Industrial Automation

A22

Pushbutton Switch (Cylindrical 22/25-dia.)

A22

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

last update: April 1, 2024

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.

Ordering Information

Completely Assembled

Shipped as a set which includes the Pushbutton, LED (lighted type only), and Switch.
Not all combinations are possible.

Non-lighted (Round Type)

Operation		Momentary operation (self-resetting)	Alternate operation (self-holding)	Illumination color
Appearance	Output	Set	Set	Illumination color
Round/Half-guard type A22-H	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-HR-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-HR-02A
Round/Small-size Mushroom type (30-dia. head) A22-S	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	Illumination color
Square/Projection type A22-C	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-CG-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-CG-02A
Square/Guard type A22-D	SPST-NO	A22-D[]-10M	A22-D[]-10A
	SPST-NC	A22-D[]-01M	A22-DR-01A
	SPST-NO + SPST-NC	A22-D[]-11M	A22-D[]-11A
	SPST-NO + SPST-NO	---	---
	SPST-NC + SPST-NC	---	---

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	Illumination color
Round/Half-guard type LED lighting (without Voltage Reduction Unit) A22L-H	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-HR-24A-01M	A22L-HW-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	---
Round/Half-guard type LED voltage- reduction lighting (with Voltage Reduction Unit) A22L-H	SPST-NO		100 VAC	A22L-H[]-T1-10M	A22L-H[]-T1-10A
	SPST-NO		200 VAC	A22L-H[]-T2-10M	A22L-H[]-T2-10A
	SPST-NC		100 VAC	A22L-H[]-T1-01M	---
	SPST-NC		200 VAC	A22L-H[]-T2-01M	A22L-HY-T2-01A
	SPST-NO + SPST-NC		100 VAC	A22L-H[]-T1-11M	A22L-HG-T1-11A
	SPST-NO + SPST-NC		200 VAC	A22L-H[]-T2-11M	A22L-HR-T2-11A
	SPST-NO + SPST-NO		100 VAC	A22L-H[]-T1-20M	A22L-H[]-T1-20A
	SPST-NO + SPST-NO		200 VAC	A22L-HG-T2-20M	A22L-H[]-T2-20A
	SPST-NC + SPST-NC		100 VAC	A22L-H[]-T1-02M	---

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	Illumination color
Square/Projection type LED lighting (without Voltage Reduction Unit) A22L-C	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-CR-24A-01M	---
	SPST-NO + SPST-NC			A22L-C[]-24A-11M	A22L-C[]-24A-11A
	SPST-NO + SPST-NO			A22L-C[]-24A-20M	A22L-C[]-24A-20A
Square/Projection type LED voltage- reduction lighting (with Voltage Reduction Unit) A22L-C	SPST-NO		100 VAC	A22L-CW-T1-10M	A22L-C[]-T1-10A
	SPST-NO		200 VAC	A22L-C[]-T2-10M	A22L-CG-T2-10A
	SPST-NC		100 VAC	---	A22L-CW-T1-01A
	SPST-NC		200 VAC	A22L-C[]-T2-01M	---
	SPST-NO + SPST-NC		100 VAC	A22L-C[]-T1-11M	A22L-C[]-T1-11A
	SPST-NO + SPST-NC		200 VAC	A22L-C[]-T2-11M	A22L-C[]-T2-11A
	SPST-NO + SPST-NO		100 VAC	A22L-C[]-T1-20M	A22L-CG-T1-20A
	SPST-NO + SPST-NO		200 VAC	A22L-CG-T2-20M	A22L-C[]-T2-20A

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	Illumination color
Square/Full-guard type LED lighting (without Voltage Reduction Unit) A22L-D	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-DY-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-DA-24A-02M	A22L-DR-24A-02A
Square/Full-guard type LED voltage- reduction lighting (with Voltage Reduction Unit) A22L-D	SPST-NO		100 VAC	A22L-D[]-T1-10M	A22L-D[]-T1-10A
	SPST-NO		200 VAC	A22L-D[]-T2-10M	A22L-D[]-T2-10A
	SPST-NC		100 VAC	A22L-D[]-T1-01M	---
	SPST-NC		200 VAC	A22L-DR-T2-01M	---
	SPST-NO + SPST-NC		100 VAC	A22L-D[]-T1-11M	A22L-DW-T1-11A
	SPST-NO + SPST-NC		200 VAC	A22L-D[]-T2-11M	A22L-D[]-T2-11A
	SPST-NO + SPST-NO		100 VAC	A22L-D[]-T1-20M	A22L-D[]-T1-20A
	SPST-NO + SPST-NO		200 VAC	A22L-DG-T2-20M	A22L-D[]-T2-20A
	SPST-NC + SPST-NC		100 VAC	A22L-DR-T1-02M	---

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.

