CSM_A165S_W_DS_E_4_2
1
Knob-type Selector Switch (Detachable) (Cylindrical 16-dia.)
A165S/W
Separate Construction with Cylindrical
16-dia. Body
• Same separate construction as the A16-series Pushbuttons with
Miniature Design of 28.5 mm
• The same contacts can be used for both standard loads and
microloads.
• Oil-resistant IP65 models
• Conforms to EN60947-5-1.
Refer to Safety Precautions for All Pushbutton Switches/
Indicators and Safety Precautions on page 15.
List of Models
Model
Rectangular Square Round
Solder
terminals A165@-J Series A165@-A Series A165@-T Series
Voltage-
reduction
lighting
A165@-J Series A165@-A Series A165@-T Series
Screw-
less
clamp
connector
A165@-J Series A165@-A Series A165@-T Series
A165S/W
2
Model Number Structure
Model Number Legend ..... The model numbers used to order sets of Units are illustrated below. One set comprises the Selector, Lamp
(lighted models only), and Switch.
For information on combinations, refer to Ordering Information on page 3.
(1) (2) (3) (4) (5) (6)
A165W - A 2A R - 24D - 1
(3) Number of Notches/
Resetting Method
Symbol
No. of
notches Reset
method
2M
2 notches
Manual
2A Automatic
3M
3 notches
Manual
3A Automatic
(1) Lighted/
Non-lighted
(2) Shape of
Selector
Symbol
Type
SNon-
lighted
W Lighted
Symbol
Shape
JRectan-
gular
A Square
T Round
(4) Color of Selector
Symbol
Color
No
symbol
Black
(non-lighted
models only)
RRed
G Green
YYellow
(6) Contact Configuration
Note: 1. Only DPDT contacts are available with
3-notch models and Screw-less Clamp
models.
2. PCB terminals are available only with
2-notch models.
(5) Light Source
Symbol
Type Terminal
1 SPDT Solder terminal
2DPDT
1P SPDT PCB terminal
2P DPDT
2S DPDT Screw-less Clamp
Symbol
Type
No symbol Non-lighted
24D 24-V LED
Voltage Reduction Unit (24-V Built-in LED)
Note: 1. Solder terminals are only available with 100-V models.
2. The Voltage Reduction Unit is not available for models with
PCB terminals.
3. "T2" is available only for the Screw-less Clamp type.
Symbol
Type Operating voltage Rated voltage
T1 LED 100/110 VAC/VDC 110 VAC/VDC
T2 200/220 VAC/VDC 220 VAC/VDC
A165S/W
3
Ordering Information
Ordering as a Set .................The model numbers used to order sets of Units are given in the following tables. One set comprises the
Selector, Lamp (lighted models only), and Switch.
Solder Terminals
Note: Enter the desired color symbol for the Selector in @: R (red); Y (yellow); G (green). The Selector for non-lighted models is black.
Note: Enter the desired color symbol for the Selector in @: R (red); Y (yellow); G (green). The Selector for non-lighted models is black.
Note: Enter the desired color symbol for the Selector in @: R (red); Y (yellow); G (green). The Selector for non-lighted models is black.
Rectangular
A165@-J
Oil-resistant IP65
No. of notches Output Reset method Lighting method Model
2 notches
SPDT
Manual LED A165W-J2M@-24D-1
Non-lighted A165S-J2M-1
Automatic LED A165W-J2A@-24D-1
Non-lighted A165S-J2A-1
DPDT
Manual LED A165W-J2M@-24D-2
Non-lighted A165S-J2M-2
Automatic LED A165W-J2A@-24D-2
Non-lighted A165S-J2A-2
3 notches DPDT Manual LED A165W-J3M@-24D-2
Non-lighted A165S-J3M-2
Square
A165@-A
Oil-resistant IP65
No. of notches Output Reset method Lighting method Model
2 notches
SPDT
Manual LED A165W-A2M@-24D-1
Non-lighted A165S-A2M-1
Automatic LED A165W-A2A@-24D-1
Non-lighted A165S-A2A-1
DPDT
Manual LED A165W-A2M@-24D-2
Non-lighted A165S-A2M-2
Automatic LED A165W-A2A@-24D-2
Non-lighted A165S-A2A-2
3 notches DPDT Manual LED A165W-A3M@-24D-2
Non-lighted A165S-A3M-2
Round
A165@-T
Oil-resistant IP65
No. of notches Output Reset method Lighting method Model
2 notches
SPDT
Manual LED A165W-T2M@-24D-1
Non-lighted A165S-T2M-1
Automatic LED A165W-T2A@-24D-1
Non-lighted A165S-T2A-1
DPDT
Manual LED A165W-T2M@-24D-2
Non-lighted A165S-T2M-2
Automatic LED A165W-T2A@-24D-2
Non-lighted A165S-T2A-2
3 notches DPDT Manual LED A165W-T3M@-24D-2
Non-lighted A165S-T3M-2
A165S/W
4
Ordering Information
Ordering Individually......... Selectors, Lamps, and Switches (Sockets) can be ordered separately. Combinations that are not available as
sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs.
