omron A22 Pushbutton Switch (Cylindrical 22/25-dia.) Installation Guide

: June 5, 2024
: Omron

Table of Contents

A22 Pushbutton Switch (Cylindrical 22/25-dia.)
Read User Manual Online (PDF format)
Download This Manual (PDF format)

A22 Pushbutton Switch (Cylindrical 22/25-dia.)

Pushbutton Switch (Cylindrical 22/25-dia.)
A22

Install in 22-dia. or 25-dia. Panel Cutout
(When Using a Ring)
· Lever for easily mounting and removing the Switch Unit. · Increase wiring efficiency with three-row mounting of Switch Blocks. · Finger protection mechanism on Switch Unit provided as a standard
feature. · Use 25-dia. ring to install in 25-dia. panel cutouts. · Mounted using either open-type (fork-type) or closed-type
(round-type) crimp terminals. · IP65 oil resistance (non-lighted models)
IP65 (lighted models)

Refer to Safety Precautions for All Pushbutton Switches/ Indicators and Safety Precautions on page 21.

A22L-D

List of Models
Non-lighted Pushbutton Switches
Appearance

Model number

Lighted Pushbutton Switches
Appearance

Round Half guard

A22-H

Round Half guard

CSM_A22_DS_E_8_11
A22-S
Model number A22L-H

Projected Square
Guard
Mushroom Mushroom Small (30 dia.)

A22-C A22-D A22-S

Projected Square
Guard

A22L-C A22L-D

1

Model Number Structure

Model Number Legend ….. Shipped as a set which includes the Pushbutton, Lamp (lighted type only), and Switch.
For information on combinations, refer to Ordering Information on pages 3 to 4.

(1) (2) (3)

(4)

(5) (6)

A22 L – C G – 24A – 10 M

A22

(1) Type

Code

Description

No symbol

Non-lighted

L

Lighted

(2) Flange Shape Non-lighted

Code

Description

H Round Half-guard

C

Projected

Square

D

Full-guard

S

Round

Mushroom Small (30 dia.)

Lighted

Code

Description

H Round Half-guard

C

Projection

Square

D

Full-guard

(3) Illumination Color

Code

Description

R

Red

G

Green

Y

Yellow

W

White

A

Blue

B

Black*

For non-lighted type only

(4) Light Source

(5) Contacts

Without Voltage Reduction Unit Code Description

Code Operating Voltage

10 SPST-NO

No symbol
6A

Non-lighted 6 VAC/VDC

01 SPST-NC

11

SPST-NO + SPST-NC

12A LED 12 VAC/VDC

20 DPST-NO

24A

24 VAC/VDC

02 DPST-NC

With Voltage Reduction Unit

Code Operating Voltage

T1 LED
T2

100 VAC 200 VAC

Note: LED incorporates the 24-VAC/ VDC type.

Note: 1. The contact ratings are for standard loads. For microloads, select from the accessories on page 8.
2. Refer to page 11 for contact ratings.

(6) Switch Action

Code Description

M Momentary

A

Alternate

Note: 1. Momentary operation: Self-resetting
2. Alternate operation: Self-holding The Socket Unit holds and the Operation Unit resets.

Specifications: See pages 11 to 12. Dimensions: Refer to page14.

Precautions for correct use: Refer to page 21. Accessories and tools: See pages 8 to 10.

2

Ordering Information

A22

Completely Assembled…….. Shipped as a set which includes the Pushbutton, LED (lighted type only), and Switch.
Non-lighted (Round Type)

Appearance Round/Half-guard type A22-H
Round/Small-size Mushroom type (30-dia. head) A22-S

Operation

Momentary operation (self-resetting)

Output

Set

SPST-NO

A22-H@-10M

SPST-NC

A22-H@-01M

SPST-NO + SPST-NC A22-H@-11M

SPST-NO + SPST-NO A22-H@-20M

SPST-NC + SPST-NC A22-H@-02M

SPST-NO

A22-S@-10M

SPST-NC

A22-S@-01M

SPST-NO + SPST-NC A22-S@-11M

SPST-NO + SPST-NO A22-S@-20M

SPST-NC + SPST-NC A22-S@-02M

Alternate operation (self-holding) Set
A22-H@-10A A22-H@-01A A22-H@-11A A22-H@-20A A22-H@-02A
—

Illumination color
R (red) Y (yellow) G (green) W (white) A (blue) B (black)

Note: The contact ratings are for standard loads.
Non-lighted (Square Type)

Appearance Square/Projection type A22-C
Square/Guard type A22-D

Operation

Momentary operation (self-resetting)

Output

Set

SPST-NO

A22-C@-10M

SPST-NC

A22-C@-01M

SPST-NO + SPST-NC A22-C@-11M

SPST-NO + SPST-NO A22-C@-20M

SPST-NC + SPST-NC A22-C@-02M

SPST-NO

A22-D@-10M

SPST-NC

A22-D@-01M

SPST-NO + SPST-NC A22-D@-11M

SPST-NO + SPST-NO A22-D@-20M

SPST-NC + SPST-NC A22-D@-02M

Alternate operation (self-holding) Set
A22-C@-10A A22-C@-01A A22-C@-11A A22-C@-20A A22-C@-02A A22-D@-10A A22-D@-01A A22-D@-11A A22-D@-20A A22-D@-02A

Illumination color
R (red) Y (yellow) G (green) W (white) A (blue) B (black)

Note: The contact ratings are for standard loads.
Lighted (Round Type)

Appearance

Output

Round/Half-guard type LED lighting

SPST-NO

(without A22L-H

Voltage

Reduction

Unit)

SPST-NC

SPST-NO + SPST-NC

Lighting

Operation

Momentary operation (self-resetting)

Operating voltage

Set

Alternate operation (self-holding)
Set

A22L-H@-24A-10M A22L-H@-24A-10A

A22L-H@-24A-01M A22L-H@-24A-01A

24 VAC/VDC A22L-H@-24A-11M A22L-H@-24A-11A

Illumination color

SPST-NO + SPST-NO

Round/Half-guard type LED voltage-reduction lighting (with Voltage Reduction Unit) A22L-H

SPST-NC + SPST-NC SPST-NO SPST-NC

SPST-NO + SPST-NC

SPST-NO + SPST-NO

SPST-NC + SPST-NC
Note: The contact ratings are for standard loads.

