Datasheet

A3C
Pushbutton Switch (Lighted/Non-Lighted) (Cylindrical 12-dia.)
CSM_A3C_DS_E_2_1
Pushbutton Switch Series with
Cylindrical 20-mm × 12-dia. Body
• High-intensity uniform surface lighting.
• Round body enables easy hole making.
• Miniature size with excellent feeling of operation.
RoHS Compliant
Refer to Safety Precautions for All Pushbutton Switches and
Safety Precautions on page 12.
List of Models
Appearance
Model
Rectangular
Models
A3CJ
Square
Models
A3CA
Round
Models
A3CT
■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10. ■ Accessories: Refer to page 7.
■ Precautions for correct use and safety precautions: Refer to page 12.
1
A3C
Model Number Legend .............................................When placing your order, specify the individual component part model numbers of
the Pushbutton, Lamp (lighted models only), and Switch, as listed in the ordering
tables below.
For information on combinations, refer to Ordering Information on page 3.
(1)
(2) (3) (4)
(5)
(6)
A3C J - 9 0 A 1 - 24E R
(1) Shape of
Pushbutton
Symbol
J
A
T
Shape
Rectangular
Square
Round
(2) Terminal Type
Symbol
0
Type
Solder terminal
(3) Switch Specifications
Standard Load
Symbol
A
B
Operation
Momentary
Alternate
1a1b
Non-lighted
Illumination
only
• Colored-illumination models are
also available.
Refer to page 4.
Operation
Momentary
Alternate
0
1
Microload
Symbol
E
F
(4) Lighted/Non- (5) Lighting
Method
lighted
LED Lamp-lighted
SymType
Models
bol
1a1b
• Standard Load
0.5 A at 250 VAC
1 A at 125 VAC
1 A at 30 VDC
• Microload
0.1 A at 125 VAC
0.1 A at 30 VDC
Minimum applicable load
1 mA at 5 VDC
Momentary-action: Self-resetting
Alternate-action: Self-holding
"Colored-illumination" models
operate in the
way shown below:
Unlit
White
Lit
Color
The built-in LED
is colored.
Symbol
05E
12E
24E
Operating
voltage
5 VDC
12 VDC
24 VDC
Incandescent
Lamp-lighted
Models
Symbol
06
14
28
Operating
voltage
5 VAC/VDC
12 VAC/VDC
24 VAC/VDC
Non-lighted
Models
No symbol
(6) Color of
Pushbutton
For LED
Lamp
SymColor
bol
R
Red
Y
Yellow
G
Green
W
White
For
Incandescent
Lamp
SymColor
bol
R
Red
Y
Yellow
G
Green
A
Blue
W
White
For Nonlighted
Models
SymColor
bol
R
Red
Y
Yellow
G
Green
W
White
A
Blue
B
Black
2
A3C
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 Pushbutton, Lamp (lighted models only), and Switch.
Round
Models
Square
Models
Rectangular
Models
A3CT
A3CA
A3CJ
Lighted Pushbutton Switches (SPST-NO+SPST-NC Solder Terminals)
Operation
Shape
Non-lighted
LED lamp
Square
(A3CA)
Set
Set
Set
A3CJ-90A1-05E@
A3CJ-90B1-05E@
A3CJ-90E1-05E@
A3CJ-90A1-12E@
A3CJ-90B1-12E@
A3CJ-90E1-12E@
A3CJ-90A1-24E@
A3CJ-90B1-24E@
A3CJ-90E1-24E@
A3CJ-90A1-14@
Incandescent
lamp
LED lamp
Non-lighted
---
A3CJ-90B1-28@
A3CJ-90A0-@
A3CJ-90B0-@
A3CJ-90E0-@
A3CA-90A1-05E@
A3CA-90B1-05E@
A3CA-90E1-05E@
A3CA-90A1-12E@
A3CA-90B1-12E@
A3CA-90E1-12E@
A3CA-90A1-24E@
A3CA-90B1-24E@
A3CA-90E1-24E@
A3CA-90A1-14@
---
---
A3CA-90A1-28@
A3CA-90B1-28@
A3CA-90A0-@
A3CA-90B0-@
A3CA-90E0-@
A3CT-90A1-05E@
A3CT-90B1-05E@
A3CT-90E1-05E@
A3CT-90A1-12E@
A3CT-90B1-12E@
A3CT-90E1-12E@
A3CT-90A1-24E@
A3CT-90B1-24E@
A3CT-90E1-24E@
A3CT-90A1-06@
Incandescent
lamp
---
A3CJ-90A1-28@
A3CA-90A1-06@
Non-lighted
Round
(A3CT)
Momentary operation (Self-resetting)
A3CJ-90A1-06@
Incandescent
lamp
Microload
Alternate operation (Self-holding)
Lighting
LED lamp
Rectangular
(A3CJ)
Standard load
Momentary operation (Self-resetting)
A3CT-90A1-14@
---
A3CT-90A1-28@
A3CT-90B1-28@
A3CT-90A0-@
A3CT-90B0-@
--A3CT-90E0-@
Pushbutton
color symbol
(Color)
R: red
Y: yellow
G: green
W: white
R: red
Y: yellow
G: green
W: white
A: blue
B: black *
R: red
Y: yellow
G: green
W: white
R: red
Y: yellow
G: green
W: white
A: blue
B: black *
R: red
Y: yellow
G: green
W: white
R: red
Y: yellow
G: green
W: white
A: blue
B: black *
Note: 1. Enter the desired color symbol for the Pushbutton in the @ at the end of the model number.
