CSM_A22K_DS_E_2_1
1
Key-type Selector Switch (Cylindrical 22/25-dia.)
A22K
Install in 22-dia. or 25-dia. Panel Cutout
Lever for easily mounting and removing the Socket 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
Refer to Safety Precautions for All Pushbutton Switches
and Safety Precautions for the A22.
Model Number Structure
Model Number Legend......Shipped as a set which includes the Selector and Switch.
For information on combinations, refer to Ordering Information.
(1) (2)
A 22 K - 2ML - 11
(1) Number of Notches/Reset Method
Code Notches Reset
method
Key release
position
2ML
2 notches Manual Left
2M Left and right
2AL Automatic Left
3ML
3 notches Manual
Left
3M Left and right
3MC Center
3AC Automatic Center
(2) Contacts
* For models with 2 notches
Contact Rating is standard load.
For microloads, refer to Accessories section for A22.
For special keys, consult your OMRON representative.
Code Description
10 SPST-NO *
01 SPST-NC *
11 SPST-NO + SPST-NC
20 SPST-NO + SPST-NO
02 SPST-NC + SPST-NC
Individual models: Refer to pages 2 to 3.
(The Selector and Switch can be ordered separately.)
Specifications: Refer to the A22.
Dimensions: Refer to page
5
.
Accessories and tools: Refer to the A22.
A22K
2
Ordering Information
Completely Assembled .... Shipped as a set which includes the Selector and Switch.
Key-type Selector Switch
Note: 1. Two Keys are provided.
2. The contact ratings are for standard loads.
Subassembled.......... The Selector, 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.
Appearance Number of
notches
Reset
method Output
Key release
position
Model
Key-type Selector Switch
A22K
2 notches
Manual
SPST-NO A22K-2ML-10
A22K-2M-10
SPST-NC A22K-2ML-01
A22K-2M-01
SPST-NO + SPST-NC A22K-2ML-11
A22K-2M-11
SPST-NO + SPST-NO A22K-2ML-20
A22K-2M-20
SPST-NC + SPST-NC A22K-2ML-02
A22K-2M-02
Automatic
SPST-NO A22K-2AL-10
SPST-NC A22K-2AL-01
SPST-NO + SPST-NC A22K-2AL-11
SPST-NO + SPST-NO A22K-2AL-20
SPST-NC + SPST-NC A22K-2AL-02
3 notches
Manual
SPST-NO + SPST-NC
A22K-3ML-11
A22K-3M-11
A22K-3MC-11
SPST-NO + SPST-NO
A22K-3ML-20
A22K-3M-20
A22K-3MC-20
SPST-NC + SPST-NC
A22K-3ML-02
A22K-3M-02
A22K-3MC-02
Automatic
SPST-NO + SPST-NC A22K-3AC-11
SPST-NO + SPST-NO A22K-3AC-20
SPST-NC + SPST-NC A22K-3AC-02
Selector Switch
Two Keys are provided.
Ordering set combinations: Refer to this page.
Specifications: Refer to the A22.
Dimensions: Refer to page
5
.
Accessories and tools: Refer to the A22.
A22K
3
Ordering Information
Subassembled .......... The Selector, 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.
Selector
Oil-resistant IP65 (Color: Only Black is available)
Note: Two keys are provided.
Switch (Standard Load)
Accessories
Note: Two keys are provided.
Appearance Number of
notches Reset method Key release
position Model
2 notches Manual
A22K-2ML
A22K-2M
Automatic
A22K-2AL
3 notches
Manual
A22K-3ML
A22K-3M
A22K-3MC
Automatic
A22K-3AC
Automatic
(left)
A22K-3AMR
Automatic
(right)
A22K-3MAL
Appearance Classification 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
Appearance Model
A22K-K
Ordering set combinations: Refer to page 2.
Specifications: Refer to the A22.
Dimensions: Refer to page
5
.
Accessories and tools: Refer to the A22.
A22K
4
Nomenclature
Model Structure
Contacts
2-notch Type
3-notch Type
Operation Angle
Knob position SPST-NO SPST-NC SPST-NO + SPST-NC SPST-NO + SPST-NO SPST-NC + SPST-NC
Knob position SPST-NO + SPST-NC SPST-NO + SPST-NO SPST-NC + SPST-NC
Lock Fitting
* Two Keys are provided.
Number of Notches
· 2 notches/3 notches
Key Release Position
· 2 notches
· 3 notches
Selector
Contacts
SPST-NO, SPST-NC, SPST-NO + SPST-NC,
SPST-NO + SPST-NO, SPST-NC + SPST-NC
Switch
(75°)
90°
FP
FP
2 notches 3 notches
45°
(45°)
45°
(45°)
Note: The angles in parentheses are for
automatic-reset models.
FP: Free position
A22K
5
Dimensions (Unit: mm)
Key-type Selector Switch
Terminal Arrangement (Bottom View)
Terminal Connection
Note: The above terminal connection diagrams are examples for SPST-NO +
SPST-NC.
Accessories
Refer to the relevant information in the corresponding section for the
A22.
Panel Cutouts
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.
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches and Safety Precautions for the A22.
30 dia. 34
25.5 23.7 54.7
1.8
5.9
0.5
12
Key-type Selector Switch A22K
Non-lighted
Type Terminal connection
Non-lighted
16.7
Switch Blocks
20.7
M3.5 screw
3
Bottom view
4
1
2
22.3+0.4
025 dia.dia. +0.5
0
Lock fitting is provided as a standard item.
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.