2 Pushbutton Switches/Pilot Lights A16/M16 Mounting Aperture of 16 mm H Modular construction (Pushbutton + Case + Lamp + Switch Unit) H “Snap-in” switch unit for quick and easy, tool-free assembly H Wide range of switching capacity from general to microload H High reliability IP65 or IP40 models H Short mounting depth, less than 28.5 mm below panel H Terminal layout simplifies common wiring H UL and CSA approved, VDE (pending) H Conforms to EN60943-5-1, IEC947-5-1 c Ordering Information J CONSTRUCTION Flange Shape Available Colors • For LED/incandescent Red, green, yellow, white, blue • For non-Illuminated Red, green, yellow, white, blue, black Lamp • LED • Incandescent lamp Protective Case and Terminal Type • Protective Structure IP40/Oil-resistant IP65 • Terminal Type Solder terminals (tab terminals #110) Switch Unit Specifications • Ratings 125 VAC: 5A 250 VAC: 3A 30 VDC 3A Minimum applicable load: 1 mA at 5 VDC Rectangular (A16j-J) Square (A16j-A) Round (A16j-T) (Actual color of yellow pushbuttons more closely resembles amber than true yellow.)
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2
Pushbutton Switches/Pilot Lights A16/M16
Mounting Aperture of 16 mm
H Modular construction (Pushbutton +Case + Lamp + Switch Unit)
H “Snap-in” switch unit for quick and easy,tool-free assembly
H Wide range of switching capacity fromgeneral to microload
H High reliability IP65 or IP40 models
H Short mounting depth, less than28.5 mm below panel
H Terminal layout simplifies commonwiring
H UL and CSA approved, VDE (pending)
H Conforms to EN60943-5-1, IEC947-5-1
c
Ordering InformationJ CONSTRUCTION
Flange Shape Available Colors
• For LED/incandescentRed, green, yellow, white, blue
• For non-IlluminatedRed, green, yellow, white, blue, black
Note: 1. To complete the part number, in place of thej symbol, specify the color code from the table below.2. Also described as Push-on / Push-off operation.
Operator Color Codes
(Actual color of yellow pushbuttons more closely resembles amber than true yellow.)
Code Color
R Red
Y Yellow
G Green
W White
A Blue
B Black
Note: Also described as Push-on/Push-off operation.
A16/M16 A16/M16
7
J PART NUMBER LEGEND M16 ASSEMBLED PILOT LIGHTS
M16j--J M16j--A M16j--T
M16 Part number nomenclature
R Red
Y Yellow
G Green
W White
A Blue
1 Enclosure RatingCode Description
None IP40
5 IP65 oil-resistant
3 Operator Color
Code Description
2 ShapeCode Shape Description
T Round Extended
A Square 2 directions, guarded
J Rectangular 2 directions, guarded
1 2 3 4
M16j-jjj
(Actual color of yellow pushbuttons moreclosely resembles amber than true yellow.)
Code Voltage
Operating Rated
T1 AC100V AC110V
T2 AC200V AC220V
Code Source Voltage
Operating Rated
5 Incandescent lamp AC/DC5V AC/DC6V
12 Incandescent lamp AC/DC12V AC/DC14V
24 Incandescent lamp AC/DC24V AC/DC24V
5D LED DC5V DC5V
12D LED DC12V DC12V
24D LED DC24V DC24V
4 Source of light
Transformer
A16/M16 A16/M16
8
J PART NUMBERS: PILOT LIGHTS (COMPLETE ASSEMBLY)
St l T V ltPart number
Style Type VoltageIP40 IP65 Oiltight
Round Full voltage LED (DC) 5 VDC M16--Tjjjj--5D M165--Tjjjj--5DRound Full voltage LED (DC)12 VDC M16--Tjjjj--12D M165--Tjjjj--12D24 VDC M16--Tjjjj--24D M165--Tjjjj--24D
Full voltage 5 V AC/DC M16--Tjjjj--5 M165--Tjjjj--5Full voltageincandescent lamp(AC/DC)
12 V AC/DC M16--Tjjjj--12 M165--Tjjjj--12(AC/DC)