2. There are also alternate-operation models that can be used for microloads. Refer to the Switch table on page 6.
* Black ("B") Pushbuttons are only available for non-lighted models.
Individual models: Refer to pages 5 to 6.
■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10.
(The Pushbutton, Lamp, and Switch can be ordered separately.)
■ Accessories: Refer to page 7.
3
A3C
Ordering Information
Illumination-only and Colored-illumination LED Models
"Illumination only" describes LED models for which the screen color is the same whether the LED is lit or not.
Example: Red LED
Not lit
Cap (red)
Red
Legend plate (milky white)
Lit
Red
Pushbutton
Reflective plunger
LED lamp (red) - - - Lamp
"Colored illumination" describes LED models for which the screen color is white when the LED is not lit and changes to the color of the LED lamp
when the LED is lit.
Example: Red LED
Not lit
White
White cap (semi-transparent)
Lit
Legend plate (milky white)
Red
Pushbutton
Reflective plunger
LED lamp (red) - - - Lamp
Ordering: With colored-illumination models, order the Pushbutton, Lamp, and Switch as shown in the following table.
Illuminated color
Pushbutton
Red
IP40
A3C@-500W
Enter one of the following symbols in @.
J: Rectangular
A: Square
T: Round
Yellow
Green
Lamp (LED)
Switch
[email protected]
[email protected]
Enter one of the
following symbols in @.
5: 5 VDC
12: 12 VDC
24: 24 VDC
Refer to page 6. Make the selection according to the
shape of the Pushbutton.
[email protected]
4
A3C
Ordering Information
Ordering Individually ............... Pushbuttons, Lamps, and Switches 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.
Ordering: Specify a model number from the following page.
LED Lamp
Non-lighted Models
Operation Unit
Operation Unit
Lamps
LED Lamp
Incandescent Lamp
Switch
Ordering set combinations: Refer to page 3.
Switch
■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10.
■ Accessories: Refer to page 7.
5
A3C
Ordering Information
Ordering Individually ................Pushbuttons, Lamps, and Switches 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.
Pushbuttons
LED Lamp
Non-lighted Models
Rectangular
Square
Round
Red
A3CJ-500R
A3CA-500R
A3CT-500R
Red
A3CJ-500R
A3CA-500R
A3CT-500R
Yellow
A3CJ-500Y
A3CA-500Y
A3CT-500Y
Yellow
A3CJ-500Y
A3CA-500Y
A3CT-500Y
A3CT-500G
Shape
Button color
Square
Rectangular
Shape
Round
Button color
Green
A3CJ-500GY
A3CA-500GY
A3CT-500GY
Green
A3CJ-500G
A3CA-500G
White
A3CJ-500W
A3CA-500W
A3CT-500W
White
A3CJ-500W
A3CA-500W
A3CT-500W
Blue
A3CJ-500A
A3CA-500A
A3CT-500A
Black
A3CJ-501B
A3CA-501B
A3CT-501B
Note: The red, yellow, and white Pushbuttons listed above can be used with
either LED lamp-lighted models or incandescent lamp-lighted models.
