Lighted Pushbutton Switch
Cylindrical 12-dia. Series with Superb
Operability, High Visibility, and Compact
Housing
Three models of Pushbuttons (round, square, and
rectangular), two types of light-emitting elements
(LED lamp and incandescent lamp), and two types
of Switches (switching standard loads and
microloads) available.
Models that can be used as an indicator also
available.
Requires only 20 mm mounting depth
Efficiency in wiring improved by terminals arranged
on the same surface.
All LED lamps, incandescent lamps, caps, and
legends replaceable without tools.
UL (E41515) and CSA (LR45258) approved.
A3C
RC
Ordering Information
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.
(1)
(2)
(3)
(4)
(5)
(6)
A 3 C J - 9 0 A 1 - 24E R
(1) Shape of Pushbutton (2) Terminal Type
Symbol
J
A
T
Shape
Rectangular
Square
Round
Symbol
0
Type
Solder terminal
(3) Switch Specifications
Standard Load
Symbol
A
B
Microload
Symbol
E
F
Operation
Momentary
Alternate
SPDT
Operation
Momentary
Alternate
SPDT
(4) Lighted/Non-lighted
Symbol
0
1
Type
Non-lighted
Illumination only
(5) Lighting Method
LED Lamp-lighted Models
Symbol
05E
12E
24E
Operating voltage
5 VDC
12 VDC
24 VDC
(6) Color of Pushbutton
For LED Lamp
Symbol
R
Y
G
W
Color
Red
Yellow
Green
White
PCB terminals are also avail-
able. Refer to the
Switch
table
on page 37.
Colored-illumination models
are also available. Refer to
page 36.
“Colored-illumination” models
operate in the way shown
below:
Unlit
White
Lit
Color
The built-in LED
is colored.
Incandescent Lamp-
lighted Models
Symbol
06
14
28
Operating voltage
5 VAC/VDC
12 VAC/VDC
24 VAC/VDC
For Incandescent Lamp
Symbol
R
Y
G
A
W
Color
Red
Yellow
Green
Blue
White
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
Non-lighted Models
No symbol
For Non-lighted Models
Symbol
R
Y
G
W
A
B
Color
Red
Yellow
Green
White
Blue
Black
34
A3C
Ordering as a Set
A3C
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.
Rectangular Models
Square Models
Round Models
A3CJ
A3CA
A3CT
Lighted Pushbutton Switches (SPST-NO+SPST-NC Solder Terminals)
Contact type
yp
Operation
Shape
Rectangular (A3CJ)
g
(
)
Lighting
LED lamp
p
Standard load
Momentary
operation
(Self-resetting)
A3CJ-90A1-05Ej
A3CJ-90A1-12Ej
A3CJ-90A1-24Ej
Incandescent lamp
A3CJ-90A1-06j
A3CJ-90A1-14j
A3CJ-90A1-28j
Non-lighted
Square (A3CA)
q
(
)
LED lamp
p
A3CJ-90A0-j
A3CA-90A1-05Ej
A3CA-90A1-12Ej
A3CA-90A1-24Ej
Incandescent lamp
A3CA-90A1-06j
A3CA-90A1-14j
A3CA-90A1-28j
Non-lighted
Round (A3CT)
(
)
LED lamp
p
A3CA-90A0-j
A3CT-90A1-05Ej
A3CT-90A1-12Ej
A3CT-90A1-24Ej
Incandescent lamp
A3CT-90A1-06j
A3CT-90A1-14j
A3CT-90A1-28j
Non-lighted
Note:
A3CT-90A0-j
A3CT-90B0-j
A3CT-90E0-j
A3CA-90B0-j
A3CT-90B1-05Ej
A3CT-90B1-12Ej
A3CT-90B1-24Ej
---
A3CA-90E0-j
A3CT-90E1-05Ej
A3CT-90E1-12Ej
A3CT-90E1-24Ej
A3CJ-90B0-j
A3CA-90B1-05Ej
A3CA-90B1-12Ej
A3CA-90B1-24Ej
---
A3CJ-90E0-j
A3CA-90E1-05Ej
A3CA-90E1-12Ej
A3CA-90E1-24Ej
Alternate
operation
(Self-holding)
A3CJ-90B1-05Ej
A3CJ-90B1-12Ej
A3CJ-90B1-24Ej
---
Microload
Momentary
operation
(Self-resetting)
A3CJ-90E1-05Ej
A3CJ-90E1-12Ej
A3CJ-90E1-24Ej
Pushbutton color
symbol
R: red
Y: ello
Y yellow
G: green
W: white
R: red
Y: yellow
G: green
W: white
A: blue
B: black (See note 3.)
R: red
Y: ello
Y yellow
G: green
W: white
R: red
Y: yellow
G: green
W: white
A: blue
B: black (See note 3.)
R: red
Y: ello
Y yellow
G: green
W: white
R: red
Y: yellow
G: green
W: white
A: blue
B: black (See note 3.)
1. Enter the desired color symbol for the Pushbutton in the
j
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 37.
3. Black (“B”) Pushbuttons are only available for non-lighted models.
35
A3C
Illumination-only and Colored-illumination LED Models
A3C
“Illumination only” describes LED models for which the screen color is the same whether the LED is lit or not. The screen simply becomes
brighter when the LED lights.
