A165L-ARA-5-2 - Omron Electronic Components LLC

CSM_A16_DS_E_8_1

Pushbutton Switch (Detachable) (Lighted/Non-Lighted) (Cylindrical 16-dia.)

A16

Separate Construction with

Cylindrical 16-dia. Body

• Miniature design of 28.5 mm, the smallest class in the industry.

• Detachable Switch Unit.

• 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

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

terminals

A16@-J Series A16@-A Series A16@-T Series

Screw-less

clamp

models

A16@-J Series A16@-A Series A16@-T Series

A16

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

(4) Color of Pushbutton

• Color illuminated models are also

available (see page

• Order the parts separately.

Symbol Color

RRed

YYellow

Pure yellow

G Green

WWhite

ABlue

PW Pure white

Black (non-lighted

models only)

(1) Degree of Protection

(2) Lighted/Non-lighted

(3) Shape of Pushbutton

Symbol Protection

No symbol IP40

5Oil-resistant

IP65

Symbol Type

No symbol Non-lighted

L Lighted

Symbol Shape

Rectan-

gular

2-way guard

Square

2-way guard

Round

Projecting

model

(7) Contact Configuration

• Only DPDT contacts are available with Screw-

Less Clamp.

• Consult your OMRON representative

concerning pricing and delivery timing for PCB

terminals and screw-less clamp connectors.

Symbol Type Terminal

1 SPDT Solder Terminal

2DPDT

1P SPDT PCB Terminal

2P DPDT

2S DPDT Screw-less Clamp

(5) Switch Operation

Momentary-operation:

Self-resetting

Alternate-operation:

Self-holding

Colored Illumination

The built-in

LED is colored.

Symbol Operation

Momentary

Alternate

Unlit Lit

White Color

(6) Light Source

Voltage Reduction Unit (24-V Built-in LED)

• 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.

Symbol Type Operating

voltage Rated

voltage

No symbol Non-lighted

5Incan-

descent

lamp

5 VAC/VDC 6 VAC/VDC

12 12 VAC/VDC 14 VAC/VDC

24 24 VAC/VDC 28 VAC/VDC

LED

5 ± 5% VDC 5 VDC

12D 12 ± 5%

VAC/VDC 12 VAC/VDC

24D 24 ± 5%

VAC/VDC 24 VAC/VDC

Symbol Type Operating

voltage Rated

voltage

LED

100 to 110

VAC/VDC

100/110

VAC/VDC

T2 200 to 220

VAC/VDC

200/220

VAC/VDC

A16

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

Pushbutton, Lamp (lighted models only), Case, and Switch.

Solder Terminal Models

*1. Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

*1. Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating

voltage

SPDT

LED without

Voltage

Reduction

Unit

5 VDC A16L-J@M-5D-1 A16L-J@A-5D-1 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC A16L-J@M-12D-1 A16L-J@A-12D-1

24 VAC/VDC A16L-J@M-24D-1 A16L-J@A-24D-1

Incandescent

lamp

5 VAC/VDC A16L-J@M-5-1 A16L-J@A-5-1 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC A16L-J@M-12-1 A16L-J@A-12-1

24 VAC/VDC A16L-J@M-24-1 A16L-J@A-24-1

Non-lighted A16-J@M-1 A16-J@A-1

DPDT

LED without

Voltage

Reduction

Unit

5 VDC A16L-J@M-5D-2 A16L-J@A-5D-2 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC A16L-J@M-12D-2 A16L-J@A-12D-2

24 VAC/VDC A16L-J@M-24D-2 A16L-J@A-24D-2

Incandescent

lamp

5 VAC/VDC A16L-J@M-5-2 A16L-J@A-5-2 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC A16L-J@M-12-2 A16L-J@A-12-2

24 VAC/VDC A16L-J@M-24-2 A16L-J@A-24-2

Non-lighted A16-J@M-2 A16-J@A-2

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating

voltage

SPDT

LED without

Voltage

Reduction

Unit

5 VDC A165L-J@M-5D-1 A165L-J@A-5D-1 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC A165L-J@M-12D-1 A165L-J@A-12D-1

24 VAC/VDC A165L-J@M-24D-1 A165L-J@A-24D-1

Incandescent

lamp

5 VAC/VDC A165L-J@M-5-1 A165L-J@A-5-1 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC A165L-J@M-12-1 A165L-J@A-12-1

24 VAC/VDC A165L-J@M-24-1 A165L-J@A-24-1

Non-lighted A165-J@M-1 A165-J@A-1

DPDT

LED without

Voltage

Reduction

Unit

5 VDC

A165L-

M-5D-2 A165L-

A-5D-2

R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A165L-

M-12D-2 A165L-

A-12D-2

24 VAC/VDC

A165L-

M-24D-2 A165L-

A-24D-2

Incandescent

lamp

5 VAC/VDC

A165L-

M-5-2 A165L-

A-5-2

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A165L-

M-12-2 A165L-

A-12-2

24 VAC/VDC

A165L-

M-24-2 A165L-

A-24-2

Non-lighted

A165-

M-2 A165-

A-2

A16@-J

Rectangular Models

IP40

Oil-resistant IP65

Individual models: Refer to pages 9 to 13.

(The Pushbutton, Lamp, Case, and Switch can be ordered

separately.)

■ Ratings: Refer to page 16. ■ Characteristics: Refer to page 16.

■ Accessories: Refer to page 15.

A16

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

Pushbutton, Lamp (lighted models only), Case, and Switch.

Solder Terminal Models

*1. Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

*1. Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating

voltage

SPDT

LED without

Voltage

Reduction

Unit

5 VDC

A16L-

M-5D-1

A16L-A@A-5D-1 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A16L-

M-12D-1

A16L-A@A-12D-1

24 VAC/VDC

A16L-

M-24D-1

A16L-A@A-24D-1

Incandescent

lamp

5 VAC/VDC

A16L-

M-5-1

A16L-A@A-5-1 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A16L-

M-12-1

A16L-A@A-12-1

24 VAC/VDC

A16L-

M-24-1

A16L-A@A-24-1

Non-lighted

A16-

M-1

A16-A@A-1

DPDT

LED without

Voltage

Reduction

Unit

5 VDC

A16L-

M-5D-2

A16L-A@A-5D-2 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A16L-

M-12D-2

A16L-A@A-12D-2

24 VAC/VDC

A16L-

M-24D-2

A16L-A@A-24D-2

Incandescent

lamp

5 VAC/VDC

A16L-

M-5-2

A16L-A@A-5-2 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A16L-

M-12-2

A16L-A@A-12-2

24 VAC/VDC

A16L-

M-24-2

A16L-A@A-24-2

Non-lighted

A16-

M-2

A16-A@A-2

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating

voltage

SPDT

LED without

Voltage

Reduction

Unit

5 VDC

A165L-A

M-5D-1

A165L-

A-5D-1

R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A165L-A

M-12D-1

A165L-

A-12D-1

24 VAC/VDC

A165L-A

M-24D-1

A165L-

A-24D-1

Incandescent

lamp

5 VAC/VDC

A165L-A

M-5-1

A165L-

A-5-1

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A165L-A

M-12-1

A165L-

A-12-1

24 VAC/VDC

A165L-A

M-24-1

A165L-

A-24-1

Non-lighted

A165-A

M-1

A165-

A-1

DPDT

LED without

Voltage

Reduction

Unit

5 VDC

A165L-A

M-5D-2

A165L-

A-5D-2

R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A165L-A

M-12D-2

A165L-

A-12D-2

24 VAC/VDC

A165L-A

M-24D-2

A165L-

A-24D-2

Incandescent

lamp

5 VAC/VDC

A165L-A

M-5-2

A165L-

A-5-2

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A165L-A

M-12-2

A165L-

A-12-2

24 VAC/VDC

A165L-A

M-24-2

A165L-

A-24-2

Non-lighted

A165-A

M-2

A165-

A-2

A16@-A

Square Models

IP40

Oil-resistant IP65

Individual models: Refer to pages 9 to 13.

