Complete Assemblies
24
Knob-Type Selector Switch A165S/W
Mounting Aperture of 16 mm
H2-piece construction requires no tools
HOil-resistant IP65 models
HShort mounting depth, less than
28.5 mm below panel
HWide range of switching capacity from
general to microload
HIlluminated and non-illuminated models
H2 and 3-position models
HMaintained and spring return reset
HUL and CSA approved, VDE pending
HConforms to EN60947-5-1, IEC947-5-1
c
Orderin
g
Information
JCONSTRUCTION
Flange Shape Available Colors
•For LED
Red, green, yellow
Protective Case and Terminal Type
•Protective Structure
Oil-resistant IP65
•Terminal Type
Solder terminals
(tab terminals #110)
Switch Unit Specifications
•General-purpose Loads
125 VAC: 5 A
250 VAC: 3 A
30 VDC 3 A
Minimum applicable load: 1 mA at 5 VDC
Number of Positions and Reset
Method
•2 Positions
Maintained
Spring return
•3 Positions
Maintained
Spring return
Lamp
•LED
A165S/W A165S/W
25
JPART NUMBER LEGEND A165 SELECTOR SWITCH (COMPLETE ASSEMBLY)
1 IIluminated/Non-IIluminated
Code Description
S Non-IIluminated
W IIluminated
3 Number of Positions/Reset Method
Code Description
2M 2 Positions/Maintained
2A 2 Positions/Spring return
3M 3 Positions/Maintained
3A 3 Positions/Spring return
4 Operator Color
Code Description
None Non-IIluminated (black)
RRed
G Green
Y Yellow
Code Description
J Rectangular
A Square
T Round
2 Flange Shape
A165j-jjj-j-j
123456
Code Description
5D 5 VDC +/- 5%
12D 12 VDC +/- 5%
24D 24 VDC +/- 5%
TRANSFORMER
Code Description
None Without Transformer
T1 110 VAC
T2 220 VAC
5 Operating Voltage (Rated Voltage)
LED
6 Contacts
Code Description
1 SPDT
2DPDT
(Actual color of yellow operators more
closely resemble amber than true yellow.)
A165S/W A165S/W
26
JPART NUMBERS: A165S ASSEMBLED NON-ILLUMINATED KNOB-TYPE SELECTOR SWITCH
(COMPLETE ASSEMBLY)
Shape Number of positions Contact Reset method Part number
R
o
u
n
d
2 positions SPDT Maintained A165S-T2M-1
R
o
u
n
d
2
p
o
s
i
t
i
o
n
s
S
P
D
T
Spring return (right) A165S-T2A-1
DPDT Maintained A165S-T2M-2
D
P
D
T
Spring return (right) A165S-T2A-2
3 positions Maintained A165S-T3M-2
3
p
o
s
i
t
i
o
n
s
Spring return (both) A165S-T3A-2
S
q
uare 2 positions SPDT Maintained A165S-A2M-1
S
q
u
a
r
e
2
p
o
s
i
t
i
o
n
s
S
P
D
T
Spring return (right) A165S-A2A-1
DPDT Maintained A165S-A2M-2
D
P
D
T
Spring return (right) A165S-A2A-2
3 positions Maintained A165S-A3M-2
3
p
o
s
i
t
i
o
n
s
Spring return (both) A165S-A3A-2
R
e
c
t
a
n
g
u
l
a
r2 positions SPDT Maintained A165S-J2M-1
R
e
c
t
a
n
g
u
l
a
r
2
p
o
s
i
t
i
o
n
s
S
P
D
T
Spring return (right) A165S-J2A-1
DPDT Maintained A165S-J2M-2
D
P
D
T
Spring return (right) A165S-J2A-2
3 positions Maintained A165S-J3M-2
3
p
o
s
i
t
i
o
n
s