24 V AC/DC M16--Tjjjj--24 M165--Tjjjj--24Transformer 24 V 110 VAC M16--Tjjjj--T1 M165--Tjjjj--T1Transformer 24 Vsecondary 220 VAC M16--Tjjjj--T2 M165--Tjjjj--T2
Square Full voltage LED (DC) 5 VDC M16--Ajjjj--5D M165--Ajjjj--5DSquare Full voltage LED (DC)12 VDC M16--Ajjjj--12D M165--Ajjjj--12D24 VDC M16--Ajjjj--24D M165--Ajjjj--24D
Full voltage 5 V AC/DC M16--Ajjjj--5 M165--Ajjjj--5Full voltageincandescent lamp(AC/DC)
12 V AC/DC M16--Ajjjj--12 M165--Ajjjj--12(AC/DC)
24 V AC/DC M16--Ajjjj--24 M165--Ajjjj--24Transformer 24 V 110 VAC M16--Ajjjj--T1 M165--Ajjjj--T1Transformer 24 Vsecondary 220 VAC M16--Ajjjj--T2 M165--Ajjjj--T2
Rectangular Full voltage LED (DC) 5 VDC M16--Jjjjj--5D M165--Jjjjj--5DRectangular Full voltage LED (DC)12 VDC M16--Jjjjj--12D M165--Jjjjj--12D24 VDC M16--Jjjjj--24D M165--Jjjjj--24D
Full voltage 5 V AC/DC M16--Jjjjj--5 M165--Jjjjj--5Full voltageincandescent lamp(AC/DC)
12 V AC/DC M16--Jjjjj--12 M165--Jjjjj--12(AC/DC)
24 V AC/DC M16--Jjjjj--24 M165--Jjjjj--24Transformer 24 V 110 VAC M16--Jjjjj--T1 M165--Jjjjj--T1Transformer 24 Vsecondary 220 VAC M16--Jjjjj--T2 M165--Jjjjj--T2
Note: To complete part number, in place of the j symbol, specify the color code from the Lens Color Code table below.
Lens Color Codes
(Actual color of yellow lens more closely resembles amber than true yellow.)
Code ColorR RedY YellowG GreenW WhiteA Blue
A16/M16 A16/M16
9
J PART NUMBER LEGEND A16 ILLUMINATED PUSHBUTTONS (COMPLETE ASSEMBLY)Part Number Nomenclature
Code Contact form Terminal
1 1C SPDT (See Note) Solder terminal
2 2C DPDT (See Note) Solder terminal
Code Voltage
Operating Rated
T1 AC100V AC110V
T2 AC200V AC220V
Code Source Voltage
Operating Rated
5 Incandescent lamp AC/DC5V AC/DC6V
12 Incandescent lamp AC/DC12V AC/DC14V
24 Incandescent lamp AC/DC24V AC/DC24V
5D LED DC5V DC5V
12D LED DC12V DC12V
24D LED DC24V DC24V
Code Color
R Red
G Green
Y Yellow
W White
A Blue
Code Shape
T Round
A Square
J Rectangular
A16 L -- -- --
Code Description
Blank IP40
5 IP65
1 Protective Code
A16
j1 2 3 4 5 6
2 Shape of Pushbutton unit
3 Operator Color
Code Function
M Momentary
A Alternate action
4 Operating Function
5 Source of light
Transformer
6 Contact form and terminal type
j j j j j
(Actual color of yellow pushbuttons moreclosely resembles amber than true yellow.)
Note: SPDT: Single Pole, Double ThrowDPDT: Double Pole, Double Throw
A16/M16 A16/M16
10
J PART NUMBERS: A16 ILLUMINATED PUSHBUTTONS (COMPLETE ASSEMBLY)
Part number
Style Illumination Voltage Contact Momentary Alternate actionStyle Illuminationmethod
Voltage ContactEnclosed (IP40) Oiltight (IP65) Enclosed (IP40) Oiltight (IP65)
Round LED (DC) 5V SPDT A16L--TjjjjM--5D--1 A165L--TjjjjM--5D--1 A16L--TjjjjA--5D--1 A165L--TjjjjA--5D--1Round LED (DC)
Note: To complete the part number, in place of the j symbol, specify the color code from the Operator Color Code table below.
Operator Color Codes(Actual color of yellow pushbuttons more closely resembles amber than true yellow.)
Code ColorR RedY YellowG GreenW WhiteA Blue
Note: 1. To order Illuminated pushbutton with 110 VAC transformer, replace the voltage code (5, 12, 24, 5D, 12D, 24D) with T1 for 110Vor T2 for 220V. The secondary voltage of the transformer is always 24V.
A16/M16 A16/M16
11
J ACCESSORIES (ORDER SEPARATELY)Name Shape Classification Remarks Part numberName Shape Classification Remarks Part number
Switch guards Rectangular Cannot be used with the DustCover.