Note: Models other than black can also be used with incandescent lamps.
Incandescent Lamp
Rectangular
Square
Red
A3CJ-500R
A3CA-500R
A3CT-500R
Yellow
A3CJ-500Y
A3CA-500Y
A3CT-500Y
Green
A3CJ-500G
A3CA-500G
A3CT-500G
White
A3CJ-500W
A3CA-500W
A3CT-500W
Blue
A3CJ-500A
A3CA-500A
A3CT-500A
Shape
Round
Button color
Lamps
LED Lamp
Color
Rated voltage
Incandescent Lamp
Red
Yellow
Green
Rated voltage
White
5 VDC
A16-5DR
A16-5DY
A16-5DG
A16-5DW
12 VDC
A16-12DR
A16-12DY
A16-12DG
A16-12DW
24 VDC
A16-24DR
A16-24DY
A16-24DG
A16-24DW
Model
6 VAC/DC
A16-5
14 VAC/DC
A16-12
28 VAC/DC
A16-24
Switches
Sealing
Degree of protection: IP40
Rectangular
Square
Round
Shape
Contact type
Switch action
Momentary
Standard load
SPST-NO+
SPST NC
Microload
Alternate
Momentary
Alternate
Ordering set combinations: Refer to page 3.
Terminal
Solder
Solder
A3CJ-7011
A3CA-7011
A3CT-7011
A3CJ-7021
A3CA-7021
A3CT-7021
A3CJ-7111
A3CA-7111
A3CT-7111
A3CJ-7121
A3CA-7121
A3CT-7121
■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10.
■ Accessories: Refer to page 7.
6
A3C
Ordering Information
Accessories, Replacements, and Tools
Accessories
Name
Appearance
Socket
Insulation Cover
Classification
Model
Wire-wrap terminal
A3C-4101
PCB terminal
A3C-4102
Solder terminal
A3C-4103
---
A3C-3002
For rectangular models
A3CJ-5050
For square, round models
A3CA-5050
For rectangular models
A3CJ-5060
Switch Guard
Remarks
Cannot be used with Insulation Cover.
Cannot be used with Socket.
Cannot be used with Dust Cover.
Dust Cover
Cannot be used with Switch Guard.
Can be used with Dust Cover attached.
Tools
Name
Appearance
Classification
Model
Remarks
Tightening Tool
---
A3C-3004
Extractor
---
A3PJ-5080
---
Model
Remarks
The tightening torque is 0.20 to 0.39 N·m.
Replacements
Name
Legend Plate
Appearance
Classification
For rectangular models
A3CJ-5201
For square models
A3CA-5201
For round models
A3CT-5201
One Legend Plate (milk-white) is supplied per
standard Switch.
■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10.
7
A3C
Approved Standard Ratings
Characteristics
UL (File No. E41515), CSA (File No. LR45258)
Standard Load:
0.5 A at 250 VAC
1 A at 125 VAC
1 A at 30 VDC
0.1 A at 125 VAC
0.1 A at 30 VDC
Microload:
Note: Certification has been obtained for the Switch Unit.
For detailed information on individual products that have received
certification, consult your supplier.
Operating frequency
Mechanical
Momentary-action models: 120 operations/minute max.
Alternate-action models: 60 operations/minute max. *1
Electrical
20 operations/minute max.
Contact
Resistance
Standard load
50mΩ max.
Microload
100mΩ max.
Insulation resistance
CCC (GB14048.5)
Standard Load:
Microload:
0.5 A at 250 VAC
0.1 A at 250 VAC
Dielectric
strength
Ratings
Model
Item
AC resistive load
DC resistive load
Standard load
0.5 A at 250 VAC
1 A at 125 VAC
1 A at 30 VDC
Microload *
0.1 A at 125 VAC
0.1 A at 30 VDC
Note: The above ratings are for testing under the following conditions:
1) Load: Resistive load
2) Mounting conditions: No vibrations or shock
3) Temperature: 20°C ± 2°C
4) Operation frequency: 20 operations/minute
* The minimum permissible load is 1 mA, 5 VDC.
