CSM_A22_DS_E_4_1
1
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 and
Safety Precautions on page 23.
List of Models
Non-lighted Pushbutton Switches Lighted Pushbutton Switches
Appearance Model
number Appearance Model
number Appearance Model
number
Round
Flat A22-F
Square
Projected A22-C
Round
Projected A22L-T
Projected A22-T Guard A22-D Full guard
A22L-G
Full guard A22-G
Mushroom
Mushroom
Small (30 dia.)
A22-S Half guard
A22L-H
Half guard A22-H
Mushroom
Medium
(40 dia.)
A22-M
Square
Projected
A22L-C
Guard
A22L-D
A22
2
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 6.
(1) (2) (3) (4) (5) (6)
A22 L - T R - 12A - 10 M
(2) Flange Shape
Non-lighted
Lighted
Code
Description
F
Round
Flat
TProjected
G
Full-guard
H Half-guard
CSquare Projected
D
Full-guard
S
Round
Mushroom
Small (30 dia.)
M
Mushroom
Medium
(40 dia.)
Code
Description
T
Round
Projection
G
Full-guard
H Half-guard
CSquare Projection
D
Full-guard
(1) Type
Code
Descrip-
tion
No
symbol
Non-lighted
L Lighted
(3) Illumination
Color
* For non-lighted type
only
Code
Descrip-
tion
RRed
GGreen
YYellow
WWhite
ABlue
BBlack*
(4) Light Source
Without Voltage Reduction Unit
With Voltage Reduction Unit
Note: LED incorporates the 24-VAC/
VDC type.
Code
Operating Voltage
No
symbol
Non-lighted
6A
LED
6 VAC/VDC
12A
12 VAC/VDC
24A
24 VAC/VDC
5Incan-
descent
lamp
5 VAC/VDC
12
12 VAC/VDC
24
24 VAC/VDC
Code
Operating Voltage
T1 LED 100 VAC
T2 200 VAC
(5) Contacts
Note: 1. The contact ratings
are for standard
loads. For
microloads, select
from the accessories
on page 10.
2. Refer to page 13
for contact ratings.
Code
Description
10 SPST-NO
01 SPST-NC
11 SPST-NO +
SPST-NC
20 DPST-NO
02 DPST-NC
(6) Switch Action
Note: 1. Momentary
operation:
Self-resetting
2. Alternate operation:
Self-holding
The Socket Unit
holds and the
Operation Unit
resets.
Code
Description
M
Momentary
A
Alternate
■ Specifications: See pages 13 to 14. ■ Precautions for correct use: Refer to page 23.
■ Dimensions: Refer to page16. ■ Accessories and tools: See pages 10 to 12.
A22
3
Ordering Information
Completely Assembled........ Shipped as a set which includes the Pushbutton, Lamp (lighted type only), and Switch.
Non-lighted (Round Type)
Note: The contact ratings are for standard loads.
Non-lighted (Square Type)
Note: The contact ratings are for standard loads.
Operation Momentary opera-
tion (self-resetting)
Alternate operation
(self-holding)
Illumination color
Appearance Output Set Set
Round/Flat type
A22-F
SPST-NO A22-F@-10M A22-F@-10A
R (red)
Y (yellow)
G (green)
W (white)
A (blue)
B (black)
SPST-NC A22-F@-01M A22-F@-01A
SPST-NO + SPST-NC A22-F@-11M A22-F@-11A
DPST-NO A22-F@-20M A22-F@-20A
DPST-NC A22-F@-02M A22-F@-02A
Round/Projection type
A22-T
SPST-NO A22-T@-10M A22-T@-10A
SPST-NC A22-T@-01M A22-T@-01A
SPST-NO + SPST-NC A22-T@-11M A22-T@-11A
SPST-NO + SPST-NO A22-T@-20M A22-T@-20A
SPST-NC + SPST-NC A22-T@-02M A22-T@-02A
Round/Full-guard type
A22-G
SPST-NO A22-G@-10M A22-G@-10A
SPST-NC A22-G@-01M A22-G@-01A
SPST-NO + SPST-NC A22-G@-11M A22-G@-11A
SPST-NO + SPST-NO A22-G@-20M A22-G@-20A
SPST-NC + SPST-NC A22-G@-02M A22-G@-02A
Round/Half-guard type
A22-H
SPST-NO A22-H@-10M A22-H@-10A
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
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
Round/Medium-size
Mushroom type
(40-dia head)
A22-M
SPST-NO A22-M@-10M
SPST-NC A22-M@-01M
SPST-NO + SPST-NC A22-M@-11M
SPST-NO + SPST-NO A22-M@-20M
SPST-NC + SPST-NC A22-M@-02M
Operation Momentary opera-
tion (self-resetting)
Alternate operation
(self-holding)
Illumination color
Appearance Output Set Set
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-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
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
Individual models: Refer to pages 7 to 9.