LED 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC

A22L-H@-24A-20M
A22L-H@-24A-02M
A22L-H@-T1-10M A22L-H@-T2-10M A22L-H@-T1-01M A22L-H@-T2-01M A22L-H@-T1-11M A22L-H@-T2-11M A22L-H@-T1-20M A22L-H@-T2-20M A22L-H@-T1-02M A22L-H@-T2-02M

A22L-H@-24A-20A
A22L-H@-24A-02A
A22L-H@-T1-10A A22L-H@-T2-10A A22L-H@-T1-01A A22L-H@-T2-01A A22L-H@-T1-11A A22L-H@-T2-11A A22L-H@-T1-20A A22L-H@-T2-20A A22L-H@-T1-02A A22L-H@-T2-02A

R (red) Y (yellow) G (green) W (white) A (blue)

Individual models: Refer to pages 5 to 7. (The Pushbutton, Lamp, and Switch can be ordered separately.)

Specifications and dimensions: See pages 11 to 14. Accessories and tools: See pages 8 to 10.

3

Ordering Information

A22

Completely Assembled ……..Shipped as a set which includes the Pushbutton, LED (lighted type only), and Switch.
Lighted (Square Type)

Appearance

Output

Square/Projection type LED lighting

SPST-NO

(without A22L-C

Voltage

Reduction

Unit)

SPST-NC

SPST-NO + SPST-NC

SPST-NO + SPST-NO

SPST-NC +

SPST-NC

Square/Projection type LED voltage-reduction lighting (with Voltage Reduction Unit) A22L-C

SPST-NO SPST-NC

SPST-NO + SPST-NC
SPST-NO + SPST-NO
SPST-NC + SPST-NC
Note: The contact ratings are for standard loads.

Operation

Momentary operation (self-resetting)

Alternate operation (self-holding)

Lighting Operating voltage

Set

A22L-C@-24A-10M A22L-C@-24A-10A

Illumination color

A22L-C@-24A-01M A22L-C@-24A-01A

24 VAC/VDC

A22L-C@-24A-11M A22L-C@-24A-11A

A22L-C@-24A-20M A22L-C@-24A-20A

LED 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC

A22L-C@-24A-02M
A22L-C@-T1-10M A22L-C@-T2-10M A22L-C@-T1-01M A22L-C@-T2-01M A22L-C@-T1-11M A22L-C@-T2-11M A22L-C@-T1-20M A22L-C@-T2-20M A22L-C@-T1-02M A22L-C@-T2-02M

A22L-C@-24A-02A
A22L-C@-T1-10A A22L-C@-T2-10A A22L-C@-T1-01A A22L-C@-T2-01A A22L-C@-T1-11A A22L-C@-T2-11A A22L-C@-T1-20A A22L-C@-T2-20A A22L-C@-T1-02A A22L-C@-T2-02A

R (red) Y (yellow) G (green) W (white) A (blue)

Appearance

Output

Square/Full-guard type LED lighting

SPST-NO

(without Voltage Reduction Unit)

A22L-D

SPST-NC

Square/Full-guard type LED voltage-reduction lighting (with Voltage Reduction Unit) A22L-D

SPST-NO + SPST-NC SPST-NO + SPST-NO SPST-NC + SPST-NC
SPST-NO
SPST-NC

SPST-NO + SPST-NC
SPST-NO + SPST-NO
SPST-NC + SPST-NC
Note: The contact ratings are for standard loads.

Operation

Momentary operation (self-resetting)

Alternate operation (self-holding)

Lighting Operating voltage

Set

A22L-D@-24A-10M A22L-D@-24A-10A

Illumination color

A22L-D@-24A-01M A22L-D@-24A-01A

24 VAC/VDC

A22L-D@-24A-11M A22L-D@-24A-11A

LED 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC 100 VAC 200 VAC

A22L-D@-24A-20M
A22L-D@-24A-02M
A22L-D@-T1-10M A22L-D@-T2-10M A22L-D@-T1-01M A22L-D@-T2-01M A22L-D@-T1-11M A22L-D@-T2-11M A22L-D@-T1-20M A22L-D@-T2-20M A22L-D@-T1-02M A22L-D@-T2-02M

A22L-D@-24A-20A
A22L-D@-24A-02A
A22L-D@-T1-10A A22L-D@-T2-10A A22L-D@-T1-01A A22L-D@-T2-01A A22L-D@-T1-11A A22L-D@-T2-11A A22L-D@-T1-20A A22L-D@-T2-20A A22L-D@-T1-02A A22L-D@-T2-02A

R (red) Y (yellow) G (green) W (white) A (blue)

Individual models: Refer to pages 5 to 7. (The Pushbutton, Lamp, and Switch can be ordered separately.)

Specifications and dimensions: See pages 11 to 14. Accessories and tools: See pages 8 to 10.

4

Ordering Information

A22

Subassembled …………………..The Pushbutton, Lamp, or Switch can be ordered separately. Use them in combination for models that are not
available as assembled Units. These can also be used as inventory for maintenance parts.

Non-lighted Models

Lighted Models (without Voltage Reduction Unit)

Lighted Models (with Voltage Reduction Unit)

Pushbutton

Lamp LED

Switch

Switch (without Voltage Reduction Unit)

Switch (with Voltage Reduction Unit)

Ordering set combinations: Refer to pages 3 to 4.

Specifications and dimensions: See pages 11 to 14. Accessories and tools: See pages 8 to 10.

5

Ordering Information

A22

Subassembled ………………….. The Pushbutton, Lamp, or Switch can be ordered separately. Use them in combination for models that are not
available as assembled Units. These can also be used as inventory for maintenance parts.
Pushbutton Non-lighted

Sealing

Half-guard type

IP65 oil-resistant models

Round/Mushroom type

Square/Projection type

(30-dia. head)

Square/Full-guard type

Appearance

Color Red Green Yellow White Blue Black

A22-HR A22-HG A22-HY A22-HW A22-HA A22-HB

Model

Lighted
Sealing

Half-guard type

Appearance

A22-SR A22-SG A22-SY A22-SW A22-SA A22-SB

Model

A22-CR A22-CG A22-CY A22-CW A22-CA A22-CB

Model

A22-DR A22-DG A22-DY A22-DW A22-DA A22-DB

Model

IP65 Square/Projection type

Square/Full-guard type

Color Red Green Yellow White Blue

Model A22L-HR A22L-HG A22L-HY A22L-HW A22L-HA

Model A22L-CR A22L-CG A22L-CY A22L-CW A22L-CA

Model A22L-DR A22L-DG A22L-DY A22L-DW A22L-DA

Ordering set combinations: Refer to pages 3 to 4.