LED Lamp
Rated voltage
Rated current
Operating
voltage
Internal limiting
resistance
5 VDC
30 mA
5 VDC ± 5%
33 Ω
12 VDC
15 mA
12 VDC ± 5%
270 Ω
24 VDC
10 mA
24 VDC ± 5%
1,600 Ω
Incandescent Lamp
Rated voltage
Rated current
Operating voltage
6 VAC/DC
60 mA
5 VAC/DC
14 VAC/DC
40 mA
12 VAC/DC
28 VAC/DC
24 mA
24 VAC/DC
Vibration
resistance
Shock
resistance
Durability
100 MΩ min. (at 500 VDC)
Between terminals
of same polarity
1,000 VAC, 50/60 Hz for 1 min
Between terminals
of different polarity
2,000 VAC, 50/60 Hz for 1 min
Between each
2,000 VAC, 50/60 Hz for 1 min
terminal and ground
Between lamp
terminals
1,000 VAC, 50/60 Hz for 1 min *2
Malfunction
10 to 55 Hz, 1.5-mm double amplitude *3
Destruction
500 m/s2
Malfunction
150 m/s2 *3
Mechanical
Momentary-operation models: 1,000,000 operations min.
Alternate-operation models: 100,000 operations min. *1
Electrical
100,000 operations min.
Weight
Approx. 5 g <The weight indicated here applies
to the lighted models (SPST-NO+SPST-NC).>
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)
Degree of protection
IP40
Electric shock protection class
Class II
PTI (proof tracking index)
175
Pollution degree
3 (IEC60947-5-1)
*1. With alternate-operation models, one operation cycle consists of set and
reset operations.
*2. The figure given above for the dielectric strength between lamp terminals is
for when there is no LED lamp or incandescent lamp mounted.
*3. No malfunction for more than 1s.
Operating Characteristics
Operating force
OF max.
Releasing force
RF min.
Total travel
TT
2.45 N {250 gf}
0.29 N {30 gf}
Approx. 3.5 mm
Lock travel alternate LTA min. *
0.5 mm
Pretravel
2.5 mm
PT max.
* Alternate operation models only.
Contact Form
Contact name
SPDT
Contact form
NO
NO
NC
NC
8
A3C
Nomenclature
Model Structure
Display Unit Structure
Color cap
(1) Shape of Pushbutton
(2) Color of Pushbutton
Legend Plate
Pushbutton
Reflective
plunger
Lamp
(3) Type of Lamp
Switch
(4) Switch Specifications
Note:
(1)
(2)
The A3CJ model is shown here as a representative example.
Type
Shape of Pushbutton
Rectangular Square
Round
(A3CJ)
(A3CA)
(A3CT)
LED lamp-lighted Models:
Red, Yellow, Green, White
Incandescent lamp-lighted Models:
Red, Yellow, Green, White, Blue
Non-lighted Models:
Red, Yellow, Green, White, Blue, Black
Specifications
------
------
LED Lamp
(3)
Incandescent Lamp
Standard load
(4)
Microload
0.5 A at 250 VAC
1 A at 125 VAC
1 A at 30 VDC
0.1 A at 125 VAC
0.1 A at 30 VDC
Minimum applicable load: 1 mA at 5 VDC
9
A3C
Dimensions
(Unit: mm)
Rectangular Models/A3CJ
Square Models/A3CA
9.5
6
20
Round Models/A3CT
6
1
9.5
20
9.5
20
9.5
9.5
6
0.6
9.5
0.6
0.6
M12 × 1
M12 × 1
M12 × 1
14
14
11.8
14 dia. 11.8 dia.
11.8
11.8
15.7
26.5
26.5
26.5
14
18
Terminal Connections
Terminal
SPST-NO + SPST-NC Lighted and non-lighted models
Terminal Arrangement
(BOTTOM VIEW)
0.6
6.5
t0.4
1.6
Solder terminal
Lamp terminal
t0.3
Terminal hole
L+
NC
NO
L-
NC
NO
2
0.8
0.8
Panel Cutout (Top View)
Accessories used
Rectangular/A3CJ
12 dia.+0.2
0
19 min.
7.5±0.1
Square/A3CA, Round/A3CT
2 dia. (Lock hole)
15 min.
5.5±0.1
Switch only
12 dia.+0.2
0
15 min.
Note: Recommended panel thickness: 1.0 to 3.2 mm.
12 dia.+0.2
0
22.5 min.
7.5±0.1
Note: Recommended panel thickness: 1.0 to 3.2 mm.
