Complete Assemblies
2
Pushbutton Switches/Pilot Lights A16/M16
Mounting Aperture of 16 mm
HModular construction (Pushbutton +
Case + Lamp + Switch Unit)
H“Snap-in” switch unit for quick and easy,
tool-free assembly
HWide range of switching capacity from
general to microload
HHigh reliability IP65 or IP40 models
HShort mounting depth, less than
28.5 mm below panel
HTerminal layout simplifies common
wiring
HUL and CSA approved, VDE (pending)
HConforms to EN60943-5-1, IEC947-5-1
c
Ordering In
f
ormation
JCONSTRUCTION
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: 5 A
250 VAC: 3 A
30 VDC 3 A
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.)
A16/M16 A16/M16
3
Structure of Pushbutton
Lens
Legend plate
Dispersion plate
Reflective plunger
JMODELS
Item Shape Part number
Pushbutton Switches Rectangular A16-J
A165-J
Square A16-A
A165-A
Round A16-T
A165-T
Knob-type Selector Switches Rectangular A165S-J (Non-illuminated)
A165W-J (Illuminated)
Square A165S-A (Non-illuminated)
A165W-A (Illuminated)
Round A165S-T (Non-illuminated)
A165W-T (Illuminated)
A16/M16 A16/M16
4
Item Shape Part number
Key-type Selector Switches Rectangular A165K-J
Square A165K-A
Round A165K-T
Pilot Lights Rectangular M16-J
M165-J
Square M16-A
M165-A
Round M16-T
M165-T
Emergency Stop Switches A165E
Buzzers M2BJ-B
M2BJ-BH
A16/M16 A16/M16
5
JPART NUMBER LEGEND A16 NON-ILLUMINATED PUSHBUTTONS
(COMPLETE ASSEMBLY)
A16j-- J A16j-- A A16j-- T
A16 Part number nomenclature
1 Enclosure Rating
Code Description
None IP40
5 IP65 oil-resistant
3 Operator Color
Code Description
RRed
Y Yellow
G Green
WWhite
ABlue
B Black (for non-illuminated only)
2 Shape
Code Shape Description
T Round Extended
A Square 2 directions, guarded
J Rectangular 2 directions, guarded
12345
A16j-jjjj
(Actual color of yellow pushbuttons more
closely resembles amber than true yellow.)
4 Operating Function
Code Description
M Momentary
A Alternate action
Code Contact form Terminal
1 1C SPDT (See Note) Solder terminal
2 2C DPDT (See Note) Solder terminal
5 Contact form and terminal type
Note: SPDT: Single Pole, Double Throw
DPDT: Double Pole, Double Throw
A16/M16 A16/M16
6
JPART NUMBERS: NON--ILLUMINATED PUSHBUTTON SWITCHES (COMPLETE ASSEMBLY)
Part number
Description Shape Contact Momentary Alternateaction(SeeNote2.)
p
p
Enclosed (IP40) Oiltight (IP65) Enclosed (IP40) Oiltight (IP65)
Non--Illuminated
Standard Button
Round SPDT A16--TjM--1 A165--TjM--1 A16--TjA--1 A165--TjA--1
DPDT A16--TjM--2 A165--TjM--2 A16--TjA--2 A165--TjA--2
Square SPDT A16--AjM--1 A165--AjM--1 A16--AjA--1 A165--AjA--1
Rectangular
DPDT A16--AjM--2 A165--AjM--2 A16--AjA--2 A165--AjA--2
Rectangular SPDT A16--JjM--1 A165--JjM--1 A16--JjA--1 A165--JjA--1
Rectangular
DPDT A16--JjM--2 A165--JjM--2 A16--JjA--2 A165--JjA--2
Note: 1. To complete the part number, in place of the jsymbol, 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
RRed
YYellow
GGreen
WWhite
ABlue
BBlack
Note: Also described as Push-on/Push-off operation.
A16/M16 A16/M16
7
JPART NUMBER LEGEND M16 ASSEMBLED PILOT LIGHTS
M16j-- J M16j-- A M16j-- T
M16 Part number nomenclature
RRed
Y Yellow
G Green
WWhite
ABlue
1 Enclosure Rating
Code Description
None IP40
5 IP65 oil-resistant
3 Operator Color
Code Description
2 Shape
Code Shape Description
T Round Extended
A Square 2 directions, guarded
J Rectangular 2 directions, guarded
1234
M16j-jjj
(Actual color of yellow pushbuttons more
closely resembles amber than true yellow.)
Code Voltage
Operating Rated
T1 AC100V AC110V
T2 AC200V AC220V
Code Source Voltage
Operating Rated
5D LED DC5V DC5V
12D LED DC12V DC12V
24D LED DC24V DC24V
4 Source of light
Transformer
A16/M16 A16/M16
8
JPART NUMBERS: PILOT LIGHTS (COMPLETE ASSEMBLY)
S
t
l
T
V
l
t
Part number
Style Type Voltage IP40 IP65 Oiltight
Round Full voltage LED (DC) 5VDC M16--Tj-- 5 D M165--Tj-- 5 D
g
(
)
12 VDC M16--Tj--12D M165--Tj--12D
24 VDC M16--Tj--24D M165--Tj--24D
Transformer 24 V
d
110 VAC M16--Tj-- T 1 M165--Tj-- T 1
secondary 220 VAC M16--Tj-- T 2 M165--Tj-- T 2
Square Full voltage LED (DC) 5VDC M16--Aj-- 5 D M165--Aj-- 5 D
q
g
(
)
12 VDC M16--Aj--12D M165--Aj--12D
24 VDC M16--Aj--24D M165--Aj--24D
Transformer 24 V
d
110 VAC M16--Aj-- T 1 M165--Aj-- T 1
secondary 220 VAC M16--Aj-- T 2 M165--Aj-- T 2
Rectangular Full voltage LED (DC) 5VDC M16--Jj-- 5 D M165--Jj-- 5 D
g
g
(
)
12 VDC M16--Jj--12D M165--Jj--12D
24 VDC M16--Jj--24D M165--Jj--24D
Transformer 24 V
d
110 VAC M16--Jj-- T 1 M165--Jj-- T 1
secondary 220 VAC M16--Jj-- T 2 M165--Jj-- T 2
Note: To complete part number, in place of the jsymbol, 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 Color
RRed
YYellow
GGreen
WWhite
ABlue
A16/M16 A16/M16
9
JPART 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
5D LED DC5V DC5V
12D LED DC12V DC12V
24D LED DC24V DC24V
Code Color
RRed
G Green
Y Yellow
WWhite
ABlue
Code Shape
T Round
A Square
J Rectangular
A 1 6 L -- -- --
Code Description
Blank IP40
5IP65
1ProtectiveCode
A16
j
123456
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
jjj j j
(Actual color of yellow pushbuttons more
closely resembles amber than true yellow.)
