Pushbutton Switch
A16
Mounting Aperture of 16 mm
• Modular construction
(Pushbutton + Case + Lamp + Switch)
• Wide Variety of Control and Signal Devices: Lighted, Non-Light-
ed, and Buzzer
• UL and cUL approved.
• Conforms to EN60947-5-1, IEC947-5-1
• Quick and easy assembly, snap-in Switch.
• Wide range of switching capacity from standard to microload
• High reliability, IP65
• Short mounting depth, less than 28.5 mm below panel
Model Number Structure
■ Model Number Legend
Completely Assembled
The model numbers used to order sets of Units are illustrated below. One set comprises the Pushbutton, Lamp (lighted models only), Case, and
Switch.
A 1 6 5 L - J R M - 24D - 2
(1) Degree of Protection
Symbol
Protection
No symbol
IP40
5
IP65 oil-resistant
(2) Lighted/Non-lighted
Symbol
Type
No symbol
Non-lighted
L
Lighted
(3) Shape of Pushbutton
Symbol
Shape
J
Rectangular 2-way guard
A
Square
2-way guard
T
Round
Projecting model
3J
Rectangular 3-way guard
BA
Square
24-mm square
(1)
(2)
(3)
(4)
(5)
(5) Switch Operation
(4) Color of Pushbutton
Symbol
Color
R
Red
Y
Yellow
Momentary-action: Self-resetting
PY
Pure yellow
Alternate-action: Self-holding
G
Green
W
White
A
Blue
B
Black (non-lighted
models only)
"Colored-illumination" models
operate in the way shown below:
Unlit
Lit
Color
White
The built-in LED
is colored.
(6)
(7)
(6) Light Source
Symbol
Symbol
Operation
No symbol
M
Momentary
5
A
Alternate
12
24
5D
12D
24D
Voltage Reduction Unit (24-V Built-in LED)
Symbol
T1
T2
Note: 1. Solder terminals are available only with 100-V
2. The Voltage Reduction Unit is not available for
(7) Contact Configuration
Symbol
Type
Terminal
1
SPDT
Solder
Terminal
2
DPDT
1P
SPDT
PCB
Terminal
2P
DPDT
2S
DPDT
Screw-Less
Clamp
Only DPDT contacts are available
with Screw-Less Clamp.
Operating
Rated
Type
voltage
voltage
Non-lighted
5 VAC/VDC
6 VAC/VDC
Incandescent
12 VAC/VDC
14 VAC/VDC
lamp
24 VAC/VDC
28 VAC/VDC
5 5% VDC
5 VDC
LED
12 5% VDC
12 VDC
24 5% VDC
24 VDC
Rated
Type
Operating voltage
voltage
90 to 121 VAC/VDC
110 VAC
LED
180 to 242 VAC/VDC
220 VAC
models.
models with PCB terminals.
A16
Pushbutton Switch
G-5