(The Pushbutton, Lamp, Case, and Switch can be ordered

separately.)

■ Ratings: Refer to page 16. ■ Characteristics: Refer to page 16.

■ Accessories: Refer to page 15.

A16

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

Pushbutton, Lamp (lighted models only), Case, and Switch.

Solder Terminals

*1. Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

*1. Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating

voltage

SPDT

LED without

Voltage

Reduction

Unit

5 VDC A16L-

@M-5D-1 A16L-

@A-5D-1 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC A16L-

@M-12D-1 A16L-

@A-12D-1

24 VAC/VDC A16L-

@M-24D-1 A16L-

@A-24D-1

Incandescent

lamp

5 VAC/VDC A16L-

@M-5-1 A16L-

@A-5-1 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC A16L-

@M-12-1 A16L-

@A-12-1

24 VAC/VDC A16L-

@M-24-1 A16L-

@A-24-1

Non-lighted A16-

@M-1 A16-

@A-1

DPDT

LED without

Voltage

Reduction

Unit

5 VDC A16L-

@M-5D-2 A16L-

@A-5D-2 R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC A16L-

@M-12D-2 A16L-

@A-12D-2

24 VAC/VDC A16L-

@M-24D-2 A16L-

@A-24D-2

Incandescent

lamp

5 VAC/VDC A16L-

@M-5-2 A16L-

@A-5-2 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC A16L-

@M-12-2 A16L-

@A-12-2

24 VAC/VDC A16L-

@M-24-2 A16L-

@A-24-2

Non-lighted A16-

@M-2 A16-

@A-2

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating

voltage

SPDT

LED without

Voltage

Reduction

Unit

5 VDC

A165L-

M-5D-1 A165L-

A-5D-1

R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A165L-

M-12D-1 A165L-

A-12D-1

24 VAC/VDC

A165L-

M-24D-1 A165L-

A-24D-1

Incandescent

lamp

5 VAC/VDC

A165L-

M-5-1 A165L-

A-5-1

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A165L-

M-12-1 A165L-

A-12-1

24 VAC/VDC

A165L-

M-24-1 A165L-

A-24-1

Non-lighted

A165-

M-1 A165-

A-1

DPDT

LED without

Voltage

Reduction

Unit

5 VDC

A165L-

M-5D-2 A165L-

A-5D-2

R: red, Y: yellow

PY: pure yellow

G: green, A: blue

W: white

PW: pure white

12 VAC/VDC

A165L-

M-12D-2 A165L-

A-12D-2

24 VAC/VDC

A165L-

M-24D-2 A165L-

A-24D-2

Incandescent

lamp

5 VAC/VDC

A165L-

M-5-2 A165L-

A-5-2

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

B: black *2

12 VAC/VDC

A165L-

M-12-2 A165L-

A-12-2

24 VAC/VDC

A165L-

M-24-2 A165L-

A-24-2

Non-lighted

A165-

M-2 A165-

A-2

A16@-T

Round Models

IP40

Oil-resistant IP65

Individual models: Refer to pages 9 to 13.

(The Pushbutton, Lamp, Case, and Switch can be ordered

separately.)

■ Ratings: Refer to page 16. ■ Characteristics: Refer to page 16.

■ Accessories: Refer to page 15.

A16

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

Pushbutton, Lamp (lighted models only), Case, and Switch.

Models with Reduced-voltage Lighting and Solder Terminals

* Enter the desired shape for the Pushbutton in ∆: J (rectangular), A (square), or T (round). Enter the desired color symbol for the Pushbutton in the @.

Screw-less Clamp Models

*1. Enter the desired shape for the Pushbutton in ∆: J (rectangular), A (square), or T (round). Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

*1. Enter the desired shape for the Pushbutton in ∆: J (rectangular), A (square), or T (round). Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *

Output Lighting Operating voltage

SPDT LED (with built-in

reduced-voltage

lighting function)

100/110 VAC/VDC A16L-∆@M-T1-1 A16

-∆@A-T1-1 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

PW: pure white

DPDT 100/110 VAC/VDC A16

-∆@M-T1-2 A16

-∆@A-T1-2

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *

Output Lighting Operating voltage

SPDT LED (with built-in

reduced-voltage

lighting function)

100/110 VAC/VDC A165

-∆@M-T1-1 A165

-∆@A-T1-1 R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

PW: pure white

DPDT 100/110 VAC/VDC A165

-∆@M-T1-2 A165

-∆@A-T1-2

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating voltage

DPDT

LED

5 VDC A16L-∆@M-5D-2S A16L-∆@A-5D-2S

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

PW: pure white

B: black *2

12 VAC/VDC A16L-∆@M-12D-2S A16L-∆@A-12D-2S

24 VAC/VDC A16L-∆@M-24D-2S A16L-∆@A-24D-2S

LED (with built-in

reduced-voltage

lighting function)

100/110 VAC/VDC A16L-∆@M-T1-2S A16L-∆@A-T1-2S

200/220 VAC/VDC A16L-∆@M-T2-2S A16L-∆@A-T2-2S

Non-lighted A16-∆@M-2S A16-∆@A-2S

Item Momentary operation

(Self-resetting) Alternate operation

(Self-holding) Pushbutton color

symbol *1

Output Lighting Operating voltage

DPDT

LED

5 VDC

A165L

-∆@

M-5D-2S A165L

-∆@

A-5D-2S

R: red, Y: yellow

PY: pure yellow

G: green, W: white

A: blue

PW: pure white

B: black *2

12 VAC/VDC

A165L

-∆@

M-12D-2S A165L

-∆@

A-12D-2S

24 VAC/VDC

A165L

-∆@

M-24D-2S A165L

-∆@

A-24D-2S

LED (with built-in

reduced-voltage

lighting function)

100/110 VAC/VDC

A165L

-∆@

M-T1-2S A165L

-∆@

A-T1-2S

200/220 VAC/VDC

A165L

-∆@

M-T2-2S A165L

-∆@

A-T2-2S

Non-lighted

A165

-∆@

M-2S A165

-∆@

A-2S

A16@-T1

IP40 Note: Models with voltage ratings of 200 to 220 VAC/DC (T2 models) are listed with models with screw-less clamp

Oil-resistant IP65

IP40

A16@-2S

Oil-resistant IP65

A16

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

Pushbutton, Lamp (lighted models only), Case, and Switch.

