Product Category

Switches

Push Buttons / Indicator Lamps

φ22(φ25) Type

A22NK

A22NN / A22NL

A22NS / A22NW

M22N

A22

A22[]

M22

Pushbutton Switch (Cylindrical 22/25-dia.)

A22

Install in 22-dia. or 25-dia. Panel Cutout (When Using a Ring)

Line Up
Specification

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 below. 

 image

Ordering Information

Completely Assembled

Shipped as a set which includes the Pushbutton, LED (lighted type only), and Switch. 

Non-lighted (Round Type)

Operation

Momentary operation
 (self-resetting)

Alternate operation
 (self-holding)

Illumination
 color

Appearance

Output

Set

Set

Round/Half-guard type
 A22-H
image

SPST-NO

A22-H[]-10M

A22-H[]-10A

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

SPST-NC

A22-H[]-01M

A22-H[]-01A

SPST-NO + SPST-NC

A22-H[]-11M

A22-H[]-11A

SPST-NO + SPST-NO

A22-H[]-20M

A22-H[]-20A

SPST-NC + SPST-NC

A22-H[]-02M

A22-H[]-02A

Round/Small-size
 Mushroom type
 (30-dia. head)
 A22-S
image

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

Note: The contact ratings are for standard loads. 

Non-lighted (Square Type)

Operation

Momentary operation
 (self-resetting)

Alternate operation
 (self-holding)

Illumination
 color

Appearance

Output

Set

Set

Square/Projection type
 A22-C
image

SPST-NO

A22-C[]-10M

A22-C[]-10A

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

SPST-NC

A22-C[]-01M

A22-C[]-01A

SPST-NO + SPST-NC

A22-C[]-11M

A22-C[]-11A

SPST-NO + SPST-NO

A22-C[]-20M

A22-C[]-20A

SPST-NC + SPST-NC

A22-C[]-02M

A22-C[]-02A

Square/Guard type
 A22-D
image

SPST-NO

A22-D[]-10M

A22-D[]-10A

SPST-NC

A22-D[]-01M

A22-D[]-01A

SPST-NO + SPST-NC

A22-D[]-11M

A22-D[]-11A

SPST-NO + SPST-NO

A22-D[]-20M

A22-D[]-20A

SPST-NC + SPST-NC

A22-D[]-02M

A22-D[]-02A

Note: The contact ratings are for standard loads. 

Lighted (Round Type)

Operation

Momentary
 operation
 (self-resetting)

Alternate
 operation
 (self-holding)

Illumination
 color

Appearance

Output

Lighting

Operating
 voltage

Set

Set

Round/Half-guard
 type
 LED lighting
 (without Voltage
 Reduction Unit)
 A22L-H
image

SPST-NO

LED

24 VAC/
 VDC

A22L-H[]-24A-10M

A22L-H[]-24A-10A

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

SPST-NC

A22L-H[]-24A-01M

A22L-H[]-24A-01A

SPST-NO +
 SPST-NC

A22L-H[]-24A-11M

A22L-H[]-24A-11A

SPST-NO +
 SPST-NO

A22L-H[]-24A-20M

A22L-H[]-24A-20A

SPST-NC +
 SPST-NC

A22L-H[]-24A-02M

A22L-H[]-24A-02A

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

SPST-NO

100 VAC

A22L-H[]-T1-10M

A22L-H[]-T1-10A

200 VAC

A22L-H[]-T2-10M

A22L-H[]-T2-10A

SPST-NC

100 VAC

A22L-H[]-T1-01M

A22L-H[]-T1-01A

200 VAC

A22L-H[]-T2-01M

A22L-H[]-T2-01A

SPST-NO +
 SPST-NC

100 VAC

A22L-H[]-T1-11M

A22L-H[]-T1-11A

200 VAC

A22L-H[]-T2-11M

A22L-H[]-T2-11A

SPST-NO +
 SPST-NO

100 VAC

A22L-H[]-T1-20M

A22L-H[]-T1-20A

200 VAC

A22L-H[]-T2-20M

A22L-H[]-T2-20A

SPST-NC +
 SPST-NC

100 VAC

A22L-H[]-T1-02M

A22L-H[]-T1-02A

200 VAC

A22L-H[]-T2-02M

A22L-H[]-T2-02A

Note: The contact ratings are for standard loads. 