Selector (Listed on Page 5.)
Switch (Listed on Page 7.)
Note: Socket Unit Sets that combine a Lamp and a Socket Unit are also available.
Rectangular Models Square Models Round Models
Lamp
Note: Temperature rises in incandescent
lamps can cause heat deformation.
LED only
Lighted Models Non-lighted Models
Solder terminals
(no transformer)
Lighted/non-lighted
PCB terminals
Lighted/non-lighted
A165S/W
5
Ordering Information
Ordering Individually .........Selectors, Lamps, and Switches (Sockets) can be ordered separately. Combinations that are not available as
sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs.
Selectors (Oil-resistant IP65 Models Only)
Note: The selector for non-lighted models is black.
Appearance Number of
notches Reset method Lighting method Model Selector color
symbol
Rectangular
(A165@-J)
2 notches
Manual LED A165W-J2M@
Enter the desired color
symbol for the Selec-
tor in @.
R (red),
Y (yellow),
G (green)
Non-lighted A165S-J2M
Automatic LED A165W-J2A@
Non-lighted A165S-J2A
3 notches
Manual LED A165W-J3M@
Non-lighted A165S-J3M
Fully
automatic
LED A165W-J3A@
Non-lighted A165S-J3A
Square
(A165@-A)
2 notches
Manual LED A165W-A2M@
Enter the desired color
symbol for the Selec-
tor in @.
R (red),
Y (yellow),
G (green)
Non-lighted A165S-A2M
Automatic LED A165W-A2A@
Non-lighted A165S-A2A
3 notches
Manual LED A165W-A3M@
Non-lighted A165S-A3M
Fully
automatic
LED A165W-A3A@
Non-lighted A165S-A3A
Round
(A165@-T)
2 notches
Manual LED A165W-T2M@
Enter the desired color
symbol for the Selec-
tor in @.
R (red),
Y (yellow),
G (green)
Non-lighted A165S-T2M
Automatic LED A165W-T2A@
Non-lighted A165S-T2A
3 notches
Manual LED A165W-T3M@
Non-lighted A165S-T3M
Fully
automatic
LED A165W-T3A@
Non-lighted A165S-T3A
A165S/W
6
Ordering Information
Sets .............................................. Select an Operation Unit and a Socket Unit Set (Lamp and Socket Unit).
Socket Unit Set (Sets include a Socket Unit and a Lamp.)
Socket Unit Set with Voltage Reduction Unit (Solder Terminal)
Note: The LED has a 24-VAC/VDC circuit built in.
Insert one of the following letters into the box (@).
Operation Unit Set with Knob-type Selector Switch
Appearance Number of notches Classification Model
2 notches SPDT
24 V Solder terminals
A16W-2N@-24D-1
DPDT A16W-2N@-24D-2
3 notches DPDT A16W-3N@-24D-2
Appearance Classification Operating voltage Model
Standard loads and
microloads
2 notches SPDT
100/110 VAC/VDC
A16L-@-T1-1
2 notches DPDT A16L-@-T1-2
3 notches A16W-3N@-T1-2
Symbol
Light color
RRed
YYellow
G Green
Rectangular Models Square Models Round Models
Socket Unit Set with Voltage-reduction Lighting Socket Unit Set with Screw-less Clamp Connectors
Note: The LED has a 24-VAC/VDC circuit
built in.