Spring return (both) A165S-J3A-2
A165S/W A165S/W
27
JA165W ILLUMINATED (2 POSITION) KNOB-TYPE SELECTOR SWITCH (COMPLETE
ASSEMBLY)
Description Part number
Appearance Type Rated voltage Contacts Maintained Spring return from right
Round Full voltage 5VDC SPDT A165W-T2Mj
jj
j-5D -1 A165W-T2Aj
jj
j-5D -1
R
o
u
n
d
F
u
l
l
v
o
l
t
a
g
e
LED (DC) 12 VDC
S
P
D
T
A165W-T2Mj
jj
j-12D-1 A165W-T2Aj
jj
j-12D-1
24 VDC A165W-T2Mj
jj
j-24D-1 A165W-T2Aj
jj
j-24D-1
Transformer 24 V 110 VAC A165W-T2Mj
jj
j-T1 -1 A165W-T2Aj
jj
j-T1 -1
T
r
a
n
s
f
o
r
m
e
r
2
4
V
Secondary 220 VAC A165W-T2Mj
jj
j-T2 -1 A165W-T2Aj
jj
j-T2 -1
Full voltage 5VDC DPDT A165W-T2Mj
jj
j-5D -2 A165W-T2Aj
jj
j-5D -2
F
u
l
l
v
o
l
t
a
g
e
LED (DC) 12 VDC
D
P
D
T
A165W-T2Mj
jj
j-12D-2 A165W-T2Aj
jj
j-12D-2
24 VDC A165W-T2Mj
jj
j-24D-2 A165W-T2Aj
jj
j-24D-2
Transformer 24 V 110 VAC A165W-T2Mj
jj
j-T1 -2 A165W-T2Aj
jj
j-T1 -2
T
r
a
n
s
f
o
r
m
e
r
2
4
V
Secondary 220 VAC A165W-T2Mj
jj
j-T2 -2 A165W-T2Aj
jj
j-T2 -2
Square Full voltage 5VDC SPDT A165W-A2Mj
jj
j-5D -1 A165W-A2Aj
jj
j-5D -1
S
q
u
a
r
e
F
u
l
l
v
o
l
t
a
g
e
LED (DC) 12 VDC
S
P
D
T
A165W-A2Mj
jj
j-12D-1 A165W-A2Aj
jj
j-12D-1
24 VDC A165W-A2Mj
jj
j-24D-1 A165W-A2Aj
jj
j-24D-1
Transformer 24 V 110 VAC A165W-A2Mj
jj
j-T1 -1 A165W-A2Aj
jj
j-T1 -1
T
r
a
n
s
f
o
r
m
e
r
2
4
V
Secondary 220 VAC A165W-A2Mj
jj
j-T2 -1 A165W-A2Aj
jj
j-T2 -1
Full voltage 5VDC DPDT A165W-A2Mj
jj
j-5D -2 A165W-A2Aj
jj
j-5D -2
F
u
l
l
v
o
l
t
a
g
e
LED (DC) 12 VDC
D
P
D
T
A165W-A2Mj
jj
j-12D-2 A165W-A2Aj
jj
j-12D-2
24 VDC A165W-A2Mj
jj
j-24D-2 A165W-A2Aj
jj
j-24D-2
Transformer 24 V 110 VAC A165W-A2Mj
jj
j-T1 -2 A165W-A2Aj
jj
j-T1 -2
T
r
a
n
s
f
o
r
m
e
r
2
4
V
Secondary 220 VAC A165W-A2Mj
jj
j-T2 -2 A165W-A2Aj
jj
j-T2 -2
Rectangular Full voltage 5VDC SPDT A165W-J2Mj
jj
j-5D -1 A165W-J2Aj
jj
j-5D -1
R
e
c
t
a
n
g
u
l
a
r
F
u
l
l
v
o
l
t
a
g
e
LED (DC) 12 VDC
S
P
D
T
A165W-J2Mj
jj
j-12D-1 A165W-J2Aj
jj
j-12D-1
24 VDC A165W-J2Mj
jj
j-24D-1 A165W-J2Aj
jj
j-24D-1
Transformer 24 V 110 VAC A165W-J2Mj
jj
j-T1 -1 A165W-J2Aj
jj
j-T1 -1
T
r
a
n
s
f
o
r
m
e
r
2
4
V
Secondary 220 VAC A165W-J2Mj
jj
j-T2 -1 A165W-J2Aj
jj
j-T2 -1
Full voltage 5VDC DPDT A165W-J2Mj
jj
j-5D -2 A165W-J2Aj
jj
j-5D -2
F
u
l
l
v
o
l
t
a
g
e
LED (DC) 12 VDC
D
P
D
T
A165W-J2Mj
jj
j-12D-2 A165W-J2Aj
jj
j-12D-2
24 VDC A165W-J2Mj
jj
j-24D-2 A165W-J2Aj
jj
j-24D-2
Transformer 24 V 110 VAC A165W-J2Mj
jj
j-T1 -2 A165W-J2Aj
jj
j-T1 -2
T
r
a
n
s
f
o
r
m
e
r
2
4
V
Secondary 220 VAC A165W-J2Mj
jj
j-T2 -2 A165W-J2Aj
jj
j-T2 -2
Note: To complete the part number, replace the jsymbol with the appropriate color code from the Operator Color Code table below.
Operator Color Codes
(Actual color of yellow pushbuttons more closely resembles amber than true yellow).