A16ZJ-5050
Square and roundCover.
A16ZA-5050
Dust covers Rectangular Cannot be used with the SwitchC
A3BJ-5060
Square Cover. A3BA-5060
Round A3BT-5060
Panel plugs Rectangular Used for covering the panel A3BJ-3003Panel plugs
Square
Used for covering the panelcutouts for future panel expansion. A3BA-3003
Round A3BT-3003
J REPLACEMENTS
Name Shape Classification Remarks Part number
Legend panels Rectangular IP40 Opaque A single Legend Panel A16ZJ-5204Legend panels Rectangular IP40
Transparent
A single Legend Panel(transparent) is included with astandard model
A16ZJ-5202
Oil-resistant Opaquestandard model.
The Opaque Legend Panel canA16ZJ-5204Oil resistant
IP65 TransparentThe Opaque Legend Panel canbe used with the IP40 and A16ZJ-5203
Square IP40 Opaquebe used with the IP40 andoil-resistant IP65. A16ZA-5204Square IP40
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity2,000 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between eachterminal and ground1,000 VAC, 50/60 Hz for 1 min between lamp terminals (See Note 2)
Vibration resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Malfunction 150 m/s2 (15G) max. (malfunction within 1 ms)
Life expectancy Mechanical Momentary operation: 2,000,000 operations min.Alternating operation: 200,000 operations min.
Electrical 100,000 operations min.
Ambient temperature Operating: --10°C to 55°C (14°F to 131°F) with no icing or condensationStorage: --25°C to 65°C (-13°F to 149°F) with no icing or condensation
Ambient humidity Operating: 35% to 85%
Electric shock protection class Class II
Degree of contamination 3 (IEC947-5-1)
Weight Approx. 10 g (0.35 oz) in the case of a Illuminated DPDT switch with solder terminals
Note: 1. Set and reset constitute one operation.2. With LED and incandescent lamp not mounted.
Note: 1. Make sure the thickness of the mounting panel is between 0.5 and 3.2 mm. If, however, a Switch Guard or Dust Cover isused, the thickness of the mounting panel must be between 0.5 and 2 mm.
2. If a panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
18(0.71) 14.6
(0.57)
16 dia.+0.20
(0.63 )+0.0080
16 dia.+0.20
(0.63 )+0.0080
16 dia.+0.20
(0.63 )+0.0080
A16/M16 A16/M16
15
J INDICATORS WITHOUT TRANSFORMER
RectangularM16-J
Solder terminals (tab terminals #110)
SquareM16-A
Solder terminals (tab terminals #110)
RoundM16-T
Solder terminals (tab terminals #110)
Packing (t0.5)
Packing (t0.5)
Packing (t0.5)
Lamp terminal
Lamp terminal
Lamp terminal
Mounting nut
Mounting nut
Mounting nut
Lock ring
Lock ring
Lock ring
14.6 dia.18 dia.(0.71)
14.6 dia.
14.6 dia.(0.57) 18 dia.
(0.71)
18(0.71) 14.6
(0.57)
9.3(0.37)
28.5(1.12)
18(0.71)
15.1(0.59)
24(0.95)
21(0.83)
4.85(0.19)
9.3(0.37)
18 dia.(0.71)
28.5(1.12)
18(0.71) 15.1
(0.59)
4.85(0.19)
18(0.71)
15.1(0.59)
9.3(0.37)
28.5(1.12)
18(0.71)
4.85(0.19)
18(0.71)
Panel cutouts(Top View)
Panel cutouts(Top View)
Panel cutouts(Top View)
Note: 1. 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.
2. If a panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
19 min.(0.75)
19 min.(0.75)
19 min.(0.75)
24 min.(0.94)
19 min.(0.75)
19 min.(0.75)
16 dia.+0.20
(0.63 )+0.0080
16 dia.+0.20
(0.63 )+0.0080
16 dia.+0.20
(0.63 )+0.0080
A16/M16 A16/M16
16
Unit: mm (inch)
J LAMPS
LEDA16-5Dj/-12Dj/-24Dj
Incandescent LampA16-5/-12/-24
13 max.(0.51)
Cathode (-- )
Anode (+)Same asemittingcolor
6 dia.(0.24)
0.5 dia.
4 4
0.25
2.54(0.10)
2.54(0.10)
13 max.(0.51)
6 dia.(0.24)
J TERMINAL ARRANGEMENTNon-Illuminated Pushbutton Switches are also provided with lamp terminals.
