit and Basic Switches • Timers • Counters • Metering Devices
• Power Supplies
Safety
• Laser Scanners • Safety Mats • Edges and Bumpers • Programmable Safety
Controllers • Light Curtains • Safety Relays • Safety Interlock Switches
OMRON AUTOMATION AND SAFETY • THE AMERICAS HEADQUARTERS • Chicago, IL USA • 847.843.7900 • 800.556.6766 • www.omron247.com
OMRON EUROPE B.V. •
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•
+31 (0) 23 568 13 00
•
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