Pushbutton

Non-lighted

Sealing	IP65 oil-resistant models
Appearance	Half-guard type	Round/Mushroom type (30-dia. head)	Square/Projection type	Square/Full-guard type
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-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	Square/Projection type	Square/Full-guard type
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	---

Lamp

LED Lamp

Operating voltage			6 VAC/VDC	12 VAC/VDC	24 VAC/VDC
Appearance		LED light	Model	Model	Model
	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		Lighted
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		220 VAC, Lighted
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-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.

Accessories (Order Separately)

Accessories

Item		Classification		Model	Remarks
Switch Blocks		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.
		SPST-NO	Microload	A22-10S
		SPST-NC	Standard load	A22-01
		SPST-NC	Microload	A22-01S
		DPST-NO	Standard load	A22-20
		DPST-NO	Microload	A22-20S
		DPST-NC	Standard load	A22-02
		DPST-NC	Microload	A22-02S
		SPST-NO + SPST-NC	Standard load	A22-11
Lamp Sockets		Direct lighting		A22-TN
		Voltage- reduction lighting	110 VAC	A22-T1	Used when changing the lighting method. (LED only)
		Voltage- reduction lighting	220 VAC	A22-T2	Used when changing the lighting method. (LED only)
Mounting Latches		For momentary models		A22-3200	Provided as standard. Order Mounting Latches only when mounting Switch Blocks or Lamp Sockets that are purchased individually.
Mounting Latches		For alternate models		A22-3210
Legend Plate Frames	Standard size	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	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		Round		A22Z-3360	This Lock Ring is used when a more secure lock feature is required.
Metallic Bezel Rings		For flat or projection models		A22Z-3580	Replace with the standard model. Material: Copper alloy-Nickel chrome plating Cannot be used with the M22.
Metallic Bezel Rings		For full-guard models		A22Z-3582
Sealing Caps		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		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	For projection, full-guard, or half-guard models		A22Z-3490	Material: polycarbonate resin
Caps	For M22	For round models		A22Z-3495	Material: polycarbonate resin
Three-throw Spacer		---		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		Round		A22Z-3530	Can be plugged into pre-cut panel holes for future expansion. The color is black. Color: Black
Control Boxes (Enclosures)		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
		One hole		A22Z-B201
		One hole, yellow box		A22Z-B101Y
		One hole, yellow box		A22Z-B201Y
		Two holes		A22Z-B102
		Two holes		A22Z-B202
		Three holes		A22Z-B103
		Three holes		A22Z-B203
Connectors		Applicable cable diameter (mm)	7 to 9 dia.	A22Z-3500-1	Plastic connector used to extend a cable from the Switch Box.
Connectors		Applicable cable diameter (mm)	9 to 11 dia.	A22Z-3500-2
25-dia. Ring		---		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		Round		A22Z-A30	Use when mounting to a panel with a 30-dia. hole. For details, refer to Catalog.
Lock Plate		---		A22Z-3380	Use to fix the lever on the Switch.
Simple Protective Cover		---		A22Z-3700	Prevents foreign matter entering into the Switch from the back of the panel.

Item		Classification			Model	Remarks
Snap- in Legend Plates	Standard size	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
			White text on red background	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	Without text	Black		A22Z-3453B	Used as an Emergency Stop Switch Legend Plate. (See Catalog.) Material: Acrylic
			White		A22Z-3453W
			Transparent		A22Z-3453C
	For Emer- gency Stop Switch	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
	For Emer- gency Stop Switch	Black text on yellow back- ground	90-dia. round plate with black letters on a yellow background		A22Z-3476-1
Character Films		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
		No print (Square)			A22Z-3480

Tools

Item	Appearance	Classification	Model	Remarks
Lamp Extractor		---	A22Z-3901	Rubber tool used to easily replace Lamps
Tightening Wrench		---	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		---	A22Z-3908	Used for replacing the cap of the Half-guard Pushbutton Switch.
Cap Puller		---	A3PJ-5080	Used for removing the cap from the Pushbutton of the Square Lighted Pushbutton Switch.

last update: April 1, 2024

Product Category

Switches
- Push Buttons / Indicator Lamps
  - φ22(φ25) Type
    - A22NK
    - A22NN / A22NL
    - A22NS / A22NW
    - M22N
    - A22
    - A22[]
    - M22
    - A22R/M22R

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