Lighted (Square Type)

Operation

Momentary
 operation
 (self-resetting)

Alternate
 operation
 (self-holding)

Illumination
 color

Appearance

Output

Lighting

Operating
 voltage

Set

Set

Square/Projection
 type
 LED lighting
 (without Voltage
 Reduction Unit)
 A22L-C
image

SPST-NO

LED

24 VAC/
 VDC

A22L-C[]-24A-10M

A22L-C[]-24A-10A

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

SPST-NC

A22L-C[]-24A-01M

A22L-C[]-24A-01A

SPST-NO +
 SPST-NC

A22L-C[]-24A-11M

A22L-C[]-24A-11A

SPST-NO +
 SPST-NO

A22L-C[]-24A-20M

A22L-C[]-24A-20A

SPST-NC +
 SPST-NC

A22L-C[]-24A-02M

A22L-C[]-24A-02A

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

SPST-NO

100 VAC

A22L-C[]-T1-10M

A22L-C[]-T1-10A

200 VAC

A22L-C[]-T2-10M

A22L-C[]-T2-10A

SPST-NC

100 VAC

A22L-C[]-T1-01M

A22L-C[]-T1-01A

200 VAC

A22L-C[]-T2-01M

A22L-C[]-T2-01A

SPST-NO +
 SPST-NC

100 VAC

A22L-C[]-T1-11M

A22L-C[]-T1-11A

200 VAC

A22L-C[]-T2-11M

A22L-C[]-T2-11A

SPST-NO +
 SPST-NO

100 VAC

A22L-C[]-T1-20M

A22L-C[]-T1-20A

200 VAC

A22L-C[]-T2-20M

A22L-C[]-T2-20A

SPST-NC +
 SPST-NC

100 VAC

A22L-C[]-T1-02M

A22L-C[]-T1-02A

200 VAC

A22L-C[]-T2-02M

A22L-C[]-T2-02A

Note: The contact ratings are for standard loads. 

Operation

Momentary
 operation
 (self-resetting)

Alternate
 operation
 (self-holding)

Illumination
 color

Appearance

Output

Lighting

Operating
 voltage

Set

Set

Square/Full-guard
 type
 LED lighting
 (without Voltage
 Reduction Unit)
 A22L-D
image

SPST-NO

LED

24 VAC/
 VDC

A22L-D[]-24A-10M

A22L-D[]-24A-10A

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

SPST-NC

A22L-D[]-24A-01M

A22L-D[]-24A-01A

SPST-NO +
 SPST-NC

A22L-D[]-24A-11M

A22L-D[]-24A-11A

SPST-NO +
 SPST-NO

A22L-D[]-24A-20M

A22L-D[]-24A-20A

SPST-NC +
 SPST-NC

A22L-D[]-24A-02M

A22L-D[]-24A-02A

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

SPST-NO

100 VAC

A22L-D[]-T1-10M

A22L-D[]-T1-10A

200 VAC

A22L-D[]-T2-10M

A22L-D[]-T2-10A

SPST-NC

100 VAC

A22L-D[]-T1-01M

A22L-D[]-T1-01A

200 VAC

A22L-D[]-T2-01M

A22L-D[]-T2-01A

SPST-NO +
 SPST-NC

100 VAC

A22L-D[]-T1-11M

A22L-D[]-T1-11A

200 VAC

A22L-D[]-T2-11M

A22L-D[]-T2-11A

SPST-NO +
 SPST-NO

100 VAC

A22L-D[]-T1-20M

A22L-D[]-T1-20A

200 VAC

A22L-D[]-T2-20M

A22L-D[]-T2-20A

SPST-NC +
 SPST-NC

100 VAC

A22L-D[]-T1-02M

A22L-D[]-T1-02A

200 VAC

A22L-D[]-T2-02M

A22L-D[]-T2-02A

Note: The contact ratings are for standard loads. 