Specifications and dimensions: See pages 11 to 14. Accessories and tools: See pages 8 to 10.

6

Ordering Information

A22

Subassembled …………………..The Pushbutton, Lamp, or Switch can be ordered separately. Use them in combination for models that are not
available as assembled Units. These can also be used as inventory for maintenance parts.
Lamp
LED Lamp

Appearance
AC and DC

Operating voltage

6 VAC/VDC

LED Color

Model

Red

A22-6AR

Green

A22-6AG

Yellow *2

A22-6AY

Blue

A22-6AA

12 VAC/VDC Model
A22-12AR A22-12AG A22-12AY A22-12AA

1. For voltage-reduction lighting, use the A22-24A@. Only 24-V LED lamps can be used. 2. Used when the Pushbutton color is yellow or white.

24 VAC/VDC Model
A22-24AR A22-24AG A22-24AY A22-24AA

Switch (Standard Load) No Voltage Reduction Unit

Classification

Non-lighted

Lighted

Appearance

Contacts
Standard load

Operation

Momentary

Model

SPST-NO

A22-10M

SPST-NC

A22-01M

SPST-NO + SPST-NC A22-11M

SPST-NO + SPST-NO A22-20M

SPST-NC + SPST-NC A22-02M

Alternate Model
A22-10A A22-01A A22-11A A22-20A A22-02A

Voltage Reduction Unit
Classification

110 VAC, Lighted

Appearance

Momentary Model
A22L-10M A22L-01M A22L-11M A22L-20M A22L-02M

Alternate Model
A22L-10A A22L-01A A22L-11A A22L-20A A22L-02A

220 VAC, Lighted

Contacts
Standard load

Operation

Momentary

Model

SPST-NO

A22L-10M-T1

SPST-NC

A22L-01M-T1

SPST-NO + SPST-NC A22L-11M-T1

SPST-NO + SPST-NO A22L-20M-T1

SPST-NC + SPST-NC A22L-02M-T1

Alternate Model
A22L-10A-T1 A22L-01A-T1 A22L-11A-T1 A22L-20A-T1 A22L-02A-T1

Momentary Model
A22L-10M-T2 A22L-01M-T2 A22L-11M-T2 A22L-20M-T2 A22L-02M-T2

1. A DPST-NO model is shown here as an example. 2. For a model with a Voltage Reduction Unit, use the A22-24A@. Only 24-V LED lamps can be used.

Alternate Model
A22L-10A-T2 A22L-01A-T2 A22L-11A-T2 A22L-20A-T2 A22L-02A-T2

Ordering set combinations: Refer to pages 3 to 4.

Specifications and dimensions: See pages 11 to 14. Accessories and tools: See pages 8 to 10.

7

Ordering Information

Accessories (Order Separately)
Accessories

Item

Appearance

Switch Blocks

Lamp Sockets

Mounting Latches

Legend Plate Frames

Standard size
Large size

Classification

SPST-NO

Standard load Microload

SPST-NC

Standard load Microload

DPST-NO

Standard load Microload

DPST-NC

Standard load Microload

SPST-NO + SPST-NC

Standard load Microload

Direct lighting

Voltage-reduction lighting

110 VAC 220 VAC

For momentary models

For alternate models

With Snap-in Legend Plate (Without text)

White Red Black

Without Snap-in Legend Plate

With Snap-in Legend Plate (Without text)

White Red Black

Without Snap-in Legend Plate

Model A22-10 A22-10S A22-01 A22-01S A22-20 A22-20S A22-02 A22-02S A22-11 A22-11S A22-TN
A22-T1
A22-T2
A22-3200
A22-3210
A22Z-3321 A22Z-3322 A22Z-3323 A22Z-3320 A22Z-3331 A22Z-3332 A22Z-3333 A22Z-3330

Lock Ring

Round

A22Z-3360

Metallic Bezel Rings Sealing Caps

Color Caps

Caps

For A22 For M22

For flat or projection models

A22Z-3580

For full-guard models

A22Z-3582

For flat models

A22Z-3600F

For projection models

A22Z-3600T

For full-guard models
Red Green Yellow White Blue
For projection, full-guard, or half-guard models

A22Z-3600G
A22Z-30TR A22Z-30TG A22Z-30TY A22Z-30TW A22Z-30TA
A22Z-3490

For round models

A22Z-3495

Three-throw Spacer

—

A22Z-3003

Hole Plug
Control Boxes (Enclosures)
Connectors

Round

One hole

One hole, yellow box

Two holes

Three holes

Applicable cable diameter (mm)

7 to 9 dia. 9 to 11 dia.

A22Z-3530
A22Z-B101 A22Z-B201 A22Z-B101Y A22Z-B201Y A22Z-B102 A22Z-B202 A22Z-B103 A22Z-B203
A22Z-3500-1
A22Z-3500-2

A22
Remarks
Order Switch Blocks to add an SPST-NO (A22-10) or SPST-NC (A22-01) Switch Block (for standard loads) or to replace a Switch Block. An A22Z-3003 Three- throw Spacer is required to mount three Non-lighted Switch Units.
Used when changing the lighting method. (LED only) Provided as standard. Order Mounting Latches only when mounting Switch Blocks or Lamp Sockets that are purchased individually.
Snap-in Legend Plate is acrylic.
Snap-in Legend Plate is acrylic.
This Lock Ring is used when a more secure lock feature is required.
Replace with the standard model. Material: Copper alloy-Nickel chrome plating Cannot be used with the M22.
Used to prevent dust or water from entering the Operation Unit (Pushbutton, etc.). Color: opaque Material: silicon
Used for changing the Pushbutton color of the (round) Pushbutton Switches. Cannot be used, however, with Half-guard Switches.
Material: polycarbonate resin
Used when mounting three Nonlighted Switches. Cannot be used with Alternate action type, knob-type Selector, and Keytype Selector because of the structure. Mushroom-type Switch provides an A22Z3003, three-throw spacer. (See page 26.) Can be plugged into pre-cut panel holes for future expansion. The color is black. Color: Black
For those designed A22Z-B1@, DPST-NO or DPST-NC Switches cannot be used. A22Z-B2@ Control Boxes, A22-series alternate operation models, and DPST-NO, DPST-NC, and SPST-NO + SPST-NC contacts cannot be used. Material: Polycarbonate resin
Plastic connector used to extend a cable from the Switch Box. (See 9 to 11 dia. A22Z3500-2 page 25.)

