1
M
2
C
M2C
Indicator (Cylindrical 12-dia.)
Indicator with Cylindrical 20-mm ×
12-dia. Body
• Same basic design as the A3C Pushbutton Switch.
• Good illumination with even surface brightness.
• Cylindrical body means panel cutouts can be made easily.
List of Models
Model Number Legend ..................................................The model numbers used to order sets of Units are illustrated below. One set
comprises the Display, Lamp, and Socket Unit.
For information on combinations, refer to Ordering Information
RoHS Compliant
Appearance Model
Rectangular M2CJ
Square M2CA
Round M2CT
Refer to Safety Precautions for All Pushbutton Switches/Indicators
and Safety Precautions for the A3C.
(1) (2) (3) (4) (5)
M 2 C J - 9 0 A 1 - 24E R
(3) Lighting Type (4) Lighting Method
LED lamp-lighted Models
Incandescent Lamp-
lighted Models
(5) Color of Display
For LED lamp
For incandescent
lamp
Symbol Lighting
type
1
Illumination only
Symbol Operating
voltage
05E 5 VDC
12E 12 VDC
24E 24 VDC
Symbol Operating
voltage
06 5 VAC/VDC
14 12 VAC/VDC
28 24 VAC/VDC
Symbol Color
RRed
Y
Yellow
G
Green
W
White
Symbol Color
RRed
Y
Yellow
G
Green
A
Blue
W
White
(1) Shape of Display
Symbol Shape
J Rectangular
A Square
T Round
(2) Terminal Type
Symbol Terminal type
A Solder terminals
2
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
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 Display, Lamp, and Socket Unit.
Solder Terminals
Note: Enter the desired color symbol for the Display in the @ at the end of the model number.
Appearance Lighting Model number (for set) Display color
symbol
Minimum
packing unit
Rectangular
(M2CJ)
LED lamp
M2CJ-90A1-05E@R: red
Y: yellow
G: green
W: white
10 pcs
M2CJ-90A1-12E@
M2CJ-90A1-24E@
Incandescent
lamp
M2CJ-90A1-06@R: red
Y: yellow
G: green
W: white
A: blue
M2CJ-90A1-14@
M2CJ-90A1-28@
Square
(M2CA)
LED lamp
M2CA-90A1-05E@R: red
Y: yellow
G: green
W: white
M2CA-90A1-12E@
M2CA-90A1-24E@
Incandescent
lamp
M2CA-90A1-06@R: red
Y: yellow
G: green
W: white
A: blue
M2CA-90A1-14@
M2CA-90A1-28@
Round
(M2CT)
LED lamp
M2CT-90A1-05E@R: red
Y: yellow
G: green
W: white
M2CT-90A1-12E@
M2CT-90A1-24E@
Incandescent
lamp
M2CT-90A1-06@R: red
Y: yellow
G: green
W: white
A: blue
M2CT-90A1-14@
M2CT-90A1-28@
Rectangular
Models
Square
Models
Round
Models
Individual models: Refer to pages 4 to 5.
(The Display, Lamp, and Socket Unit can be ordered separately.)
■ Ratings: Refer to page 6. ■ Dimensions: Refer to page 7.
■ Accessories: Refer to the A3C.
3
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
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. The screen simply becomes brighter
when the LED lights.
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.
Ordering: With colored-illumination models, order the Display, Lamp, and Socket Unit as shown in the following table.
Illuminated color Display Lamp (LED) Socket Unit
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 5. Order the
Socket Unit that is appropri-
ate for the Display.
Yellow A16-@DY
Green A16-@DG
Cap (red)
Legend plate
(milky white)
Reflective plunger
LED lamp (red)…Lamp
Display
Not lit
Red
Lit
Red
White cap
(semi-transparent)
Legend plate
(milky white)
Reflective plunger
LED lamp (red)…Lamp
Display
Not lit
White
Lit
Red
4
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
Ordering Information
Ordering Individually ............... Displays, Lamps, and Socket Units 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.
