New Product
Plateau Head Pushbutton Switch
A3U
Easy connector enables less assembly and less wiring
• Highly reliable Major Omron basic switch, SS model built in.
• Possible cross over wiring on circuit construction.
• Easy one push to connect the Operation and Switch Units.
• 22 dia of the push button head size is suitable for operation.
Model Number Structure
Model Number Legend....For information on combinations, refer to Ordering Information.
(4) Voltage Used (LED)
( )
( ) ( ) ( )
( )
( )
6
1
2
3
4
5
A3U -T
- A C- M
Symbol
Operating Voltage
No symbol
Non-lighted
5 VDC
12 VDC
24 VDC
(1) Lighted/Non-lighted
(3) Color of Pushbutton and Light
1
2
3
Symbol
No symbol
L
Type
Non-lighted
Lighted
Lighted
Non-Lighted
(Cap type/Color)
Non-Transparent Cap/White
Transparent Cap/White
Transparent Cap/Red
Symbol
Color
(Cap type/Color)
Transparent Cap/White
−
W
S
R
Y
G
U
A
B
K
White
White
Red
(5) Contact Configuration
Transparent Cap/Red
(2) Flange Color
Symbol
Type
SPDT
DPDT
Yellow Transparent Cap/Yellow Transparent Cap/Yellow
Green
Umber Transparent Cap/White
Blue
Black
Black
1
2
Symbol
Color
Black
Metallic
Transparent Cap/Green
Transparent Cap/Green
B
M
−
(6) Degree of Protection
Transparent Cap/Blue
Transparent Cap/Blue
Non-Transparent Cap/Black
Transparent Cap/Black
−
−
Symbol
None
5
Protection
IP40
IP65 (Oil-proof type)
Ordering Information
Plateau Head Pushbutton Switches
Degree of Protection : IP40
Flange Color: Black
Flange Color: Metallic
LED
Voltage
@Pushbutton
color symbol
LED
Lighting Output
Voltage
@Pushbutton
color symbol
Lighting Output
Model
Model
5 VDC A3UL-TB@-1A1C-M
12 VDC A3UL-TB@-2A1C-M
24 VDC A3UL-TB@-3A1C-M
5 VDC A3UL-TB@-1A2C-M
12 VDC A3UL-TB@-2A2C-M
24 VDC A3UL-TB@-3A2C-M
5 VDC A3UL-TBG-1A1C-M
12 VDC A3UL-TBG-2A1C-M
24 VDC A3UL-TBG-3A1C-M
5 VDC A3UL-TBU-1A1C-M-S
12 VDC A3UL-TBU-2A1C-M-S
24 VDC A3UL-TBU-3A1C-M-S
5 VDC A3UL-TBG-1A2C-M
12 VDC A3UL-TBG-2A2C-M
24 VDC A3UL-TBG-3A2C-M
5 VDC A3UL-TBU-1A2C-M-S
12 VDC A3UL-TBU-2A2C-M-S
24 VDC A3UL-TBU-3A2C-M-S
5 VDC A3UL-TB@-1A1C-M
12 VDC A3UL-TB@-2A1C-M
24 VDC A3UL-TB@-3A1C-M
5 VDC A3UL-TB@-1A2C-M
12 VDC A3UL-TB@-2A2C-M
24 VDC A3UL-TB@-3A2C-M
5 VDC A3UL-TM@-1A1C-M
SPDT 12 VDC A3UL-TM@-2A1C-M
24 VDC A3UL-TM@-3A1C-M
5 VDC A3UL-TM@-1A2C-M
DPDT 12 VDC A3UL-TM@-2A2C-M
24 VDC A3UL-TM@-3A2C-M
SPDT
W, A
W, A
DPDT
5 VDC A3UL-TMG-1A1C-M
12 VDC A3UL-TMG-2A1C-M
G
U
G
U
G
U
G
U
24 VDC A3UL-TMG-3A1C-M
SPDT
SPDT
5 VDC A3UL-TMU-1A1C-M-S
12 VDC A3UL-TMU-2A1C-M-S
24 VDC A3UL-TMU-3A1C-M-S
5 VDC A3UL-TMG-1A2C-M
12 VDC A3UL-TMG-2A2C-M
LED
LED
24 VDC A3UL-TMG-3A2C-M
DPDT
DPDT
5 VDC A3UL-TMU-1A2C-M-S
12 VDC A3UL-TMU-2A2C-M-S
24 VDC A3UL-TMU-3A2C-M-S
5 VDC A3UL-TM@-1A1C-M
SPDT
DPDT
SPDT 12 VDC A3UL-TM@-2A1C-M
24 VDC A3UL-TM@-3A1C-M
5 VDC A3UL-TM@-1A2C-M
DPDT 12 VDC A3UL-TM@-2A2C-M
24 VDC A3UL-TM@-3A2C-M
R, Y
R, Y
SPDT
DPDT
−
−
A3U-TB@-A1C-M
A3U-TB@-A2C-M
SPDT
−
−
A3U-TM@-A1C-M
A3U-TM@-A2C-M
Non-
lighted
W, S, R, Y,
G, A, B, K
Non-
lighted
W, S, R, Y,
G, A, B, K
DPDT
1