Note: SPDT: Single Pole, Double Throw
DPDT: Double Pole, Double Throw
A16/M16 A16/M16
10
JPART NUMBERS: A16 ILLUMINATED PUSHBUTTONS (COMPLETE ASSEMBLY)
Part number
Style Illumination Voltage Contact Momentary Alternate action
S
t
l
e
I
l
l
u
m
i
n
a
t
i
o
n
method
V
o
l
t
a
g
e
C
o
n
t
a
t
Enclosed (IP40) Oiltight (IP65) Enclosed (IP40) Oiltight (IP65)
Round LED (DC) 5V SPDT A16L--TjM--5D--1 A165L--TjM--5D--1 A16L--TjA--5D--1 A165L--TjA--5D--1
R
o
u
n
d
L
E
D
(
D
C
)
12V
S
P
D
T
A16L--TjM--12D--1 A165L--TjM--12D--1 A16L--TjA--12D--1 A165L--TjA--12D--1
24V A16L--TjM--24D--1 A165L--TjM--24D--1 A16L--TjA--24D--1 A165L--TjA--24D--1
LED (DC) 5V DPDT A16L--TjM--5D--2 A165L--TjM--5D--2 A16L--TjA--5D--2 A165L--TjA--5D--2
L
E
D
(
D
C
)
12V
D
P
D
T
A16L--TjM--12D--2 A165L--TjM--12D--2 A16L--TjA--12D--2 A165L--TjA--12D--2
24V A16L--TjM--24D--2 A165L--TjM--24D--2 A16L--TjA--24D--2 A165L--TjA--24D--2
Square LED (DC) 5V SPDT A16L--AjM--5D--1 A165L--AjM--5D--1 A16L--AjA--5D--1 A165L--AjA--5D--1
S
q
u
a
r
e
L
E
D
(
D
C
)
12V
S
P
D
T
A16L--AjM--12D--1 A165L--AjM--12D--1 A16L--AjA--12D--1 A165L--AjA--12D--1
24V A16L--AjM--24D--1 A165L--AjM--24D--1 A16L--AjA--24D--1 A165L--AjA--24D--1
LED (DC) 5V DPDT A16L--AjM--5D--2 A165L--AjM--5D--2 A16L--AjA--5D--2 A165L--AjA--5D--2
L
E
D
(
D
C
)
12V
D
P
D
T
A16L--AjM--12D--2 A165L--AjM--12D--2 A16L--AjA--12D--2 A165L--AjA--12D--2
24V A16L--AjM--24D--2 A165L--AjM--24D--2 A16L--AjA--24D--2 A165L--AjA--24D--2
Rectangular LED (DC) 5V SPDT A16L--JjM--5D--1 A165L--JjM--5D--1 A16L--JjA--5D--1 A165L--JjA--5D--1
R
e
t
a
n
g
u
l
a
r
L
E
D
(
D
C
)
12V
S
P
D
T
A16L--JjM--12D--1 A165L--JjM--12D--1 A16L--JjA--12D--1 A165L--JjA--12D--1
24V A16L--JjM--24D--1 A165L--JjM--24D--1 A16L--JjA--24D--1 A165L--JjA--24D--1
LED (DC) 5V DPDT A16L--JjM--5D--2 A165L--JjM--5D--2 A16L--JjA--5D--2 A165L--JjA--5D--2
L
E
D
(
D
C
)
12V
D
P
D
T
A16L--JjM--12D--2 A165L--JjM--12D--2 A16L--JjA--12D--2 A165L--JjA--12D--2
24V A16L--JjM--24D--2 A165L--JjM--24D--2 A16L--JjA--24D--2 A165L--JjA--24D--2
Note: To complete the part number, in place of the jsymbol, 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 Color
RRed
YYellow
GGreen
WWhite
ABlue
Note: 1. To order Illuminated pushbutton with 110 VAC transformer, replace the voltage code (5, 12, 24, 5D, 12D, 24D) with T1 for 110V
or T2 for 220V. The secondary voltage of the transformer is always 24V.
A16/M16 A16/M16
11
JACCESSORIES (ORDER SEPARATELY)
N
a
m
e
S
h
a
p
e
C
l
a
s
s
i
f
i
c
a
t
i
o
n
R
e
m
a
r
k
s
P
a
r
t
n
u
m
b
e
r
Name Shape Classi
f
ication Remarks Part number
Switch guards Rectangular Cannot be used with the Dust
Cover.
A16ZJ-5050
Square and round
C
o
v
e
r
.
A16ZA-5050
Dust covers Rectangular Cannot be used with the Switch
C
A3BJ-5060
Square Cover. A3BA-5060
Round A3BT-5060
Panel plugs Rectangular Used for covering the panel
f
f
l
i
A3BJ-3003
p
g
Square
g
p
cutouts for future panel expansion. A3BA-3003
Round A3BT-3003
JREPLACEMENTS
Name Shape Classification Remarks Part number
Legend panels Rectangular IP40 Opaque A single Legend Panel A16ZJ-5204
g
p
g
Transparent
g
g
(transparent) is included with a
s
t
a
n
d
a
r
d
m
o
d
e
l
A16ZJ-5202
Oil-resistant Opaque s
t
an
d
ar
d
mo
d
e
l
.
T
h
e
O
p
a
q
u
e
L
e
g
e
n
d
P
a
n
e
l
c
a
n
A16ZJ-5204
IP65 Transparent The
O
paque Legend Panel can
be used with the IP40 and A16ZJ-5203
Square IP40 Opaque
b
e
u
s
e
d
w
i
t
h
t
h
e
I
P
4
0
a
n
d
oil-resistant IP65. A16ZA-5204
q
Transparent A16ZA-5202
Oil-resistant Opaque A16ZA-5204
IP65 Transparent A16ZA-5203
Round IP40 Opaque A16ZT-5204
Transparent A16ZT-5202
Oil-resistant Opaque A16ZT-5204
IP65 Transparent A16ZT-5203
Color caps
f
LED indicator/incandescent
/
White Insert one of the following letters A16Zj-5001W
p
(for IP40)
/
lamp/non-illuminated Red
g
into the box (j).
J
R
t
l
A16Zj-5001R
Rectangular Yellow J: Rectangular
A
:
S
q
u
a
r
e
A16Zj-5001Y
LED indicator Green
A
:
S
quare
T: Round A16Zj-5001GY
Incandescent lamp/non-illu- Blue
T
:
R
o
u
n
d
The Color Cap is usually A16Zj-5001A
p
/
minated Green
T
h
e
C
o
l
o
r
C
a
p
i
s
u
s
u
a
l
l
y
supplied. Replace the Cap if the
c
o
l
o
r
i
s
t
o
b
e
c
h
a
n
g
e
d
A16Zj-5001G
Square Non-illuminated Black color is to be changed.