(The Pushbutton, Lamp, and Switch can be ordered
■
Specifications: See pages 13 to 14.
■
Dimensions: Refer to page 16.
■ Accessories and tools: See pages 10 to 12.
A22
4
Ordering Information
Completely Assembled ........Shipped as a set which includes the Pushbutton, Lamp (lighted type only), and Switch.
Lighted (Round Type)
Note: The contact ratings are for standard loads.
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
Round/Projection type
LED lighting
(without Voltage Reduction Unit)
A22L-T
SPST-NO
LED
6 VAC/VDC A22L-T@-6A-10M A22L-T@-6A-10A
R (red)
Y (yellow)
G (green)
W (white)
A (blue)
12 VAC/VDC A22L-T@-12A-10M A22L-T@-12A-10A
24 VAC/VDC A22L-T@-24A-10M A22L-T@-24A-10A
SPST-NC
6 VAC/VDC A22L-T@-6A-01M A22L-T@-6A-01A
12 VAC/VDC A22L-T@-12A-01M A22L-T@-12A-01A
24 VAC/VDC A22L-T@-24A-01M A22L-T@-24A-01A
SPST-NO +
SPST-NC
6 VAC/VDC A22L-T@-6A-11M A22L-T@-6A-11A
12 VAC/VDC A22L-T@-12A-11M A22L-T@-12A-11A
24 VAC/VDC A22L-T@-24A-11M A22L-T@-24A-11A
SPST-NO +
SPST-NO
6 VAC/VDC A22L-T@-6A-20M A22L-T@-6A-20A
12 VAC/VDC A22L-T@-12A-20M A22L-T@-12A-20A
24 VAC/VDC A22L-T@-24A-20M A22L-T@-24A-20A
SPST-NC +
SPST-NC
6 VAC/VDC A22L-T@-6A-02M A22L-T@-6A-02A
12 VAC/VDC A22L-T@-12A-02M A22L-T@-12A-02A
24 VAC/VDC A22L-T@-24A-02M A22L-T@-24A-02A
Round/Projection type
LED voltage-reduction lighting
(with Voltage Reduction Unit)
A22L-T
SPST-NO 100 VAC A22L-T@-T1-10M A22L-T@-T1-10A
200 VAC A22L-T@-T2-10M A22L-T@-T2-10A
SPST-NC 100 VAC A22L-T@-T1-01M A22L-T@-T1-01A
200 VAC A22L-T@-T2-01M A22L-T@-T2-01A
SPST-NO +
SPST-NC
100 VAC A22L-T@-T1-11M A22L-T@-T1-11A
200 VAC A22L-T@-T2-11M A22L-T@-T2-11A
SPST-NO +
SPST-NO
100 VAC A22L-T@-T1-20M A22L-T@-T1-20A
200 VAC A22L-T@-T2-20M A22L-T@-T2-20A
SPST-NC +
SPST-NC
100 VAC A22L-T@-T1-02M A22L-T@-T1-02A
200 VAC A22L-T@-T2-02M A22L-T@-T2-02A
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
SPST-NO
LED
24 VAC/VDC
A22L-H@-24A-10M A22L-H@-24A-10A
R (red)
Y (yellow)
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
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
Individual models: Refer to pages 7 to 9.
(The Pushbutton, Lamp, and Switch can be ordered separately.)
■ Specifications and dimensions: See pages 13 to 16.
■ Accessories and tools: See pages 10 to 12.
A22
5
Ordering Information
Completely Assembled........ Shipped as a set which includes the Pushbutton, Lamp (lighted type only), and Switch.