8

Ordering Information

Item

Appearance

25-dia. Ring

30-dia. Resin Attachment

Lock Plate

Simple Protective Cover

A22

Classification —
Round —–

Model A22Z-R25

Remarks
Use when mounting to a panel with a 25-dia. hole. For details, refer to page 16. Since this is not attached to the main body, order separately.

A22Z-A30

Use when mounting to a panel with a 30-dia. hole. For details, refer to page 18.

A22Z-3380

Use to fix the lever on the Switch.

A22Z-3700

Prevents foreign matter entering into the Switch from the back of the panel.

Specifications: See pages 11 to 12. Dimensions: See page 14.

Precautions for correct use: See page 21. Accessories and tools: See pages 8 to 10.

9

Ordering Information

Item

Appearance

Standard size
Snap-in Legend Plates

Large size
For Emergency Stop Switch
Character Films

Tools
Item
Lamp Extractor

Appearance

A22

Classification

Black

Without text

Red White

Transparent

White text on red

background

STOP

|

START

With text

White text on

ON OFF

black background

UP

DOWN

POWER ON

OFF-ON

Black

Without text

Red White

Transparent

Black text on yellow background

60-dia. round plate with black letters on a yellow background
90-dia. round plate with black letters on a yellow background

No print (Round)

Character print (Round)

|
START STOP

No print (Square)

Model A22Z-3443B A22Z-3443R A22Z-3443W A22Z-3443C A22Z-3443R-2 A22Z-3443R-4 A22Z-3443B-1 A22Z-3443B-3 A22Z-3443B-5 A22Z-3443B-6 A22Z-3443B-7 A22Z-3443B-8 A22Z-3443B-9 A22Z-3443B-10 A22Z-3453B A22Z-3453R A22Z-3453W A22Z-3453C
A22Z-3466-1
A22Z-3476-1
A22Z-3460 A22Z-3460-1 A22Z-3460-2 A22Z-3460-3 A22Z-3460-4 A22Z-3480

Remarks
Attached to the Standard-size Legend Plate Frame. (See page 26.) Material: Acrylic
Used as an Emergency Stop Switch Legend Plate. (See page 26.) Material: Acrylic EMERGENCY STOP is engraved on the plate. Used as an Emergency Stop Switch Legend Plate
After printing on a film, affix to the indicator plate of the Lighted Pushbutton Switch. (The back is coated with adhesive.)

Classification —

Model A22Z-3901

Remarks
Rubber tool used to easily replace Lamps

Tightening Wrench

Used to tighten mounting nuts from the

—

A22Z-3905

back of the panel and to replace the cap

of the Lighted Emergency Switch.

Cap Tightening Tool

—

A22Z-3908

Used for replacing the cap of the Halfguard Pushbutton Switch.

Cap Puller

Used for removing the cap from the

—

A3PJ-5080

Pushbutton of the Square Lighted Push-

button Switch.

Specifications: See pages 11 to 12. Dimensions: See page 14.

Precautions for correct use: See page 21. Accessories and tools: See pages 8 to 10.

10

Specifications

Approved Standard Ratings
UL, cUL (File No. E41515)
6 A at 220 VAC, 10 A at 110 VAC
Note: Only Switch Blocks and Lamp Sockets are recognized by UL. Refer to Page 8 for the model numbers.
EN60947-5-1 (Low Voltage Directive)
3 A at 220 VAC
CCC (GB/T14048.5)
3 A at 240 VAC, 1.5 A at 24 VDC

Ratings
Contacts (Standard Load)

Contacts (Standard
Load)

Rated voltage

Rated current (A)
Induc- Resis- Inductive load tive load tive load

Resistive load

24 VAC

10

110 VAC

5

10

220 VAC

3

380 VAC

2

6

—

3

10A

440 VAC

1

24 VDC

110 VDC —
220 VDC

2

1.5

10

0.5

2

—

0.2

0.6

380 VDC

0.1

0.2

Note: 1. The above ratings were obtained by conducting tests under the
following conditions. (1) Ambient temperature: 20±2°C (2) Ambient humidity: 65±5% RH (3) Operating frequency: 20 operations/minute
2. Minimum applicable load: 10 mA at 5 VDC

A22

Contacts (Microload)
Rated applicable load Minimum applicable load

100 mA at 30 VDC (Resistive load) 1 mA at 5 VDC

LED Indicators
Rated voltage 6 VAC/VDC 12 VAC/VDC 24 VAC/VDC

Rated current 8 mA

Operating voltage 6 VAC/VDC±5% 12 VAC/VDC±5% 24 VAC/VDC±5%

Voltage-reduction Lighting

Rated voltage 110 VAC
220 VAC

Rated current
8 mA

Operating voltage
100 VAC (95 to 115 V)
200 VAC (190 to 230 V)

Applicable lamp (BA9S/Base: 13)
LED Lamp
(A22-24A@)

11

Specifications

A22

Characteristics

Type

Pushbutton Switches

Knob-type Selector Switches

Key-type Selector Switch

Item

Non-lighted models: Lighted models:

A22-H A22-S

A22L-H A22L-C

A22-C A22-D

A22L-D

Non-lighted model: Lighted model: Non-lighted model:

A22S

A22W

A22K

Allowable Mechanical operating frequency Electrical

Momentary operation: 60 operations/minute max.

Manual reset: 30 operations/minute max. Automatic reset: 30 operations/minute max.
30 operations/minute max.

Insulation resistance

100 M min. (at 500 VDC)

Contact Standard load resistance Microload

100 m max. (initial value) 100 m max. (initial value)

Dielectric strength

Between terminals of same polarity
Between each terminal and ground

2,500VAC, 50/60Hz for 1min 2,500VAC, 50/60Hz for 1min

Vibration resistance

Malfunction *1

Malfunction *2: 10 to 55 Hz, 1.5-mm double amplitude

Shock

Destruction

resistance Malfunction *1

1,000 m/s2 max. 1,000 m/s2 max.