W
h
e
n
u
s
i
n
g
a
n
L
E
D
i
n
d
i
c
a
t
o
r
b
e
A16Zj-5011B
Color caps
f
LED indicator/incandescent
/
White
W
hen using an LED indicator, be
s
u
r
e
t
o
u
s
e
a
C
o
l
o
r
C
a
p
t
h
a
t
A16Zj-5101W
p
(for oil-resistant
I
P
6
5
)
/
lamp/
n
o
n
-
i
l
l
u
m
i
n
a
t
e
d
Red
s
u
r
e
t
o
u
s
e
a
C
o
l
o
r
C
a
p
t
h
a
t
matches the luminescent color of
t
h
L
E
D
A16Zj-5101R
I
P
6
5
)
R
d
non-
i
l
l
um
i
na
t
e
d
Yellow the LED. A16Zj-5101Y
Round LED indicator Green The materials used for the IP40
a
n
d
o
i
l
-
r
e
s
i
s
t
a
n
t
I
P
6
5
a
r
e
A16Zj-5101GY
Incandescent lamp/non-illu- Blue an
d
o
i
l
-res
i
s
t
an
t
I
P
6
5
are
di
f
f
erent so be sure to use a A16Zj-5101A
p
/
minated Green
d
i
f
f
e
r
e
n
t
s
o
b
e
s
u
r
e
t
o
u
s
e
a
Color Cap that matches the
s
p
e
c
i
f
i
c
a
t
i
o
n
s
o
f
t
h
e
S
w
i
t
c
h
A16Zj-5101G
Non-illuminated Black speci
f
ications o
f
the Switch. A16Zj-5111B
A16/M16 A16/M16
12
JTOOLS
Name Shape Applicable types Remarks Part
b
p
Pushbutton
Switch
Knob-type
Selector
Switch
Key-type
Selector
Switch
E-Stop
Switch
Indicator number
Pushbutton
switch
extractor
Yes No No No Yes Convenient for
extracting
Pushbutton
Switches
A3PJ-5080
Screw
fitting
Yes Yes Yes Yes Yes Convenient for
ganged installation.
Tighten to a torque
of 0.39 N •m(5kgf
•cm) min.
A3B-3004
Lamp unit
extractor
Yes Yes Yes Yes Yes Convenient for
extracting the
Switch Unit and
Lamps.
A16Z-5080
Speci
f
ications
JCHARACTERISTICS
Item
Allowable operating
frequency
Mechanical Momentary operation: 120 operations/min max.
Alternating operation: 60 operations/min max. (See Note 1)
e
q
u
e
c
y
Electrical 20 operations/min max.
Insulation resistance 100 MΩmin. (at 500 VDC)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,000 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between each
terminal and ground
1,000 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)
Shock resistance Mechanical 500 m/s2(50G)
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°Cto55°C(14°F to 131°F) with no icing or condensation
Storage: --25°Cto65°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.
JAPPROVED STANDARDS
Recognized organization Standards File No.
UL, cUL (See Note) UL508 E41515
ASTA EN60947-5-1 —
Note: UL: CSA C22 No. 14
A16/M16 A16/M16
13
JRATINGS
AC resistive load (AC15) DC resistive load (DC13)
3 A, 250 VAC
5 A, 125 VAC
3A,30VDC
Minimum applicable load: 1 mA at 5 VDC
Rated values are obtained from tests conducted under the following conditions according to JIS C4505 and C4520.
1. Load: Resistive load
2. Mounting conditions: No vibration and no shock
3. Temperature: 20°±2°C
4. Operating frequency: 20 operations/min
Contact
Name Contact
SPDT
LED
Rated voltage Rated current Operating voltage Internal limiting resistor
5VDC 30 mA 5VDC±5% 33 Ω
12 VDC 15 mA 12 VDC±5% 270 Ω
24 VDC 10 mA 24 VDC±5% 1600 Ω
JOPERATING CHARACTERISTICS
Type Pushbutton Switch
T
y
p
e
IP40 Oil-resistant IP65
SPDT DPDT SPDT DPDT
Operating force (OF) max. 2.45 N (250 gf) 4.41 N (450 gf) 2.94 N (300 gf) 4.91 N (500 gf)
Releasing force (RF) min. 0.29 N (30 gf)
Totaltravel(TT) Approx. 3 mm
Pretravel (PT) max. 2.5 mm
Lock stroke (LTA) min. (See Note) 0.5 mm
Note: Lock stroke is only for alternating operation.
A16/M16 A16/M16
14
Dimensions
Unit: mm (inch)
JILLUMINATED/NON-ILLUMINATED PUSHBUTTON SWITCHES WITHOUT TRANSFORMER
The lamp terminal is also provided with non-Illuminated models.
Solder terminals and tab terminals (#110) can be both used with Illuminated and Non-Illuminated Pushbutton Switches.
Rectangular
A16j-J
Solder terminals (tab terminals #110) Panel Cutouts
Square
A16j-A
Solder terminals (tab terminals #110)
Panel Cutouts
Round
A16j-T
Solder terminals (tab terminals #110)
Panel Cutouts
Lamp terminal
Mounting nut
Packing (t0.5)
(for oil-resistant IP65 only)
Lock ring
Lamp terminals
24 min.
(0.94)
19 min.
(0.75)
Lamp terminals
Mounting nut
Lock ring
Lamp terminals
Packing (t0.5)
(for oil-resistant IP65 only)
Lamp terminals
Lamp terminals
Packing (t0.5)
(for oil-resistant IP65 only)
Mounting nut
Lock ring
28.5
(1.12)
9.3
(0.37)
18
(0.71)
18
(0.71) 15.1
(0.59)
21
(0.83)
24
(0.94)
15.8
(0.62)
28.5
(1.12)
9.3
(0.37)
18
(0.71)
15.8
(0.62)
19 min.
(0.75)
19 min.
(0.75)
18
(0.71) 15.1
(0.59)
18
(0.71)
15.1
(0.59)
15.8
(0.62)
28.5
(1.12)
9.3
(0.37)
18
(0.71)
19 min.
(0.75)
19 min.
(0.75)
18
(0.71)
18
(0.71)
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.
18
(0.71) 14.6
(0.57)
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
A16/M16 A16/M16
15
JINDICATORS WITHOUT TRANSFORMER
Rectangular
M16-J
Solder terminals (tab terminals #110)
Square
M16-A
Solder terminals (tab terminals #110)
Round
M16-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.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
A16/M16 A16/M16
16
Unit: mm (inch)
JLAMPS
LED
A16-5Dj/-12Dj/-24Dj
Incandescent Lamp
A16-5/-12/-24
13 max.
(0.51) Cathode (--)
Anode (+)
Same as
emitting
color
6dia.
(0.24)
0.5 dia.
44
0.25
2.54
(0.10)
2.54
(0.10)
13 max.
(0.51)
6dia.
(0.24)
JTERMINAL ARRANGEMENT
Non-Illuminated Pushbutton Switches are also provided with lamp terminals.
SPDT Switches
Illuminated type
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
DPDT Switches
Illuminated type
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
Pilot lights
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
Lamp terminal Lamp terminal
10.8
(0.43)
4
(0.16)
14.6 dia.