Note: Non-lighted models do not include a
Lamp.
Voltage-
reduction
Lighting
Lamp
Lighted/
Non-lighted
Models
Lamp
Lighted Models Lighted/Non-lighted Models
A165S/W
7
Ordering Information
Screw-less Clamp Connector Socket Unit Set
Note: The 100-V models and 200-V models have a 24-VAC/VDC
circuit built in.
Ordering Individually
Switches
Lamps
Accessories and Tools (Order Separately)
Accessories
Tools
Appearance Classification Model Remarks
Standard
loads and
microloads
2 notches
DPDT
Non-lighted A16-2S Used for Pushbutton
Switches and
Knob-type Selector
Switches.
Lighted
No voltage-reduction lighting A16L-∆-@-2S
Voltage-reduction
lighting
100/110 VAC/VDC
A16L-∆-T1-2S
200/220 VAC/VDC
A16L-∆-T2-2S
3 notches
DPDT
Non-lighted A16S-3N-2LS
Lighted
No voltage-reduction lighting A16W-3N∆-@-2S
Voltage-reduction
lighting
100/110 VAC/VDC
A16W-3N-∆-T1-2S
200/220 VAC/VDC
A16W-3N-∆-T2-2S
Appearance Classification Model
Lighted
Socket (without
voltage-reduction
lighting)
2 notches SPDT
Solder terminal
A16S-2N-1L
DPDT A16S-2N-2L
3 notches DPDT A16S-3N-2L
Non-lighted 2 notches SPDT A16S-2N-1
DPDT A16S-2N-2
3 notches DPDT A16S-3N-2
Lighted
2 notches
SPDT
PCB terminal
A16S-2N-1LP
DPDT A16S-2N-2LP
Non-lighted SPDT A16S-2N-1P
DPDT A16S-2N-2P
Operating voltage
Light color
Super-bright
5 VDC 12 VAC/VDC 24 VAC/VDC
Red
A16-5DSR
A16-12DSR A16-24DSR
Yellow A16-5DSY A16-12DSY A16-24DSY
Green A16-5DSG A16-12DSG A16-24DSG
Name Appearance Classification Model Remarks
Panel Plugs
Rectangular A16ZJ-3003 Used for covering the panel cut-
outs for future panel expansion.
Degree of protection: IP40
Square A16ZA-3003
Round A16ZT-3003
Name Appearance Model
Applicable types
Remarks
Pushbutton
Switch
Knob-type
Selector Switch Key-type
Selector Switch
Emergency
Stop Switch
Indicator
Screw Fitting A16Z-3004 Yes Yes Yes Yes Yes
Convenient for
ganged installation.
Tighten to a torque of
0.39 N·m min.
Extractor A16Z-5080 Yes Yes Yes Yes Yes
Convenient for
extracting the
Switches and Lamps.
Insert symbols in ∆ and @.
∆@
Symbol
Light color
Symbol Type
Operating voltage
R Red 5D
LED
5 VDC
Y Yellow 12D 12 VAC/VDC
G Green 24D 24 VAC/VDC
Ordering as a Set: Refer to page 3. ■ Specifications and dimensions: Refer to pages 8 to 10.
■ Accessories, replacements, and tools: Refer to this page
A165S/W
8
Specifications
Approved Standard Ratings
Ratings
Switch Ratings
Minimum applicable load: 1 mA at 5 VDC
Rated values are obtained from tests conducted under the following conditions.
1. Load: Resistive load
2. Mounting conditions: No vibration and no shock
3. Temperature: 20±2°C
4. Operating frequency: 20 times/min
Contact Form
Super-bright LED
Characteristics
Socket Unit
* With LED not mounted.
(Perform testing with the LED not mounted.)
Screw-less Clamp
Operating Characteristics
UL, cUL (File No. E41515) TÜV (EN60947-5-1) (Low Voltage Directive) CCC (GB14048.5)
5 A at 125 VAC, 3 A at 250 VAC (general use)
3 A at 30 VDC (resistive)
Note: Certification has been obtained for the Socket Unit.
For detailed information on individual products that
have received certification, consult your supplier.