Models with PCB Terminals

Note: Contact your OMRON representative about Selector Switches and Key Selector Switches.

*1. Enter the desired shape for the Pushbutton in ∆: J (rectangular), A (square), or T (round). Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

Note: Contact your OMRON representative about Selector Switches and Key Selector Switches.

*1. Enter the desired shape for the Pushbutton in ∆: J (rectangular), A (square), or T (round). Enter the desired color symbol for the Pushbutton in the @.

*2. Black (“B”) Pushbuttons are only available for non-lighted models.

Item Momentary operation

(Self-resetting) Pushbutton color

symbol *1

Output Lighting Operating voltage

SPDT

LED

5 VDC A16L-∆@M-5D-1P

R: red

Y: yellow

PY: pure yellow

G: green

A: blue

W: white

B: black *2

12 VAC/VDC A16L-∆@M-12D-1P

24 VAC/VDC A16L-∆@M-24D-1P

Non-lighted A16-∆@M-1P

DPDT

LED

5 VDC A16L-∆@M-5D-2P

12 VAC/VDC A16L-∆@M-12D-2P

24 VAC/VDC A16L-∆@M-24D-2P

Non-lighted A16-∆@M-2P

Item Momentary operation

(Self-resetting) Pushbutton color

symbol *1

Output Lighting Operating voltage

SPDT

LED

5 VDC A165L-∆@M-5D-1P

R: red

Y: yellow

PY: pure yellow

G: green

A: blue

W: white

B: black *2

12 VAC/VDC A165L-∆@M-12D-1P

24 VAC/VDC A165L-∆@M-24D-1P

Non-lighted A165-∆@M-1P

DPDT

LED

5 VDC A165L-∆@M-5D-2P

12 VAC/VDC A165L-∆@M-12D-2P

24 VAC/VDC A165L-∆@M-24D-2P

Non-lighted A165-∆@M-2P

IP40

A16@-P

IP65

A16

Ordering Information

Illumination Only and Colored Illumination for Models with LEDs

With illumination only, the color of the lighted surface is the same when the LED is lit and when it is not lit.

Example: Red Illumination

With colored illumination, the color of the lighted surface is white when the LED is not lit and the LED emits another color when it is lit.

Example: Red Illumination

Ordering: For colored illumination, order the Operation Unit, Case, Lamp, and Socket Unit separately.

Color emitted

when lit Operation Unit Case Lamp (LED) Socket Unit

Red IP40

A16L-@W

IP65

A165L-@W

Insert one of the fol-

lowing symbols into

the box (@).

J: Rectangular

A: Square

T: Round

IP40

• Momentary: A16-C@M

• Alternate: A16-C@A

IP65

• Momentary: A165-C@M

• Alternate: A165-C@A

Insert one of the following symbols

into the box (@).

J: Rectangular (2-way guard)

A: Square (2-way guard)

T: Round (projected)

A16-@DSR

Specify one of the fol-

lowing symbols in the

box (@).

5: 5 VDC

12: 12 VAC/VDC

24: 24 VAC/VDC

Refer to page 14. Any

Switch can be mount-

ed.

Yellow A16-@DSY

Green A16-@DSG

Blue A16-@DA

Cap (red)

Not lit

Red Legend plate

Dispersion plate (milky white)

Reflective plunger

LED lamp (red) Lamp

Operation Unit

Lit

Red

Cap (translucent)

Not lit

White Legend plate

Dispersion plate (milky white)

Reflection plunger

LED lamp (red) Lamp

Operation Unit

Lit

Red

A16

Ordering Information

Ordering Individually .........Pushbuttons, Lamps, Cases, and Switches (Sockets) 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.

Pushbutton

Case

Socket

Square Models Round ModelsRectangular Models

Note: Use IP40 Operation Units with IP40

Socket Units and use IP65 Operation

Units with IP65 Socket Units. There is no

Legend Plate built into the Operation Unit.

Note: Operation Unit Sets that combine an Operation Unit and a Case are also

available. (Refer to page 10.)

Lighted Models

Lamp

LED Incandescent lamp

Non-lighted Models

Solder terminals

(no transformer)

Lighted/non-lighted Note: Socket Unit Sets that combine a Lamp and a Socket Unit are

also available. (Refer to page 11.)

Ordering set combinations: Refer to pages 3 to 7. ■ Specifications: Refer to page 16.

■ Accessories, Replacement, and Tools: Refer to page 15.

A16

Ordering Information

Units ............................... Select an Operation Unit Set (Operation Unit and Case) and a Socket Unit Set (Lamp and Socket Unit).

Unit Sets....................... Sets that combine an Operation Unit and a Case.

Operation Unit

Insert one of the following symbols into the box (@).

* Use this pushbutton color if the illumination color of the LED is white or pure white.

Operation Unit

Socket Unit Set with Voltage-reduction Lighting Socket Unit Set with Screw-less Clamp Connectors

Appearance Classification Model

IP40

Momentary

operation

Rectangular (2-way guard) A16-J@M

Square (2-way guard) A16-A@M

Round (projected) A16-T@M

Alternate operation

Rectangular (2-way guard) A16-J@A

Square (2-way guard) A16-A@A

Round (projected) A16-T@A

Oil-resistant IP65

Momentary

operation

Rectangular (2-way guard) A165-J@M

Square (2-way guard) A165-A@M

Round (projected) A165-T@M

Alternate operation

Rectangular (2-way guard) A165-J@A

Square (2-way guard) A165-A@A

Round (projected) A165-T@A

Symbol Color Remarks

RRed

LED indicator, incandescent

lamp, or non-lighted

YYellow

PY Pure yellow

ABlue

WWhite*

GY Green LED only

G Green Incandescent lamp or non-lighted

B Black Non-lighted only

Rectangular, square, round

Lighted Models Lighted/Non-lighted Model

Voltage-reduction

lighting

Lamp

Note: An LED rated 24 VAC/VDC is built-in.

Lighted/Non-lighted

Lamp

Note: Non-lighted models do not include a Lamp.

A16

Ordering Information

Unit Sets....................... Sets that combine a Socket Unit and a Lamp.

Socket Unit Sets with Incandescent Lamps

Socket Unit Sets with LED Lamps

Socket Unit Set with Voltage-reduction Lighting (Soldered Terminals)

Note: An LED rated 24 VAC/VDC is built-in.

Screw-less Clamp Socket Unit Sets

Note: The 100-V models and 200-V models an LED rated 24 VAC/VDC is built-in.

Insert symbols in Δ and @.

Δ@

Note: If the Operation Unit is pure yellow (PY), use white (W) for the Socket Unit Set.

