Product Details Portlet

A3C Pushbutton Switch (Lighted/Non-Lighted) (Cylindrical 12-dia.)

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適合
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List of Models
Appearance Model
Rectangular
Models
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A3CJ
Square
Models
img
A3CA
Round
Models
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A3CT

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.

img img img

Lighted Pushbutton Switches (SPST-NO+SPST-NC Solder Terminals)
Contact type
Operation
Shape Lighting
Standard load Microload Pushbutton
color
symbol
Minimum packing unit
Momentary
operation
(Self-resetting)
Alternate
operation
(Self-holding)
Momentary
operation
(Self-resetting)
Rectangular
( A3CJ)
LED lamp A3CJ-90A1-05E□ A3CJ-90B1-05E□ A3CJ-90E1-05E□ R: red
Y: yellow
G: green
W: white
10 pcs
A3CJ-90A1-12E□ A3CJ-90B1-12E□ A3CJ-90E1-12E□
A3CJ-90A1-24E□ A3CJ-90B1-24E□ A3CJ-90E1-24E□
Incandescent
lamp
A3CJ-90A1-06□ --- R: red
Y: yellow
G: green
W: white
A: blue
B: black(See note 3.)
A3CJ-90A1-14□
A3CJ-90A1-28□
Non-lighted A3CJ-90A0-□ A3CJ-90B0-□ A3CJ-90E0-□
Square
( A3CA)
LED lamp A3CA-90A1-05E□ A3CA-90B1-05E□ A3CA-90E1-05E□ R: red
Y: yellow
G: green
W: white
A3CA-90A1-12E□ A3CA-90B1-12E□ A3CA-90E1-12E□
A3CA-90A1-24E□ A3CA-90B1-24E□ A3CA-90E1-24E□
Incandescent
lamp
A3CA-90A1-06□ --- R: red
Y: yellow
G: green
W: white
A: blue
B: black(See note 3.)
A3CA-90A1-14□
A3CA-90A1-28□
Non-lighted A3CA-90A0-□ A3CA-90B0-□ A3CA-90E0-□
Round
( A3CT)
LED lamp A3CT-90A1-05E□ A3CT-90B1-05E□ A3CT-90E1-05E□ R: red
Y: yellow
G: green
W: white
A3CT-90A1-12E□ A3CT-90B1-12E□ A3CT-90E1-12E□
A3CT-90A1-24E□ A3CT-90B1-24E□ A3CT-90E1-24E□
Incandescent
lamp
A3CT-90A1-06□ --- R: red
Y: yellow
G: green
W: white
A: blue
B: black(See note 3.)
A3CT-90A1-14□
A3CT-90A1-28□
Non-lighted A3CT-90A0-□ A3CT-90B0-□ A3CT-90E0-□
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.
  3. Black (“B”) Pushbuttons are only available for non-lighted models.

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


"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


Ordering: With colored-illumination models, order the Pushbutton, Lamp, and Switch as shown in the following table.
Illuminated color Pushbutton Lamp (LED) Switch
Red IP40
A3C□-500W
Enter one of the following symbols
in □.
J: Rectangular
A: Square
T: Round
A16-□DR 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.
Yellow A16-□DY
Green A16-□DG

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.


Pushbuttons
LED Lamp
Button
color
img img img
Red A3CJ-500R A3CA-500R A3CT-500R
Yellow A3CJ-500Y A3CA-500Y A3CT-500Y
Green A3CJ-500GY A3CA-500GY A3CT-500GY
White A3CJ-500W A3CA-500W A3CT-500W
Minimum
packing unit
50 pcs

Non-lighted Models
Button
color
img img img
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
Black A3CJ-501B A3CA-501B A3CT-501B
Minimum
packing unit
50 pcs
Note: 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
img img img
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
Minimum
packing unit
50 pcs

Lamps
LED Lamp
Color Rated voltage
5 VDC 12 VDC 24 VDC
Red A16-5DR A16-12DR A16-24DR
Yellow A16-5DY A16-12DY A16-24DY
Green A16-5DG A16-12DG A16-24DG
White A16-5DW A16-12DW A16-24DW
Minimum
packing unit
100 pcs

