A7CN-206

A7CN/A7CN-L
4
Accessories (Order Separately)
Note: Unless otherwise indicated, dimensional tolerances for dimensions in the models above are ±0.4mm.
Output Codes
06 (Binary Code)
Note: The solid dot indicates that the internal switch is ON (i.e., connected to the common terminal).
Ordering Procedure
Place orders as shown in the example below, specifying the model
and number. Standard products are not factory-assembled for
shipment. Contact your OMRON representative for details on
ordering factory-assembled sets.
1. Switch Unit (snap-in mounting, black)
A7CN-206-1: 4 pieces
2. Spacer (snap-in mounting, no designation, black)
A7CN-2PA-1: 1 piece
3. End Caps (snap-in mounting, black)
A7CN-2M-1: 1 pair
End Caps for Push-operated Switches
A7CN-1M-1 Screw Mounting
Left Side Right Side
16
±0.2
3
±0.1
16 3
2
2
13.6
15.7
2
13.6
15.7
18
16
±0.2
16
18
8
3
±0.1
3
2.2
2
8
44
16
3
±0.1
2.7
2
44
3
±0.1
2.7
2.2
2.2
15.5
18
16
18
13.4
15.5
13.4
End Caps for Push-operated Switches
A7CN-2M(-1) Snap-in Mounting
Left Side Right Side
Spacers for Push-operated Switches
A7CN-1P@-1
Screw Panel Mounting Model
Note: The @ in the Spacer model number stands for a letter in the range A to U.
(Refer to the table under the explanation about Spacers on page 3.)
Spacers for Push-operated Switches
A7CN-2P@(-1)
Snap-in Mounting Model
Note: The @ in the Spacer model number stands for a letter in the range A to U.
(Refer to the table under the explanation about Spacers on page 3.)
9
6
±0.1
18
13.4
2.25
16
±0.2
Dial
Terminals connected to common
1 2 4 8
0
1
2
3 ●●
4
5 ●●
6 ●●
7 ●●●
8
9 ●●
3 2 311
5
A7CN/A7CN-L
Safety Precautions
Refer to Precautions for Correct Use on in the Technical Guide for Thumbwheel Switches.
Environment
Do not use where gases are generated (ammonia, chlorine, sulfur
dioxide).
Although Switches are of nearly dust-proof construction, they are
not drip-proof, therefore do not use in areas subject to water or oil
exposure and do not operate with wet or oily hands.
Provide additional dust-proofing measures, such as using a dust-
proof cover, when using in sand-exposed areas.
Handling
The A7CN cannot be connected to the A7C.
The molded components of the Switch use polyacetal resin and
polycarbonate resin. It is recommended that alcohol is used to wipe
off dirt and smudges from the molded components. Take care to
prevent the alcohol from getting inside.
Do not use thinner or other solutions which might damage the resin.
When changing settings, do not touch the operating buttons if your
fingers are wet or there is oil or any other foreign substance on your
fingers.
Do not drop the individual Switches. Doing so may damage the
resin catch (for connecting) on the side of the Switch.
When separating Switches, use a screwdriver as shown in the
figure below; disconnect them by releasing the top and bottom
hooks. Be careful not to bend the hooks.
When connecting Switches, fit the mating parts together.
Do not push the (+) and (-) operating push-buttons at the same
time.
Models with PCB Terminals
Do not use excessive force in handling the Switches. In particular,
take care to avoid dropping them because the terminals might bend
or break.
Screw-mounting Models
Tighten mounting screws to a torque between 0.2 to 0.24 N·m, using
M2.6 screws. Use plain washers or spring washers together with the
screws.
Setting Numbers
Locking Type
Set with the setting button by raising it.
Return the button to its original position
after setting. It is then locked to prevent
rotation, and the set numbers will not
change accidentally.
Soldering
Note the following points when soldering
printed circuit boards:
The terminal insertion holes on the PCB must be at least 1 mm in
diameter.
Automatic Soldering
Do not use dip cleaning. Doing so may result in flux penetration of
the Switch interior, causing contact and rotational defects. Clean
the flux as shown in Figure 1, tilting the Switch 80° or less and using
a brush to apply the solvent only to the back of the board. It may
also be cleaned by dipping only the back of the board into the
solvent and then using a brush to clean.
Dip Soldering
When applying flux solvent, the dipping time is a maximum of 2
seconds. As shown in Figure 2, avoid flooding the top surface of the
printed circuit board with flux. Using a brush to apply flux further
reduces the danger of flux penetration. When cleaning flux with a
brush, tilt the Switch 80° or less, as shown in Figure 1, in order to
prevent flux from flowing onto the switch mounting surface. Clean
flux as described above under Automatic Soldering.
Using a Soldering Iron
Use a 30-W soldering iron at a temperature of 350°C for a
maximum of 3 seconds, and flush as described above.
Do not apply force to the terminals during soldering and for 3
minutes after soldering is completed. Doing so may result in
conduction or operation failure.
Ensure that soldering flux and alcohol do not penetrate into the
Switch interior
Precautions for Correct Use
Do not
push here
Top surface
of board
80° or less
Back surface
of board
Wipe away flux
with a brush.
Figure 1 Figure 2
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 Omrons 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 Buyers 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.
2014.8
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 2014 All Right Reserved.

A7CN-206

Mfr. #:
Manufacturer:
Omron Electronics
Description:
Thumbwheel Switches & Pushwheel Switches USE ONLY A7CN MATING PARTS
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union