Omron A165K - User manual

Key-type Selector Switch A165K G-43
Pushbutton
Switches
Key-type Selector Switch
A165K
Mounting Aperture of 16 mm
• Modular construction
• Oil-resistant IP65 models
• UL and cUL approved.
• Conforms to EN60947-5-1, IEC947-5-1
• Short mounting depth, less than 28.5 mm below panel
• Wide range of switching capacity from standard to microload
• Automatic and manual models available
Model Number Structure
■Model Number Legend
Completely Assembled
The model numbers used to order sets of Units are illustrated below. One set comprises the Selector, Switch, and 2 Keys.
(1) (2) (3)
J
A
T
BA
2ML
2MR
2M
2AL
3MC
3MR
3ML
3M
3AC
3MAC
3MAL
3MA
3AMC
3AMR
3AM
1
2
1P
2P
2S
A 1 6 5 K - J 3ML - 2
(1) Shape of Selector
Symbol Shape Color
Rectangular
Square
Round
(2) Number of Notches/Resetting Method
Left
Right
Left and right
Left
Center
Right
Left
Left, right, and center
Center
Center
Left
Left, center
Center
Right
Center, right
2 notches
Black
(3) Contact Configuration
Symbol Type Terminal
SPDT
DPDT
SPDT
DPDT
DPDT
3 notches
3 notches
3 notches
Symbol No. of notches Reset method Key release position
3 notches
Manual
Manual
Square
(24-mm square)
Automatic
Automatic
CCW-automatic,
CW-manual
CCW-manual,
CW-automatic
Screw-Less
Clamp
PCB
Terminal
Solder
Terminal
Note: 1. Only DPDT contacts are
available with 3-notch mod-
els
2. PCB terminals are available
only with 2-notch models.

G-44 Key-type Selector Switch A165K
Subassembled
1. Selector
1. Flange Shape
J: Rectangular
A: Square
T: Round
BA: Square (24-mm square)
2. Number of Notches/Reset Method/Key Release Position
2ML: 2 notches/Manual/Left
2MR: 2 notches/Manual/Right
2M: 2 notches/Manual/Right and left
2AL: 2 notches/Automatic/Left
3MC: 3 notches/Manual/Center
3MR: 3 notches/Manual/Right
3ML: 3 notches/Manual/Left
3M: 3 notches/Manual/Right, left, and center
3AC: 3 notches/Automatic/Center
2. Switch (Same as for Knob-type Selector Switches)
1. Number of Notches
2N: 2 notches
3N: 3 notches
2. Contacts
1: SPDT
2: DPDT
3. Terminals
None: Solder terminals (tab terminals #110)
1 2
A165K-@@
1 2 3
A16S-@-@@

Key-type Selector Switch A165K G-45
Pushbutton
Switches
Ordering Information
■List of Models
Ordering as a Set
The model numbers used to order sets of Units are given in the following tables. One set comprises the Selector and Switch.
Solder Terminals
A165K-J (Rectangular) Models
IP65 Oil-resistant
A165K-A (Square) Models
IP65 Oil-resistant
Number of notches Output Reset method Key release position Model
2 notches SPDT Left A165K-J2ML-1
Right A165K-J2MR-1
Left and right A165K-J2M-1
Left A165K-J2AL-1
DPDT Left A165K-J2ML-2
Right A165K-J2MR-2
Left and right A165K-J2M-2
Left A165K-J2AL-2
3 notches DPDT Center A165K-J3MC-2
Right A165K-J3MR-2
Left A165K-J3ML-2
Left, right, and center A165K-J3M-2
Manual
Automatic
Manual
Automatic
Manual
Number of notches Output Reset method Key release position Model
2 notches SPDT Left A165K-A2ML-1
Right A165K-A2MR-1
Left and right A165K-A2M-1
Left A165K-A2AL-1
DPDT Left A165K-A2ML-2
Right A165K-A2MR-2
Left and right A165K-A2M-2
Left A165K-A2AL-2
3 notches DPDT Center A165K-A3MC-2
Right A165K-A3MR-2
Left A165K-A3ML-2
Left, right, and center A165K-A3M-2
Manual
Automatic
Manual
Automatic
Manual

G-46 Key-type Selector Switch A165K
A165K-T (Round) Models
IP65 Oil-resistant
Number of notches Output Reset method Key release position Model
2 notches SPDT Left A165K-T2ML-1
Right A165K-T2MR-1
Left and right A165K-T2M-1
Left A165K-T2AL-1
DPDT Left A165K-T2ML-2
Right A165K-T2MR-2
Left and right A165K-T2M-2
Left A165K-T2AL-2
3 notches DPDT Center A165K-T3MC-2
Right A165K-T3MR-2
Left A165K-T3ML-2
Left, right, and center A165K-T3M-2
Manual
Automatic
Manual
Automatic
Manual