12 dia.+0.2
0
2 dia.
19 min.
5.5±0.1
With Switch Guard
19 min.
12 dia.+0.2
0
23.5 min.
7.5±0.1
19 min.
2 dia.
5.5±0.1
With Dust Cover
---------19.5 min.
• If the panel is to be finished (e.g., coated), make sure that the panel meets the specified dimensions after the coating.
10
A3C
Dimensions
(Unit: mm)
Accessory Mounting Dimensions
Dimensions with Socket Mounted (The diagrams below show the external dimensions for rectangular models as representative models.)
Wire-wrap Terminal/A3C-4101
33.6
PCB Terminal/A3C-4102
33.6
15.8
16.7
Solder Terminal/A3C-4103
1
3.5
33.6
16.7
5
16.7
1
0.6 1.6
3.55
13.9 dia.
3.55
3.2
1.6
13.9 dia.
13.9 dia.
3.2
0.3
1
0.3
3.55
4.7
7
PCB Cutout
(BOTTOM VIEW)
9.7±0.1
7
Terminal Hole Dimensions
Six, 0.8 dia.
2
0.5
5.1± 0.1 7.4± 0.1
0.8
Switch Guard
Rectangular
A3CJ-5050
Square/Round
A3CA-5050
24.5
13.5
18
24.5
1
13.5
18
Holder (black)
Holder (black)
Guard (transparent)
Guard (transparent)
9
9
18
18
21.5
18
Torsion spring
Torsion spring
Dust Cover
A3CJ-5060
Insulation Cover
A3C-3002
Legend Plate
Rectangular Square
Round
24.5
13.8
18
0.8
33.6
18
10.1
14
Cover A (black)
Cover B (transparent)
9.6
10.1
10.1
10.1 dia.
13.9 dia.
Note: 1. The thickness is 0.8 mm.
2. Since the Legend Plate is made of
polycarbonate, use alcohol-based paints
such as melanin, phthalic acid, or acrylic
paint when marking the legend.
18.5
22.5
1
11
A3C
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches.
CAUTION
Do not apply a voltage higher than the maximum
rated operating voltage between the lamp terminals,
as there is a risk that the incandescent lamp or LED
lamp will be damaged, and the Pushbutton will be
ejected.
When replacing the incandescent lamp, first turn OFF
the power supply, and then wait 10 minutes before
performing replacement, as the lamp is still hot
immediately after the power is turned OFF, so there
is a risk of burns.
Precautions for Correct Use
Using Microloads
• Using a standard load switch for opening and closing a microload
circuit may cause wear on the contacts. Use the switch within the
operating range. (Refer to the diagram below.) Even when using
microload models within the operating range shown below, if inrush
current occurs when the contact is opened or closed, it may cause
the contact surface to become rough, and so decrease life
expectancy. Therefore, insert a contact protection circuit where
necessary. 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 x 10−6/times indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of
60%.
Voltage (V)
Mounting
• To prevent electric shock or a fire, always make sure that the power
is turned OFF before mounting, removing, or wiring the Switch, or
performing maintenance.
• Do not tighten the mounting ring excessively using pliers or a similar
tool. Excessive tightening may damage the mounting ring.
(Tightening torque: 0.20 to 0.39 N·m {20 gf to 40 gf})
0.15mA
26mA
24
Operating Environment
• Do not use in locations that are subject to dust, oil, or metal filings
as these may penetrate the interior of the Switch and cause
malfunction.
Standard
load area
Microload
area
Wiring
• When wiring, use wires of a size appropriate for the applied voltage
and carry current. Perform soldering correctly under the conditions
given below. Using the Switch with the wires soldered incorrectly
may cause the terminals to become abnormally hot and cause a
fire.
1. Soldering iron tip temperature: 350°C max. within 3 seconds.
2. Dip soldering: At 350°C within 3 seconds.
Wait for one minute after soldering before exerting any external
force on the solder.
• Use a non-corrosive rosin liquid for the flux.
• Perform wiring so that the wire sheaths do not come into contact
with the Switch. If this is unavoidable, use wires that can withstand
temperatures of 100°C min.
• After wiring to the Switch has been completed, ensure an
appropriate insulation distance.
100mA
30
12
Invalid
area
5
100mA 150mA
1mA
0
0.1
1
10
100
1,000
Current (mA)
LED
• Resistance to limit the LED current is provided internally and so an
external resistance is not required.
