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1

A

3

A

A3A

Lighted Pushbutton Switch

Compact High-capacity 
Push-button Switch

Ideal for use as a high breaking capacity Power 

Switch.

Switches from micro load (minimum applicable load: 

5 VDC 1mA) to high capacity load.

List of Models

Model Number Structure

Model Number Legend (Ordering as a Set)......

RoHS Compliant

Refer to Safety Precautions for All Pushbutton Switches/Indicators 
and Safety Precautions on page 8.

Non-lighted Push-button Switches

Lighted Push-button Switches

Appearance

Model

Illumination

Appearance

Model

Square

A3AA-9

@

@

1-00

@

LED
surface 
illumination

Square

A3AA-9

@

@

1-00E

@

Round

A3AT-9

@

@

1-00

@

Round

A3AT-9

@

@

1-00E

@

The model numbers used to order sets of Units are illustrated below. 
One set comprises the Pushbutton (LED lamp built-in) and Switch.
For information on combinations, refer to Ordering Information.

A 3 A

A

- 9

0 K

1 -

00E R

(1) Shape of Pushbutton

(2) Terminal

(3) Switch Specifications

Symbol

Shape

A

Square

T

Round

Symbol

Type

0

Solder

1

PCB

Symbol

Operation

Contact type

A

Momentary

SPDT

3 A at 125 VAC,

2 A at 30 VDC

B

Alternate

K

Momentary

SPST-NO

6 A at 125 VAC,
2 A at 250 VAC,

4 A at 30 VDC

L

Alternate

(

)

(

)

(4) Illumination

Symbol

Operation

00

Non-lighted

00E

Surface illumination

(5) Pushbutton Color

1. Non-lighted Models

2. LED Surface 

Illumination Models

* The color is the same for both LED 

surface illumination models and 
non-lighted models (translucent).

Symbol

Pushbutton Color

L

Light gray

R

Red*

Y

Yellow*

G

Green*

A

Blue

B

Black

D

Dark gray

H

Gray

Symbol

Pushbutton Color

R

Red

Y

Yellow

G

Green

(1)

(2)

(3)

(5)

(4)

Specifications: Refer to page 3.

Dimensions: Refer to page 5. 

Accessories: Refer to page 2.

Содержание A3A Series

Страница 1: ...omprises the Pushbutton LED lamp built in and Switch For information on combinations refer to Ordering Information A 3 A A 9 0 K 1 00E R 1 Shape of Pushbutton 2 Terminal 3 Switch Specifications Symbol Shape A Square T Round Symbol Type 0 Solder 1 PCB Symbol Operation Contact type A Momentary SPDT 3 A at 125 VAC 2 A at 30 VDC B Alternate K Momentary SPST NO 6 A at 125 VAC 2 A at 250 VAC 4 A at 30 V...

Страница 2: ...e illumination A3AA 91L1 00E Round A3AT Solder Momentary Non lighted A3AT 90K1 00 LED surface illumination A3AT 90K1 00E Alternate Non lighted A3AT 90L1 00 LED surface illumination A3AT 90L1 00E PCB Momentary Non lighted A3AT 91K1 00 LED surface illumination A3AT 91K1 00E Alternate Non lighted A3AT 91L1 00 LED surface illumination A3AT 91L1 00E Appearance Terminal Operation Illumination Model Colo...

Страница 3: ... 2 1 Maximum value V 3 0 Forward current IF Maximum value mA 20 20 25 Permissible loss PD Maximum value mW 60 60 75 Reverse voltage VR Maximum value V 3 Operating force OF max 2 45 N Release force RF min 0 15 N Total travel TT Approx 2mm Pretravel PT max 1 5 mm Locktravel alternate LTA min 0 5 mm Operating frequency Mechanical Momentary action 120 operations minute max Alternate action 60 operatio...

Страница 4: ...erminals order them from your OMRON representative Refer to page 2 Pushbutton 1 Shape Square A3AA Switch 3 Ratings Standard load 1a 6 A at 125 VAC 2 A at 250 VAC 4 A at 30 VDC Standard load 1c 3 A at 125 VAC 2 A at 30 VDC Minimum applicable load 1 mA at 5 VDC resistive load 2 Terminals Solder terminal PCB terminal Round A3AT Diffusion sheet milky white 4 Color cap 5 Color Non lighted Model Red yel...

Страница 5: ...sions 12 7 15 2 8 9 dia Round push button Two t0 4 terminals 8 9 Square push button 1 7 18 12 5 3 5 1 1 7 3 5 12 5 1 18 Three t0 4 terminals Non lighted Model Square Pushbutton Round Pushbutton SPST NO SPDT 12 7 15 2 8 9 dia Round push button Two t0 4 terminals 8 9 Square push button 1 7 18 12 5 3 5 1 Two t0 3 LED terminals 1 7 3 5 12 5 1 18 Three t0 4 terminals Two t0 3 LED terminals LED Surface ...

Страница 6: ...with an illuminating push button Switch terminal t0 4 Terminal Arrangement BOTTOM VIEW Switch terminal t0 4 Lamp terminal t0 3 Non lighted Models PCB Dimensions BOTTOM VIEW LED Surface Illumination Models 0 5 0 8 2 0 5 0 8 2 0 8 1 7 1 3 5 0 8 1 7 1 3 5 1 95 5 7 10 16 LED terminal L NC NO C L Non lighted Models Terminal Hole Dimensions Switch terminal t0 4 LED Surface Illumination Models Switch ter...

Страница 7: ... A3A 24 Flange Round A3A 25 Square Pushbutton For Side by side Mounting Panel Mounting Dimensions Round Pushbutton 11 5 dia 11 5 dia 11 5 dia 0 2 0 Square pushbutton Round pushbutton Horizontal multiple mounting Vertical multiple mounting 11 5 0 2 0 15 3 min 3 8 min 11 5 0 2 0 11 5 0 2 0 0 3 0 12 7 n 1 11 5 15 3 min 0 2 0 12 7 min 0 2 0 14 5 max 1 Flange Panel Leaf spring Recommended panel thickne...

Страница 8: ... to the polarity An A3A with a built in LED does not have a limiting resistor Connect a limiting resistor The resistance can be calculated by using the following expression Note Make sure that the limiting resistor connected to the built in LED of an A3A satisfies the characteristics of the built in LED The mean forward current of the built in LED must be 8 mA minimum Example Conditions Red LED wi...

Страница 9: ... the leaf spring then press the other side into the fitting groove It will be easier mounting the leaf spring of one side first then mount the other side Insert the flange from the front surface of the panel The flange has two opposing guides to facilitate its insertion into the panel cutout hole Be sure the flange does not remain tilted with respect to the panel surface after being installed Whil...

Страница 10: ...1 07 0322 0207 Americas Europe https components omron com us en https components omron com eu en Asia Pacific China https components omron com sg en https components omron com cn Korea Japan https components omron com kr en https components omron com jp ja In the interest of product improvement specifications are subject to change without notice OMRON Corporation 2007 2022 All Rights Reserved ...

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