Key-type Selector Switch A165K G-47
Pushbutton
Switches
Ordering Individually
Selectors and Switches 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.
Selectors
Appearance Number of notches Reset method Key release position Model
2 notches Manual A165K-J2ML
A165K-J2MR
A165K-J2M
A165K-J2AL
3 notches Manual A165K-J3MC
A165K-J3MR
A165K-J3ML
A165K-J3M
A165K-J3AC
3 notches A165K-J3MAC
A165K-J3MAL
A165K-J3MA
A165K-J3AMC
A165K-J3AMR
A165K-J3AM
2 notches Manual A165K-A2ML
A165K-A2MR
A165K-A2M
A165K-A2AL
3 notches Manual A165K-A3MC
A165K-A3MR
A165K-A3ML
A165K-A3M
A165K-A3AC
3 notches A165K-A3MAC
A165K-A3MAL
A165K-A3MA
A165K-A3AMC
A165K-A3AMR
A165K-A3AM
Rectangular
(A165K-J)
Automatic
Automatic
Mixed-
operation
Mixed-
operation
Square
(A165K-A)
Automatic
Automatic
Mixed-
operation
Mixed-
operation

G-48 Key-type Selector Switch A165K
Switches
Switches with Screw-Less Clamp
Accessories (Order Separately)
Accessories
2 notches Manual A165K-T2ML
A165K-T2MR
A165K-T2M
A165K-T2AL
3 notches Manual A165K-T3MC
A165K-T3MR
A165K-T3ML
A165K-T3M
A165K-T3AC
3 notches A165K-T3MAC
A165K-T3MAL
A165K-T3MA
A165K-T3AMC
A165K-T3AMR
A165K-T3AM
Appearance Number of notches Reset method Key release position Model
Round (A165K-T)
Automatic
Automatic
Mixed-
operation
Mixed-
operation
Appearance Classification Model
Switch 2 notches SPDT Solder terminal A16S-2N-1
DPDT A16S-2N-2
3 notches DPDT A16S-3N-2
2 notches SPDT PCB terminal A16S-2N-1P
DPDT A16S-2N-2P
Appearance Classification Model Remarks
Common to general
load and micro
load.
DPDT 2 notches Non-lighted A16-2S Common to ones
for pushbutton
switches.
3 notches A16S-3N-2LS ---
Name Appearance Classification Model Remarks
Panel Plugs Rectangular A16ZJ-3003 Used for covering the panel cutouts for
future panel expansion.
Degree of protection: IP40
Square A16ZA-3003
Round A16ZT-3003

Key-type Selector Switch A165K G-49
Pushbutton
Switches
Tools
Key
Note: Two Keys are provided.
Specifications
■Approved Standards
Note: cUL: CSA, C22.2 No. 14
■Approved Standard Ratings
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)
3 A at 250 VAC (AC12), 3 A at 30 VDC (DC12)
■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 times/min
Name Appearance Model Applicable types Remarks
Pushbutton
Switch Knob-type Selector
Switch
Key-type
Selector
Switch
Emer-
gency Stop
Switch
Indicator
Screw Fitting A16Z-3004 Yes Yes Yes Yes Yes Convenient for ganged
installation.
Tighten to a torque of
0.98 N·m
Extractor A16Z-5080 Yes Yes Yes Yes Yes Convenient for extract-
ing the Switches and
Lamps.
Appearance Model
A165K-KEY
Agency Standards File No.
UL, cUL (See note.) UL508 E41515
--- EN60947-5-1 ---
AC resistive load DC resistive load
3 A at 250 VAC
5 A at 125 VAC
3 A at 30 VDC

G-50 Key-type Selector Switch A165K
■Characteristics
Note: Set and reset constitute one operation.
Screw-less Clamp
■Operating Characteristics
■Operation Angle
Item Key-type Selector Switch
Allowable operating
frequency Mechanical 20 operations/minute max.
Electrical 10 operations/minute 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
Malfunction 150 m/s2max. (malfunction within 1 ms)
Durability Mechanical 250,000 operations min. (durability of key: 10,000 operations min.)
Electrical 100,000 operations min.
Ambient temperature Operating: −10°C to 55°C (with no icing or condensation)
Storage: −25°C to 65°C (with no icing or condensation)
Ambient humidity Operating: 35% to 85%
Electric shock protection class Class II
PTI (tracking characteristic) 175
Degree of contamination 3 (IEC947-5-1)
Weight Approx. 26.5 g (in the case of a DPDT switch key)
Item Screw-less Clamp
Recommended wire size 0.5 mm2twisted wire or 0.8 mm-dia. solid wire
Usable wires and ten-
sile strength
Twisted wi re 0.3mm20.5 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 ±1 mm
Type
Features
Key-type Selector Switch
2 notches 3 notches
Operating force (OF) max. 9.8 N·m
Set position (SP) 90±5°45°+10/0
(75°)(45°) (45°)
Two notches Three notches
Note: The angle used for automatic reset is shown in parentheses.