1,000 m/s2 max. 600 m/s2 max.

1,000 m/s2 max. 1,000 m/s2 max.

1,000 m/s2 max. 600 m/s2 max.

1,000 m/s2 max. 1000 m/s2 max.

Mechanical Durability
Electrical

Momentary operation: 5,000,000 operations min.
500,000 operations min.

Ambient operating temperature * 2

-20°C to 70°C

Ambient operating humidity

Ambient storage temperature *2

Degree of protection *3

IP65 (oil-resistant)

Electric shock protection class

PTI (tracking characteristic)

Degree of contamination

1. Malfunction within 1 ms. 2. With no icing or condensation. *3. Degree of protection from the front of the panel.

-20°C to 55°C IP65

500,000 operations min.
500,000 operations min.
-20°C to 70°C

100,000 operations min.
100,000 operations min.
-20°C to 55°C

35% to 85% RH

-40°C to 70°C

IP65 (oil-resistant)

IP65

Class II

175 3 (IEC947-5-1)

500,000 operations min.
500,000 operations min. -20°C to 70°C
IP65 (oil-resistant)

Indicator M22 —–
1,000 m/s2 max. 600 m/s2 max.
—–20°C to 55°C
IP65

Operating Characteristics (for SPST-NO/SPST-NC)

Type Pushbutton Switches

Knob-type Selector

Lighted Nonlighted Pushbutton Switches

Manual reset

Automatic reset

Item

A22-H A22-C A22-D A22-S A22L-H A22L-C A22L-D

A22S A22W

Total travel force (TTF) max.

29.4 N

0.34 N·m*

0.25 N·m for two notches 0.34 N·m for three notches

Total travel (TT)

5.5 mm max.

Approx. 90° for two notches (Approx. 45° for three notches)

Resetting force (RF) min.

—

0.34 N·m max.*

—

Rotation torque for Knob-type Selector and Key-type Selector Switches.

Key-type Selector Switch

Manual reset

Automatic reset

A22K

0.34 N·m*

0.25 N·m for two notches 0.34 N·m for three notches

Approx. 90° for two notches (Approx. 45° for three notches)

0.34 N·m max.*

—

12

Nomenclature
Model Structure
Lock Ring

A22
Pushbutton
· Available Colors Non-lighted: Red, Green, Yellow, White, Blue, Black Lighted: Red, Green Yellow, White, Blue
Lamp
· Light Source LED lamp

The above illustration shows a lighted model.

Switch
· Contacts SPST-NO, SPST-NC, SPST-NO + SPST-NC, SPST-NO + SPST-NO, SPST-NC + SPST-NC (Minimum applicable load: 10 mA at 5 VDC)
· Lighting Method Non-lighted Lighted (without Voltage Reduction Unit) Lighted (with Voltage Reduction Unit)

13

Dimensions

Lighted/Non-lighted Pushbutton Switches (The following illustrations are for momentary operation.)

Half-guard Type/A22-H/A22L-H
18.5

Square/Projection type/A22-C/A22L-C

A22
(Unit: mm)

29.7 dia.

34

1.8

0.5

5.9

12

54.7 *

Square/Full-guard Type/A22-D/A22L-D

29.8 × 29.8

25.6 × 25.6

34

0.5

1.8

12

5.9

18

54.7 *

29.8 × 29.8

8

34

0.5 5.3
18

1.8
5.9 54.7 *

Note: Lighted models have the same dimensions as shown above, whether they are with or without Voltage Reduction Units. * Alternate operation models are 9.3 mm longer.

14

Dimensions

Terminal Arrangement (Bottom View)

Non-lighted (SPST-NO + SPST-NC)

Lighted (SPST-NO + SPST-NC)

20.7 10 Switch Blocks

Non-lighted (DPST-NO + DPST-NC)
20.7

16.7 22

M3.5 screw Switch Blocks

Lamp socket

Terminal Connection
Item
Non-lighted (SPST-NO + SPST-NC)

Terminal connection BOTTOM VIEW

1

3

Non-lighted (DPST-NO + DPST-NC)
Lighted without Voltage Reduction Unit (SPST-NO + SPST-NC)
Lighted with Voltage Reduction Unit (SPST-NO + SPST-NC)

2

4

BOTTOM VIEW

11

13

21

23

22

24

12

14

BOTTOM VIEW

1

X1

3

(+)

X

2

X2

4

(-)

BOTTOM VIEW

1

X1

3

X

2

X2

4

Panel Cutouts

12 32 Switch Blocks

22.3

+0.4 0

dia.

25+0.50 dia.

Lock ring is provided as a standard item.

· When applying coating such as paint to the panel, the dimensions should be those after the application of coating.

· Recommended panel thickness: 1 to 5 mm.

· Use an A22Z-R25 Ring when mounting to a panel with 25-mm holes.

A22
(Unit: mm)

15

Dimensions
Accessories
Legend Plate Frames Standard Models A22Z-332@
27
8.3

Large

27

2.2 A22Z-333@

18

A22
(Unit: mm)
2.2

40.8 30.3 15
Lamp LED A22-6@, 12@, 24@

20.5

28 dia. 28 dia.

2.8 29.8

22.2

±

0.3 0.1

dia.

0.3

1.5

20 ±1.5

50.8 30.3 15

20.5

28 dia. 28 dia.

2.8 29.8

22.2

±

0.3 0.1

dia.

0.3 0.3 1.5

10.6 dia. 9.5 dia. 22 dia. 24.8 dia. 27 dia.

Model indication
Lock Ring A22Z-3360
2 1
20.5 30 dia.

BA9S/13

25-dia. Ring A22Z-R25

22.2 dia.

Color Cap A22Z-30T@

0.5

2.8

1.3

Hole Plug (Round) A22Z-3530

6

23.4 dia.

10.2

Caps

A22 (for round models) A22Z-3490

5.2

1

30 dia.
M22 (for round models) A22Z-3495
1

1 13 2.5
11.1

17.6 17.9 dia. 19.6 dia.
22.5 17.6 23.7 dia. 21.1 dia. 21.4 dia. 24.1 dia.

16

Dimensions
Sealing Caps For Flat Models A22Z-3600F
32 dia.

A22
(Unit: mm)

For projection models A22Z-3600T
32 dia. (26 dia.)

For full-guard models A22Z-3600G
31.5 dia.