(0.57)
18 dia.
(0.71)
Lamp terminal
7.4
(0.29)
12.2
(0.48)
18
(0.71)
7.4
(0.29)
12.2
(0.48)
18
(0.71)
7.4
(0.29)
A16/M16 A16/M16
17
JACCESSORIES, TOOLS, AND COMPONENTS
Pushbutton
switch extractor
A3PJ-5080
20
(0.79)
15
(0.59)
10
(0.39)
50
(1.97)
25
(0.98)
Legend Panels
A16ZJ-520jA16ZA-520jA16ZT-520j
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 resin
Transparent
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-3004
60
(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.
Square
A3BA-3003
Round
A3BT-3003
Rectangular
A3BJ-3003 24
(0.94)
18 (0.71) 18 (0.71)
18
(0.71)
18
(0.71)
A16/M16 A16/M16
18
Lock Fitting
Rough 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+0.2
0
t=1
Lamp unit extractor
A16Z-5080 80
(3.15)
10
(0.39)
8
20
2
12
(0.47)
A16/M16 A16/M16
19
Dimensions When Mounting Accessories
Unit: mm (inch)
JSWITCH GUARDS
Rectangular
A
16ZJ-5050
Square
A16ZA-5050
Panel Cutouts (Top View)
Note: The above illustration shows a case where 4.5 mm is provided for the
distance “x.” If no clearance is required for the “x” section, the vertical
mounting 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 the
distance “x.” If no clearance is required for the “x” section, the vertical
mounting 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.
+0.2
0
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.
+0.2
0
A16/M16 A16/M16
20
JDUST COVERS
Rectangular
A3BJ-5060
Square
A3BA-5060
Panel Cutouts
Panel Cutouts
Round
A16ZT-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.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
A16/M16 A16/M16
21
Installation
JMOUNTING
After mounting the Pushbutton Unit to the panel, snap in the
Socket Unit from the back of the panel.
Panel mounting
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 0.20 to 0.39 N •m(3to
5kgf•cm).
The maximum tightening torque is 0.39 N •m(5kgf•cm).
Case
Panel
Mounting nut
Lock ring
Edge
Thread
Switch Mounting
Snap on the Switch Unit to the Pushbutton Unit.
Make sure the the Switch Unit is in the proper orientation when
snapping on to the Pushbutton Unit.
JSWITCH REMOVAL
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.
A16Z-5080 Extractor
JREPLACEMENT PARTS
Removal and installation of the Operating Part
1. Remove the operating part as shown in the following
diagram. 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.
JREMOVING THE LAMP
Removing from the Operating Part End
GriptheLampwiththe
A16Z-5080 Extractor and
pull to remove.
Lamp
Removing from the Switch Unit End
The Lamp can be removed by hand once the Switch is removed
using the A16Z-5080 Extractor.
JINSTALLING 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.
Protruding part
The Lamp can be mounted from the operating part end by using
the A16Z-5080 Extractor. The lamp can be mounted by following
the opposite procedure for removing the Lamp.
A16/M16 A16/M16
22
Precautions
WARNING
Do not apply a voltage between the incandescent lamp and
the 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 before
replacing the incandescent lamp. If the lamp is replaced
immediately after the power is turned OFF, the remaining heat
may cause burns.
JCORRECT USE
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 0.20 to 0.39 N •m(3to5kgf•cm).
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: 30 W, within 5 s
2. Dip soldering: 240°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 will touch 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
The IP65 model is designed with a protective structure so that it
will not sustain damage if it is subjected to water from any
direction to the front of the panel.
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 general-purpose load (125 V at 5A, 250 V
at 3 A) and a microload. If a general-purpose load is applied,
however, the microload area cannot be used. If the microload
area is used with a general-purpose 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% (λ60) (conforming to JIS C5003).
The equation, λ60 = 0.5 x 10-- 4 /time indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of
60%.
Area of use
General-purpose load area
Microload area
Invalid
area
Voltage (V)
Current (mA)
LEDs
The LED current-limiting resistor is built-in, so internal resistance
is not required.
Rated voltage Internal limiting resistor
5VDC 33 Ω
12 VDC 270 Ω
24 VDC 1600 Ω
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.
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.
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.
Hammer Screwdriver
!
Complete Assemblies
23
Knob-Type Selector Switch A165S/W
Mounting Aperture of 16 mm
H2-piece construction requires no tools
HOil-resistant IP65 models
HShort mounting depth, less than
28.5 mm below panel
HWide range of switching capacity from
general to microload
HIlluminated and non-illuminated models
H2 and 3-position models
HMaintained and spring return reset
HUL and CSA approved
HConforms to EN60947-5-1, IEC947-5-1
c
Ordering In
f
ormation
JCONSTRUCTION
Flange Shape Available Colors
•For LED
Red, green, yellow
Protective Case and Terminal Type
•Protective Structure
Oil-resistant IP65
•Terminal Type
Solder terminals
(tab terminals #110)
Switch Unit Specifications
•General-purpose Loads
125 VAC: 5 A
250 VAC: 3 A
30 VDC 3 A
Minimum applicable load: 1 mA at 5 VDC
Number of Positions and Reset
Method
•2 Positions
Maintained
Spring return
•3 Positions
Maintained
Spring return
Lamp
•LED
A165S/W A165S/W
24
JPART NUMBER LEGEND A165 SELECTOR SWITCH (COMPLETE ASSEMBLY)
1 IIluminated/Non-IIluminated
Code Description
S Non-IIluminated
W IIluminated
3 Number of Positions/Reset Method
Code Description
2M 2 Positions/Maintained
2A 2 Positions/Spring return
3M 3 Positions/Maintained
3A 3 Positions/Spring return
4 Operator Color
Code Description
None Non-IIluminated (black)
RRed
G Green
Y Yellow
Code Description
J Rectangular
A Square
T Round
2 Flange Shape
A165j-jjj-j-j
123456
Code Description
24D 24 VDC +/- 5%
TRANSFORMER
Code Description
None Without Transformer
T1 110 VAC
T2 220 VAC
5 Operating Voltage (Rated Voltage)
LED
6 Contacts
Code Description
1 SPDT
2DPDT
(Actual color of yellow operators more
closely resemble amber than true yellow.)