Lighted (Round Type)
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
Round/Full-guard type
LED lighting
(without Voltage Reduction Unit)
A22L-G
SPST-NO
LED
6 VAC/VDC A22L-G@-6A-10M A22L-G@-6A-10A
R (red)
Y (yellow)
G (green)
W (white)
A (blue)
12 VAC/VDC A22L-G@-12A-10M A22L-G@-12A-10A
24 VAC/VDC A22L-G@-24A-10M A22L-G@-24A-10A
SPST-NC
6 VAC/VDC A22L-G@-6A-01M A22L-G@-6A-01A
12 VAC/VDC A22L-G@-12A-01M A22L-G@-12A-01A
24 VAC/VDC A22L-G@-24A-01M A22L-G@-24A-01A
SPST-NO +
SPST-NC
6 VAC/VDC A22L-G@-6A-11M A22L-G@-6A-11A
12 VAC/VDC A22L-G@-12A-11M A22L-G@-12A-11A
24 VAC/VDC A22L-G@-24A-11M A22L-G@-24A-11A
SPST-NO +
SPST-NO
6 VAC/VDC A22L-G@-6A-20M A22L-G@-6A-20A
12 VAC/VDC A22L-G@-12A-20M A22L-G@-12A-20A
24 VAC/VDC A22L-G@-24A-20M A22L-G@-24A-20A
SPST-NC +
SPST-NC
6 VAC/VDC A22L-G@-6A-02M A22L-G@-6A-02A
12 VAC/VDC A22L-G@-12A-02M A22L-G@-12A-02A
24 VAC/VDC A22L-G@-24A-02M A22L-G@-24A-02A
Round/Full-guard type
LED voltage-reduction lighting
(with Voltage Reduction Unit)
A22L-G
SPST-NO 100 VAC A22L-G@-T1-10M A22L-G@-T1-10A
200 VAC A22L-G@-T2-10M A22L-G@-T2-10A
SPST-NC 100 VAC A22L-G@-T1-01M A22L-G@-T1-01A
200 VAC A22L-G@-T2-01M A22L-G@-T2-01A
SPST-NO +
SPST-NC
100 VAC A22L-G@-T1-11M A22L-G@-T1-11A
200 VAC A22L-G@-T2-11M A22L-G@-T2-11A
SPST-NO +
SPST-NO
100 VAC A22L-G@-T1-20M A22L-G@-T1-20A
200 VAC A22L-G@-T2-20M A22L-G@-T2-20A
SPST-NC +
SPST-NC
100 VAC A22L-G@-T1-02M A22L-G@-T1-02A
200 VAC A22L-G@-T2-02M A22L-G@-T2-02A
Individual models: Refer to pages 7 to 9.
(The Pushbutton, Lamp, and Switch can be ordered separately.)
■ Specifications and dimensions: Refer to pages 13 to 16.
■ Accessories and tools: See pages 10 to 12.
A22
6
Ordering Information
Completely Assembled ........Shipped as a set which includes the Pushbutton, Lamp (lighted type only), and Switch.
Lighted (Square Type)
Note: The contact ratings are for standard loads.
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/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-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
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
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
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
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
Individual models: Refer to pages 7 to 9.
(The Pushbutton, Lamp, and Switch can be ordered separately.)
■ Specifications and dimensions: See pages 13 to 16.
■ Accessories and tools: See pages 10 to 12.
A22
7
Ordering Information
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.
Lighted Models Lighted Models
Non-lighted Models (without Voltage Reduction Unit) (with Voltage Reduction Unit)
Pushbutton Pushbutton Pushbutton
Lamp Lamp
Switch
Switch (without Voltage Reduction Unit)
Switch (with Voltage Reduction Unit)
Incandescent
lamp LED LED
Ordering set combinations: Refer to pages 3 to 6.
■ Specifications and dimensions: See pages 13 to 16.
■ Accessories and tools: See pages 10 to 12.
A22
8
Ordering Information
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
Lighted
Note: Common to incandescent lamps and LED lamps.
Sealing IP65 oil-resistant models
Appearance
Flat type Projection type Full-guard type Half-guard type
Color Model Model Model Model
Red A22-FR A22-TR A22-GR A22-HR
Green A22-FG A22-TG A22-GG A22-HG
Yellow A22-FY A22-TY A22-GY A22-HY
White A22-FW A22-TW A22-GW A22-HW
Blue A22-FA A22-TA A22-GA A22-HA
Black A22-FB A22-TB A22-GB A22-HB
Sealing IP65 oil-resistant models
Appearance
Round/Mushroom type
(30-dia. head)
Round/Mushroom type
(40-dia. head)
Square/Projection type Square/Full-guard type
Color Model Model Model Model
Red A22-SR A22-MR A22-CR A22-DR
Green A22-SG A22-MG A22-CG A22-DG
Yellow A22-SY A22-MY A22-CY A22-DY
White A22-SW A22-MW A22-CW A22-DW
Blue A22-SA A22-MA A22-CA A22-DA
Black A22-SB A22-MB A22-CB A22-DB
Sealing IP65
Appearance
Projection type Full-guard type Half-guard type
Color Model Model Model
Red A22L-TR A22L-GR A22L-HR
Green A22L-TG A22L-GG A22L-HG
Yellow A22L-TY A22L-GY A22L-HY
White A22L-TW A22L-GW A22L-HW
Blue A22L-TA A22L-GA A22L-HA
Sealing IP65
Appearance
Square/Projection type Square/Full-guard type
Color
Model Model
Red A22L-CR A22L-DR
Green A22L-CG A22L-DG
Yellow A22L-CY A22L-DY
White A22L-CW A22L-DW
Blue A22L-CA A22L-DA
Ordering set combinations: Refer to pages 3 to 6.
■ Specifications and dimensions: See pages 13 to 16.
■ Accessories and tools: See pages 10 to 12.
A22
9
Ordering Information
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
*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.
Incandescent Lamp
Switch (Standard Load)
No Voltage Reduction Unit
Voltage Reduction Unit
*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.
