Pushbutton Switch (Detachable) (Lighted/Non-Lighted) (Cylindrical 16-dia.)
A16
CSM_A16_DS_E_11_2
Separate Construction with
Cylindrical 16-dia. Body
Miniature design of 28.5 mm, the smallest class in the industry.
Detachable Switch.
The same contacts can be used for both standard loads and
microloads.
Easy-to-wire terminal arrangement.
Certified for EN 60947-5-1.
Refer to Safety Precautions for All Pushbutton Switches/
Indicators and Safety Precautions on page 24.
List of Models
Model
Rectangular Square Round
Solder
terminals
A16@-J Series A16@-A Series A16@-T Series
PCB
terminals
A16@-J Series A16@-A Series A16@-T Series
Voltage-reduction
lighting solder
A16@-J Series A16@-A Series A16@-T Series
terminals
Screw-less clamp
models
A16@-J Series A16@-A Series A16@-T Series
The button colors when the buttons are lit and when they are not lit are shown below. Use these colors as reference only.
Button Colors
The actual colors may vary.
When not lit
When lit
R Y PY G W A PW B
(Red) (Yellow) (Pure yellow) (Green) (White) (Blue) (Pure white) (Black)
1A16
Model Number Structure
Model Number Legend ..... The model numbers used to order sets of Units are illustrated below. One set comprises the Pushbutton, Lamp
(lighted models only), Case, and Switch. For information on combinations, refer to Ordering Information on
pages 3 to 7.
(1) (2) (3) (4) (5) (6) (7)
A16 5 L - J R M - 24D - 2
(1) Degree of Protection
(7) Contact Configuration
Symbol Protection
Symbol Type Terminal
No symbol IP40
1 SPDT
Solder Terminal
Oil-resistant
5 2DPDT
IP66
1P SPDT
PCB Terminal
(2) Lighted/Non-lighted
2P DPDT
Symbol Type
2S DPDT Screw-less Clamp
No symbol Non-lighted
Only DPDT contacts are available with Screw-
Less Clamp.
L Lighted
Consult your OMRON representative
(3) Shape of Pushbutton
concerning pricing and delivery timing for PCB
terminals and screw-less clamp connectors.
Symbol Shape
(6) Light Source
Rectan-
J 2-way guard
gular
(5) Switch Operation
Operating Rated
Symbol Type
A Square 2-way guard voltage voltage
Symbol Operation
(4) Color of Pushbutton
Projecting No symbol Non-lighted
T Round
M Momentary
model
Symbol Color
5 5 VAC/VDC 6 VAC/VDC
Incan-
A Alternate
RRed
12 descent 12 VAC/VDC 14 VAC/VDC
Momentary-operation:
lamp
YYellow
24 24 VAC/VDC 28 VAC/VDC
Self-resetting
PY Pure yellow
5D 5 5% VDC 5 VDC
Alternate-operation:
G Green
12 5%
Self-holding
12D 12 VAC/VDC
WWhite LED VAC/VDC
24 5%
ABlue
Colored Illumination
24D 24 VAC/VDC
VAC/VDC
PW Pure white
Unlit Lit
Voltage Reduction Unit (24-V Built-in LED)
Black (non-lighted
White Color
B
models only)
Operating Rated
The built-in
Symbol Type
Color illuminated models are also
voltage voltage
LED is colored.
available (see page 8).
100 to 110 100/110
Order the parts separately.
T1
VAC/VDC VAC/VDC
LED
200 to 220 200/220
T2
VAC/VDC VAC/VDC
Solder terminals are available only with 100-V models.
The Voltage Reduction Unit is not available for models with
PCB terminals.
T2 is available only for the Screw-less Clamp type.
2