A165S/W A165S/W
25
JPART NUMBERS: A165S ASSEMBLED NON-ILLUMINATED KNOB-TYPE SELECTOR SWITCH
(COMPLETE ASSEMBLY)
Shape Number of positions Contact Reset method Part number
Round 2 positions SPDT Maintained A165S-T2M-1
R
o
u
n
d
p
Spring return (right) A165S-T2A-1
DPDT Maintained A165S-T2M-2
Spring return (right) A165S-T2A-2
3 positions Maintained A165S-T3M-2
p
Spring return (both) A165S-T3A-2
S
q
uare 2 positions SPDT Maintained A165S-A2M-1
S
q
u
a
r
e
p
Spring return (right) A165S-A2A-1
DPDT Maintained A165S-A2M-2
Spring return (right) A165S-A2A-2
3 positions Maintained A165S-A3M-2
p
Spring return (both) A165S-A3A-2
Rectan
g
ular 2 positions SPDT Maintained A165S-J2M-1
R
e
c
t
a
n
g
u
l
a
r
p
Spring return (right) A165S-J2A-1
DPDT Maintained A165S-J2M-2
Spring return (right) A165S-J2A-2
3 positions Maintained A165S-J3M-2
p
Spring return (both) A165S-J3A-2
A165S/W A165S/W
26
JA165W ILLUMINATED (2 POSITION) KNOB-TYPE SELECTOR SWITCH (COMPLETE
ASSEMBLY)
Description Part number
Appearance Type Rated voltage Contacts Maintained Spring return from right
Round Full voltage
LED (DC)
24 VDC SPDT A165W-T2Mj-24D-1 A165W-T2Aj-24D-1
Transformer 24 V
S
d
110 VAC A165W-T2Mj-T1-1 A165W-T2Aj-T1-1
Secondary 220 VAC A165W-T2Mj-T2-1 A165W-T2Aj-T2-1
Full voltage
LED (DC)
24 VDC DPDT A165W-T2Mj-24D-2 A165W-T2Aj-24D-2
Transformer 24 V
S
d
110 VAC A165W-T2Mj-T1-2 A165W-T2Aj-T1-2
Secondary 220 VAC A165W-T2Mj-T2-2 A165W-T2Aj-T2-2
Square Full voltage
LED (DC)
24 VDC SPDT A165W-A2Mj-24D-1 A165W-A2Aj-24D-1
Transformer 24 V
S
d
110 VAC A165W-A2Mj-T1-1 A165W-A2Aj-T1-1
Secondary 220 VAC A165W-A2Mj-T2-1 A165W-A2Aj-T2-1
Full voltage
LED (DC)
24 VDC DPDT A165W-A2Mj-24D-2 A165W-A2Aj-24D-2
Transformer 24 V
S
d
110 VAC A165W-A2Mj-T1-2 A165W-A2Aj-T1-2
Secondary 220 VAC A165W-A2Mj-T2-2 A165W-A2Aj-T2-2
Rectangular Full voltage
LED (DC)
24 VDC SPDT A165W-J2Mj-24D-1 A165W-J2Aj-24D-1
Transformer 24 V
S
d
110 VAC A165W-J2Mj-T1-1 A165W-J2Aj-T1-1
Secondary 220 VAC A165W-J2Mj-T2-1 A165W-J2Aj-T2-1
Full voltage
LED (DC)
24 VDC DPDT A165W-J2Mj-24D-2 A165W-J2Aj-24D-2
Transformer 24 V
S
d
110 VAC A165W-J2Mj-T1-2 A165W-J2Aj-T1-2
Secondary 220 VAC A165W-J2Mj-T2-2 A165W-J2Aj-T2-2
Note: To complete the part number, replace the jsymbol with the appropriate 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 Color
RRed
YYellow
GGreen
A165S/W A165S/W
27
JA165W ILLUMINATED (3 POSITION) KNOB-TYPE SELECTOR SWITCH (COMPLETE
ASSEMBLY)
Description Part number
Appearance Type Rated voltage Contacts Maintained Spring return from both
Round Full voltage
LED (DC)
24 VDC DPDT A165W-T3Mj-24D-2 A165W-T3Aj-24D-2
Transformer 24 V
Secondar
y
110 VAC A165W-T3Mj-T1-2 A165W-T3Aj-T1-2
S
e
c
o
n
d
a
r
y
220 VAC A165W-T3Mj-T2-2 A165W-T3Aj-T2-2
Square Full voltage
LED (DC)
24 VDC DPDT A165W-A3Mj-24D-2 A165W-A3Aj-24D-2
Transformer 24 V
Secondary
110 VAC A165W-A3Mj-T1-2 A165W-A3Aj-T1-2
S
e
c
o
n
d
a
r
y
220 VAC A165W-A3Mj-T2-2 A165W-A3Aj-T2-2
Rectangular Full voltage
LED (DC)
24 VDC DPDT A165W-J3Mj-24D-2 A165W-J3Aj-24D-2
Transformer 24 V
Secondary
110 VAC A165W-J3Mj-T1-2 A165W-J3Aj-T1-2
S
e
c
o
d
a
y
220 VAC A165W-J3Mj-T2-2 A165W-J3Aj-T2-2
Note: To complete the part number, replace the jsymbol with the appropriate 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 Color
RRed
YYellow
GGreen
A165S/W A165S/W
28
Accessories (Order Separately)
JPANEL PLUGS
Shape Classification Remarks Part number
Rectangular Used for covering the panel
f
f
l
i
A3BJ-3003
Square
g
p
cutouts for future panel expansion. A3BA-3003
Round A3BT-3003
JTOOLS
Name Shape Applicable types Remarks Part
b
p
Pushbutton
Switch
Knob-type
Selector
Switch
Key-type
Selector
Switch
Emer-
gency
Stop
Switch
Pilot Light number
Screw
fitting
Yes Yes Yes Yes Yes Convenient for
ganged installation.
Tighten to a torque of
0.39 N •m
(5 kgf •cm) min.
A3B-3004
Extractor Yes Yes Yes Yes Yes Convenient for
extracting the Switch
Unit and Lamps.
A16Z-5080
Speci
f
ications
JAPPROVED STANDARDS
UL, cUL (File No. E41515)
5 A at 125 VAC, 3 A at 250 VAC (general use)
3 A at 30 VDC (resistive)
EN60947-5-1 (Low Voltage Directive)
JRATINGS
AC resistive load (AC15) DC resistive load (DC13)
3 A, 250 VAC
5 A, 125 VAC
3A,30VDC
Minimum applicable load: 1 mA at 5 VDC
Rated values are obtained from tests conducted under the following conditions according to JIS C4505 and C4520.
1. Load: Resistive load
2. Mounting conditions: No vibration and no shock
3. Temperature: 20°±2°C (68F°±3.6F°)
4. Operating frequency: 20 times/min
JCONTACT
Name Contact
SPDT
JLED
Rated voltage Rated current Operating voltage Internal limiting resistor
24 VDC 10 mA 24 VDC±5% 1600 Ω
A165S/W A165S/W
29
JCHARACTERISTICS
Item Knob-type Selector Switch
Allowable operating
f
r
e
q
u
e
n
c
y
Mechanical 20 operations/min max.
f
requency
(See Note 1.) Electrical 10 operations/min max.
Insulation resistance 100 MΩmin. (at 500 VDC)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,000 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between each
terminal and ground
1,000 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)
Shock resistance Mechanical 500 m/s2(50G)
Malfunction 150 m/s2(15G) max. (malfunction within 1 ms)
Life expectancy Mechanical 250,000 operations min.
p
y
Electrical 100,000 operations min.