Operating voltage 6 V 12 V 24 V
Appearance LED light Model Model Model
AC
and
DC
Red A22-6AR --- ---
Green A22-6AG --- ---
Yellow *2A22-6AY --- ---
Blue A22-6AA --- ---
Red --- A22-12AR A22-24AR
Green --- A22-12AG A22-24AG
Yellow *2 --- A22-12AY A22-24AY
Blue --- A22-12AA A22-24AA
Appearance
Operating
voltage
5 VAC/VDC 12 VAC/VDC 24 VAC/VDC
A22-5 A22-12 A22-24
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
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-02A-T1 A22L-02M-T2 A22L-02A-T2
Ordering set combinations: Refer to pages 3 to 6.
■ Specifications and dimensions: See pages 13 to 16.
■ Accessories and tools: See pages 10 to 12.
A22
10
Ordering Information
Accessories (Order Separately)
Accessories
Item Appearance 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.
Microload A22-10S
SPST-NC Standard load A22-01
Microload A22-01S
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
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
For momentary models A22-3200 Provided as standard. Order Mounting
Latches only when mounting Switch Blocks
or Lamp Sockets that are purchased individ-
ually.
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: nickel-plated zinc
Cannot be used with the M22.
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 Switch-
es.
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
For M22 For round models A22Z-3495
Three-throw Spacer --- A22Z-3003
Used when mounting three Nonlighted
Switches. Cannot be used with Alternate
action type, knob-type Selector, and Key-
type Selector because of the structure.
Mushroom-type Switch provides an A22Z-
3003, three-throw spacer. (See page 28.)
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
Exclusively for A22
A22Z-B101
For those designed exclusively for A22,
DPST-NO or DPST-NC Switches cannot be
used.
A3T-compatible Control Boxes, A22-series
alternate operation models, and DPST-NO,
DPST-NC, and SPST-NO + SPST-NC con-
tacts cannot be used.
Material: Polycarbonate resin
Compatible with A3T
A22Z-B201
One hole, yellow box
(for emergency stop)
Exclusively for A22
A22Z-B101Y
Compatible with A3T
A22Z-B201Y
Two holes
Exclusively for A22
A22Z-B102
Compatible with A3T
A22Z-B202
Three holes
Exclusively for A22
A22Z-B103
Compatible with A3T
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. (See 9 to 11 dia. A22Z-
3500-2 page 27.)
9 to 11 dia. A22Z-3500-2
A22
11
Ordering Information
Item Appearance Classification Model Remarks
25-dia. Ring --- A22Z-R25
Use when mounting to a panel with a 25-dia. hole.
For details, refer to page 18. Since this is not at-
tached to the main body, order separately.
30-dia. Resin Attach-
ment Round A22Z-A30 Use when mounting to a panel with a 30-dia. hole.
For details, refer to page 20.
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.
■ Specifications: See pages 13 to 14. ■ Precautions for correct use: See page 23.
■ Dimensions: See page 16. ■ Accessories and tools: See pages 10 to 12.
A22
12
Ordering Information
Tools
Item Appearance Classification Model Remarks
Snap-in
Legend
Plates
Standard
size
Without text
Black A22Z-3443B
Attached to the Stan-
dard-size Legend Plate
Frame. (See page 28.)
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
STOP A22Z-3443R-J4
Black text on red background
EMERGENCY STOP
A22Z-3443R-J1
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
AUTO A22Z-3443B-J1
MANUAL A22Z-3443B-J2
START A22Z-3443B-J3
RESET A22Z-3443B-J4
ON A22Z-3443B-J5
OFF A22Z-3443B-J6
POWER ON A22Z-3443B-J7
RUN A22Z-3443B-J8
UP A22Z-3443B-J9
DOWN A22Z-3443B-J10
OFF-ON A22Z-3443B-J11
MANUAL-AUTO A22Z-3443B-J12
REVERSE-FORWARD
A22Z-3443B-J13
CLOSE-OPEN A22Z-3443B-J14
MANUAL OFF AUTO
A22Z-3443B-J15
Large size Without text
Black A22Z-3453B Used as an Emergency
Stop Switch Legend
Plate. (See page 28.)
Material: Acrylic
Red A22Z-3453R
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
90-dia. round plate with black letters
on a yellow background A22Z-3476-1
No print (Round) A22Z-3460
After printing on a film, af-
fix to the indicator plate of
the Lighted Pushbutton
Switch. (The back is
coated with adhesive.)
Character Films
Character
print
(Round)
|A22Z-3460-1
❍A22Z-3460-2
START A22Z-3460-3
STOP A22Z-3460-4
No print (Square) A22Z-3480
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 Push-
button Switch.
■ Specifications: See pages 13 to 14. ■ Precautions for correct use: See page 23.
■ Dimensions: See page 16. ■ Accessories and tools: See pages 10 to 12.
A22
13
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 10 for the model numbers.
