• Dust penetration prevented with seal for the display
windows.
CSM_A7PS_A7PH_DS_E_2_1
Ordering Information
Switches (Single Switch Units)
Model
Snap-in
(front mounting)
Classification
(See note 1.)
Long-life type
Terminals
Color
Output code number
03 (decimal code)
06 (binary coded decimal)
07 (binary coded decimal, with component-
adding provision) *2
19 (decimal code, with component-adding
provision)
54 (binary coded hexadecimal)
55 (binary coded hexadecimal, with compo-
nent adding provision) *2
Light gray
A7PS-203
A7PS-206
A7PS-207
A7PS-219
A7PS-254
A7PS-255
Solder terminals *1
Black
Light gray
Model
A7PS-203-1
A7PH-203
A7PS-206-1
A7PH-206
A7PS-207-1
A7PS-219-1
A7PS-254-1
A7PS-255-1
A7PH-207
A7PH-219
A7PH-254
---
Black
A7PH-203-1
A7PH-206-1
A7PH-207-1
---
A7PH-254-1
---
A7PS
Snap-in
(front mounting)
A7PH
Note: 1. The classification diagrams show 4 Switch Units combined with End Caps to create 4-digit displays.
2. The model numbers given above are for 1 Switch Unit.
3. Models with stoppers are also available. Add “-S
@@
” after the “203,” “206,” “207,” “219,” “254,” or “255” in the model number and specify the display range in
the
@@
. For example, to specify the range 0 to 6, add “-S06” to the model number (e.g., A7PS-206-S06-1).
4. Models with +, - displays can also be produced. Add “-PM” after the “206” in the model number (e.g., A7PS-206-PM or A7PS-206-PM-1)
*1. Models with PCB terminals are available.
*2. Models with diodes are available. Add “-D” to the model number (e.g., A7PS-207-D or A7PS-207-D-1).
Accessories (Order Separately)
Use accessories, such as End Caps and Spacers, with the Switch
Units.
Accessory
End Caps
Spacer
Connec-
tors
Solder terminals
PCB terminals
Color
Light gray
Black
A7P-M *
A7P-M-1 *
A7P-P@
A7P-P@-1
(See note.)
(See note.)
NRT-C
NRT-CN
NRT-CP
End Caps
End Caps are used on the Switch Units at each end and allow all the
Switch Units to be securely mounted to a panel. They come in pairs,
one for the left and one for the right.
Spacers
•
Spacers are used for creating extra space or gaps between the
Switch Units and have the same dimensions as the Switch Units
themselves.
•
There are also Spacers with engraved characters or symbols that
can be used for indicating units, such as time and length. (Refer to
the following table.) Consult your OMRON representative for
details.
Symbol
A
No des-
Stamp
ignation
H
cm
B
SEC
J
m
C
MIN
K
°C
D
H
L
PCS
E
g
Q
x 10
SEC
F
kg
T
0
G
mm
U
•
Note: The
@
in the Spacer model number stands for a letter in the range A to
U. (Refer to the table in the following explanation about Spacers.)
* The minimum order is for 10 End Caps.
Symbol
Stamp
1
A7PS/A7PH
Specifications
Item
A7PS
A7PH
50 VAC or 5 to 28 VDC
125 VAC or 5 to 28 VDC
Switching capacity (resistive load)
1 mA to 0.1 A
10
µA
to 0.15 A
Continuous carry current
1 A max.
3 A max.
Contact resistance
300 mΩ max.
10 MΩ min. (at 500 VDC)
100 MΩ min. (at 500 VDC)
Insulation Between non-connected terminals
resistance Between terminal and non-current carrying part
1,000 MΩ min. (at 500 VDC)
600 VAC, 50/60 Hz for 1 min
Dielectric Between non-connected terminals
strength
Between terminal and non-current carrying part
1,000 VAC, 50/60 Hz for 1 min
Vibration resistance
10 to 55 Hz, 1.5-mm double amplitude for 2 hours min.
Shock resistance
490 m/s
2
min.
Mechanical
100,000 operations min.
2,000,000 operations min.
Durability
Electrical
50,000 operations min.
1,000,000 operations min.
Ambient temperature
Operating: -10°C to 65°C
Ambient humidity
Operating: 45% to 85%
Max. operating force
6.37 N max.
Model
Dimensions
Switches
A7PS-2@@(-1)
A7PH-2@@(-1)
Solder Terminal
33
7.2
10
±
0.1
A
3
33.5
(Unit: mm)
*
Number of
Switches (n)
1
2
3
4
5
6
7
8
9
10
Size A
(n x 10 + 12)
22
32
42
52
62
72
82
92
102
112
Size B
(n x 10 + 9)
19
29
39
49
59
69
79
89
99
109
22.6
30
3
4.6
4.3
Solder terminal
Panel thickness: 1 to 3
*If the output code is 03,06 or 54, the dimension is 43;
if the output code is 07,19 or 55, the dimension is 55.
Panel Cutout
31
- 0
0.4
4.5
8.6
1
P= 10
±
0.2
B
B
+1
0
Note: 1. The dimensions above include both End
Caps, and will increase 10 mm for each
Spacer inserted.
2. Unless otherwise specified, a tolerance
of
±0.4
mm applies to all dimensions.
The tolerance for multiple connection is
±(number
of units x 0.4) mm.
Accessories (Order Separately)
End Caps for Push-operated Switches
A7P-M(-1) Snap-in Panel Mounting
Left Side
(39)
33
4
3
6
6
3
Right Side
(39)
33
4
33.5
4.4
4
33.5
30
(4.3)
4.5
4.5
4.5
(4.3)
30
Spacers for Push-operated Switches
A7P-P@(-1) Snap-in Panel Mounting
32.7
30
±
0.1
4.5
10
±
0.05
(36.5)
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 1.)