Ambient temperature Operating: --10°Cto55°C(14°F to 131°F) with no icing or condensation
Storage: --25°Cto65°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. 13 g (0.46 oz) in the case of a Illuminated DPDT switch
Note: 1. Set and reset constitute one operation.
2. With LED and incandescent lamp not mounted.
JOPERATING CHARACTERISTICS
Features Knob-type Selector Switch
2 Positions 3 Positions
Operating force (OF) max. 0.1 N Sm (1,000 gf Scm)
Set position (SP) 90±5°45±10°
JOPERATION ANGLE
Note: The angle used for automatic
reset is shown in parentheses.
Two Positions Three Positions
A165S/W A165S/W
30
JCONTACTS
SW1 SW2
Position Contact
SPDT DPDT
Position SW Position SW1 SW2
2 Positions
3 Positions —
A165S/W A165S/W
31
Dimensions
Unit: mm (inch)
JKNOB-TYPE SELECTOR SWITCHES WITHOUT TRANSFORMER
Rectangular
A165j-J
Solder terminals
Square
A165j-A
Solder terminals
Round
A165j-T
Solder terminals
Lamp terminal
Packing (t0.5)
Lock ring
Mounting nut
Model, standard, lot No., serial number
Lamp terminal
Model, standard, lot No., serial number
Packing (t0.5)
Lock ring
Mounting nut
Lamp terminal
Model, standard, lot No., serial number
Lock ring
Mounting nut
Packing (t0.5)
24
(0.95)
6
(0.24)
28.5
(1.12)
18.5
(0.73)
9.5
(0.37)
18
(0.71)
12.2
(0.48)
15.8
(0.62)
18
(0.71)
6
(0.24)
28.5
(1.12)
18.5
(0.73)
9.5
(0.37)
18
(0.71)
12.2
(0.48)
15.8
(0.62)
18
(0.71)
18
(0.71)
6
(0.24)
28.5
(1.12)
18.5
(0.73)
9.5
(0.37)
18
(0.71)
12.2
(0.48)
15.8
(0.62)
18
(0.71)
18
(0.71)
A165S/W A165S/W
32
JPANEL CUTOUTS
Rectangular
A165j-J
(Top View)
Square A165j-A
Round A165j-T
(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 the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
24 min.
(0.94)
19 min.
(0.75)
24 min.
(0.94)
19 min.
(0.75)
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
JTERMINAL ARRANGEMENT
Without Transformer
Lamp terminals are not provided with the Non-illuminated Knob-type Selector Switches and Key-type Selector Switches.
SPDT Switches
Illuminated type
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
DPDT Switches
Illuminated type
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch Unit.
Lamp terminal Lamp terminal
18
(0.71)
12.2
(0.48)
7.4
(0.29)
18
(0.71)
12.2
(0.48)
7.4
(0.29)
Installation
For details on Panel Mounting, mounting and removing the Switch Unit, refer to installation details for the A16 Pushbutton Switch.
JFLANGE ROTATION (COMMON TO ALL SELECTOR SWITCHES)
A165 Knob-type Selector Switch
Fix the Switch screw and rotate the flange in 45°turns.
Flange
Fixing ring
Switch screw
Complete Assemblies
33
Key-Type Selector Switch A165K
Mounting Aperture of 16 mm
HTool-free installation
H2-piece construction
HOil-resistant IP65 models
HShort mounting depth, less than
28.5 mm below panel
HWide range of switching capacity from
general to microload
HMaintained and spring return models
available
HUL and CSA approved, VDE (pending)
HConforms to EN60947-5-1, IEC947-5-1
c
Ordering In
f
ormation
JCONSTRUCTION
Flange Shape
Key Types
•Four key types are available in addition to
the standard key.
Protective Case and Terminal Type
•Protective Structure
Oil-resistant IP65
•Terminal Type
Solder terminals
(tab terminals #110)
Switch Unit Specifications
•General-purpose Loads
125 VAC: 5 A
250 VAC: 3 A
30 VDC 3 A
Minimum applicable load: 1 mA at 5 VDC
Number of positions and Reset
Method
•2 positions
Maintained
Spring Return
•3 positions
Maintained
Spring Return
A165K A165K
34
JPART NUMBER NOMENCLATURE A165K ASSEMBLED KEY-TYPE SELECTOR SWITCH
(COMPLETE ASSEMBLY)
A165K-J A165K-A A165K-T
1 Flange Shape
Code Shape
T Round
A Square
J Rectangular
12345
A165K-jjjj-j
4 Key Release Position
Code Position
None All
C Center
R Right
L Left
3 Reset Method
Code Description
M Maintained
A Spring returned
2 Number of Positions
Code Description
22Position
33Position
5 Contacts
Code Description
1 SPDT
2DPDT
A165K A165K
35
JPART NUMBERS: NON-ILLUMINATED KEY-TYPE SELECTOR SWITCH (COMPLETE
ASSEMBLY)
Shape Number of
positions
Contact Reset method Key release position Part number
Round 2 positions SPDT Maintained Le
f
tA165K-T2ML-1
p
Right A165K-T2MR-1
A
ll A165K-T2M-1
Spring return (right) Le
f
tA165K-T2AL-1
DPDT Maintained Le
f
tA165K-T2ML-2
Right A165K-T2MR-2
A
ll A165K-T2M-2
Spring return (right) Le
f
tA165K-T2AL-2
3 positions DPDT Maintained Center A165K-T3MC-2
p
Right A165K-T3MR-2
Le
f
tA165K-T3ML-2
A
ll A165K-T3M-2
Spring return (both) Center A165K-T3AC-2
Square 2 positions SPDT Maintained Le
f
tA165K-A2ML-1
q
p
Right A165K-A2MR-1
A
ll A165K-A2M-1
Spring return (right) Le
f
tA165K-A2AL-1
DPDT Maintained Le
f
tA165K-A2ML-2
Right A165K-A3MR-2
A
ll A165K-A2M-2
Spring return (right) Le
f
tA165K-A2AL-2
3 positions DPDT Maintained Center A165K-A3MC-2
p
Right A165K-A3MR-2
Le
f
tA165K-A3ML-2
A
ll A165K-A3M-2
Spring return (both) Center A165K-A3AC-2
Rectangular 2 positions SPDT Maintained Le
f
tA165K-J2ML-1
g
p
Right A165K-J2MR-1
A
ll A165K-J2M-1
Spring return (right) Le
f
tA165K-J2AL-1
DPDT Maintained Le
f
tA165K-J2ML-2
Right A165K-J2MR-2
A
ll A165K-J2M-2
Spring return (right) Le
f
tA165K-J2AL-2
3 positions DPDT Maintained Center A165K-J3MC-2
p
Right A165K-J3MR-2
Le
f
tA165K-J3ML-2
A
ll A165K-J3M-2
Spring return (both) Center A165K-J3AC-2
A165K A165K
36
A
ccessories
(
O
rder
S
eparately
)
JPANEL PLUGS
Shape Classification Remarks Part number
Rectangular Used for covering the panel cutouts for
f
l
i
A3BJ-3003
Square
g
p
future panel expansion. A3BA-3003
Round A3BT-3003
JTOOLS
Name Shape Applicable types Remarks Part number
p
Pushbutton
Switch
Knob-type
Selector
Switch
Key-type
Selector
Switch
Emer-
gency
Stop
Switch
Indicator
Screw fitting Yes Yes Yes Yes Yes Convenient for
ganged
installation.