EN60947-5-1 (Low Voltage Directive)
3 A at 220 VAC
CCC (GB14048.5)
3 A at 240 VAC, 1.5 A at 24 VDC
Ratings
Contacts (Standard Load)
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
Contacts (Microload)
LED Indicators
Incandescent Lamp
Voltage-reduction Lighting
Contacts
(Standard
Load)
Rated
voltage
Rated current (A)
Induc-
tive load
Resis-
tive load
Induc-
tive load
Resis-
tive load
10A
24 VAC 10 10
--- ---
110 VAC 5 10
220 VAC 3 6
380 VAC 2 3
440 VAC 1 2
24 VDC
--- ---
1.5 10
110 VDC 0.5 2
220 VDC 0.2 0.6
380 VDC 0.1 0.2
Rated applicable load 50 mA at 24 VDC (Resistive load)
Minimum applicable load 1 mA at 5 VDC
Rated voltage Rated current Operating voltage
6 VAC/VDC
8 mA
6 VAC/VDC±5%
12 VAC/VDC 12 VAC/VDC±5%
24 VAC/VDC 24 VAC/VDC±5%
Rated voltage Rated current Operating voltage
6 VAC/VDC 200 mA 5 V
14 VAC/VDC 80 mA 12 V
28 VAC/VDC 40 mA 24 V
Rated
voltage
Rated
current Operating voltage Applicable lamp
(BA9S/Base: 13)
110 VAC
8 mA
100 VAC
(95 to 115 V) LED Lamp
(A22-24A@)
220 VAC 200 VAC
(190 to 230 V)
A22
14
Specifications
Characteristics
*1. Malfunction within 1 ms.
*2. With no icing or condensation.
*3. Degree of protection from the front of the panel.
Operating Characteristics (for SPST-NO/SPST-NC)
* Rotation torque for Emergency Stop Pushbutton, Knob-type Selector, and Key-type Selector Switches.
Type Pushbutton Switches Knob-type Selector Switches Key-type
Selector Switch Indicator
Item
Non-lighted models:
A22-F A22-T
A22-G A22-H
A22-S A22-M
A22-C A22-D
Lighted models:
A22L-T A22L-G
A22L-H A22L-C
A22L-D
Non-lighted model:
A22S
Lighted model:
A22W
Non-lighted model:
A22K M22
Allowable
operating
frequency
Mechanical Momentary operation:
60 operations/minute max.
Manual reset: 30 operations/minute max.
Automatic reset: 30 operations/minute max. ---
Electrical 30 operations/minute max. ---
Insulation resistance 100 MΩ min. (at 500 VDC)
Dielectric
strength
Between termi-
nals of same
polarity
2,500VAC, 50/60Hz for 1min
Between each
terminal and
ground
2,500VAC, 50/60Hz for 1min
Vibration
resistance Malfunction *1Malfunction *2: 10 to 55 Hz, 1.5-mm double amplitude
Shock
resistance
Destruction 1,000 m/s21,000 m/s21,000 m/s21,000 m/s21,000 m/s21,000 m/s2
Malfunction *11,000 m/s2 max. 600 m/s2 max. 1,000 m/s2 max. 600 m/s2 max. 1000 m/s2 max. 600 m/s2 max.
Durability
Mechanical Momentary operation:
5,000,000 operations min.
500,000
operations min.
100,000
operations min.
500,000
operations min. ---
Electrical 500,000 operations min. 500,000
operations min.
100,000
operations min.
500,000
operations min. ---
Ambient operating
temperature * 2−20°C to 70°C−20°C to 55°C−20°C to 70°C−20°C to 55°C−20°C to 70°C−20°C to 55°C
Ambient operating
humidity 35% to 85% RH
Ambient storage
temperature *2−40°C to 70°C
Degree of protection *3IP65
(oil-resistant) IP65 IP65
(oil-resistant) IP65 IP65
(oil-resistant) IP65
Electric shock protection
class Class II
PTI
(tracking characteristic) 175
Degree of contamination 3 (IEC947-5-1)
Type Pushbutton Switches Knob-type Selector Key-type Selector Switch
Item
Lighted Nonlighted
Pushbutton
Switches
Manual reset Automatic reset Manual reset Automatic reset
A22-F A22-T
A22-G A22-H
A22-C A22-D
A22-S A22-M
A22L-T A22L-G
A22L-H A22L-C
A22L-D
A22S
A22W A22K
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 *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)
Approx. 90° for two notches
(Approx. 45° for three notches)
Resetting force
(RF) min. --- 0.34 N·m max.*--- 0.34 N·m max.*---
A22
15
Nomenclature
Model Structure
Push b utton
Lo c k Ring
Lamp
• Light Source
LED lamp
Incandescent lamp
Switch
• Contacts
• Lighting Method
Non-lighted:
Red, Green, Yellow, White, Blue, Black
Lighted:
Red, Green Yellow, White, Blue
SPST-NO, SPST-NC, SPST-NO + SPST-NC,
SPST-NO + SPST-NO, SPST-NC + SPST-NC
(Minimum applicable load: 10 mA at 5 VDC)
Non-lighted
Lighted (without Voltage Reduction Unit)
Lighted (with Voltage Reduction Unit)
The above illustration shows a lighted model.