3 A at 250 VAC
3 A at 30 VDC
5 A at 125 VAC
3 A at 250 VAC
3 A at 30 VDC
Rated voltage Resistive load
125 VAC 5 A
250 VAC 3 A
30 VDC 3 A
Name Contact form
SPDT
Rated
voltage Rated
current Operating
voltage Internal limiting
resistor
5 VDC
8 mA
5 VDC±5% Red, yellow: 300 Ω
Green: 160 Ω
12 VAC/VDC 12 VAC/VDC
±
5%
Red, yellow: 1 kΩ
Green: 910 Ω
24 VAC/VDC 24 VAC/VDC
±
5% 2.4 k
Ω
COM
NC
NO
Item Type Knob-type Selector Switch
Allowable
operating
frequency
Mechanical 20 operations/minute max.
Electrical 10 operations/minute max.
Insulation resistance 100 MΩ min. (at 500V DC)
Contact resistance 100 mΩ max. (initial value)
Dielectric
strength
Between termi-
nals of same
polarity
1,000 VAC, 50/60 Hz for 1 min
Between ter-
minals of dif-
ferent polarity 2,000 VAC, 50/60 Hz for 1 min
Between each
terminal and
ground
2,000 VAC, 50/60 Hz for 1 min
Between lamp
terminals
1,000 VAC, 50/60 Hz for 1 min*
Vibration
resistance
Malfunction
10 to 55 Hz, 1.5-mm double amplitude
(malfunction within 1 ms)
Shock
resistance
Destruction 500 m/s2 max.
Malfunction 150 m/s2 max.
(malfunction within 1 ms)
Durability Mechanical 250,000 operations min.
Electrical 100,000 operations min.
Electric shock protection
class Class II
PTI (tracking characteristic)
175
Degree of contamination 3 (IEC60947-5-1)
Weight Approx. 13 g
(in the case of a lighted DPDT switch)
Ambient operating
temperature
−10°C to 55°C
(with no icing or condensation)
Ambient operating
humidity 35% to 85%RH
Ambient storage
temperature
−25°C to 65°C
(with no icing or condensation)
Item Type Screw-less Clamp
Recommended
wire size 0.5 mm2 twisted wire or 0.8 mm-dia. solid wire
Usable
wires
and
tensile
strength
Twisted
wire
0.3 mm20.5 mm20.75 mm21.25 mm2
Solid
wire
0.5 mm dia. 0.8 mm dia. 1.0 mm dia.
---
Tensile
strength
10 N 20 N 30 N 40 N
Length of exposed
wire
10 ±1 mm
Compliant
standards JIS C 2811 Terminal Blocks for Industrial Use
Type
Characteristics
Knob-type Selector Switch
2 notches 3 notches
Operating force (OF) max. 0.1 N·m
Set position (SP) 90±5°45°+10
0
A165S/W
9
Nomenclature
Model structure
For information on rotating the flange, refer to page 14.
Example: Knob-type Selector Switch with Two Notches
(Standard condition when shipped)
Note: The angle is 75° for self-resetting models.
The flange can be rotated to easily change the
operation angle of the knob.
S
peci
f
ications
Operation Angle Contact Form
(75°)
Two notches Three notches
90°
FP
FP
45°
(45°)
45°
(45°)
Note: The angle used for automatic reset is
shown in parentheses.
FP: Free Position
No. of
notches
Contact from
SPDT DPDT
Posi-
tion SW Posi-
tion SW2 SW1
2 notches
3 notches
---
SW1SW2
●Color of Selector
· LED models
Red Yellow Green
· Non-lighted models
Black
●Lighting Method
· Lighted (LED) models
(The upper face of the
knob is illuminated.)