Appearance Classification Model

Standard loads and

microloads Solder terminals

SPDT A16L-@-1

DPDT A16L-@-2

Appearance Classification Model

Standard loads and

microloads

Solder terminals SPDT A16L-Δ-@-1

DPDT A16L-Δ-@-2

PCB terminals SPDT A16L-Δ-@-1P

DPDT A16L-Δ-@-2P

Appearance Classification Operating voltage Model

Standard loads and microloads

SPDT 100/110 VAC/VDC A16L- Δ-T1-1

DPDT 100/110 VAC/VDC A16L-Δ-T1-2

Appearance Classification Model

Standard loads and

microloads DPDT

Non-lighted A16-2S

Lighted

No voltage-reduction lighting A16L-Δ-@-2S

Voltage-reduc-

tion lighting

Note.

100/110 VAC/VDC A16L-Δ-T1-2S

200/220 VAC/VDC A16L-Δ-T2-2S

Symbol Color Symbol Type Operating

voltage

RRed 5

Incandescent

5 VAC/VDC

Y Yellow 12 12 VAC/VDC

G Green 24 24 VAC/VDC

W White 5D

LED

5 VDC

A Blue 12D 12 VAC/VDC

24D 24 VAC/VDC

A16

Ordering Information

Ordering Individually......... Pushbuttons, Lamps, Cases, and Switches (Sockets) 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.

Pushbuttons

LED

* Use this pushbutton color if the illumination color of the LED is white or pure white.

Incandescent Lamps (With the exception of green, the Units are the same as for LEDs.)

Non-lighted (Same as Units for incandescent lamps.)

Degree of protection IP40 Oil-resistant IP65

Color

Rectangular Square Round Rectangular Square Round

Red A16L-JR A16L-AR A16L-TR A165L-JR A165L-AR A165L-TR

Yellow A16L-JY A16L-AY A16L-TY A165L-JY A165L-AY A165L-TY

Pure yellow A16L-JPY A16L-APY A16L-TPY A165L-JPY

A165L-APY A165L-TPY

Green A16L-JGY A16L-AGY A16L-TGY

A165L-JGY A165L-AGY A165L-TGY

White* A16L-JW A16L-AW A16L-TW A165L-JW A165L-AW A165L-TW

Blue A16L-JA A16L-AA A16L-TA A165L-JA A165L-AA A165L-TA

Degree of protection IP40 Oil-resistant IP65

Color

Rectangular Square Round Rectangular Square Round

Red A16L-JR A16L-AR A16L-TR A165L-JR A165L-AR A165L-TR

Yellow A16L-JY A16L-AY A16L-TY A165L-JY A165L-AY A165L-TY

Pure yellow A16L-JPY A16L-APY A16L-TPY A165L-JPY

A165L-APY A165L-TPY

Green A16L-JG A16L-AG A16L-TG

A165L-JG A165L-AG A165L-TG

White A16L-JW A16L-AW A16L-TW A165L-JW A165L-AW A165L-TW

Blue A16L-JA A16L-AA A16L-TA A165L-JA A165L-AA A165L-TA

Degree of protection IP40 Oil-resistant IP65

Color

Rectangular Square Round Rectangular Square Round

Red A16L-JR A16L-AR A16L-TR A165L-JR A165L-AR A165L-TR

Yellow A16L-JY A16L-AY A16L-TY A165L-JY A165L-AY A165L-TY

Pure yellow A16L-JPY A16L-APY A16L-TPY A165L-JPY

A165L-APY A165L-TPY

Green A16L-JG A16L-AG A16L-TG

A165L-JG A165L-AG A165L-TG

White A16L-JW A16L-AW A16L-TW A165L-JW A165L-AW A165L-TW

Blue A16L-JA A16L-AA A16L-TA A165L-JA A165L-AA A165L-TA

Black A16L-JB A16L-AB A16L-TB A165L-JB A165L-AB A165L-TB

Ordering set combinations: Refer to pages 3 to 7. ■ Specifications: Refer to page 16

■ Accessories, Replacement, and Tools: Refer to page 15.

A16

Ordering Information

Ordering Individually .........Pushbuttons, Lamps, Cases, and Switches (Sockets) 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.

Lamps

LED

Note: 1. If an LED lamp with normal brightness is needed, select a Lamp used in the A3C.

2. For voltage-reduction lighting use the A16-24D@. Only 24 VAC/VDC LED lamps can be used.

* Use the white LED together with white or pure yellow Pushbuttons.

Incandescent Lamp

Cases

Operating voltage

Light color

High brightness

5 VDC 12 VAC/VDC 24 VAC/VDC

Red A16-5DSR A16-12DSR A16-24DSR

Yellow A16-5DSY A16-12DSY A16-24DSY

Green A16-5DSG A16-12DSG A16-24DSG

White * A16-5DSW A16-12DSW A16-24DSW

Blue A16-5DA A16-12DA A16-24DA

Pure white A16-5DPW A16-12DPW A16-24DPW

Appearance Operating voltage Model

5 VAC/VDC A16-5

12 VAC/VDC A16-12

24 VAC/VDC A16-24

Appearance Classification Model

IP40

Momentary operation

Rectangular (2-way guard) A16-CJM

Square (2-way guard) A16-CAM

Round (projected) A16-CTM

Alternate operation

Rectangular (2-way guard) A16-CJA

Square (2-way guard) A16-CAA

Round (projected) A16-CTA

Oil-resistant IP65

Momentary operation

Rectangular (2-way guard) A165-CJM

Square (2-way guard) A165-CAM

Round (projected) A165-CTM

Alternate operation

Rectangular (2-way guard) A165-CJA

Square (2-way guard) A165-CAA

Round (projected) A165-CTA

Ordering set combinations: Refer to pages 3 to 7. ■ Specifications: Refer to page 16

■ Accessories, Replacement, and Tools: Refer to page 15.

A16

Ordering Information

Switches

Switches with Reduced-voltage Lighting

Note: For voltage-reduction use the A16-24D@. Only 24 VAC/VDC LED lamps can be used.

Appearance Classification Model

Solder terminal

Lighted/non-lighted (common use) Standard load/microload

(common use)

SPDT A16-1

DPDT A16-2

PCB terminal

SPDT A16-1P

DPDT A16-2P

Screw-less Clamp

DPDT A16-2S

Appearance Classification Model

Solder terminal

100 V

Standard load/microload

(common use)

SPDT A16-T1-1

DPDT A16-T1-2

Screw-less Clamp

100 V

DPDT

A16-T1-2S

200 V A16-T2-2S

A16

Ordering Information

Accessories, Replacements, and Tools

Accessories

Replacements

Tools

Name Appearance Classification Model Remarks

Switch Guards

For rectangular models A16ZJ-5050

Cannot be used with the Dust Cover.

For square and round

models A16ZA-5050

Dust Covers

For rectangular models A16ZJ-5060

Cannot be used with the Switch Guard.

Can be operated with the Dust Cover attached.

For square models A16ZA-5060

For round models A16ZT-5060

Panel Plugs

For rectangular models A16ZJ-3003 Used for covering the panel cutouts for future panel

expansion.

Protective structure: IP40

Color: Black

For square models A16ZA-3003

For round models A16ZT-3003

Name Appearance Classification Model Remarks

Legend Plates

Rectangu-

lar

Oil-resistant

IP65 Milky A16ZJ-5204 • A single Legend Plate (Milky

white) is included with a standard

model.