• Available Colors
A22
16
Dimensions (Unit: mm)
Lighted/Non-lighted Pushbutton Switches (The following illustrations are for momentary operation.)
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.
1.8
5.9
0.5
27R
3436
12
30
28
29.7 dia.
54.7 *
0.5 1.8
5.9
29.7 dia.
12 64
34
1.8
5.9
0.5
44
12
29.7 dia.
72.7 *
Flat Type/A22-F For SPST-NO (SPST-NC) Switches For SPST-NO (SPDT-NC)
Alternate Operation Switches
For DPST-NO (DPST-NC)
Monoblock-contact Switches
29.7 dia.
5.9
1.8
0.5
18.5
34
12 54.7 *
Half-guard Type/A22-H/A22L-H
1.8
5.9
0.5
34
19 54.7 *
29.7 dia. 23.9 dia.
Projection Type/A22-T/A22L-T
1.8
5.9
0.5
34
19
29.7 dia.
54.7 *
Full-guard Type/A22-G/A22L-G
1.8
5.9
0.5
34
32
40 dia.
54.7 *
40-dia. Mushroom Type/A22-M
1.8
5.9
0.5
34
54.7 *
18
12
25.6 × 25.6
29.8 × 29.8
Square/Projection type/A22-C/A22L-C
1.8
5.9
0.5
34
18
5.3
54.7 *
8
29.8 × 29.8
Square/Full-guard Type/A22-D/A22L-D
A22
17
Dimensions (Unit: mm)
Terminal Arrangement (Bottom View)
Terminal Connection
Panel Cutouts
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.
Non-lighted
(SPST-NO + SPST-NC)
Lighted
(SPST-NO + SPST-NC)
Non-lighted
(DPST-NO + DPST-NC)
Item Terminal connection
Non-lighted (SPST-NO
+ SPST-NC)
Non-lighted (DPST-NO
+ DPST-NC)
Lighted without Voltage
Reduction Unit
(SPST-NO + SPST-NC)
Lighted with Voltage
Reduction Unit
(SPST-NO + SPST-NC)
16.7
20.7
Switch Blocks
M3.5 screw
22
10
Switch Blocks
Lamp socket
12
20.7
Switch Blocks
32
3
4
1
2
BOTTOM VIEW
11
21
22
12
13
23
24
14
BOTTOM VIEW
1
2X2
X1
X
(−)
(+)
3
4
BOTTOM VIEW
3
4
X1
X2
1
2
X
BOTTOM VIEW
22.3+0.4
025+0.5
0
dia. dia.
A22
18
Dimensions (Unit: mm)
Accessories
0.3
0.1
27
8.3
40.8
30.3
15
20.5
2.8
29.8
28 dia.28 dia.
0.3
1.5
0.3
2.2
22.2±dia.
Legend Plate Frames
Standard Models A22Z-332@27
18
50.8
30.3
15
20.5
2.8
29.8
28 dia.
28 dia.
0.3
1.5
0.3
2.2
0.3
0.1
22.2±dia.
Large
A22Z-333@
10.6 dia.
9.5 dia.
20 ±1.5
BA9S/13
Model indication
Lamp
LED A22-6@, 12@, 24@
28 max.
10±1 dia.
BA9S/13
Incandescent lamp A22-5, 12, 24
22.2 dia.
2.8
20.5
30 dia.
2
1
Lock Ring A22Z-3360
0.5
1.3
22 dia.
24.8 dia.
27 dia.
25-dia. Ring A22Z-R25
23.4 dia. 10.2
Color Cap A22Z-30T@
30 dia.
13
2.5
1
6
Hole Plug (Round) A22Z-3530
1
17.6
19.6 dia.
5.2
17.9 dia.
Caps
A22 (for round models) A22Z-3490
17.6
22.5
111.1
24.1 dia.
21.4 dia.
21.1 dia.
23.7 dia.
M22 (for round models) A22Z-3495
A22
19
Dimensions (Unit: mm)
32 dia.
16.6
22.2 dia.
33 dia.
1R
31.5 dia.
24
22.2 dia.
32.5 dia.
1R
32 dia.
(26 dia.)
22.2 dia.
33 dia.
R1
R2
14.5
23
Sealing Caps
For Flat Models A22Z-3600F For projection models A22Z-3600T For full-guard models A22Z-3600G
28.7 dia.
24±0.2
0
29.7±0.3 dia.
M27 P=1
5
11.5
dia.
5
18.5
28.7 dia.
24±0.2
0
29.7±0.3 dia.