· Non-lighted models
●Number of Notches and Reset Method
· 2 Notches: Manual reset, Automatic reset
· 3 Notches: Manual reset, Automatic reset
●Switch Specifications
5 A at 125 VAC
5 A at 250 VAC
3 A at 30 VDC
Minimum applicable load:
1 mA at 5 VDC
●Flange Shape
Rectangular
(A165@-J)
●Protective
Structure
Oil-resistant IP65
●Terminal Type
Solder terminals
PCB terminals
Square
(A165@-A)
Round
(A165@-T)
Selector
Switch
90°
(75°)
90°90°
FP
A165S/W
10
Dimensions • The Dimension shows 2-switch outputs. • The lamp terminal is not provided with non-lighted models. (Unit: mm)
4
10.8
9.5
M16×1
Lock rin
g
Mounting nut
Model, ratings, standard
Lamp terminal
18
12.2
21.1
28.5
18.5
Packing (t0.5)
12.4 15.8
4.85
18
24
6
Rectangular A165@-J
Solder terminals (tab terminals #110)
Note: See page 12 for panel cutouts.
4
10.8
9.5
M16×1
Lock ring
Mounting nut
Model, ratings, standard
18
12.2
21.1
28.5
18.5
Packing (t0.5)
12.4 15.8
4.85
18
18
6
Lamp terminal
Square A165@-A
Solder terminals (tab terminals #110)
Note: See page 12 for panel cutouts.
4
10.8
9.5
M16×1
Lock ring
Mounting nut
Model, ratings, standard
18
12.2
21.1
28.5
18.5
Packing (t0.5)
12.4 15.8
4.85
18
18
6
Lamp terminal
Round A165@-T
Solder terminals (tab terminals #110)
Note: See page 12 for panel cutouts.
A165S/W
11
Dimensions • The Dimension shows 2-switch outputs. • A rectangular model is listed as an example. (Unit: mm)
18
24
6
M16×1
Mounting nut
Lock ring
Packing (t0.5)
18.5 28.3
9.5 21.1
10.8
4
20.4
4.85
0.5
12.4 18.6
6.3
0.5
18.4
Rectangular A165@-J
PCB terminals
Note: See page 12 for panel cutouts.
• The lamp terminal is not
also provided with non-
lighted models.
6
Case
Selector
9.5 21.1
28.518.5
189.8
0.5
0.5
0.5 Direction-indication arrow
M16×1
12.2
42.7
50.1
(22.4)
24
18 20.6
10.8
4
16.68.8
12.42.8
Switch
Mounting nut
Lock ring
Packing (t0.5)
2.8
24 min.
23 min.
16 dia.
+0.2
0
Panel Cutouts
Rectangular A165W@-T
Reduced-voltage lighting
solder terminals
(tab terminals #110)
Mounting nut
Lock ringSwitch dismounting lever
Packing (t0.5)
27.4(31.7) 23.5
23.924
9.5
18.5 48.9
24
18
M16×1
42
10.8
6
25 min.
Panel Cutouts
33 min.
16 dia.
+0.2
0
Rectangular A165@-2S
Screw-Less Clamp
• The lamp terminal is
also provided with non-
lighted models.
A165S/W
12
Dimensions (Unit: mm)
Panel Cutouts
Models with Solder Terminals and Models with Screw-less Clamp Connectors
Models with PCB Terminals
Terminal Arrangement
Models with Solder Terminals without Reduced-voltage Lighting (Lamp terminals are not provided with the Non-lighted
Knob-type Selector Switches and Key-type Selector Switches.)
Rectangular A165@-J Square A165@-A, Round A165@-T
Note: 1. Make sure the thickness of the mounting panel is 0.5 to 3.2 mm.
2. If the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
3. Figures in parentheses are for screw-less clamp connectors.
Rectangular A165@-J Square A165@-A, Round A165@-T
Note: 1. Ensure that the variation in the distance between the centers of neighboring mounting holes is less than ±0.1 mm.
2. Make sure the thickness of the mounting panel is 0.5 to 3.2 mm. If, however, a Switch Guard or Dust Cover is used, the thickness of the mounting panel must
be 0.5 to 2 mm.
3. If the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
Lighted SPDT Switches Lighted DPDT Switches
Non-lighted SPDT Switches Non-lighted DPDT Switches
24 min.
(25 min.)
19 min.
(33 min.)
(Top View)
16 dia.
+0.2
0
19 min.
(25 min.)
16 dia.
+0.2
0
19 min.
(33 min.)
(Top View)
24 min.
24 min.
14.7±0.05 dia.
9.1±0.05
5.1±0.05
(Top View)
16 dia.