Example: Red LED
Not lit
Red
Legend plate (milky white)
Lit
Reflective plunger
Red
Pushbutton
Cap (red)
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
Legend plate (milky white)
Lit
Reflective plunger
Red
Pushbutton
White cap (semi-transparent)
LED lamp (red)
Lamp
Ordering: With colored-illumination models, order the Pushbutton, Lamp, and Switch as shown in the following table.
Illuminated color
Red
Yellow
Green
Pushbutton
IP40
A3Cj-500W
Enter one of the
following symbols in
j.
J: Rectangular
A: Square
T: Round
A16-jDR
A16-jDY
A16-jDG
Lamp (LED)
Enter one of the
following symbols in
j.
5: 5 VDC
12: 12 VDC
24: 24 VDC
Switch
Refer to the following
information. Order the
Switch that is
appropriate for the
Pushbutton.
36
A3C
Ordering Individually
A3C
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
Button color
Rectangular
Square
Round
Non-lighted Models
Button color
Rectangular
Square
Round
Red
Yellow
Green
White
Note:
A3CJ-500R
A3CJ-500Y
A3CJ-500GY
A3CJ-500W
A3CA-500R
A3CA-500Y
A3CA-500GY
A3CA-500W
A3CT-500R
A3CT-500Y
A3CT-500GY
A3CT-500W
Red
Yellow
Green
White
Blue
Black
A3CJ-500R
A3CJ-500Y
A3CJ-500G
A3CJ-500W
A3CJ-500A
A3CJ-501B
A3CA-500R
A3CA-500Y
A3CA-500G
A3CA-500W
A3CA-500A
A3CA-501B
A3CT-500R
A3CT-500Y
A3CT-500G
A3CT-500W
A3CT-500A
A3CT-501B
The red, yellow, and white Pushbuttons listed above can be
used with either LED lamp-lighted models or incandescent
lamp-lighted models.
Incandescent Lamp
Button color
Rectangular
Square
Round
Red
Yellow
Green
White
Blue
A3CJ-500R
A3CJ-500Y
A3CJ-500G
A3CJ-500W
A3CJ-500A
A3CA-500R
A3CA-500Y
A3CA-500G
A3CA-500W
A3CA-500A
A3CT-500R
A3CT-500Y
A3CT-500G
A3CT-500W
A3CT-500A
Lamps
LED Lamp
Color
5 VDC
Red
Yellow
Green
White
Incandescent Lamp
Rated voltage
Model
A16-5
6 VAC/VDC
A16-12
14 VAC/VDC
A16-24
28 VAC/VDC
A16-5DR
A16-5DY
A16-5DG
A16-5DW
A16-12DR
A16-12DY
A16-12DG
A16-12DW
Rated voltage
12 VDC
A16-24DR
A16-24DY
A16-24DG
A16-24DW
24 VDC
Switches
Configuration
g
Contact
Switch action
Terminal
Degree of protection: IP40
Rectangular
Square
Round
Standard
Microload
SPST-NO+
SPST-NC
SPST NC
Momentary
Alternate
Momentary
Alternate
Solder
A3CJ-7011
A3CJ-7021
A3CJ-7111
A3CJ-7121
A3CA-7011
A3CA-7021
A3CA-7111
A3CA-7121
A3CT-7011
A3CT-7021
A3CT-7111
A3CT-7121
37
A3C
A3C
Accessories (Order Separately)
Name
Socket
Appearance
Classification
Wire-wrap terminal
Model
A3C-4101
Remarks
Cannot be used with Insulation Cover.
PCB terminal
Solder terminal
Insulation
Cover
---
A3C-4102
A3C-4103
A3C-3002
Cannot be used with Socket.
Switch
Guard
For rectangular models
For square, round models
A3CJ-5050
A3CA-5050
A3CJ-5060
Cannot be used with Dust Cover.
Dust Cover
For rectangular models
Cannot be used with Switch Guard.
Tightening
Tool
Extractor
---
A3C-3004
The tightening torque is 0.20 to
0.39 N⋅m.
---
---
A3PJ-5080
Legend
Plate
For rectangular models
For square models
For round models
A3CJ-5201
A3CA-5201
A3CT-5201
One Legend Plate is supplied per
standard Switch.
Specifications
Contact Ratings
Model
Standard load
Microload
(See note 1.)
Note:
0.5 A at 250 VAC
1 A at 125 VAC
0.1 A at 125 VAC
Item
AC resistive load
DC resistive load
1 A at 30 VDC
0.1 A at 30 VDC
LED Lamp Ratings
Rated
voltage
5 VDC
12 VDC
24 VDC
Rated
current
30 mA
15 mA
10 mA
Operating
voltage
5 VDC±5%
12 VDC±5%
24 VDC±5%
Internal
limiting
resistance
33
Ω
270
Ω
1,600
Ω
1. The minimum permissible load is 1 mA, 5 VDC.
2. 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
Incandescent Lamp Ratings
Rated voltage
6 VAC/VDC
14 VAC/VDC
28 VAC/VDC
Rated current
60 mA
40 mA
24 mA
Operating voltage
5 VAC/VDC
12 VAC/VDC
24 VAC/VDC
38
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