Code Color
RRed
YYellow
GGreen
A165S/W A165S/W
28
JA165W ILLUMINATED (3 POSITION) KNOB-TYPE SELECTOR SWITCH (COMPLETE
ASSEMBLY)
Description Part number
Appearance Type Rated voltage Contacts Maintained Spring return from both
Round Full voltage
L
E
D
(
D
C
)
5VDC DPDT A165W-T3Mj
jj
j-5D -2 A165W-T3Aj
jj
j-5D -2
g
LED (DC) 12 VDC A165W-T3Mj
jj
j-12D-2 A165W-T3Aj
jj
j-12D-2
24 VDC A165W-T3Mj
jj
j-24D-2 A165W-T3Aj
jj
j-24D-2
Transformer 24 V
S
d
110 VAC A165W-T3Mj
jj
j-T1 -2 A165W-T3Aj
jj
j-T1 -2
Secondary 220 VAC A165W-T3Mj
jj
j-T2 -2 A165W-T3Aj
jj
j-T2 -2
Square Full voltage
L
E
D
(
D
C
)
5VDC DPDT A165W-A3Mj
jj
j-5D -2 A165W-A3Aj
jj
j-5D -2
LED (DC) 12 VDC A165W-A3Mj
jj
j-12D-2 A165W-A3Aj
jj
j-12D-2
24 VDC A165W-A3Mj
jj
j-24D-2 A165W-A3Aj
jj
j-24D-2
Transformer 24 V
S
d
110 VAC A165W-A3Mj
jj
j-T1 -2 A165W-A3Aj
jj
j-T1 -2
Secondary 220 VAC A165W-A3Mj
jj
j-T2 -2 A165W-A3Aj
jj
j-T2 -2
Rectangular Full voltage
L
E
D
(
D
C
)
5VDC DPDT A165W-J3Mj
jj
j-5D -2 A165W-J3Aj
jj
j-5D -2
LED (DC) 12 VDC A165W-J3Mj
jj
j-12D-2 A165W-J3Aj
jj
j-12D-2
24 VDC A165W-J3Mj
jj
j-24D-2 A165W-J3Aj
jj
j-24D-2
Transformer 24 V
S
d
110 VAC A165W-J3Mj
jj
j-T1 -2 A165W-J3Aj
jj
j-T1 -2
Secondary 220 VAC A165W-J3Mj
jj
j-T2 -2 A165W-J3Aj
jj
j-T2 -2
Note: To complete the part number, replace the jsymbol with the appropriate color code from the Operator Color Code table below.
Operator Color Codes
(Actual color of yellow pushbuttons more closely resembles amber than true yellow).
Code Color
RRed
YYellow
GGreen
A165S/W A165S/W
29
Accessories (Order Separately)
JPANEL PLUGS
Shape Classification Remarks Part number
Rectangular Used for covering the panel A3BJ-3003
Square
U
s
e
d
f
o
r
c
o
v
e
r
i
n
g
t
h
e
p
a
n
e
l
cutouts for future panel expansion. A3BA-3003
Round A3BT-3003
JTOOLS
Name Shape Applicable types Remarks Part
b
N
a
m
e
S
h
a
p
e
Pushbutton
Switch
Knob-type
Selector
Switch
Key-type
Selector
Switch
Emer-
gency
Stop
Switch
Pilot Light
R
e
m
a
r
k
s
P
a
r
t
number
Screw
fitting
Yes Yes Yes Yes Yes Convenient for
ganged installation.
Tighten to a torque of
0.39 N •m
(5 kgf •cm) min.
A3B-3004
Extractor Yes Yes Yes Yes Yes Convenient for
extracting the Switch
Unit and Lamps.
A16Z-5080
Specifications
JAPPROVED STANDARDS
UL, cUL (File No. E41515)
5 A at 125 VAC, 3 A at 250 VAC (general use)
3 A at 30 VDC (resistive)
EN60947-5-1 (Low Voltage Directive)
JRATINGS
AC resistive load (AC15) DC resistive load (DC13)
3 A, 250 VAC
5 A, 125 VAC
3A,30VDC
Minimum applicable load: 1 mA at 5 VDC
Rated values are obtained from tests conducted under the following conditions according to JIS C4505 and C4520.
1. Load: Resistive load
2. Mounting conditions: No vibration and no shock
3. Temperature: 20°±2°C (68F°±3.6F°)
4. Operating frequency: 20 times/min
JCONTACT
Name Contact
SPDT
JLED
Rated voltage Rated current Operating voltage Internal limiting resistor
5VDC 30 mA 5VDC±5% 33 Ω
12 VDC 15 mA 12 VDC±5% 270 Ω
24 VDC 10 mA 24 VDC±5% 1600 Ω
A165S/W A165S/W
30
JCHARACTERISTICS
Item Knob-type Selector Switch
Allowable operating
f
r
e
q
u
e
n
c
y
Mechanical 20 operations/min max.
frequency
(See Note 1.) Electrical 10 operations/min max.