M27 P=1
dia.
Metallic Bezel Rings
For Flat/Projection Models A22Z-3580 For full-guard models
A22Z-3582
26.8 8.2
1
26.8
17.9
1
Snap-in Legend Plates
For Standard Models A22Z-3443@-@For Large Models A22Z-3453@
E
E
E
M
R
N
C
Y
S
T
O
P
G
t1
Black letters
Ye l l o w
22.2 dia.
90 dia.
E
E
E
M
R
N
C
Y
S
T
O
P
G
60 dia.
22.2 dia.
t1
Ye l l o w
Black letters
For Emergency-stop Models A22Z-3476-1 (90 dia.) A22Z-3466-1 (60 dia.)
17±0.2
t 0.22
17±0.2
1.2±0.2
0
1.2±0.2
0
0.1
0.2
19.4±
Character Film
For Round Models A22Z-3460-@
21.5 × 21.5±0.2
0.3
t 0.22
For Square Models A22Z-3480
A22
20
Dimensions (Unit: mm)
8.5 dia.
11 dia.
12.5
17.5
55
8 dia
.
Lamp Extractor A22Z-3901
30 dia.
4.5 20
90 2
19.2 dia.
21.2 dia.
25 dia.
Tightening Wrench A22Z-3905
5 dia.
20.523.4
1
30
Cap Tightening Tool A22Z-3908
6.1
3.8
20.5
2.8
22.2 dia.
34.7 dia.
30-dia. Resin Attachment A22Z-A30
2.5 2.5
510
20
15
50
25±2
0.3
Cap Puller A3PJ-5080
34.5
30.1
5.3
7.3 dia.
13.2 4
5
10
16.5
4
9.7
18
8
Lock Plate A22Z-3380
2.8
78.8
16.5
22.5 dia.
56
20.5
47.2
47
50
0.3 recess
42.2
29.5
9
57.5
25.1
30 × 30
Simple Protective Cover A22Z-3700
10.8
6
2.5
13.7 dia.
12.9 dia.
9
11
6.1
3.4
14.2 dia.
Three-throw Spacer A22Z-3003
A22
21
Dimensions (Unit: mm)
Control Box (Enclosure) A22Z-B10@
20.5±0.1
2.8±0.1
22.1± dia.
0.3
0.1
Four, 4x38 tapping screws
(10x36) 0.6-mm
concave surface (Lead cable hole)
Two, 21 dia.
10
75
68
36
20
41
69.5
(Lead cable hole) Two
mounting holes
16±1 dia.
41
32
39
56
A22Z-B101 (One Hole)
A22Z-B101Y
Cable Port Hole (Top View)
16±1 dia
0.3
0.1
2.8±0.1
(10x36) 0.6-mm
concave surface (Lead cable hole)
(Lead cable hole)
Four, 4x38 tapping screws
Two
mounting
holes
Two, 21 dia.
Two, 22.1±
41
94
101
56
20
41
69.5
36
68
10
137
50
20.5±0.1
A22Z-B102 (Two Holes) Cable Port Hole (Top View)
Four, 4x38 tapping screws
36
68
10
199
5050
20
41
69.5
56
163
156
41
16±1 dia
2.8±0.1
(10x36) 0.6-mm
concave surface
(Lead cable hole)
(Lead cable hole)
Two
mounting
holes
Two, 21 dia.
20.5±0.1
0.3
0.1
Three, 22.1±
A22Z-B103 (Three Holes) Cable Port Hole (Top View)
6.3
4.3
3R
(Panel Mounting Hole)
A22
22
Dimensions (Unit: mm)
Control Box A22Z-B20@
22.1 dia.
Four, M4 Phillips binding screws
(10×36) 0.6-mm
concave surface
Two, 21 dia.
Case (black)
Cover (gray)
Two, 19 dia.
(base)
21 dia.
(both sides)
Two mounting
holes
16
30.5
60
10
68
20.5
2.8
68
36
40
54
A22Z-B201 (One Hole)
A22Z-B201Y
Cable Port Hole (Top View)
Two, 22.1 dia.
Four, M4 Phillips binding screws
(10×36) 0.6-mm
concave surface
Two, 21 dia.
Case (black)
Cover (gray)
Two, 19 dia.
(base)
21 dia.
(both sides)
Two mounting
holes
40
78
98
54
16
30.5
60
36
68
10
134
50
20.5
2.8
A22Z-B202 (Two Holes) Cable Port Hole (Top View)
Four, M4 Phillips binding screws
(10×36) 0.6-mm
concave surface
Two, 21 dia.
Case (black)
Cover (gray)
Two, 19 dia.
(base)
21 dia.
(both sides)
Two
mounting
holes
Three, 22.1 dia.
16
30.5
60
36
68
10
194
50
50
20.5
2.8
40
54
158
138
A22Z-B203 (Three Holes) Cable Port Hole (Top View)
6.3
4.3
3R
(Panel Mounting Hole)
A22
23
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches.