• The milky Legend Plate can be

used with the IP40 and oil-resis-

tant IP65.

Square Oil-resistant

IP65 Milky A16ZA-5204

Round Oil-resistant

IP65 Milky A16ZT-5204

Color Caps (for

IP40)

Rectangular

Square

Round

LED lamp/incandescent

lamp/nonlighted

White A16Z@-5001W

• Insert one of the following letters

into the box (@).

J: Rectangular

A: Square

T: Round

• The Color Cap is usually supplied.

Replace the Cap if the color is to

be changed.

• When using an LED indicator, be

sure to use a Color Cap that

matches the luminescent color of

the LED.

• The materials used for the IP40

and oil-resistant IP65 are different

so be sure to use a Color Cap that

matches the specifications of the

Switch.

Red A16Z@-5001R

Yellow A16Z@-5001Y

Pure yellow A16Z@-5001PY

Blue A16Z@-5001A

LED lamp Green A16Z@-5001GY

Incandescent lamp/non-lighted

Green A16Z@-5001G

Non-lighted Black A16Z@-5011B

Color Caps (for

oil-resistant IP65)

LED lamp/incandescent

lamp/nonlighted

White A16Z@-5101W

Red A16Z@-5101R

Yellow A16Z@-5101Y

Pure yellow A16Z@-5101PY

Blue A16Z@-5101A

LED lamp Green A16Z@-5101GY

Incandescent lamp/non-lighted

Green A16Z@-5101G

Non-lighted Black A16Z@-5111B

Name Appearance Model

Applicable types

Remarks

Pushbut-

ton Switch

Knob-type

Selector

Switch

Key-type

Selector

Switch

Emergen-

cy Stop

Switch Indicator

Operation Unit

Extractor A3PJ-5080 ●———●

Convenient for ex-

tracting Pushbutton

Switches

Screw Fitting A16Z-3004 ●●●●●

Convenient for

ganged installation.

Socket Unit Lamp

Extractor A16Z-5080 ●●●●●

Convenient for ex-

tracting the Switch

and Lamps.

A16

Specifications

Approved Standard Ratings

Ratings

Contacts

Minimum applicable load: 1 mA at 5 VDC

Rated values are obtained from tests conducted under the following

conditions.

1. Load: Resistive load

2. Mounting conditions: No vibration and no shock

3. Temperature: 20 ±2°C

4. Operating frequency: 20 operations/min

Contact Form

Super-bright LED

Incandescent Lamp

Voltage-reduction Unit (LED Lamp)

Characteristics

Socket Unit

*1. Set and reset constitute one operation.

*2. With LED and incandescent lamp not mounted.

*3. Degree of protection from the front of the panel.

Screw-less Clamp

Operating Characteristics

* Alternate operation models only.

UL, cUL (File No. E41515) TÜV (EN60947-5-1) (Low Voltage Directive) CCC (GB14048.5)

5 A at 125 VAC, 3 A at 250 VAC (general use)

3 A at 30 VDC (resistive)

Note: Certification has been obtained for the Socket Unit.

For detailed information on individual products that

have received certification, consult your supplier.

3 A at 250 VAC

3 A at 30 VDC

5 A at 125 VAC

3 A at 250 VAC

3 A at 30 VDC

Rated voltage Resistive load

125 VAC 5 A

250 VAC 3 A

30 VDC 3 A

Name Contact

DPDT COM

Rated

voltage Rated

current Operating

voltage Internal limiting resistor

5 VDC

8 mA

5 VDC ±5% Red, yellow, white: 300 Ω

Green, blue, pure white: 160 Ω

12 VAC/VDC 12 VAC/VDC ±5% Red, yellow, white: 1 kΩ

Green, blue, pure white: 910 Ω

24 VAC/VDC 24 VAC/VDC ±5% 2.4 kΩ

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

Rated voltage Operating voltage Applicable lamp

110 VAC/VDC 100/110 VAC/VDC

(90 to 121 V) A16-24DS@

LED Lamp

220 VAC/VDC 200/220 VAC/VDC

(180 to 242 V)

Item Type Pushbutton Switch

Allowable

operating

frequency

Mechanical

Momentary operation: 120 operations/minute max.

Alternate operation: 60 operations/minute max. *1

Electrical 20 operations/minute max. *1

Insulation resistance 100 MΩ min. (at 500 VDC)

Dielectric

strength

Between terminals

of same polarity 1,000 VAC, 50/60 Hz for 1 minute

Between terminals

of different polarity

2,000 VAC, 50/60 Hz for 1 minute

Between each ter-

minal and ground 2,000 VAC, 50/60 Hz for 1 minute

Between lamp ter-

minals 1,000 VAC, 50/60 Hz for 1 minute *2

Vibration

resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude

(malfunction within 1 ms)

Shock

resistance

Destruction 500 m/s2

Malfunction 150 m/s2 max. (malfunction within 1 ms)

Durability Mechanical

Momentary operation: 2,000,000 operations min.

Alternate operation: 200,000 operations min. *1

Electrical 100,000 operations min. *1

Electric shock protection class Class II

PTI (tracking characteristic) 175

Degree of contamination 3 (IEC947-5-1)

Weight Approx. 10 g (in the case of a lighted

DPDT switch with solder terminals)

Degree of protection IP40: A16, Oil-resistant IP65: A165 *3

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)

Item Screw-Less Clamp

Recommended wire size 0.5 mm2 twisted wire or 0.8 mm-dia. solid wire

Usable wires

and tensile

strength

Twisted

wire 0.3 mm20.5 mm20.75 mm21.25 mm2

Solid

wire 0.5 mm

dia.

0.8 mm

dia.

1.0 mm

dia. —

Tensile

strength 10 N 20 N 30 N 40 N

Length of exposed wire 10 ±1mm

Compliant standards JIS C 2811 Terminal Blocks for Industrial Use

Type Pushbutton Switch

Characteristics IP40 Oil-resistant IP65

Operating force (OF) max. 4.41 N 4.91 N

Releasing force (RF) min. 0.29 N

Total travel (TT) Approx. 3 mm

Pretravel (PT) max. 2.5 mm

Lock travel alternate (LTA) min.

*0.5 mm

A16

Nomenclature

Model Structure

Cap

●Terminal Type

Solder terminals

(tab terminals #110)

PCB terminals

Screw-less Clamp

●Degree of Protection

IP40/Oil-resistant IP65

●Color of Pushbutton

· LED/incandescent models

Red, Green, Yellow, White, Blue

· Neon models

Red, Green, White

· Non-lighted models

Red, Green, Yellow, White, Blue, Black

Legend plate

Dispersion plate

Reflective plunger

Lamp

Square (A16@-A)

Round (A16@-T)

Rectangular (A16@-J)

●Flange Shape

●Switch Ratings

5 A at 125 VAC

3 A at 250 VAC

3 A at 30 VDC

Minimum applicable load: 1 mA at 5 VDC

Pushbutton

Switch

A16

Dimensions • The Dimension shows 2-switch outputs. • The lamp terminal is also provided with non-lighted models. (Unit: mm)

12.2

2.8

18 15.1

Packing (t0.5)

(for oil-resistant IP65 only)

Mounting nut

4.85

Lamp terminal

15.812.4

M16×1

Lock ring

10.8

28.5

21.1

9.5

Lamp terminal

24 min.

