Document Outline
- THUMBWHEEL SWITCH A7CN
- Ordering Information
- Characteristics
- Dimensions
- Hints on Correct Use
- Contacting Omron
Easy-to-Assemble Thumbwheel Switch
Designed Specially for Printed Circuit
Boards
s
The transparent window plate fitted in the
readout section protects dial characters from
dust and prevents wear by incorrect handling
s
Plus (+) and minus () pushbuttons for positive
forward and reverse rotation of each digital
wheel
s
The contact section is of dust-proof construction
s
Switch units can be assembled simply by fitting
the integral hook coupler of each unit into the
mating unit, thus eliminating the need of nuts
and bolts for assembly
Ordering Information
s
SWITCH UNITS
Part Number
Back mounting PC board
Front mounting PC board
Output Code
Light gray case
Black case
Light gray case
Black case
06 (binary code)
A7CN-106-1
A7CN-206
A7CN-206-1
Part Number
For back mounting type switch assembly
For front mounting type switch assembly
Accessory
Light gray
Black
Light gray
Black
End Cap
A7CN-1M-1
A7CN-2M
A7CN-2M-1
Spacer
A7CN-1P
s
s
-1
A7CN-2P
s
s
A7CN-2P
s
s
-1
Note: 1. When placing your order, please specify the model numbers and quantities of required switch units, end caps, and spacers,
respectively. (Note that switch units and accessories are not factory-assembled for shipment.)
2. Switch case, end cap, and spacer are made of polyacetal resin; however, the window plate is made of polycarbonate resin.
3. One of the following alphabetic codes must be filled into the boxed part of the model number to specify a legend to be hot
stamped on the required spacer.
4. End caps come as a set -- left and right.
Thumbwheel Switch
A7CN
s
ACCESSORIES
Code
Legend
Code
Legend
A
Hot stamp not required
H
cm
B
SEC
J
m
C
MIN
K
o
C
D
H
L
PCS
E
g
Q
x 10 SEC
F
kg
T
0
G
mm
A7CN
A7CN
2
Characteristics
Unit: mm (inch)
s
SWITCH UNITS
A7CN-206(-1)
Panel cutout
Dimensions
Note: 1. Unless otherwise specified, a tolerance of
0.4 mm applies to all dimensions.
2. Each model number applies to a single switch unit and does not apply to the switch assembly as shown in the drawings.
Switching capacity
1 mA to 0.1 A 50 VAC/28 VDC (resistive load)
Carry current
1 A (max.)
Contact resistance
200 m
max.
Insulation resistance
10 M
min. (at 250 VDC) between nonconnected terminals
1,000 M
min. (at 250 VDC) between each terminal and noncurrent-carrying part
Dielectric strength
250 VAC, 50/60 Hz for 1 minute between nonconnected terminals
1,000 VAC, 50/60 Hz for 1 minute between each terminal and noncurrent-carrying part
Operating force
450 g max.
Vibration
10 to 55 Hz, 1.5 mm double amplitude
Shock
490 m/s
2
(approx. 50 g)
Ambient temperature
Operating
-10
o
to 65
o
C
Storage
-20
o
to 80
o
C
Humidity
45% to 85% RH max.
Service life
Mechanical
30,000 operations (steps) min.
Electrical
20,000 operations (steps) min.
Weight (per unit)
Approx. 1.5 g
Note:
Data shown are of initial value.
No. of
A
B
D
units (n)
(nx6 + 8)
(nx6 + 6)
1
14 (0.55)
12 (0.47)
12.4 (0.49)
2
20 (0.79)
18 (0.71)
18.4 (0.72)
3
26 (1.02)
24 (0.94)
24.4 (0.96)
4
32 (1.26)
30 (0.18)
30.4 (1.20)
5
38
0.8 (1.50
0.03)
36
0.8 (1.42
0.03)
36.8 (1.45)
6
44
0.8 (1.73
0.03)
42
0.8 (1.65
0.03)
42.8 (1.64)
7
50
0.8 (1.97
0.03)
48
0.8 (1.89
0.03)
48.8 (1.92)
8
56
0.8 (2.20
0.03)
54
0.8 (2.13
0.03)
54.8 (2.16)
9
62
0.8 (2.44
0.03)
60
0.8 (2.36
0.03)
60.8 (2.39)
10
68
0.8 (2.68
0.03)
66
0.8 (2.60
0.03)
66.8 (2.63)
A7CN
A7CN
3
A7CN-106-1
Panel cutout
Note: 1. Unless otherwise specified, a tolerance of
0.4 mm applies to all dimensions.
2. Each model number applies to a single switch unit and does not apply to the switch assembly as shown in the drawings.
No. of
A
B
C
D
units (n)
(nx6 + 6)
(nx6 + 11)
(nx6 + 16)
1
12 (0.47)
17 (0.67)
22 (0.87)
12.4 (0.49)
2
18 (0.71)
23 (0.91)
28 (1.10)
18.4 (0.72)
3
24 (0.94)
29 (1.14)
34 (1.34)
24.4 (0.96)
4
30 (1.18)
35 (1.38)
40 (1.57)
30.4 (1.20)
5
36
0.8 (1.42
0.03)
41 (1.61)
46
0.8 (1.81
0.03)
36.8 (1.45)
6
42
0.8 (1.65
0.03)
47 (1.85)
52
0.8 (2.05
0.03)
42.8 (1.69)
7
48
0.8 (1.89
0.03)
53 (2.09)
58
0.8 (2.28
0.03)
48.8 (1.92)
8
54
0.8 (2.13
0.03)
59 (2.32)
64
0.8 (2.52
0.03)
54.8 (2.16)
9
60
0.8 (2.36
0.03)
65 (2.56)
70
0.8 (2.76
0.03)
60.8 (2.39)
10
66
0.8 (2.60
0.03)
71 (2.80)
76
0.8 (3.00
0.03)
66.8 (2.63)
A7CN
A7CN
4
UNIT: mm (inch)
s
END CAPS
A7CN-2M-1
[left]
[right]
A7CN-1M-1
[left]
[right]
Note:
End caps are attached to each end of the switch assembly and used to secure the switch assembly to a mounting panel.
s
SPACERS
A7CN-2P
s
s
-1
A7CN-1P
s
s
-1
A7CN A7CN
5
s
TERMINALS
A7CN-106-1, A7CN-206
Hints on Correct Use
Refer to HINTS ON CORRECT USE under the Gene ral In formation section.
Omron Europe B.V. EMA-ISD, tel:+31 23 5681390, fax:+31 23 5681397, http://www.eu.omron.com/ema
Cat. No. GC SW5 4/98 Specifications subject to change without notice.
Pr inted in the U.S.A.
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