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 aintenance parts. 

image

Pushbutton

Non-lighted

Sealing

IP65 oil-resistant models

Appearance

Half-guard type
 image

Round/Mushroom type
 (30-dia. head)
 image

Square/Projection type
 image

Square/Full-guard type
 image

Color

Model

Model

Model

Model

Red

A22-HR

A22-SR

A22-CR

A22-DR

Green

A22-HG

A22-SG

A22-CG

A22-DG

Yellow

A22-HY

A22-SY

A22-CY

A22-DY

White

A22-HW

A22-SW

A22-CW

A22-DW

Blue

A22-HA

A22-SA

A22-CA

A22-DA

Black

A22-HB

A22-SB

A22-CB

A22-DB

Lighted

Sealing

IP65

Appearance

Half-guard type
 image

Square/Projection type

image

Square/Full-guard type

image

Color

Model

Model

Model

Red

A22L-HR

A22L-CR

A22L-DR

Green

A22L-HG

A22L-CG

A22L-DG

Yellow

A22L-HY

A22L-CY

A22L-DY

White

A22L-HW

A22L-CW

A22L-DW

Blue

A22L-HA

A22L-CA

A22L-DA

Lamp

LED Lamp

Operating voltage

6 VAC/VDC

12 VAC/VDC

24 VAC/VDC

Appearance

LED light

Model

Model

Model

image

AC and DC

Red

A22-6AR

A22-12AR

A22-24AR

Green

A22-6AG

A22-12AG

A22-24AG

Yellow *2

A22-6AY

A22-12AY

A22-24AY

Blue

A22-6AA

A22-12AA

A22-24AA

*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. 

Switch (Standard Load)

No Voltage Reduction Unit

Classification
 
 Appearance

Non-lighted

image

Lighted

image

Operation

Momentary

Alternate

Momentary

Alternate

Contacts

Model

Model

Model

Model

Standard
 load

SPST-NO

A22-10M

A22-10A

A22L-10M

A22L-10A

SPST-NC

A22-01M

A22-01A

A22L-01M

A22L-01A

SPST-NO + SPST-NC

A22-11M

A22-11A

A22L-11M

A22L-11A

SPST-NO + SPST-NO

A22-20M

A22-20A

A22L-20M

A22L-20A

SPST-NC + SPST-NC

A22-02M

A22-02A

A22L-02M

A22L-02A

Voltage Reduction Unit

Classification
 
 Appearance

110 VAC, Lighted

image

220 VAC, Lighted

image

Operation

Momentary

Alternate

Momentary

Alternate

Contacts

Model

Model

Model

Model

Standard
 load

SPST-NO

A22L-10M-T1

A22L-10A-T1

A22L-10M-T2

A22L-10A-T2

SPST-NC

A22L-01M-T1

A22L-01A-T1

A22L-01M-T2

A22L-01A-T2

SPST-NO + SPST-NC

A22L-11M-T1

A22L-11A-T1

A22L-11M-T2

A22L-11A-T2

SPST-NO + SPST-NO

A22L-20M-T1

A22L-20A-T1

A22L-20M-T2

A22L-20A-T2

SPST-NC + SPST-NC

A22L-02M-T1

A22L-02A-T1

A22L-02M-T2

A22L-02A-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. 

Accessories (Order Separately)

Accessories

Item

Appearance

Classification

Model

Remarks

Switch Blocks

image

SPST-NO

Standard
 load

A22-10

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.

Microload

A22-10S

SPST-NC

Standard
 load

A22-01

Microload

A22-01S

image

DPST-NO

Standard
 load

A22-20

Microload

A22-20S

DPST-NC

Standard
 load

A22-02

Microload

A22-02S

SPST-NO +
 SPST-NC

Standard
 load

A22-11

Microload

A22-11S

Lamp Sockets

image

Direct lighting

A22-TN

Voltage-
 reduction
 lighting

110 VAC

A22-T1

Used when changing the lighting
 method. (LED only)

220 VAC

A22-T2

Mounting Latches

image

For momentary models

A22-3200

Provided as standard. Order
 Mounting Latches only when
 mounting Switch Blocks or Lamp
 Sockets that are purchased
 individually.

For alternate models

A22-3210

Legend
 Plate
 Frames

Standard
 size

image

With Snap-
 in Legend
 Plate
 (Without
 text)

White

A22Z-3321

Snap-in Legend Plate is acrylic.

Red

A22Z-3322

Black

A22Z-3323

Without Snap-in Legend
 Plate

A22Z-3320

Large
 size

image

With Snap-
 in Legend
 Plate
 (Without
 text)

White

A22Z-3331

Snap-in Legend Plate is acrylic.

Red

A22Z-3332

Black

A22Z-3333

Without Snap-in Legend
 Plate

A22Z-3330

Lock Ring

image

Round

A22Z-3360

This Lock Ring is used when a
 more secure lock feature is
 required.

Metallic Bezel
 Rings

image

For flat or projection
 models

A22Z-3580

Replace with the standard model.
 Material: Copper alloy-Nickel
 chrome plating Cannot be used
 with the M22.