1R R2
R1
1R

16.6

22.2 dia. 33 dia.

Metallic Bezel Rings For Flat/Projection Models A22Z-3580

28.7 dia.

24±

0.2 0

dia.

23 14.5

22.2 dia. 33 dia.

For full-guard models A22Z-3582

24

22.2 dia. 32.5 dia.

28.7 dia.

24±

0.2 0

dia.

11.5 5

18.5 5

M27 P=1 M27 P=1

29.7± 0.3 dia.

Snap-in Legend Plates For Standard Models A22Z-3443@-@

For Large Models A22Z-3453@

26.8

1

8.2

26.8

1

17.9

For Emergency-stop Models

A22Z-3476-1 (90 dia.)

A22Z-3466-1 (60 dia.)

CY
CY

Black letters Yellow t1

EM

ERGEN

90 dia.

STOP

22.2 dia.

Black letters Yellow t1

EM

ERGEN

60 dia.

STOP

22.2 dia.

Character Film For Round Models A22Z-3460-@

17± 0.2

1.2±

0.2 0

For Square Models A22Z-3480

0.2 0

1.2±

17± 0.2

t 0.22

19.4±0.10.2

t 0.22

21.5

×

21.5±

0.2 0.3

17

Dimensions

Lamp Extractor A22Z-3901

55 17.5 12.5

11 dia. 8.5 dia.

Tightening Wrench A22Z-3905

A22
(Unit: mm)

19.2 dia. 21.2 dia. 25 dia.

8 dia.

30 dia.

4.5

20

90

2

Cap Tightening Tool A22Z-3908
23.4 20.5

30-dia. Resin Attachment A22Z-A30

5 dia.

20.5

6.1 3.8

2.8

34.7 dia.

1 30
Cap Puller A3PJ-5080
20 2.5
15 50

Simple Protective Cover A22Z-3700

47.2 2.8

57.5 20.5 56

30 × 30
47 50

22.5 dia.

9

25.1

29.5

42.2

0.3 recess

22.2 dia.

2.5 5 10 0.3
25±2

Lock Plate A22Z-3380
9.7 8
18

34.5 30.1

10 16.5
4

5.3

7.3 dia.

5

13.2

4

Three-throw Spacer A22Z-3003
10.8 6 2.5

13.7 dia. 12.9 dia.
9

16.5 78.8

11 6.1
3.4 14.2 dia.

18

Dimensions
Control Box (Enclosure) A22Z-B10@

A22
(Unit: mm)

A22Z-B101 (One Hole) A22Z-B101Y
Four, M4 Phillips binding screws 22.1 dia.

Cover (*)

Cable Port Hole (Top View)

2.8 36 68 69.5 41 20
41 56

20.5 75

10 (10×36) 0.6-mm concave surface

A22Z-B102 (Two Holes)
Four, M4 Phillips binding screws Two, 22.1 dia.

Case (black) Two, 21 dia. (Lead cable hole)

A22Z-B101: gray A22Z-B101Y: yellow
Cover (gray)

16±1 dia.
(Lead cable hole)

Two

32

mounting holes

39

Cable Port Hole (Top View)

3 6 6 8 69.5 4 1 2 0
4 1

50 137
A22Z-B103 (Three Holes)
Four, M4 Phillips binding screws Three, 22.1 dia.

(10×36) 0.6-mm 10 concave surface

Case (black)

21 dia. (Lead cable hole)

16±1 dia
(Lead cable hole)

Cover (gray)

Two

mounting

94

holes

101

Cable Port Hole (Top View)

5 6 5 6

3 6 6 8 69.5 4 1 2 0
4 1

50

199

10

Case (black)

21 dia.

156

(Lead cable hole)

(10×36) 0.6-mm

16±1 dia

163

concave surface

(Lead cable hole)

(Panel Mounting Hole)
3R 4.3
6.3

Two mounting holes

19

54 4 0 5 4 40 54

Dimensions
Control Box A22Z-B20@
A22Z-B201 (One Hole) A22Z-B201Y
Four, M4 Phillips binding screws 22.1 dia.

A22
(Unit: mm)

Cable Port Hole (Top View)

Cover (*)

21 dia. (both sides)

2.8 36 68 60 30.5 16

20.5

10

68

(10×36) 0.6-mm concave surface

A22Z-B202 (Two Holes)
Four, M4 Phillips binding screws Two, 22.1 dia.

Two, 21 dia.

Case (black)

Two, 19 dia. (base)

A22Z-B201: gray A22Z-B201Y: yellow

Two mounting holes 40

Cable Port Hole (Top View)

Cover (gray)
21 dia. (both sides)
Two, 21 dia.

3 6 6 8 6 0 30.5 1 6

(10×36) 0.6-mm

50

10 concave surface

137

Case (black)

Two, 19 dia.

78

(base)

98

Two mounting holes

A22Z-B203 (Three Holes)
Four, M4 Phillips binding screws Three, 22.1 dia.

Cover (gray)

21 dia. (both sides)

Cable Port Hole (Top View)

36 68 60 30.5 16

50

10

(10×36) 0.6-mm concave surface

Case (black)

138

199

Two, 19 dia.

158

(base)

Two, 21 dia.

(Panel Mounting Hole)
3R
4.3 6.3

Two mounting holes

20

Safety Precautions

A22

Refer to Safety Precautions for All Pushbutton Switches/Indicators.

WARNING
Do not apply a voltage between the LED and the terminal that is greater than the rated voltage. If the LED is broken, the Operation Units may pop out. Always turn OFF the power and wait for 10 minutes before replacing the incandescent lamp. If the lamp is replaced immediately after the power is turned OFF, the remaining heat may cause burns.

Precautions for Correct Use

Mounting
· Do not perform wiring with power supplied to the Switch. Do not touch the terminals or other charged parts of the Switch while power is being supplied. Doing so may result in electric shock.
· Always make sure that the power is turned OFF before mounting, removing, or wiring the Switch, or performing maintenance. Do not tighten the mounting ring more than necessary using tools such as pointed-nose pliers. Doing so will damage the mounting ring. The tightening torque is 0.98 to 1.96 N·m.
· Recommended panel thickness: 1 to 5 mm. · When mounting the caps after changing the LED or the caps,
tighten the caps at a tightening torque of 0.49 tp 0.78 N·m.
Wiring
· Terminal screws must be Phillips or slotted M3.5 screws with a square washer.
· The tightening torque is 1.08 to 1.27 N·m. · Solid wires, stranded wires, and crimp terminals can be connected
to the Switch.
Applicable Wire Size
Stranded wire: 2 mm2 max. Solid wire: 1.6 dia. max.
Bare Crimp Terminals

8 mm max.