Insulation resistance 100 MΩmin. (at 500 VDC)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,000 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between each
terminal and ground
1,000 VAC, 50/60 Hz for 1 min between lamp terminals (See note 2)
Vibration resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Shock resistance Mechanical 500 m/s2(50G)
S
h
o
c
k
r
e
s
i
s
t
a
n
c
e
Malfunction 150 m/s2(15G) max. (malfunction within 1 ms)
Life expectancy Mechanical 250,000 operations min.
L
i
f
e
e
x
p
e
c
t
a
n
c
y
Electrical 100,000 operations min.
Ambient temperature Operating: -- 10°Cto55°C(14°F to 131°F) with no icing or condensation
Storage: --25°Cto65°C (-13°F to 149°F) with no icing or condensation
Ambient humidity Operating: 35% to 85%
Electric shock protection class Class II
Degree of contamination 3 (IEC947-5-1)
Weight Approx. 13 g (0.46 oz) in the case of a Illuminated DPDT switch
Note: 1. Set and reset constitute one operation.
2. With LED and incandescent lamp not mounted.
JOPERATING CHARACTERISTICS
Features Knob-type Selector Switch
F
e
a
t
u
r
e
s
2 Positions 3 Positions
Operating force (OF) max. 0.1 N Sm (1,000 gf Scm)
Set position (SP) 90±5°45±10°
JOPERATION ANGLE
Note: The angle used for automatic
reset is shown in parentheses.
Two Positions Three Positions
A165S/W A165S/W
31
JCONTACTS
SW1 SW2
Position Contact
P
o
s
i
t
i
o
n
SPDT DPDT
Position SW Position SW1 SW2
2 Positions
3 Positions —
A165S/W A165S/W
32
Dimensions
Unit: mm (inch)
JKNOB-TYPE SELECTOR SWITCHES WITHOUT TRANSFORMER
Rectangular
A165j-J
Solder terminals
Square
A165j-A
Solder terminals
Round
A165j-T
Solder terminals
Lamp terminal
Packing (t0.5)
Lock ring
Mounting nut
Model, standard, lot No., serial number
Lamp terminal
Model, standard, lot No., serial number
Packing (t0.5)
Lock ring
Mounting nut
Lamp terminal
Model, standard, lot No., serial number
Lock ring
Mounting nut
Packing (t0.5)
24
(0.95)
6
(0.24)
28.5
(1.12)
18.5
(0.73)
9.5
(0.37)
18
(0.71)
12.2
(0.48)
15.8
(0.62)
18
(0.71)
6
(0.24)
28.5
(1.12)
18.5
(0.73)
9.5
(0.37)
18
(0.71)
12.2
(0.48)
15.8
(0.62)
18
(0.71)
18
(0.71)
6
(0.24)
28.5
(1.12)
18.5
(0.73)
9.5
(0.37)
18
(0.71)
12.2
(0.48)
15.8
(0.62)
18
(0.71)
18
(0.71)
A165S/W A165S/W
33
JPANEL CUTOUTS
Rectangular
A165j-J
(Top View)
Square A165j-A
Round A165j-T
(Top View)
Note: 1. Make sure the thickness of the mounting panel is between 0.5 and 3.2 mm. If, however, a Switch Guard or Dust Cover is
used, the thickness of the mounting panel must be between 0.5 and 2 mm.
2. If the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
24 min.
(0.94)
19 min.
(0.75)
24 min.
(0.94)
19 min.
(0.75)
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
JTERMINAL ARRANGEMENT
Without Transformer
Lamp terminals are not provided with the Non-illuminated Knob-type Selector Switches and Key-type Selector Switches.
SPDT Switches
Illuminated type
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
DPDT Switches
Illuminated type
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
Lamp terminal Lamp terminal
18
(0.71)
12.2
(0.48)
7.4
(0.29)
18
(0.71)
12.2
(0.48)
7.4
(0.29)
Installation
For details on Panel Mounting, mounting and removing the Switch Unit, refer to installation details for the A16 Pushbutton Switch.
JFLANGE ROTATION (COMMON TO ALL SELECTOR SWITCHES)
A165 Knob-type Selector Switch
Fix the Switch screw and rotate the flange in 45°turns.
Flange
Fixing ring
Switch screw
Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in U.S.A.
OMRONELECTRONICSLLC
One EastCommerceDrive
Schaumburg, IL 60173
NOTE:DIMENSIONS SHOWN AREINMILLIMETERS.To convertmillimeterstoinches divideby 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 MilnerAvenue
Scarborough,OntarioM1B5V8
416-286-6465
R
OMRONON--LINE
Global-- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
A165S/W A165S/W