Tighten to a
torque of 0.39 N
•m(5kgf•cm)
min.
A3B-3004
Extractor Yes Yes Yes Yes Yes Convenient for
extracting the
Switch Unit and
Lamps.
A16Z-5080
A165K A165K
37
Speci
f
ications
JAPPROVED STANDARDS
UL, cUL (File No. E41515)
5 A at 125 VAC, 3 A at 250 VAC (general use)
3 A at 30 VDC (resistive)
EN60947-5-1 (Low Voltage Directive)
JRATINGS
AC resistive load DC resistive load
3 A, 250 VAC
5 A, 125 VAC
3A,30VDC
Minimum applicable load: 1 mA at 5 VDC
Rated values are obtained from tests conducted under the
following conditions according to JIS C4505 and C4520.
1. Load: Resistive load
2. Mounting conditions: No vibration and no shock
3. Temperature: 20°±2°C
4. Operating frequency: 20 times/min
JCONTACT
Name Contact
SPDT
JCHARACTERISTICS
Item Key-type Selector Switch
Allowable operating
f
Mechanical 20 operations/min max.
p
g
frequency Electrical 10 operations/min max.
Insulation resistance 100 MΩmin. (at 500 VDC)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,000 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between each
terminal and ground
Vibration resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Shock resistance Mechanical 500 m/s2(50G)
Malfunction 150 m/s2(15G) max. (malfunction within 1 ms)
Life expectancy Mechanical 250,000 operations min. (life of key: 10,000 operations min.)
p
y
Electrical 100,000 operations min.
Ambient temperature Operating: --10°Cto55°C(14°F to 131°F) with no icing or condensation
Storage: --25°Cto65°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. 26.5 g (0.93 oz) in the case of a DPDT switch key
Note: Set and reset constitute one operation.
JOPERATING CHARACTERISTICS
Type Key-type Selector Switch
Features
y
p
2 positions 3 positions
Operating force (OF) max. 9.8 N Sm (1,000 gf Scm)
Set position (SP) 90±5°45±10°
A165K A165K
38
JOPERATION ANGLE
Note: The angle used for automatic
reset is shown in parentheses.
Two positions Three positions
JCONTACTS
SW1 SW2
Position Contact
SPDT DPDT
Position SW Position SW1 SW2
2 positions
3 positions —
A165K A165K
39
Dimensions
Unit: mm (inch)
JKEY-TYPE SELECTOR SWITCHES
Rectangular
A165K-J
Solder terminals
Square
A165K-A
Solder terminals
Round
A165K-T
Solder terminals
Packing (t0.5)
Lock ring
Mounting nut
Model, standard, lot No., serial number
Packing (t0.5)
Lock ring
Mounting nut
Model, standard, lot No., serial number
Packing (t0.5)
Lock ring
Mounting nut
Model, standard, lot No., serial number
12.2
(0.48)
18
(0.71)
28.5
(1.12)
34.5 ±1
(1.36 ±0.04)
9.5
(0.37)
12.4
(0.49) 15.8
(0.62)
18
(0.71)
24
(0.94)
20
(0.79)
12.2
(0.48) 18
(0.71)
12.4
(0.49) 15.8
(0.62)
18
(0.71)
20
(0.79)
18
(0.71)
28.5
(1.12)
34.5 ±1
(1.36 ±0.04)
9.5
(0.37)
18
(0.71)
20
(0.79)
18
(0.71)
12.2
(0.48) 18
(0.71)
12.4
(0.49) 15.8
(0.62)
28.5
(1.12)
34.5 ±1
(1.36 ±0.04)
9.5
(0.37)
A165K A165K
40
JPANEL CUTOUTS
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 the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
Rectangular
A165j-J
(Top View)
Square A165j-A
Round A165j-T
(Top View)
24 min.
(0.94)
19 min.
(0.75)
19 min.
(0.75)
19 min.
(0.75)
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
JTERMINAL ARRANGEMENT
SPDT Switches
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
DPDT Switches
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
2.6
0.9
1.5
2.8
12.2
(0.48)
18
(0.71)
7.4
(0.29)
2.6
0.9
1.5
2.8
12.2
(0.48)
18
(0.71)
7.4
(0.29)
Installation
For mounting and removal instructions refer to the Installation section of the A16 Pushbutton switch.
JFLANGE ROTATION
A165 Key-type Selector Switch
Fix the Switch screw and rotate the flange in 45°turns.
Flange
Fixing ring
Switch screw
Complete Assemblies
41
Buzzer M2BJ-B
16-mm Diameter Panel-Mounted
Buzzer Unit
HFour models offer eight different types
of sounds, plus two modes newly added
to the high-sound type
HIntermittent or continuous sound
selected by jumper setting
HThree supply voltages: 6 VAC/DC,
12-24 VDC and 12 to 24 VAC/DC
HJumper storage provided at bottom of
unit
HComplements the A16 range of
Pushbuttons, Selector Switches, and
Key Switches
Ordering In
f
ormation
Item Part number
Standard sound High sound
Sound w/jumper Intermittent Intermittent
(short)
Intermittent
(high-pitched)
Intermittent
(short,
high-pitched)
Intermittent
(high-pitched)
Intermittent
(short)
w/o jumper Continuous Intermittent
(long)
Continuous
(high-pitched)
Intermittent
(long,
high-pitched)
Continuous Intermittent
(long)
Supply
l
6VAC/DC M2BJ-B06 M2BJ-B06A M2BJ-B06B M2BJ-B06C M2BJ-BH06D M2BJ-BH06E
p
p
y
voltage 12 to
24 VAC/DC
M2BJ-B24 M2BJ-B24A M2BJ-B24B M2BJ-B24C M2BJ-BH24D M2BJ-BH24E
12 to 24 DC M2BJ-B24-D —M2BJ-B24B-D —M2BJ-BH24D-D M2BJ-BH24E-D
JACCESSORIES (ORDER SEPARATELY)
Name Shape Classification Remarks Part number
Snap-in mounting leaf
spring
—Cannot be used with mounting nut
Panel cutout becomes 16.2 dia.
+0.3, --0
A3B-3001
Panel plug Rectangular Reserves hole cut out on panel for
f
u
t
u
r
e
m
o
u
n
t
i
n
g
A3BJ-3003
Square
f
uture mounting A3BA-3003
Round A3BT-3003
Tightening tool —Useful for mounting buzzers one
after another. Do not over-tighten.