Do not apply a voltage between the incandescent
lamp and the terminal that is greater than the rated
voltage. If the incandescent lamp 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.
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
Crimp Terminals with Insulating Sheath
•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.
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.
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% (λ 60) (conforming to JIS C5003).
The equation, λ 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%.
WARNING
Precautions for Correct Use
8 mm max. 8 mm max.
16.0 mm max. 16.0 mm max.
8 mm max.
20.2 mm max.
8 mm max.
20.2 mm max.
X1
X2
LED
lamp
R:10kΩ (1W)
Bleeder resistor
(Circuit example)
In case of using 24 VAC/VDC, Direct lighting
Microload area Standard
load area
Invalid
area
0.1 1 10 100 1,000
10 mA
1 mA
5
12
24
30
0.16 mA 1.6 mA 100 mA
Current (mA)
0
Voltage (V)
A22
24
Application
Mounting to the Panel
Panel Hole Dimensions
•Panel hole dimensions are given below.
•Recommended panel thickness: 1 to 5 mm.
•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.
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.
For 1. above:
For 2. above:
Note: 1. The above dimensions are the minimum dimensions for when the wires
described under Applicable Wire Size on page 23 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.
22.3+0.4
0
+0.2
0
+0.4
0
22.3
25 dia.
22 dia.
+0.4
025+0.5
0
3.2
24.1
0.8R max.
Not Using a Lock Ring Using a Lock Ring
Switch Blocks A
A22-10, A22-10S
A22-01, A22-01S 45 mm min.
A22-20, A22-20S, A22-02
A22-02S, A22-11, A22-11S 55 mm min.
Type of crimp terminal Switch Blocks B
Bare crimp terminals
A22-10, A22-10S
A22-01, A22-01S 51 mm min.
A22-20, A22-20S, A22-02
A22-02S, A22-11, A22-11S 61 mm min.
Crimp terminals with
insulating sheath
A22-10, A22-10S
A22-01, A22-01S 60 mm min.
A22-20, A22-20S, A22-02
A22-02S, A22-11, A22-11S 70 mm min.
30
A
30
B
Pitches A and B between the centers of the mounting holes are as follows:
A22
25
•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.
•
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.)
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.
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.
Mounting/Replacing the Color Cap
Projection, Fall-guard
•Grip and rotate the Color Cap with your fingers.
Half-guard Indicators
•Put the tips of the Cap Tightening Tool (A22Z-3908) into the Color
Cap slot and turn the Tool.
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.
Indicator
•Mount the Color Cap so that the protrusions inside the Pushbutton
Unit fit into the grooves in the cap.
Hold here Rubber washer
Mounting nut
Panel
Projecting
part
Lock Ring
Panel
Lock Ring
22.3 dia.
0.5 1.3
Lock Ring
Mounting nut
Panel 25 dia.
25 dia.
22.3 dia.
25-dia. Ring (A22Z-R25)
22 dia.
Operation Unit
Operation Unit
Arrow mark
Lever
Screwdriver
Protrusion
inside cap
Color Cap
Protrusion
Grooves
Cap
Color Cap
A22
26
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.
•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.
Emergency Stop Switch
•Insert the protrusion of the Tightening Wrench (A22Z-3905) into the
Cap slot and then turn to remove the 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.
Installing/Replacing on the Switch
•Grip the lamp with your fingers, then rotate the lamp while pressing
it against the Switch.
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.
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.
Plate spring
Flange
Diffusion plate
Character Film
Color Cap
Snap-in Legend Plate
Switch box
Screwdriver
Groove
Side
Make four holes
in diagonal lines.
Cover
Cable port hole
A22
27
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.
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.
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.
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.
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.
Cable diameter Connector
7 to 9 dia. A22Z-3500-1
9 to 11 dia. A22Z-3500-2
Fixing nut Rubber washer
Connector
Tightening cap
Cable
Inside Outside
Box
Mounting
Latch
Lever
Protrusion
Switch Block
Use either of the following screwdrivers.
Flat-head
screwdriver
Phillips
screwdriver
3 to 6 mm
3 to 6 mm
Screwdriver
Screwdriver
Washer
Screw
Protruding portions
on Cap
A22
28
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.
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.
•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.
•The Snap-in Legend Plate is easily removed by pressing the Snap-
in 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.
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.
Protruding portions on Cap
Remove the
cardboard.
Legend Plate Frame
Snap-in Legend Plate
Concave surface
A22
29
Mounting the 30-dia. Resin Attachment
Pushbutton
Rubber washer
(Operation Unit mounting part)
Rubber washer (included)
Mounting panel
Lock Ring
Mounting nut
Attachment
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.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS 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 OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
•
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
•
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
•
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
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 model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog 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 users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2008.12
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2008 All Right Reserved.
