Lighted Pushbutton Switch
Cylindrical 12-dia. Series with Superb
Operability, High Visibility, and Compact
Housing
Three models of pushbutton units (round, square,
and rectangular), two types of light-emitting
elements (LED and lamp), and two types of switch
units (switching general-purpose and microcurrent/
voltage loads) 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 LEDs, lamps, lenses, and legends replaceable
without tools
UL (E41515) and CSA (LR45258-31) approved
A3C
Ordering Information
Lighted Type
When placing your order, specify the individual component part model numbers of the pushbutton unit, LED, lamp, and switch unit, as listed in
the ordering tables below.
Non-lighted Type
When placing your order, specify the model numbers of the pushbutton and switch units.
Pushbutton Unit
Switch Unit
A3Cj-501j
A3Cjj-7jjj
1
A3C
Lighted Pushbutton Unit
LED
Button color
Rectangular
Square
Round
Non-lighted Type
Button color
Rectangular
Square
A3C
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-500B
A3CA-500R
A3CA-500Y
A3CA-500G
A3CA-500W
A3CA-500A
A3CA-500B
A3CT-500R
A3CT-500Y
A3CT-500G
A3CT-500W
A3CT-500A
A3CT-500B
With the exception of green, all pushbutton units can be
used with either LED or incandescent lamps. Since the hue
of green changes with an incandescent light source, use
the green LED light source listed elsewhere.
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
Indicator (Same as A3B)
LED
Color
5 VDC
Red
Yellow
Green
White
Incandescent Lamp
Rated voltage
Model
A3B-006
6 VDC
A3B-014
14 VDC
A3B-028
28 VDC
A3B-005R
A3B-005Y
A3B-005G
A3B-005W
A3B-012R
A3B-012Y
A3B-012G
A3B-012W
Rated voltage
12 VDC
A3B-024R
A3B-024Y
A3B-024G
A3B-024W
24 VDC
Switch Unit
Configuration
g
Contact
Switch action
Terminal
Degree of protection: IP00
Rectangular
Square
Round
General
purpose
Micro-load
SPST-NO+
SPST-NC
SPST NC
Momentary
Alternate
Momentary
y
Alternate
Solder
Solder
PCB
Solder
PCB
Solder
PCB
A3CJ-7011
A3CJ-7021
A3CJ-7111
A3CJ-7112
A3CJ-7121
A3CJ-7122
M2CJ-7001
M2CJ-7002
A3CA-7011
A3CA-7021
A3CA-7111
A3CA-7112
A3CA-7121
A3CA-7122
M2CA-7001
M2CA-7002
A3CT-7011
A3CT-7021
A3CT-7111
A3CT-7112
A3CT-7121
A3CT-7122
M2CT-7001
M2CT-7002
For indication only (no switch)
y(
)
2
A3C
A3C
Specifications
Contact Ratings
Model
General-purpose
load
Micro
current/voltage
load (see note)
Note:
0.5 A, 250 VAC
1 A, 125 VAC
0.1 A, 125 VAC
Item
AC resistive load
DC resistive load
1 A, 30 VDC
0.1 A, 30 VDC
Applicable Load Range
The minimum permissible load is 1 mA, 5 VDC.
LED 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%
Lamp Ratings
Rated voltage
6V
14 V
28 V
Rated current
60 mA
40 mA
24 mA
Operating voltage
5V
12 V
24 V
Characteristics
Operating frequency
Mechanical:
Momentary-action type: 120 operations per minute max.
Alternate-action type: 60 operations per minute max.
Electrical: 20 operations per minute max.
100 M" min. (at 500 VDC)
1,000 VAC, 50/60 Hz for 1 minute between terminals of same polarity
2,000 VAC, 50/60 Hz for 1 minute between terminals of different polarity and also between
each terminal and ground
Vibration Mechanical/malfunction durability: 10 to 55 Hz, 1.5 mm double amplitude
Mechanical durability: 500 m/s
2
(approx. 50 G)
Malfunction durability: 150 m/s
2
(approx. 15 G)
Operating: --10#C to 55#C
35 to 85% RH
Mechanical:
Momentary-action type: 1,000,000 operations min.
Alternate-action type: 100,000 operations min.
Electrical: 100,000 operations min.
Approx. 5 g (see note)
Insulation resistance
Dielectric strength
Shock
Ambient temperature
Humidity
Life expectancy
Weight
Note:
The weight indicated here applies to the lighted type (SPST-NO+SPST-NC).
Microcurrent/Voltage Load
Operating Characteristics
0.1 A, 125 VAC
250 g
OF max.
0.1 A, 30 VDC
30 g
RF min.
TT
LTA min.
PT max.
3.5!0.5 mm
0.5 mm
2.5 mm
Approved by Standards
UL (File No. E41515)
CSA (File No. LR45258-31)
Rating
General-purpose Type
1 A, 125 VAC
0.5 A, 250 VAC
1 A, 30 VDC
3
A3C
A3C
Dimensions
The following dimensions apply to the switch unit with SPST-NO+SPST-NC contact configuration, with solder terminals.
Rectangular
A3CJ
Panel cutout
Square
A3CA
Panel cutout
15 min.
Round
A3CT
Legend Plate
A3CJ
A3CA
A3CT
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 acryl paint when
marking the legend.
4
A3C
A3C
Terminals/Connections
Terminal
SPST-NO+SPST-NC
Solder terminal
Lighted type, non-lighted type
Indicator
Type
For indication
Terminal hole
(bottom view)
Terminal hole
(bottom view)
PCB terminal
Lighted type, non-lighted type
Indicator
6.1
Mounting hole
(bottom view)
(bottom view)
Mounting hole
(bottom view)
(bottom view)
5
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