19 min.

16 dia.

+0.2

Rectangular

A16@-J

Solder terminals (tab terminals #110)

•See page 21 for panel cutouts

12.2

2.8

Packing (t0.5)

(for oil-resistant IP65 only)

Mounting nut

4.85

Lamp terminals

15.812.4

M16×1

10.8

28.5

21.1

9.5

Lamp terminals

Lock ring

18 15.1

15.1

19 min.

16 dia.

+0.2

19 min.

Square

A16@-A

Solder terminals (tab terminals #110)

•See page 21 for panel cutouts

12.2

2.8

18 Packing (t0.5)

(for oil-resistant IP65 only)

15.8

Lamp terminals

15.1 dia.

18 dia.

Mounting nut

Lock ring

M16×1

Lamp terminals

10.8

28.5

21.1

9.5

12.4

4.85

19 min.

16 dia.

+0.2

19 min.

Round

A16@-T

Solder terminals (tab terminals #110)

•See page 21 for panel cutouts

A16

Dimensions

•

The Dimension shows 2-switch outputs.

•

The lamp terminal is also provided with non-lighted models.

•

A rectangular model is listed as an example.

(Unit: mm)

18 15.1

0.5

4.85 18.6

18.4 20.4

6.3

2.5

12.4

23.1

28.3

26.4

21.1

10.8

9.5

Lock ring

Mounting nut

Packing (t0.5)

(for oil-resistant IP65 only)

M16×1

24 min.

16 dia.

+0.2

14.7 ± 0.05 dia.

9.1 ± 0.05

5.1 ± 0.05

ectangu

A16@-J@-@P

PCB terminals

•See page 21 for panel cutouts

9.5 21.1

28.5

Marking face

189.8

0.5

0.5 Direction-indication arrow

M16×1

12.2

42.7

50.1

(22.4)

15.1

20.6

10.86

16.68.8

12.42.8

Switch

Mounting nut

2.8

Packing (t0.5)

(for oil-resistant IP65 only)

Lock ring

24 min.

Panel Cutouts

23 min.

16 dia.

+0.2

Rectangular

A16@-J@-T1

Voltage-reduction lighting, solder terminals

(tab terminals #110)

Mounting nut

Switch dismounting lever

Packing (t0.5)

(for oil-resistant IP65 only)

27.4(31.7) 23.5

23.9

9.5

48.9

15.1

M16×1

10.8

Lock ring

25 min.

Panel Cutouts

33 min.

16 dia.

+0.2

Rectangular

A16@-J@-2S, T1-2S, T2-2S

Screw-less Clamp

12 max. 4Cathode (-)

Anode (+)

2.8

0.25

6 dia.

Lamps

LED

A16-5D@/-12D@/-24D@

Incandescent Lamp

A16-5/-12/-24

2.54

12 max. 4

6 dia.

0.5 dia.

* The voltage display surface is the same color as the illumination

color. The opposite surface is light gray.

(For pure white, the entire surface is light gray.)

A16

Dimensions (Unit: mm)

Accessories, Tools, and Components

Panel Plugs (Black Resin)

Select the Plug that fits the panel design and

mount from the front of the Panel. Panel cutouts

are the same as those for Switches.

Protective structure: IP40

Color: Black

15 5 10

Extractor

A3PJ-5080

18.9

12.9

0.6 0.6

12.9

0.6

13.4 dia.

12.9 dia.

Legend Plates

A16ZJ-520@A16ZA-520@A16ZT-520@

18 dia.

Screw Fitting

A16Z-3004

ote:

e pane

mm t

2. The panel is made of the materials listed in the following

table.

Color Degree of

protection Materials

Milky IP40 Polyalylate resin

IP65

Transparent IP40 Polycarbonate resin

IP65 Polyalylate resin

Rectangular Square Round

A16ZJ-3003

A16ZA-3003

18 dia.

A16ZT-3003

15 dia.

-0.1

Rough surface

17.9 ± 0.1

15.8 ± 0.1 dia.

@12

2+0.2

t=1

Lock Ring

Socket Unit Lamp Extractor

A16Z-5080

A16

Dimensions (Unit: mm)

Panel Cutouts

Solder Terminals and Screw-less Clamp Connectors PCB Terminals

Terminal Arrangement

Models without Reduced-voltage Lighting (Non-lighted Pushbutton Switches are also provided with lamp terminals.)

Solder Terminals

Rectangular A16

J/M16

Square A16@-A/M16@-A

Round A16@-T/M16@-T Rectangular A16@-J/M16@-J Square A16@-A/M16@-A

Round A16@-T/M16@-T

(Top View) (Top View) (Top View) (Top View)

Note:• Make sure the thickness of the mounting panel is between 0.5 and 3.2

mm. If, however, a Switch Guard or Dust Cover is used, the thickness

of the mounting panel must be between 0.5 and 2 mm.

• If the panel is to be finished with coating, etc., make sure that the panel

meets the specified dimensions after coating.

• Figures in parentheses are for Screw-less Clamp Connectors.

Note:• Ensure that the variation in the distance between the centers of

neighboring mounting holes is less than ±0.1 mm.

• Make sure the thickness of the mounting panel is between 0.5 and 3.2

mm. If, however, a Switch Guard or Dust Cover is used, the thickness

of the mounting panel must be between 0.5 and 2 mm.

• If the panel is to be finished with coating, etc., make sure that the panel

meets the specified dimensions after coating.

24 min.

(25 min.)

19 min.

(33 min.)

16 dia.

+0.2

19 min.

(33 min.)

19 min.

(25 min.)

16 dia.

+0.2

9.1 ± 0.05

5.1 ± 0.05

14.7 ± 0.05 dia. 24 min.

24 min.

16 dia.

+0.2

16 dia.

+0.2

19 min.

(33 min.)

19 min.

(25 min.)

Lighted SPDT Switches Lighted DPDT Switches

Terminal Arrangement

(Bottom View)

Dimensions of

Terminal Holes

Note: The L+ is not shown on the Switch.

2.6

0.9

1.5

2.8 Lamp terminal

12.2

7.4

NC L-

COM

SW1

2.6

0.9

1.5

2.8

12.2

7.4

COM

NC L-

COM

SW2SW1

Terminal Arrangement

(Bottom View)

Dimensions of

Terminal Holes

Note: The L+ is not shown on the Switch.

Lamp terminal

A16

Dimensions (Unit: mm)

PCB Terminals (Lamp terminals are also present on non-lighted models.)

Terminal Arrangement

Voltage-reduction Lighting (Lamp terminals are also present on non-lighted models.)

