Thumbwheel Switch
Easy-to-Assemble Thumbwheel Switch
Designed Specially for Printed Circuit
Boards
The transparent window plate fitted in the
readout section protects dial characters from
dust and prevents wear by incorrect handling
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Plus (+) and minus (–) pushbuttons for positive
forward and reverse rotation of each digital
wheel
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The contact section is of dust-proof construction
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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
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A7CN
Ordering Information
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SWITCH UNITS
Part Number
Back mounting PC board
Light gray case
Black case
–
A7CN-106-1
Front mounting PC board
Light gray case
Black case
A7CN-206
A7CN-206-1
Output Code
06 (binary code)
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ACCESSORIES
Part Number
For back mounting type switch assembly
Accessory
End Cap
Spacer
Light gray
–
–
Black
A7CN-1M-1
A7CN-1Ps -1
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For front mounting type switch assembly
Light gray
A7CN-2M
A7CN-2Ps
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Black
A7CN-2M-1
A7CN-2Ps -1
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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.
Code
A
B
C
D
E
F
G
Legend
Hot stamp not required
SEC
MIN
H
g
kg
mm
Code
H
J
K
L
Q
T
Legend
cm
m
o
C
PCS
x 10 SEC
0
A7CN
A7CN
Characteristics
Switching capacity
Carry current
Contact resistance
Insulation resistance
Dielectric strength
Operating force
Vibration
Shock
Ambient temperature
Humidity
Service life
Weight (per unit)
Note: Data shown are of initial value.
1 mA to 0.1 A 50 VAC/28 VDC (resistive load)
1 A (max.)
200 mΩ max.
10 MΩ min. (at 250 VDC) between nonconnected terminals
1,000 MΩ min. (at 250 VDC) between each terminal and noncurrent-carrying part
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
450 g max.
10 to 55 Hz, 1.5 mm double amplitude
490 m/s
2
(approx. 50 g)
-10
o
to 65
o
C
-20
o
to 80
o
C
45% to 85% RH max.
30,000 operations (steps) min.
20,000 operations (steps) min.
Approx. 1.5 g
Operating
Storage
Mechanical
Electrical
Dimensions
Unit: mm (inch)
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SWITCH UNITS
A7CN-206(-1)
Panel cutout
No. of
units (n)
1
2
3
4
5
6
7
8
9
10
A
(nx6 + 8)
14 (0.55)
20 (0.79)
26 (1.02)
32 (1.26)
38
±
0.8 (1.50±0.03)
44
±
0.8 (1.73±0.03)
50
±
0.8 (1.97±0.03)
56
±
0.8 (2.20±0.03)
62
±
0.8 (2.44±0.03)
68
±
0.8 (2.68±0.03)
B
(nx6 + 6)
12 (0.47)
18 (0.71)
24 (0.94)
30 (0.18)
36
±
0.8 (1.42±0.03)
42
±
0.8 (1.65±0.03)
48
±
0.8 (1.89±0.03)
54
±
0.8 (2.13±0.03)
60
±
0.8 (2.36±0.03)
66
±
0.8 (2.60±0.03)
D
12.4 (0.49)
18.4 (0.72)
24.4 (0.96)
30.4 (1.20)
36.8 (1.45)
42.8 (1.64)
48.8 (1.92)
54.8 (2.16)
60.8 (2.39)
66.8 (2.63)
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.
2
A7CN
A7CN-106-1
A7CN
No. of
units (n)
1
Panel cutout
2
3
4
5
6
7
8
9
10
A
(nx6 + 6)
12 (0.47)
18 (0.71)
24 (0.94)
30 (1.18)
36
±
0.8 (1.42±0.03)
42
±
0.8 (1.65±0.03)
48
±
0.8 (1.89±0.03)
54
±
0.8 (2.13±0.03)
60
±
0.8 (2.36±0.03)
66
±
0.8 (2.60±0.03)
B
(nx6 + 11)
17 (0.67)
23 (0.91)
29 (1.14)
35 (1.38)
41 (1.61)
47 (1.85)
53 (2.09)
59 (2.32)
65 (2.56)
71 (2.80)
C
(nx6 + 16)
22 (0.87)
28 (1.10)
34 (1.34)
40 (1.57)
46
±
0.8 (1.81±0.03)
52
±
0.8 (2.05±0.03)
58
±
0.8 (2.28±0.03)
64
±
0.8 (2.52±0.03)
70
±
0.8 (2.76±0.03)
76
±
0.8 (3.00±0.03)
D
12.4 (0.49)
18.4 (0.72)
24.4 (0.96)
30.4 (1.20)
36.8 (1.45)
42.8 (1.69)
48.8 (1.92)
54.8 (2.16)
60.8 (2.39)
66.8 (2.63)
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.
3
A7CN
UNIT: mm (inch)
A7CN
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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.
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SPACERS
A7CN-2Ps -1
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A7CN-1Ps -1
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4
A7CN
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TERMINALS
A7CN-106-1, A7CN-206
A7CN
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.
Printed in the U.S.A.
5
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