16.0 mm max.

Crimp Terminals with Insulating Sheath

8 mm max.

LED
· The LED current-limiting resistor is built-in, so internal resistance is not required.
· If commercially available LEDs are used, select the ones that meet the following conditions: Base: BA9S/13 Overall length: 26 mm max. Power consumption: 2.6 W max. When DC-specific LEDs are used, wire the Switch so that the X1 terminal is positive.
· Mis-lighting of the LED The LED lights with approx. 0.1 mA or less of micro- current. Take a countermeasure like adding a resistor to prevent mis-lighting in parallel to the LED. The micro-current varies with the machine (leak current or stray capacity between cables, etc.). Select resistance value and allowable power consumption that meet the actual current.
(Circuit example)
In case of using 24 VAC/VDC, Direct lighting
X1

LED lamp

R:10k (1W) Bleeder resistor

X2

Others
· If the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after the coating.
· Do not subject the Switch to extreme shock or vibration. Doing so will cause malfunctions and damage to the Switch.
Using the Microload
· Insert a contact protection circuit, if necessary, to prevent the reduction of life expectancy due to extreme wear on the contacts caused by loads where inrush current occurs when the contact is opened and closed. The minimum applicable load is the N-level reference value. This value indicates the malfunction reference level for the reliability level of 60% ( 60) (conforming to JIS C5003). The equation, 60 = 0.5 x 10-6/operations indicates that the estimated malfunction rate is less than 1/2,000,000 operations with a reliability level of 60%.

20.2 mm max.

· After wiring the Switch, maintain an appropriate clearance and creepage distance.
Operating Environment
· The IP65 model is designed with a degree of protection so that it will not sustain damage if it is subjected to water from any direction to the front of the panel.
· This switch is intended for indoor use only. Using the Switch outdoors will result in failure.

Voltage (V)

0.16 mA 30

1.6 mA

100 mA

24 Microload area

12
Invalid area 5
0 0.1

1 mA 1

10 mA 10

Standard load area

100

1,000

Current (mA)

21

A22

Application
Mounting to the Panel
Panel Hole Dimensions · Panel hole dimensions are given below. · Recommended panel thickness: 1 to 5 mm.

22 dia.

3.2

+0.2 0

0.8R max.

25 dia.

24.1+0.40

22.3

+0.4 0

Not Using a Lock Ring

22.3+0.04
Using a Lock Ring

25

+0.5 0

· For 25-dia. holes, always use 25-dia. Rings. (Since the cutout dimensions are large, IP65 cannot be guaranteed unless 25-dia. Rings are used.)
· 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.

Matrix Installation
1. The following panel hole dimensions apply when Switch Unit and the Standard-size Legend Plate Frame and Lock Ring are mounted, and lead wires are connected directly to the Switch Block.

30 A

2. The following panel hole dimensions apply when the Large-size Legend Plate Frame is mounted, and when crimp terminals are connected to the Switch Block terminals.
30

B

Pitches A and B between the centers of the mounting holes are as follows:
For 1. above:

Switch Blocks
A22-10, A22-10S A22-01, A22-01S
A22-20, A22-20S, A22-02 A22-02S, A22-11, A22-11S

A 45 mm min. 55 mm min.

For 2. above:

Type of crimp terminal

Switch Blocks

B

Bare crimp terminals

A22-10, A22-10S A22-01, A22-01S
A22-20, A22-20S, A22-02 A22-02S, A22-11, A22-11S

51 mm min. 61 mm min.

Crimp terminals with insulating sheath

A22-10, A22-10S A22-01, A22-01S
A22-20, A22-20S, A22-02 A22-02S, A22-11, A22-11S

60 mm min. 70 mm min.

Note: 1. The above dimensions are the minimum dimensions for when the wires described under Applicable Wire Size on page 21 are used. If a different wires are used, the wiring dimensions may be different so determine an appropriate pitch before setup.
2. With pushbuttons of external dimensions greater than 30 mm, set the pitch according to the dimensions. (When using matrix installation for the A22-M@, mount with a pitch of 40 mm instead of 30 mm in the diagram above.)

Mounting the Operation Unit on the Panel · Insert the Operation Unit (Pushbutton, etc.) from the front surface of the
panel, insert the Lock Ring and the mounting nut from the terminal side, then tighten the nut. Before tightening, check that the rubber washer is present between the Pushbutton Unit and the panel. · When using a Legend Plate Frame, put one rubber washer each between the Legend Plate Frame and the panel and between the Operation Unit and the Legend Plate Frame. (One rubber washer will be provided when one Legend Plate Frame is ordered.) · Align the Lock Ring with the groove in the casing, then insert the Lock Ring so that its edge is located on the panel side.

22

· Tighten the mounting nut at a torque of 0.98 to 1.96 N·m. · When using a Lock Ring, replace with the supplied Lock Ring,
insert the projecting part into the lock slot, and then tighten the
mounting nut.

Hold here

Rubber washer Mounting nut

Panel
Projecting part

Mounting/Replacing the Color Cap
Projection, Fall-guard · Grip and rotate the Color Cap with your fingers.

A22

Lock Ring

Panel

Lock Ring

· When the panel cutout dimension is 25 dia., remove the supplied rubber washer and mount the 25-dia. Ring as shown below. (Since the A22Z-R25 is not attached to the main body, order separately.)

Operation Unit

Half-guard Indicators · Put the tips of the Cap Tightening Tool (A22Z-3908) into the Color
Cap slot and turn the Tool.

22 dia.

25-dia. Ring (A22Z-R25)

22.3 dia. 25 dia.

0.5 1.3

Assembling the Cap
Lighted Pushbutton Switch · Mount the Color Cap so that the protrusions inside the cap fit into
the grooves in the Pushbutton Unit.

Panel

25 dia.

Lock Ring

22.3 dia.