Display
Rectangular Square Round
Lamp
LED Lamp Incandescent lamp
Socket Unit
Rectangular Square Round
Cap
Legend plate
Reflective
plunger
Ordering set combinations: Refer to page 2. ■ Ratings: Refer to page 6. ■ Dimensions: Refer to
page
7.
■ Accessories: Refer to the A3C.
5
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
Ordering Information
Ordering Individually................The Display, Lamp, and Socket Unit can be ordered separately. They can also be used as inventory for
maintenance parts.
Display (Lighted Models)
LED Lamp
Note: The red, yellow, and white Displays listed above can be used with either LED lamp-lighted models or incandescent lamp-lighted models.
Incandescent Lamp
Lamp
LED Lamp
Incandescent Lamp
Socket Unit
Appearance
Button color
Rectangular Square Round
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
Appearance
Button color
Rectangular Square Round
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
Color
Rated voltage Red Yellow Green White Minimum
packing unit
5 VDC A16-5DR A16-5DY A16-5DG A16-5DW
100 pcs
12 VDC A16-12DR A16-12DY A16-12DG A16-12DW
24 VDC A16-24DR A16-24DY A16-24DG A16-24DW
Rated voltage Model Minimum packing unit
6 VAC/DC A16-5
100 pcs14 VAC/DC A16-12
28 VAC/DC A16-24
Sealing IP40
Appearance
Terminal
Rectangular Square Round
Solder terminals M2CJ-7001 M2CA-7001 M2CT-7001
Minimum packing unit 10 pcs
6
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
Specifications
Ratings
LED Lamp
Incandescent Lamp Approved Standard Ratings
UL (File No. E41515), CSA (File No. LR45258)
LED: 24 VDC max.
Incandescent lamp: 1 W at 28 VAC/VDC
Note: Certification has been obtained for the Indicator.
For detailed information on individual products that have received
certification, consult your supplier.
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
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
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)
7
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
Dimensions (Unit: mm)
Note: Unless specified, there is a tolerance of ±0.4 mm for dimensions.
Terminal Connections
Panel Cutout (Top View)
•If the panel is to be finished (e.g., coated), make sure that the panel meets the specified dimensions after the coating.
Accessories, Replacements, and Tools
The accessories, replacements, and tools for the A3C Lighted Pushbutton Switch can also be used with the A3C. Refer to the A3C.
Safety Precautions
Refer to Safety Precautions for Pushbutton Switches/Indicators and Safety Precautions for the A3C.
Rectangular Models (M2CJ) Square Models (M2CA) Round Models (M2CT)
Solder terminal
Rectangular/M2CJ Square/M2CA, Round/M2CT
Indicator Unit only
Note: Recommended panel thickness: 1.0 to 3.2 mm. Note: Recommended panel thickness: 1.0 to 3.2 mm.
With Dust Cover ---
0.6
M12 × 1
20
1
6
9.5
9.5
26.5
18
15.7
14 11.8
14
11.8
14 11.8
0.6
M12 × 1
20
26.5
9.5
9.5
6
0.6
M12 × 1
20
26.5
11.8 dia.
9.5
9.5
6
14 dia.
6.5
1.6
Lamp terminal (t0.3)
0.80.8L−
L+
2
0.6
Terminal Hole
Dimensions
Terminal Arrangement
(bottom view)
19 min. 7.5±0.1 2 dia. (Lock hole)
5.5±0.1
15 min.
12 dia.
+0.2
0
12 dia.+0.2
0 15 min.
22.5 min. 7.5±0.1 2 dia.
5.5±0.1
19 min.
12 dia.
+0.2
0
■ Ratings: Refer to page 6. ■ Dimensions: Refer to this page.
8
M2C
Indicator (Cylindrical 12-dia.)
M
2
C
• 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.
Cat. No. A206-E1-02
1014(0207)(O)
Note: Do not use this document to operate the Unit.
OMRON Corporation
Electronic and Mechanical Components Company Contact: www.omron.com/ecb