Rated voltage
5 VDC
12 VDC
24 VDC
Internal limiting resistance
33 Ω
270 Ω
1,600 Ω
12
A3C
Application
Mounting and Replacing the Pushbutton
Panel Mounting
(1) Mounting Direction for the Pushbutton/Display and Lamp
Lighted Pushbutton Switch
• Insert the Lamp (incandescent lamp or LED lamp) into the
Pushbutton so that the lamp guide fits into the wider gap between
the projections on the Pushbutton.
Projections
LED/lamp guide
LED/lamp guide
• Insert the Switch from the front of the panel. Mount the mounting
nut from the terminal end of the Switch and tighten it.
• There are projections on the terminal end of the Switch which may,
depending on the orientation, block the nut. In this case, turn the nut
until it is possible to mount it. Tighten the nut to a torque between
0.20 and 0.39 N·m.
• If soldering is used, mount the mounting nut first. Lead wires and
mounds of solder may make it impossible to mount the nut after
soldering.
Panel
Mounting nut
Indicator
• With Indicators, the Lamp is inserted facing the opposite direction
(i.e., at 180°) to that for Lighted Pushbutton Switches.
LED/lamp guide
Socket Mounting
• After securing the Switch to the panel using the mounting nut, insert
the Socket into the Switch.
• Align the positioning holes of the Socket with the projections of the
Switch before inserting the Socket.
Groove of the Display
Projection of the LED/lamp
Note: Push the projections on the Lamp into the grooves on the Pushbutton/
Display.
The Lamp for Lighted Pushbutton Switches moves, but the Lamp for
Indicators is fixed.
Panel
Projection
of the Switch
(2) Mounting Direction for the Pushbutton/Display and Switch
• Insert the Pushbutton/Display into the Switch so that the lamp guide
is aligned with the non-projecting part of the Switch.
• Apply a pressure between 9.8 and 24.5 N.
Positioning
hole of the Socket
Projection
of the Switch
Mounting the Insulation Cover
Note: 1. The mounting direction for Indicators is 180° to that for Lighted
Pushbutton Switches. Be sure to insert the Legend Plate and other
parts with the correct orientation.
2. If the terminals of the Lamp become bent, it may be impossible to fit
them into the lamp terminal holes. Ensure that the terminals are
straight when they are inserted.
3. Take particular care about the mounting direction with the round
models (A3CT).
(3) Removing the Pushbutton/Display
Hold the recessed portions on the cap of the Pushbutton and pull.
• After securing the Switch to the panel using the mounting nut, pass
the lead wires through the holes in the Insulation Cover and then
perform wiring. Hold the Insulation Cover so that the cylindrical hole
is facing the Switch, and insert the lead wires from the end with the
barriers.
• After wiring is completed, mount the Insulation Cover by pushing it
into the Switch.
Insulation Cover attached to Switch
Switch terminal
Recess
Note: Do not use tools such as pliers to remove the Pushbutton as this may
damage the cap.
13
A3C
Mounting the Dust Cover
1. The Dust Cover separates into 2 parts: the cap and the mounting
frame.
2. Insert the Switch into the mounting frame. (Align the lock
projection with the recess on the mounting frame.)
3. Insert the Switch in the state described in step 2 into the panel.
(Align the lock protrusion on the mounting frame with the hole in
the panel.)
4. Mount the mounting nut from the back of the panel and tighten it.
5. Insert the cap into the mounting frame. Ensure that the entire
perimeter of the cap is properly inserted into the mounting frame
by pressing down on the cap from different directions.
Cap (transparent)
Mounting frame
Mounting nut
Panel
Switch
Lock protrusions
Mounting the Switch Guard
1. Insert the Switch into the Switch Guard.
2. Insert the Switch into the panel in the state described in step 1.
3. Mount the mounting nut from the back of the panel and tighten it.
Mounting nut
Panel
Holder (black)
Guard (transparent)
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad
systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious
influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and be sure to provide the system or equipment with double safety mechanisms.
Note: Do not use this document to operate the Unit.
OMRON Corporation
ELECTRONIC AND MECHANICAL COMPONENTS COMPANY
Contact: www.omron.com/ecb
Cat. No. A030-E1-05
0812(0207)(O)
14
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