For full-guard models

A22Z-3582

Sealing Caps

image

For flat models

A22Z-3600F

Used to prevent dust or water
 from entering the Operation
 Unit (Pushbutton, etc.).
 Color: opaque
 Material: silicon

For projection models

A22Z-3600T

For full-guard models

A22Z-3600G

Color Caps

image

Red

A22Z-30TR

Used for changing the
 Pushbutton color of the (round)
 Pushbutton Switches. Cannot be
 used, however, with Half-guard
 Switches.

Green

A22Z-30TG

Yellow

A22Z-30TY

White

A22Z-30TW

Blue

A22Z-30TA

Caps

For A22

image

For projection, full-guard,
 or half-guard models

A22Z-3490

Material: polycarbonate resin

For M22

For round models

A22Z-3495

Three-throw
 Spacer

image

---

A22Z-3003

Used when mounting three
 Nonlighted Switches. Cannot be
 used withAlternate, Emergency
 Stop, Knob-type Selector, Key-
 type Selector, or Mushroom-
 type Switches.

Hole Plug

image

Round

A22Z-3530

Can be plugged into pre-cut
 panel holes for future expansion.
 The color is black.
 Color: Black

Control Boxes
 (Enclosures)

image

One hole

A22Z-B101

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

A22Z-B201

One hole, yellow box

A22Z-B101Y

A22Z-B201Y

Two holes

A22Z-B102

A22Z-B202

Three holes

A22Z-B103

A22Z-B203

Connectors

image

Applicable
 cable
 diameter
 (mm)

7 to 9 dia.

A22Z-3500-1

Plastic connector used to extend
 a cable from the Switch Box.

9 to 11 dia.

A22Z-3500-2

25-dia. Ring

image

---

A22Z-R25

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

30-dia. Resin
 Attachment

image

Round

A22Z-A30

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

Lock Plate

image

---

A22Z-3380

Use to fix the lever on the
 Switch.

Simple
 Protective Cover

image

---

A22Z-3700

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

Item

Appearance

Classification

Model

Remarks

Snap-
 in
 Legend
 Plates

Standard
 size

image

Without
 text

Black

A22Z-3443B

Attached to the
 Standard-size
 Legend Plate Frame.
 (See Catalog.)
 Material: Acrylic

Red

A22Z-3443R

White

A22Z-3443W

Transparent

A22Z-3443C

With text

White text
 on red
 background

○

A22Z-3443R-2

STOP

A22Z-3443R-4

White text
 on black
 background

|

A22Z-3443B-1

START

A22Z-3443B-3

ON

A22Z-3443B-5

OFF

A22Z-3443B-6

UP

A22Z-3443B-7

DOWN

A22Z-3443B-8

POWER ON

A22Z-3443B-9

OFF-ON

A22Z-3443B-10

Large
 size

image

Without
 text

Black

A22Z-3453B

Used as an
 Emergency Stop
 Switch Legend
 Plate. (See Catalog.)
 Material: Acrylic

Red

A22Z-3453R

White

A22Z-3453W

Transparent

A22Z-3453C

For
 Emer-
 gency
 Stop
 Switch

image

Black text
 on yellow
 back-
 ground

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

A22Z-3466-1

EMERGENCY STOP
 is engraved on the
 plate. Used as an
 Emergency Stop
 Switch Legend Plate

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

A22Z-3476-1

Character Films

image

No print (Round)

A22Z-3460

After printing on a
 film, affix to the
 indicator plate of
 the Lighted
 Pushbutton Switch.
 (The back is coated
 with adhesive.)

Character
 print
 (Round)

|

A22Z-3460-1

○

A22Z-3460-2

START

A22Z-3460-3

STOP

A22Z-3460-4

No print (Square)

A22Z-3480

Tools

Item

Appearance

Classification

Model

Remarks

Lamp Extractor

image

---

A22Z-3901

Rubber tool used to easily replace Lamps

Tightening Wrench

image

---

A22Z-3905

Used to tighten mounting nuts from the back
 of the panel and to replace the cap of the
 Lighted Emergency Switch.

Cap Tightening Tool

image

---

A22Z-3908

Used for replacing the cap of the Half-guard
 Pushbutton Switch.

Cap Puller

image

---

A3PJ-5080

Used for removing the cap from the Pushbutton
 of the Square Lighted Pushbutton Switch.