Incandescent Lamp
Rated voltage 6 VAC/VDC 14 VAC/VDC 28 VAC/VDC
Model A16-5 A16-12 A16-24
Minimum
packing unit
100 pcs

Switches
Configuration Contact Switch action Terminal Degree of protection: IP40
img img img
Standard SPST-NO+
SPST NC
Momentary Solder A3CJ-7011 A3CA-7011 A3CT-7011
Alternate A3CJ-7021 A3CA-7021 A3CT-7021
Microload Momentary A3CJ-7111 A3CA-7111 A3CT-7111
Alternate A3CJ-7121 A3CA-7121 A3CT-7121
Minimum packing unit
10 pcs
Specifications
Contact 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
(See note 1.)
0.1 A at 125 VAC 0.1 A at 30 VDC
Note: 1.
Minimum allowable load: 5 VDC 1 mA (Resistive)
  2. The ratings given above are for testing under the following conditions:
1) Ambient temperature: 20 ± 2°C
2) Ambient humidity: 65 ± 5%RH
3) Operation frequency: 20 times/minute
LED Lamp Ratings
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 Ratings
Rated voltage Rated current Operating voltage
6 VAC/VDC 60 mA 5 VAC/VDC
14 VAC/VDC 40 mA 12 VAC/VDC
28 VAC/VDC 24 mA 24 VAC/VDC

Characteristics
Operating frequency Mechanical:
Momentary-action models: 120 operations/minute max.
Alternate-action models: 60 operations/minute max. (See note 1.)
Electrical: 20 operations/minute max.
Contact resistance (initial value) Standard load 50mΩ max.
Microload 100mΩ max.
Insulation resistance 100 MΩ min. (at 500 VDC with insulation tester)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 minute between terminals of same polarity and between lamp terminals (See note 2.) 2,000 VAC, 50/60 Hz for 1 minute between terminals of different polarity and also between each terminal and ground
Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude (No malfunctions for more than 1 s.)
Shock resistance Destruction: 500 m/s2 max.
Malfunction: 150 m/s2 max. *3
Durability Mechanical:
Momentary-action models: 1,000,000 operations min.
Alternate-action models: 100,000 operations min. (See note 1.)
Electrical: 100,000 operations min.
Weight Approx. 5 g (See note 3.)
Ambient operating temperature −10°C to 55°C (with no icing or condensation)
Ambient operating humidity 35% to 85%
Ambient storage temperature –25°C to 65°C
Degree of protection IEC IP40
Electric shock protection class Class II
PTI (proof tracking index) 175
Pollution degree 3 (IEC947-5-1)
Note: 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. The weight indicated here applies to the lighted models (SPST-NO+SPST-NC).
Operating Characteristics
OF max. 2.45 N
RF min. 0.29 N
TT Approx. 3.5 mm
LTA min.
(See note.)
0.5 mm
PT max. 2.5 mm
Note:
The value for LTA min. applies to alternate-operation models only.
Dimensions
(Unit: mm)
Rectangular Models
A3CJ

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Square Models
A3CJ
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Round Models
A3CJ
img


Panel Cutout (Top View)
Accessories used Rectangular/A3CJ Square/A3CA, Round/A3CT
Switch only img img
With Switch Guard img img
With Dust Cover img ---
Note:
If the panel is to be finished (e.g., coated), make sure that the panel meets the specified dimensions after the coating.
Terminal Connections
Terminal Type
SPST-NO+SPST-NC
Solder terminal img

Correct Use

●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. (Tighten- ing torque: 0.20 to 0.39 N·m)

●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.
①Hand soldering: At 30 W within 5 seconds.
②Dip soldering: At 240℃ 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℃ min. ·After wiring to the Switch has been completed, ensure an appropri- ate insulation distance.

●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 malfunc- tion.

●Using Microloads

sing 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 mi- croload 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 expec- tancy. Therefore, insert a contact protection circuit where neces- sary. 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 104/times indicates that the estimated malfunction rate is less than 1/2,000,000 with a reliability level of 60%.

●LED

Resistance to limit the LED current is provided internally and so an external resistance is not required.