Solder Terminals Screw-Less Clamps

Lighted SPDT Switches Lighted DPDT Switches

DPDT lighted models DPDT lighted models

•The voltage-reduction circuit is built in. •Voltage-reduction lighting models with Screw-Less Clamps (A16L-@T1-2S, A16L-@T2-2S)

incorporate voltage-reduction circuits.

Model, rating, and lot

number indication

Terminal Arrangement

(Bottom View)

Dimensions of

PCB Terminals

4.85

18.6

Lamp terminal (t=0.5)

1.5

3.5

5.3

2.7

0.8

12.4

Side with TOP indicated

NC L-

COM

SW 1

Side with TOP indicated A ± 0.1

L ± 0.1

Two, 5 dia.

Five, 1 dia.

20 ± 0.1 4.85 ± 0.05

6.3 ± 0.05

PCB Cutouts

(Bottom View)

A = 24 min.: Rectangular

A = 21 min.: Square or round

L = 24 min.

Use a PCB with a thickness of 1.6 mm.

12.4 ± 0.05

Note: Secure the panel to the board using stud bolts

if force will be applied to the board after wiring.

1.5

3.5

5.3

2.7

0.8

4.85

18.6

12.4

Lamp terminal (t=0.5)

Terminal Arrangement

(Bottom View)

Dimensions of

PCB Terminals

Side with TOP indicated

COM

NC L-

COM

SW 2SW 1

Eight, 1

Two, 5 dia.

A ± 0.1

L ± 0.1

6.3 ± 0.056.3 ± 0.05

12.4 ± 0.05

Side with TOP indicated

PCB Cutouts

(Bottom View)

4.85 ± 0.05

20 ± 0.1

A = 24 min.: Rectangular

A = 21 min.: Square or round

L = 24 min.

Use a PCB with a thickness of 1.6 mm.

Note: Secure the panel to the board using stud bolts

if force will be applied to the board after wiring.

Side with direction arrow

(Bottom view)

NCNC

NONO

Red (Release button)

White (Release button)

Black (Release button)

Red (Release button)

White (Release button)

Black (Release button)

Red (Release button)

Black (Release button)

NC1

NO1

NC2

Side indicating TOP

NO2

C2 +

12-3.1 dia. (Insertion hole)

A16

Dimensions (Unit: mm)

Accessory Dimensions Mounted

Dimensions with Switch Guard Installed

Dust Covers

10.5

23.5

Torsion spring

24.5 min.

Panel Cutout (Top View)

28 min.

+0.2

dia.

Guard (transparent)

Holder (black)

19.6

18.1

Rectangular

A16ZJ-5050

Note: This example is for when X is

4.5 mm.

If X is not required, the

Switches can be mounted with

a minimum vertical installation

pitch of 24 mm min.

10.5

23.5

Torsion spring

19 min.

Panel Cutout (Top View)

28 min.

+0.2

dia.

19.6

18.1

Guard (transparent)

Holder (black)

Square

A16ZA-5050

Note:

This example is for when X is 4.5

mm.

If X is not required, the Switches

can be mounted with a minimum

vertical installation pitch of 24 mm

min.

If PCB terminals are used, provide X

must be 24 mm or larger.

Cover B (transparent)

Cover A (black)

19.6

2713.8

16 dia.

+0.2

31 min.

25 min.

Rectangular

A16ZJ-5060 Panel Cutouts

Square

A16ZA-5060

Cover B (transparent)

Cover A (black)

19.6

2713.8

25 min.

16 dia.

+0.2

Panel Cutouts

Round

A16ZT-5060

24 dia.

Cover B (transparent)

Cover A (black)

19.6

2713.8

25 min.

16 dia.

+0.2

Panel Cutouts

A16

Safety Precautions

Refer to Safety Precautions for All Pushbutton Switches.

Do not apply a voltage between the incandescent

lamp and the terminal that is greater than the rated

voltage. If the incandescent lamp is broken, the

operating part may pop out.

Always turn OFF the power and wait for 10 minutes

before replacing the incandescent lamp. If the lamp is

replaced immediately after the power is turned OFF,

the remaining heat may cause burns.

Mounting

•Always make sure that the power is turned OFF before mounting,

removing, or wiring the Switch, or performing maintenance.

•Do not tighten the mounting nut more than necessary using tools

such as pointed-nose pliers. Doing so will damage the mounting

nut.

The tightening torque is 0.29 to 0.49 N·m.

Wiring

•Solder terminals and quick-connect terminals (#110) are commonly

used for terminals.

•Be sure to use electrical wires that are a size appropriate for the

applied voltage and carry current (conductor size is 0.5 to 0.75

mm2). Perform soldering according to the conditions provided

below. If the soldering is not properly performed, the lead wires will

become detached, resulting in short-circuits.

1. Hand soldering: 350°C, within 3 s

2. Dip soldering: 350°C, within 3 s

Wait for one minute after soldering before exerting any external

force on the solder.

•Use non-corrosive resin fluid as the flux.

•Make sure that the electric cord is wired so that it does not touch

the Unit. If the electric cord touches the Unit, then electric wires with

a heat resistance of 100°C min. must be used.

•After wiring the Switch, maintain an appropriate clearance and

creepage distance.

Operating Environment

•This Switch is intended for indoor use only. Using the Switch

outdoors will cause the Switch to fail. If IP40 models are used in

locations subject to dust, metallic particles, or oil, be careful that

none of these penetrates the Switch.

•The IP65 model is designed with a degree of protection so that it

will not sustain damage if it is subjected to water from any direction

to the front of the panel.

•Do not use the Switch submersed in oil or water, or in locations

continuously subject to splashes of oil or water. Doing so may result

in oil of water entering the Switch.

Using the Microload

•Insert a contact protection circuit, if necessary, to prevent the

reduction of life expectancy due to extreme wear on the contacts

caused by loads where inrush current occurs when the contact is

opened and closed.

•The A16 allows both a standard load (125 V at 5A, 250 V at 3 A)

and a microload. If a standard load is applied, however, the

microload area cannot be used. If the microload area is used with a

standard load, the contact surface will become rough, and the

opening and closing of the contact for a microload may become

unreliable.

•The minimum applicable load is the N-level reference value. This

value indicates the malfunction reference level for the reliability

level of 60% (λ 60) (conforming to JIS C5003).

The equation, λ 60 = 0.5 × 10-4/operations indicates that the

estimated malfunction rate is less than 1/2,000,000 operations with

a reliability level of 60%.

LED

•The LED current-limiting resistor is built-in, so external resistance

is not required.

Others

•The oil-resistant IP65 uses NBR rubber and is resistant to general

cutting oil and cooling oil. Some particular oils cannot be used with

the oil-resistant IP65, however, so contact your OMRON

representative for details.

•The durability of the Switch depends in the switching conditions.

Always test the Switch under actual application conditions to

confirm applicability and use the Switch only for the number of

switching operations that will not affect performance.

Continuing to use the Switch with degraded performance will

eventually result insulation faults between circuits, burning of the

Switch, or other failures.

•If the panel is to be finished with coating, etc., make sure that the

panel meets the specified dimensions after the coating.

•Do not subject the Switch to extreme shock or vibration. Doing so

will cause malfunctions and damage to the Switch.