Note: Unless otherwise indicated, dimensional tolerances for dimensions in the models above are
±
0.4 mm.
2
A7PS/A7PH
Connectors
(These devices allow Switches to be quickly removed for maintenance and inspection of connectivity, and quickly re-installed.)
NRT-C Solder Terminals
NRT-CN Solder Terminals
NRT-CP PCB Terminals
48
42
±
0.15
34
30.2
±
0.1
7.8
0
- 0.1
34
30
+ 0.3
0
34
30.2
±
0.1
25.4
±
0.2
7.8
- 0
0.1
Two, 3.3 dia.
7.8
+ 0
- 0.3
9
20.5
9
20.5
UP
9 11
10
6
UP
13.5
1×2
elliptic
hole
3
±
0.15
9
17.5
UP
13.5
13.5
P= 2.54
25.4
±
0.2
3
±
0.15
1
2
3
4
5
6
7
9 11
8 10
P= 2.54
25.4
±
0.2
1
2
3
4
5
6
7
8
9
11
10
0.6
×
0.6
3
±
0.15
P= 2.54
25.4
±
0.2
1
2
3
32
32
32
Note: Unless otherwise indicated, dimensional tolerances for dimensions in the models above are
±
0.4 mm.
Inserting Connectors
Insert Connectors with the “UP” arrow pointing up.
Connector
Output Codes/Terminals
•
Switches with output codes 06 or 07 both
use binary coded decimal but Switches
with output code 07 have a component-
adding provision. Similarly, Switches
with output codes 54 or 55 both use
binary coded hexadecimal but Switches
with output code 55 have a component-
adding provision.
•
How to Read Output Codes
For example, when the dial position is
“3,” the common terminal C on the
Switch is connected to terminals 1 and 2.
When the Switch is inserted into the
Connector, the common terminal C
becomes connector terminal 3, and
terminals 1 and 2 become connector
terminals 5 and 7 respectively.
Output code
number
Terminals
9
8
7
6
P= 2.54
5
C
30
4
3
2
1
0
Output codes
Model
Switch Unit
or Connector
Switch
Unit
Connec-
tor
0
1
2
3
Dial
30
Common ter-
minal number
C
6
0
1
Terminals connected to common
1
2
2
3
3
4
4
5
5
7
6
8
7
9
8
9
03
Twenty
-two,
1.1-dia.
holes
3
03,19
10 11
2.5
●
●
●
●
●
●
●
●
●
●
Forty-four, 1-dia. holes
9
8
7
P=
6
5
C
4
3
2
1
0
4
5
6
7
8
9
2.54 12.7
12.7
19
8.5
3
4.5
2.5
Component-adding provision
Note: The solid dot
●
indicates that the internal switch is ON
(i.e., connected to the common terminal).
Model
Switch Unit
or Connector
Switch
Unit
Connec-
tor
Connec-
tor
0
1
Common ter-
minal number
C
3
5
1.3
*
7
9
11
Terminals con-
nected to common
1
2
4
8
8
4
2
P= 5.08
30
06
Ten,
1.1-dia.
holes
1
C
* Terminal 3 is the
common terminal
for the component-
adding provision.
06
2.5
3
07
●
●
● ●
●
●
● ●
● ● ●
●
●
●
●
Note: The solid dot
●
indicates that
the internal
switch is ON
(i.e., connected
to the common
terminal).
8
4
2
1
4
P= 5.08
30
2
3
Dial
4
5
6
7
8
9
07
Twenty
-three,
1.1-dia.
holes
C
8.5
3
4.5
2.5
Component-adding provision
3
A7PS/A7PH
Output code
number
Terminals
Model
Output codes
Switch Unit
or Connector
Switch
Unit
Common ter-
minal number
C
3
5
1
0
1
2
3
4
5
6
7
Dial
8
9
A
7
9
11
Terminals
connected to
common
1
2
4
8
54
Ten, 1.1-dia.
holes
54
55
Connec-
tor
Connec-
tor
●
●
● ●
●
●
●
● ●
● ● ●
●
●
●
● ●
●
●
●
●
● ●
● ●
● ● ●
● ● ● ●
55
Twenty
-three,
1.1-dia.
holes
Component-adding provision
B
C
D
E
F
Note: 1. The solid dot l 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.
7
1.
2.
3.
4.
5.
6.
A7P-M (End Caps): 1 set
A7PS-203 (Switch Unit): 1 piece
A7PS-206 (Switch Unit): 1 piece
A7P-PA (Spacer): 1 piece
A7PS-207 (Switch Unit): 1 piece
A7PS-219 (Switch Unit): 1 piece
Note: Standard products are not factory-assembled for
shipment. Contact your OMRON representative
for details on ordering factory-assembled sets.
7. NRT-C (Connector): 4 pieces
1
2
3
4
5
6
1
Safety Precautions
Refer to
Precautions for Correct Use
on
in the
Technical Guide for Thumbwheel Switches
.
Precautions for Correct Use
Handling
•
The molded components of the Switch use polyacetal resin and
ABS 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.
•
A7P Thumbwheel Switches are dust-proof, but they are not drip-
proof. Do not use them in areas subject to water or oil exposure.
•
Do not allow solder flux or alcohol to enter the Switch.
•
Do not push the (+) and (-) operating push-buttons at the same
time.
4
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.
Industrial Automation Company
http://www.ia.omron.com/
OMRON Corporation
(c)Copyright OMRON Corporation 2008 All Right Reserved.