+0.2
0
24 min.
24 min.
9.1±0.05
5.1±0.05
14.7±0.05 dia.
(Top View)
16 dia.
+0.2
0
2.6
0.9
1.5
2.8 Lamp terminal
12.2
18
7.4
NC L-
NO
COM
SW1
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch.
2.6
0.9
1.5
2.8 Lamp terminal
12.2
18
7.4
NC
NO
COM
NC L-
NO
COM
SW2SW1
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch.
2.6
0.9
1.5
2.8
12.2
18
7.4
Side with TOP
indicated
NC
NO
COM
SW1
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
2.6
0.9
1.5
2.8
12.2
18
7.4
Side with TOP
indicated
NC
NO
COM
NC
NO
COM
SW2
SW1
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
A165S/W
13
Dimensions (Unit: mm)
Models with PCB Terminals
Note: For details of the terminal arrangement for Screw-Less Clamps, refer to the corresponding section for the A16.
Lighted SPDT Switches Lighted DPDT Switches
Model, rating, and lot
number indication
4.85
18.6
Lamp terminal (t=0.5)
1.5
3.5
5.3
2.7
0.8
12.4
Side with TOP
indicated
NC L-
NO
COM
SW1
Dimensions of
PCB Terminals
Terminal Arrangement
(Bottom View)
4.85
±
0.05
Side with TOP indicated
A = 24 min.: Rectangular
A = 21 min.: Square/Round
L = 24 min.
Use t = 1.6 for the PCB.
PCB Cutouts
(Bottom View)
20±0.1
6.3±0.05
Five, 1 dia.
Two, 5 dia.
A±0.1
L±0.1
12.4±0.05
Note: Secure the panel to the board using stud bolts if force will
be applied to the board after wiring.
1.5
3.5
5.3
2.7
0.8
4.85
18.6
12.4
Lamp terminal (t=0.5)
Side with TOP
indicated
NC
NO
COM
NC L-
NO
COM
SW2SW1
Dimensions of
PCB Terminals
Terminal Arrangement
(Bottom View)
6.3±0.05
6.3±0.05
Two, 5 dia.
Eight, 1 dia.
A±0.1
L±0.1
Side with TOP indicated
4.85
±
0.05
20±0.1
12.4±0.05
PCB Cutouts
(Bottom View)
A = 24 min.: Rectangular
A = 21 min.: Square/Round
L = 24 min.
Use t = 1.6 for the PCB.
Note: Secure the panel to the board using stud bolts if force will
be applied to the board after wiring.
A165S/W
14
Dimensions (Unit: mm)
Non-lighted Models with PCB Terminals (Lamp terminals are not provided with the Non-lighted Knob-type Selector
Switches and Key-type Selector Switches.)
For details on mounting the Switch to a panel, and mounting and dismounting the Switch, refer to
installation details for the A16 Pushbutton Switch.
Flange Rotation (All Selector Switches)
Non-lighted SPDT Switches Non-lighted DPDT Switches
Model, rating, and lot
number indication
Dimensions of
PCB Terminals
Terminal Arrangement
(Bottom View)
18.6
1.5
3.5
5.3
2.7
0.8
12.4
Side with TOP
indicated
NC
NO
COM
SW1
12.4±0.05
20±0.1
6.3±0.05
Three, 1 dia.
Two, 5 dia.
Side with TOP indicated
PCB Cutouts
(Bottom View)
A±0.1
L±0.1
A = 24 min.: Rectangular
A = 21 min.: Square/Round
L = 24 min.
Use t = 1.6 for the PCB.
Note: Secure the panel to the board using stud bolts if force will
be applied to the board after wiring.
1.5
3.5
5.3
2.7
0.8
18.6
12.4
Side with TOP
indicated
NC
NO
COM
NC
NO
COM
SW2
SW1
Dimensions of
PCB Terminals
Terminal Arrangement
(Bottom View)
12.4±0.05
20±0.1
6.3±0.056.3±0.05
Six, 1 dia.
Two, 5 dia.
A±0.1
L±0.1
Side with TOP indicated
PCB Cutouts
(Bottom View)
A = 24 min.: Rectangular
A = 21 min.: Square/Round
L = 24 min.