Note: 1. The panel is 0.6 mm thick.2. The panel is made of the materials listed in the following table.
Color Degree of protection Materials
Polycarbonate resinTransparent
Opaque
Polyacrylate resin
Polyacrylate resinIP40
IP40
IP65
IP65
Note: The standard model is transparent.
18.9(0.74)
18.9(0.74)
0.6(0.02)
12.9(0.51)
12.9(0.51)
0.6(0.02)
12.9 dia(0.51)
13.4 dia(0.53)
0.6(0.02)
Screw Fitting
A3B-300460
(2.36)2(0.08)
18 dia.(0.71)
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.
SquareA3BA-3003
RoundA3BT-3003
RectangularA3BJ-3003 24
(0.94)
18 (0.71) 18 (0.71)
18(0.71)
18(0.71)
A16/M16 A16/M16
18
Lock FittingRough surface
Rough surface
15.8±0.1 dia.(0.62±0.004)
17.9±0.1(0.70±0.004)
17.9±0.1(0.70±0.004)
12x12(0.47 x 0.47)
15 0-0.1 dia.
(59 0-0.004
dia.)
2+0.20
t=1
Lamp unit extractorA16Z-5080 80
(3.15)
10(0.39)
8
20
212
(0.47)
A16/M16 A16/M16
19
Dimensions When Mounting AccessoriesUnit: mm (inch)
J SWITCH GUARDS
RectangularA16ZJ-5050
SquareA16ZA-5050
Panel Cutouts (Top View)
Note: The above illustration shows a case where 4.5 mm is provided for thedistance “x.” If no clearance is required for the “x” section, the verticalmounting dimension can be as small as 24 mm.Set this distance according to operating conditions.
Panel Cutouts (Top View)
Note: The above illustration shows a case where 4.5 mm is provided for thedistance “x.” If no clearance is required for the “x” section, the verticalmounting dimension can be as small as 24 mm.Set this distance according to operating conditions.
24.5 min.(0.96)
Guard (transparent)Holder (black)
28 min.(1.10)
16 dia.+0.20
28 min.(1.10)
19 min.(0.75)
Guard (transparent)Holder (black)
Torsion spring
Torsion spring
23.5(0.93)
24(0.94)
10.5(0.41)
18.1(0.71)
23.5(0.93)
10.5(0.41)
18(0.71)
18.1(0.71)
13(0.51)
28.5(1.12)
21.1
13(0.51)
28.5(1.12)
21.1
16 dia.+0.20
A16/M16 A16/M16
20
J DUST COVERS
RectangularA3BJ-5060
SquareA3BA-5060
Panel Cutouts
Panel Cutouts
RoundA16ZT-5050 Panel Cutouts
31 min.(1.22)
25 min.(0.98)
Cover A (transparent)Cover B (black)
25 min.(0.98)
Cover A (transparent)Cover B (black)
Cover A (transparent)Cover B (black)
30(1.18)
24(0.94)
28.5(1.12)
21.1(0.83)
13.8(0.54)
24(0.94)
28.5(1.12)
21.1(0.83)
13.8(0.54)
24(0.94)
25 min.(0.98)
28.5(1.12)
21.1(0.83)
13.8(0.54)
24 dia.(0.94)
25 min.(0.98)
25 min.(0.98)
16 dia.+0.20
(0.63 )+0.0080
16 dia.+0.20
(0.63 )+0.0080
16 dia.+0.20
(0.63 )+0.0080
A16/M16 A16/M16
21
InstallationJ MOUNTINGAfter mounting the Pushbutton Unit to the panel, snap in theSocket Unit from the back of the panel.
Panel mountingInsert the Pushbutton Unit into the front of the panel, and fix thelock ring and mounting nut from the terminal side.
Make sure that the lock ring is aligned with the thread of the caseand the edge of the lock ring is touching the panel.
Tighten the mounting nuts to a torque of 0.20 to 0.39 N •m (3 to5 kgf • cm).
The maximum tightening torque is 0.39 N •m (5 kgf • cm).
Case
PanelMounting nut
Lock ringEdge
Thread
Switch MountingSnap on the Switch Unit to the Pushbutton Unit.
Make sure the the Switch Unit is in the proper orientation whensnapping on to the Pushbutton Unit.
J SWITCH REMOVALGrip the part between the Switch holder of the case and theSwitch Unit using the A16Z-5080 Extractor, and pull to removethe Switch Unit.