•Do not let sharp objects come into contact with the Switches that

are made of resin. Doing so will damage the Switches, causing

scratches on the outside of the operating parts, and malfunction.

When handling the Switches, do not throw or drop them.

WARNING

Precautions for Correct Use

Rated voltage Internal limiting resistor

5 VDC Red, yellow, white: 300 Ω

Green, blue, pure white: 160 Ω

12 VAC/VDC Red, yellow, white: 1 kΩ

Green, blue, pure white: 910 Ω

24 VAC/VDC 2.4 kΩ

Invalid

area

0.1 1 10 100 1,000

1 mA

0.15 mA

Current (mA)

Voltage (V)

Microload area

A16

•Rubber is used inside IP65 models. Do not allow the rubber to

become scratched or foreign matter to become attached to the

rubber.

Scratches and foreign matter will degrade the waterproofing, and

the Switch may fail operate correctly.

Screw-less Clamp Wiring Procedure

Connecting Wires

1. Strip the wires for 10 mm (allowable range: 10± 1 mm).

2. If braided wire is used, twist the wire to straighten it out.

3. Insert the wire into the insertion hole while pressing the release

button at the side of the hole. (Using a precision screwdriver is

recommended.)

4. Let go of the release button to lock the wire into place.

5. After locking, pull on the wire gently to confirm that it is securely

locked.

Removing Wires

1. Remove wires by pulling them while pressing the release button.

Note: When reusing wires that have already been locked one, cut off the end of

the wire and strip the wire again before using.

Precautions

1. The mounting panel thickness must be 0.5 to 3.2 mm.

2. The mounting ring must be tightened to a torque 0.29 to 0.49 N·m.

3. The procedure for making the mounting hole for the screw-less

clamp connector is described on page 21. A mounting dimension

of at least 33 mm is required, however, because the Switch is

removed with the screw-less clamp connector mounted to the

panel. If Switches are mounted side-by-side separated by less

than the specified distance, it may not be possible to remove the

Switch.

4. Be sure to mount the Case to the Switch with the correct

orientation. Mount with the dimple on the Case facing in the same

direction as the side of the Switch with the direction arrow or the

word TOP.

5. Bend the end of the wire if braided wire is used with the screw-

less clamp connector.

6. When wiring, insert the wire until it comes into contact with

something. After wiring is completed, pull on the wires to confirm

that they are connected securely.

7. After wiring, ensure that continuous pressure is not applied to the

terminals.

8. Refer to internal connection diagrams and confirm the terminal

numbers before wiring.

Do not allow the Switch

to drop and hit the

ground.

Do not place or drop

heavy objects on the

Switch.

Do not operate the Switch

with hard or sharp objects.

Screwdriver

Hammer

Switch

Direction arrow

Case

dimple

Switch

TOP mark

Case

dimple

A16

Panel Mounting

After mounting the Pushbutton Unit (i.e., the Pushbutton and the

Case) to the panel, snap in the Switch Unit (i.e., the Switch and the

Lamp) from the back of the panel.

Mounting to the Panel

•Insert the Pushbutton Unit into the front of the panel, and fix the lock

ring and mounting nut from the terminal side.

•Make sure that the lock ring is aligned with the thread of the Case

and the edge of the lock ring is touching the panel.

•Tighten the mounting nuts to a torque of 0.29 to 0.49 N·m.

Mounting the Switch Unit

•Snap on the Switch Unit to the Pushbutton Unit.

•Make sure that the Switch Unit has the correct orientation when

snapping it onto the Case. Align the dimple on the Case with the

groove between the case guards on the NC terminal side of the

Switch Unit in the way shown below, and push the Switch Unit into

the Case until it clicks into place. Confirm that the Switch Unit is

securely in place before using.

Removing the Switch Unit

•Grip the part between the Switch holder of the Case and the Switch

Unit using the A16Z-5080 Extractor, and pull to remove the Switch

Unit.

Note: Refer to page 21 for PCB terminals.

Engraving

Engraving the Legend Plate

•The characters must not be engraved deeper than 0.4 mm.

•Apply an alcohol-based paint coating, such as melamine,

phthalate, or acrylic resin paint coating.

Mounting and Replacing the Pushbutton

Removing and Mounting the Pushbutton

(1) Remove the Pushbutton as shown in the following diagram. If the

Pushbutton cannot be removed by hand, use the A3PJ-5080

Extractor.

(2) When mounting the Operation Unit to the Case, press the entire

surface of the Operation Unit to surface A of the Case as shown

in the following diagram.

Case

Panel

Mounting nut

Lock ring

Edge

Thread

dimple NC terminal

Groove between case guards

A16Z-5080 Extractor

Pushbutton

Case Surface A

Operation Unit

A16

Removing the Lamp

(1) Removing from the Pushbutton End

(2) Removing from the Switch End

The Lamp can be removed by hand once the Switch is removed

using the A16Z-5080 Extractor.

Installing the Lamp

•When mounting the Lamp, make sure it is facing the direction

shown in the following diagram. Insert the Lamp while matching the

protruding part of the Lamp and the small guides on the outer

surface of the Case.

•The Lamp can be mounted from the Pushbutton end by using the

A16Z-5080 Extractor.

The lamp can be mounted by following the opposite procedure for

removing the Lamp.

Mounting the A16Z Dust Cover

Mounting the A16Z Switch Guard

Lamp

Grip the Lamp with the

A16Z-5080 Extractor

and pull to remove.

Protruding part

Mounting nut

Switch Unit

Lock ring

Panel

Set

A16ZJ-5060

Cover A

(black)

Pushbutton Unit

Cover B

(transparent)

1. Separate the Dust Cover into 2 parts: cover A and cover B.

2. Insert the Case (Pushbutton Unit) into cover A.

3. Mount these parts together onto the panel.

4. From the back of the panel, mount the lock ring and secure with the

mounting nut.

5. Insert cover B into cover A. Ensure that the entire perimeter of cover B

is securely attached to cover A by pressing in different directions.

6. Mount the Switch Unit to the Case.

Note: Recommended panel thickness: 0.5 to 2 mm.

Switch Guard

Switch Unit

Mounting nut

Lock ring

Pushbutton Unit

Panel

1. Insert the Case (Pushbutton Unit) into the Switch Guard.

2. Mount these parts together onto the panel.

3. From the back of the panel, mount the lock ring and secure with the

mounting nut.

4. Attach the Switch Unit to the Case.

Note: Recommended panel thickness: 0.5 to 2 mm.

Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or

comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)

from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR

FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS

DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER

WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS

IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT

LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS

OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT

SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's

application or use of the products.

At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the

products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,

machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible

uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

•

Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

•

Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,

safety equipment, and installations subject to separate industry or government regulations.

•

Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE

SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND

INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.

However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or

establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual

specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the

result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON

Warranty and Limitations of Liability.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,

typographical, or proofreading errors, or omissions.

2009.12

In the interest of product improvement, specifications are subject to change without notice.

OMRON Corporation

Industrial Automation Company

http://www.ia.omron.com/