Use t = 1.6 for the PCB.
Note: Secure the panel to the board using stud bolts if force will
be applied to the board after wiring.
Flange
Lock ring
Switch screw
Flange
Lock ring
Switch screw
A165 Knob-type Selector Switch
Fix the Switch screw and rotate the flange in
45° turns.
A165 Key-type Selector Switch
Fix the Switch screw and rotate the flange in
45° turns.
A165S/W
15
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches/Indicators.
Do not apply a voltage between the incandescent
lamp and the terminal that is greater than the rated
voltage. If the incandescent lamp is broken, the
operating part may pop out.
Always turn OFF the power and wait for 10 minutes
before replacing the incandescent lamp. If the lamp is
replaced immediately after the power is turned OFF,
the remaining heat may cause burns.
Mounting
•Always make sure that the power is turned OFF before mounting,
removing, or wiring the Switch, or performing maintenance.
•Do not tighten the mounting nut more than necessary using tools
such as pointed-nose pliers. Doing so will damage the mounting
nut.
The tightening torque is 0.29 to 0.49 N·m.
Wiring
•Solder terminals and quick-connect terminals (#110) are commonly
used for terminals.
•Be sure to use electrical wires that are a size appropriate for the
applied voltage and carry current (conductor size is 0.5 to 0.75
mm2). Perform soldering according to the conditions provided
below. If the soldering is not properly performed, the lead wires will
become detached, resulting in short-circuits.
1. Hand soldering: 350°C, within 3 s
2. Dip soldering: 350°C, within 3 s
Wait for one minute after soldering before exerting any external
force on the solder.
•Use non-corrosive resin fluid as the flux.
•Make sure that the electric cord is wired so that it does not touch
the Unit. If the electric cord touches the Unit, then electric wires with
a heat resistance of 100°C min. must be used.
•After wiring the Switch, maintain an appropriate clearance and
creepage distance.
Operating Environment
•The IP65 model is designed with a degree of protection so that it
will not sustain damage if it is subjected to water from any direction
to the front of the panel.
Using the Microload
•Insert a contact protection circuit, if necessary, to prevent the
reduction of life expectancy due to extreme wear on the contacts
caused by loads where inrush current occurs when the contact is
opened and closed.
•The A16 allows both a standard load (125 V at 5A, 250 V at 3 A)
and a microload. If a standard load is applied, however, the
microload area cannot be used. If the microload area is used with a
standard load, the contact surface will become rough, and the
opening and closing of the contact for a microload may become
unreliable.
•The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability
level of 60% (λ 60) (conforming to JIS C5003).
The equation, λ 60 = 0.5 × 10-6/operations indicates that the
estimated malfunction rate is less than 1/2,000,000 operations with
a reliability level of 60%.
LED
•The LED current-limiting resistor is built-in, so external resistance
is not required.
WARNING
Precautions for Correct Use
Rated voltage Internal limiting resistor
5 VDC Red, yellow: 300 Ω
Green: 160 Ω
12 VAC/VDC Red, yellow: 1 kΩ
Green: 910 Ω
24 VAC/VDC 2.4 kΩ
Invalid
area
0.1 1 10 100 1,000
1 mA
5
12
24
30
0.15 mA
Current (mA)
Voltage (V)
0
Microload area
A165S/W
16
Others
•The oil-resistant IP65 uses NBR rubber and is resistant to general
cutting oil and cooling oil. Some particular oils cannot be used with
the oil-resistant IP65, however, so contact your OMRON
representative for details.
•If the panel is to be finished with coating, etc., make sure that the
panel meets the specified dimensions after the coating.
•Do not subject the Switch to extreme shock or vibration. Doing so
will cause malfunctions and damage to the Switch.
Do not let sharp objects come into contact with the Switches that
are made of resin. Doing so will damage the Switches, causing
scratches on the outside of the operating parts, and malfunction.
When handling the Switches, do not throw or drop them.
Do not allow the Switch
to drop and hit the
ground.
Do not place or drop
heavy objects on the
Switch.
Do not operate the Switch
with hard or sharp objects.
Screwdriver
Hammer
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.
2012.9
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 2012 All Right Reserved.