Mounting nut
Mounting the Switch on the Pushbutton Unit · Insert the Pushbutton Unit into the Switch Unit, aligning the arrow
mark inscribed on the Case with the lever on the Switch Blocks, then move the lever in the direction indicated by the arrow in the following figure.
Operation Unit

Arrow mark Lever

Removing the Switch · Move the lever in the
direction indicated by the arrow in the following figure, then pull the Pushbutton Unit or the Switch Blocks. Since the lever has a hole with an inside diameter of 6.5 mm, the lever can be moved in the specified direction by inserting a screwdriver into the hole and then moving the screwdriver.

Screwdriver

Protrusion inside cap
Color Cap Indicator · Mount the Color Cap so that the protrusions inside the Pushbutton
Unit fit into the grooves in the cap.
Cap Protrusion
Grooves Color Cap

23

A22

Square Pushbutton/Indicator · Square Pushbutton/Indicator
Insert the protruding tip of the Cap Puller (A3PJ-5080) into the Cap slot, hold the plate spring, and pull them to remove the Color Cap.

Installing/Replacing the Lamp
Installing/Replacing from the Panel Surface · Insert the Lamp Extractor (A22Z-3901) into the lamp, then rotate
the Extractor while pressing it.

Plate spring
· Mounting the Color Cap: Mount the Color Cap on the flange and firmly push the Color Cap. When the Color Cap is inserted, check whether it operates properly. When replacing the Lamp, remove the Color Cap and diffusion plate with fingers or Cap Puller. Attach the Character Film properly so that it fits inside the protruding part of the diffusion plate. Then, match the diffusion plate to the square flange and insert the Cap.
Flange

Installing/Replacing on the Switch · Grip the lamp with your fingers, then rotate the lamp while pressing
it against the Switch.

Diffusion plate
Character Film
Color Cap Emergency Stop Switch · Insert the protrusion of the Tightening Wrench (A22Z-3905) into the
Cap slot and then turn to remove the Cap.

Control Box (Enclosure)
Mounting the Switch The Standard-size Legend Plate Frame can be mounted. Mount the Frame as shown in the following diagram. Mount the Switch in the same way as for an ordinary panel.
Snap-in Legend Plate

Creating a Cable Port Hole Place the tip of a screwdriver on the surface where the cable port hole is to be created with the cover attached and strike the screwdriver with a hammer to punch four holes.

Screwdriver Switch box

Side Cover Cable port hole

Groove

Make four holes in diagonal lines.

24

A22

Securing the Connector Cable 1. Insert the connector into the cable port hole in the Box and secure
with the fixing nut inside the box. 2. Open a hole in the thin rubber section of the rubber ring. 3. Pass the tightening cap through the cable, insert the cable into the
connector, and tighten the hexagonal nut to secure the cable.

Cable diameter 7 to 9 dia. 9 to 11 dia.

Connector A22Z-3500-1 A22Z-3500-2

Fixing nut

Rubber washer

Connector Tightening cap

Cable

Removing the Switch Blocks · Insert a screwdriver between the Mounting Latch and the Switch
Block, then push down the screwdriver in the direction indicated by the arrow in the following figure.

Use either of the following screwdrivers.

Flat-head screwdriver

3 to 6 mm

Phillips screwdriver 3 to 6 mm

Screwdriver

Inside

Outside

Box
Switch Blocks
Installing the Switch Blocks · Hook the small protrusion on the Switch Block into the groove on
the Mounting Latch on the other side of the lever, then push up the Switch Block in the direction indicated by the arrow in the figure below.

Mounting Latch

Lever

Wiring
Wiring Round Crimp Terminals · Loosen the terminal screw from the Switch Unit until it completely
comes off the groove, insert a screwdriver as shown in the following figure, then push up the washer in the direction indicated by the arrow to temporarily secure it. Now, a round crimp terminal can be connected. After inserting the terminal, tighten the screws to complete wiring.
Washer

Protrusion Switch Block

Screw

Screwdriver

Engraving
· Engrave the characters on the surface on the Cap. Make sure that the characters are aligned parallel to the imaginary line connecting the two protruding portions to the left and right of the Cap.
· The characters must not be engraved deeper than 0.5 mm. Apply an alcohol- based paint coating, such as melamine, alkyd, or acrylic resin paint coating, to the engraved characters.

Protruding portions on Cap

25

A22

Affixing Character Film
· Hold the Cap, remove the cardboard on the Film, and attach the Film to the Cap. Make sure that the protruding portions of the Cap engage he cutout portions of the Film and that the characters are aligned parallel to the imaginary line connecting the two protruding portions to the left and right of the Cap.

· The Snap-in Legend Plate is easily removed by pressing the Snapin Legend Plate from the back of the Legend Plate Frame.
· The Legend Plate Frame is made of acrylic resin, which is easily damaged by shock. Be sure to handle the Legend Plate Frame with care.

Remove the cardboard.

Protruding portions on Cap
Mounting and Dismounting Snap-in Legend
· Press and secure the Snap-in Legend Plate onto the Legend Plate Frame.
· The direction of the characters will vary with the mounting direction of the control panel if the Switch is a knob or key selector model. Legend Plate Frame
Snap-in Legend Plate
Concave surface · To easily remove the Snap-in Legend Plate from the Legend Plate
Frame mounted to the panel, insert a Tool with a thin tip into the space between the Snap-in Legend Plate and the Legend Plate Frame.

Engraving Method
Material: Acrylic · Engrave the characters directly on the matted side of the Snap-in
Legend Plate. · The characters must be engraved no deeper than 0.5 mm. · Apply alcohol-based paint coating to the engraved characters. · If the Snap-in Legend Plate is transparent, engrave the mirror-
written characters on the back of the Snap-in Legend Plate and apply paint coating to the characters. Then apply paint coating of a different color to the remaining part of the Snap-in Legend Plate.
Mounting Three-throw Spacer
Press and secure the two protruding portions of the Three-throw Spacer to the two indented portions of the inner side of the control panel.

Mounting the 30-dia. Resin Attachment
Pushbutton
Rubber washer (Operation Unit mounting part) Attachment
Rubber washer (included) Mounting panel
Lock Ring Mounting nut

26

Terms and Conditions Agreement
Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments.
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, MERCHANTABILITY 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 otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation 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 responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies 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 environments. 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.omron.com/global/ or contact your Omron representative for published information.
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.
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 Product 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. 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 PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof.
Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability 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 requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special 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.
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 Corporation
Industrial Automation Company http://www.ia.omron.com/