A3B-3004
M2BJ-B M2BJ-B
42
Speci
f
ications
JSTANDARD-SOUND TYPE
Rated
l
6VAC/DC M2BJ-B06 M2BJ-B06A M2BJ-B06B M2BJ-B06C
voltage 12 to 24 VAC/DC M2BJ-B24 M2BJ-B24A M2BJ-B24B M2BJ-B24C
Sound pressure (distance: 0.1 m, at
rated voltage)
Continuous sound:
80 dB min.
Continuous: 80 dB
min.
Continuous sound:
80 dB min.
Continuous: 80 dB
min.
Driving frequency 2±0.5 kHz 4±0.5 kHz
Intervals 190
times/minute±10%
Long: 55
times/minute±10%
Short: 700
times/minute±10%
190
times/minute±10%
Long: 55
times/minute±10%
Short: 700
times/minute±10%
Current consumption DC 7mA 7mA 20 mA 20 mA
p
AC 20 mA 20 mA 20 mA 20 mA
Life expectancy 1,000 hours min.
JHIGH-SOUND TYPE
Item High-sound type
M2BJ-BH06D M2BJ-BH24D M2BJ-BH06E M2BJ-BH24E M2BJ-BH24D-D M2BJ-BH24E-D
Rated voltage 6VAC/DC 12 to 24 VAC/DC 6VAC/DC 12 to 24 VAC/DC 12 to 24 VDC
Sound pressure
(adjustable range)
(rated voltage,
distance of 0.1 m, A
range)
70 to 100 dB (Adjustable range)
Driving frequency 2.8±0.5 kHz
Intervals Approx. 190 times/min. Long: Approx. 55 times/min.
Short: Approx. 700 times/min.
Approx.
190 times/min.
Long: Approx.
55 times/min.
Short: Approx.
700 times/min.
Current
i
DC 50 mA max.
consumption AC 100 mA max. —
Inrush current 1Amax.
Life expectancy 1,000 hours min.
JCHARACTERISTICS
Insulation resistance 100 MΩmin. (between ground and current-carrying parts)
Dielectric strength 1,000 VAC for 1 minute (between grounds)
Ambient temperature Operating: --10°Cto55°C(14°F to 131°F) with no icing or condensation
Storage: --25°Cto65°C (-13°F to 149°F) with no icing or condensation
Humidity 35% to 85% RH
M2BJ-B M2BJ-B
43
Dimensions
Unit: mm (inch)
JM2BJ-B
Panel cutout (Top view)
JM2BJ-BH
Panel cutout*
18 dia.
(0.71)
M16 x 1
Note: Plate thickness of the panel should be
1.0to3.2mm.
Control knob
(Groove width
0.6 x length 1.7
x depth 0.7)
Turn-lock metal
Mounting ring Short-circuit
terminal
(for switching
sound)
Turn-lock metal
22
(0.87)
21.2
(0.83)
15.2
(0.60)
18
(0.71)
8.5
(0.33)
28.5
(1.12)
11
(0.43)
6.6
(0.26)
14.8 dia.
(0.58)
0.3
(0.01)
1.5
(0.06)
8.4
(0.33)
1
(0.04)
3.5
22
(0.87)
9.5
(0.37)
6
(0.24)
24 min.
(0.94)
18 min.
(0.71)
28.5
(1.12)
22
(0.87)
22
(0.87)
11
(0.43)
14.8 dia.
(0.58)
8.4
(0.33)
26
(1.02)
26 min.
(1.02)
20 min.
(0.79)
16 dia.
+0.2
0
(0.63 )
+0.008
0
16 dia.
+0.2
0
(0.63 )
+0.008
0
M2BJ-B M2BJ-B
44
Unit: mm (inch)
JACCESSORIES
Tightening Tool
2
(0.08)
60
(2.36)
18 dia.
(0.71)
Panel Plug
Select a panel plug which best compliments the design of the mounting panel. The dimensions of the hole cutout for the panel plugs are the
same as those of the buzzer unit.
Rectangular Square Round
18
(0.71)
24
(0.94)
18
(0.71)
18
(0.71)
18 dia.
(0.71)
M2BJ-B M2BJ-B
45
Correct Use
JNUT MOUNTING
Insert the buzzer unit from the front of the panel and tighten the
mounting nut inserted from the rear of the panel.
Since a projection exists on the rear portion of the buzzer unit, if
the mounting nut cannot be fitted into position, turn the nut
slightly.
The tightening torque of the mounting nut should be less than
5kg-cm.
Solder the terminals after mounting the nut. Otherwise, the
terminals, when thickened by solder, may prevent the nut from
being screwed down onto the buzzer unit.
JMOUNTING
Tighten the mounting nut at a torque of less than 5 kg-cm.
JWIRING
Exercise caution that the input terminals are not short-circuited
by the short-circuiting jumper.
Finish soldering within 5 seconds with a 30 watt soldering iron, or
within 3 seconds at a solder temperature of 240°C. For about a
minute after soldering, do not apply any force to the buzzer unit,
to avoid deforming the softened plastic buzzer unit base.
Use an non-corrosive, resin-based soldering flux.
JSNAP-IN MOUNTING
Attach the mounting leaf spring to the buzzer. Engage the edges
of the leaf spring in the two grooves on the threaded section of
the buzzer. After inserting the leaf spring edges into the grooves,
confirm that the leaf spring has seated. Be sure to attach both
leaf springs.
Insert the buzzer assembly into the hole on the mounting panel
from the front.
JSHORT-CIRCUITING JUMPER
The buzzer sounds continuously or intermittently depending on
how the short-circuiting bracket is attached to the case guide.
When the bracket is attached with the triangle on it facing
direction A (PC board side), the buzzer sounds intermittently.
To produce continuous sounds, attach the bracket to the case
guide so that the triangle on the bracket faces direction B.
M2BJ M2BJ
Cat. No. A107-E3-02 03/07 Specifications subject to change without notice. Printed in U.S.A.
R
MEXICO SALES OFFICES
Mexico, D.F. 555.660.3144
Ciudad Juárez 656.623.7083
Monterrey, N.L. 818.377.4281
Querétaro 442.135.4510
BRAZIL SALES OFFICE
Sao Paulo 55.11.2101.6310
ARGENTINA SALES OFFICE
Cono Sur 54.114.787.1129
CHILE SALES OFFICE
Santiago 562.206.4592
OTHER LATIN AMERICAN SALES
mela@omron.com
OMRON ON-LINE
Global --
www.omron247.com
USA --
www.omron247.com
Canada --
www.omron.ca
Brazil --
www.omron.com.br
Latin America --
mela@omron.com
OMRON ELECTRONICS LLC
1CommerceDrive
Schaumburg, IL 60173
Tel: 847.843.7900
For U.S. technical support or other
inquiries: 800.556.6766
OMRON CANADA, INC.
885 Milner Avenue
Toronto, Ontario M1B 5V8
Tel: 416.286.6465
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website
at www.omron247.com -- under the “About Us” tab, in the Legal Matters section.