A16Z-5080 Extractor
J REPLACEMENT PARTSRemoval and installation of the Operating Part
1. Remove the operating part as shown in the followingdiagram. If the operating part cannot be removed by hand,use the A3PJ-5080 Extractor.
Operating section
2. To attach the operating part, push until it clicks into place.
J REMOVING THE LAMPRemoving from the Operating Part End
Grip the Lamp with theA16Z-5080 Extractor andpull to remove.
Lamp
Removing from the Switch Unit EndThe Lamp can be removed by hand once the Switch is removedusing the A16Z-5080 Extractor.
J INSTALLING THE LAMPWhen mounting the Lamp, make sure it is facing the directionshown in the following diagram. Insert the Lamp while matchingthe protruding part of the Lamp and the small guides on the outersurface of the case.
Protruding part
The Lamp can be mounted from the operating part end by usingthe A16Z-5080 Extractor. The lamp can be mounted by followingthe opposite procedure for removing the Lamp.
A16/M16 A16/M16
22
PrecautionsWARNING
Do not apply a voltage between the incandescent lamp andthe terminal that is greater than the rated voltage. If the incan-descent lamp is broken, the operating part may pop out.Always turn OFF the power and wait for 10 minutes beforereplacing the incandescent lamp. If the lamp is replacedimmediately after the power is turnedOFF, the remaining heatmay cause burns.
J CORRECT USEMountingAlways 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 toolssuch as pointed-nose pliers. Doing so will damage the mountingnut. The tightening torque is 0.20 to 0.39 N •m (3 to 5 kgf • cm).
WiringSolder terminals and quick-connect terminals (#110) arecommonly used for terminals.
Be sure to use electrical wires that are a size appropriate for theapplied voltage and carry current (conductor size is 0.5 to 0.75mm2). Perform soldering according to the conditions providedbelow. If the soldering is not properly performed, the lead wireswill become detached, resulting in short-circuits.
1. Hand soldering: 30 W, within 5 s
2. Dip soldering: 240°C, within 3 s
Wait for one minute after soldering before exerting any externalforce on the solder.
Use non-corrosive resin fluid as the flux.
Make sure that the electric cord is wired so that it does not touchthe Unit. If the electric cord will touch the Unit, then electric wireswith a heat resistance of 100°C min. must be used.
After wiring the Switch, maintain an appropriate clearance andcreepage distance.
Operating EnvironmentThe IP65 model is designed with a protective structure so that itwill not sustain damage if it is subjected to water from anydirection to the front of the panel.
Using the MicroloadInsert a contact protection circuit, if necessary, to prevent thereduction of life expectancy due to extreme wear on the contactscaused by loads where inrush current occurs when the contact isopened and closed.
The A16 allows both a general-purpose load (125 V at 5A, 250 Vat 3 A) and a microload. If a general-purpose load is applied,however, the microload area cannot be used. If the microloadarea is used with a general-purpose load, the contact surface willbecome rough, and the opening and closing of the contact for amicroload may become unreliable.
The minimum applicable load is the N-level reference value. Thisvalue indicates the malfunction reference level for the reliabilitylevel of 60% (λ 60) (conforming to JIS C5003).
The equation, λ 60 = 0.5 x 10--4/time indicates that the estimatedmalfunction rate is less than 1/2,000,000 with a reliability level of60%.
Area of use
General-purpose load area
Microload areaInvalidarea
Voltage
(V)
Current (mA)
LEDsThe LED current-limiting resistor is built-in, so internal resistanceis not required.
Rated voltage Internal limiting resistor
5 VDC 33 Ω
12 VDC 270 Ω
24 VDC 1600 Ω
OthersThe oil-resistant IP65 uses NBR rubber and is resistant togeneral cutting oil and cooling oil. Some particular oils cannot beused with the oil-resistant IP65, however, so contact yourOMRON representative for details.
If the panel is to be finished with coating, etc., make sure that thepanel meets the specified dimensions after the coating.
Do not subject the Switch to extreme shock or vibration. Doing sowill cause malfunctions and damage to the Switch.
Do not let sharp objects come into contact with the Switches thatare made of resin. Doing so will damage the Switches, causingscratches on the outside of the operating parts, and malfunction.
When handling the Switches, do not throw or drop them.
Do not allow the Switchto drop and hit theground.
Do not place or dropheavy objects on theSwitch.
Do not operate the Switchwith hard or sharp objects.
Hammer Screwdriver
!
A16/M16 A16/M16
Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS LLCOne East Commerce DriveSchaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.