Key-type Selector Switch A165K G-51
Pushbutton
Switches
■Contact Form
Name Contact
DPDT
COM
NC
NO
SW1 SW2
Notch Contact
SPDT DPDT
Position SW Position SW1 SW2
2 notches
3 notches ---

G-52 Key-type Selector Switch A165K
Nomenclature
Key
Switch Specifications
Number of Notches and Reset Method
Flange Shape
Square (A165K-A)
Round (A165K-T)
Rectangular (A165K-J)
Protective Structure
•Oil-resistant IP65
Terminal Type
Selector
Switch
•PCB terminals
•Solder terminals
(tab terminals #110)
•Standard Loads
5 A at 125 VAC
3 A at 250 VAC
3 A at 30 VDC
Minimum applicable load: 1 mA at 5 VDC
•2 Notches
Manual
Automatic
•3 Notches
Manual
Mixed-operation

Key-type Selector Switch A165K G-53
Pushbutton
Switches
Dimensions
Note: All units are in millimeters unless otherwise indicated.
■Key-type Selector Switches
Solder terminals (tab terminals #110)
Note: See page 14 for panel cutouts.
Note: See page 14 for panel cutouts.
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
Note: See page 14 for panel cutouts.
Packing (t0.5) Lock ring
Mounting nut
Model, standard, lot No., serial number
Rectangular
A165K-J
Square
A165K-A
Solder terminals
(tab terminals #110)
Round
A165K-T
Solder terminals
(tab terminals #110)

G-54 Key-type Selector Switch A165K
The following diagrams show the rectangular model as a representative example.
PCB terminals
Screw-Less Clamp
Packing (t0.5)
Lock ring
Mounting nut
Note: See page 14 for panel cutouts.
Switch dismounting lever Lock ring
Mounting ring
Rectangular
A165K-J
Rectangular
A165K@-2S
Packing (t0.5)
(for oil-resistant IP65 only)

Key-type Selector Switch A165K G-55
Pushbutton
Switches
■Terminal Arrangement
Models with Solder Terminals without Reduced-voltage Lighting
Lamp terminals are not provided with the Non-lighted Knob-type Selector Switches and Key-type Selector Switches.
Lighted Models with PCB Terminals
Note: For details of the terminal arrangement for Screw-Less Clamps, refer to the corresponding section for the A16.
Lighted SPDT Switches Lighted DPDT Switches
Lamp terminal Lamp terminal
Non-lighted SPDT Switches Non-lighted DPDT Switches
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch.
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Side with TOP
indicated
Dimensions of
Terminal Holes
Dimensions of
Terminal Holes
Terminal Arrangement
(Bottom View)
Note: The L+ is not shown
on the Switch.
Terminal Arrangement
(Bottom View)
Side with TOP
indicated
Lighted SPDT Switches Lighted DPDT Switches
Lamp terminal (t=0.5)
Side with TOP indicated
Eight, 1 dia.
Two, 5 dia.
Lamp terminal (t=0.5)
Side with TOP indicated
Eight, 1 dia.
Two, 5 dia.
Dimensions of
PCB Terminals
Model, rating, and lot
number indication
Terminal Arrangement
(Bottom View)
Side with TOP
indicated
PCB Cutouts
(Bottom View)
Dimensions of
PCB Terminals
Terminal Arrangement
(Bottom View)
Side with TOP
indicated
PCB Cutouts
(Bottom View)

G-56 Key-type Selector Switch A165K
Non-lighted Models with PCB Terminals
Lamp terminals are not provided with the Non-lighted Knob-type Selector Switches and Key-type Selector Switches.
■Panel Cutouts
Models with Solder Terminals
Non-lighted SPDT Switches Non-lighted DPDT Switches
Side with TOP indicated
Side with TOP indicated
Three, 1 dia.
Two, 5 dia.
Side with TOP indicated
Side with TOP indicated
Six, 1 dia.
Two, 5 dia.
Dimensions of
PCB Terminals
Model, rating, and lot
number indication
Terminal Arrangement
(Bottom View)
PCB Cutouts
(Bottom View)
Dimensions of
PCB Terminals
PCB Cutouts
(Bottom View)
Note: 1. Make sure the thickness of the mounting panel is 0.5 to 3.2 mm.
2. If the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
(Top View)
24 min.
19 min.
16+0.2 dia.
0
19 min.
16+0.2 dia.
019 min.
Rectangular
A165@-J
(Top View)
Square A165@-A
Round A165@-T

Key-type Selector Switch A165K G-57
Pushbutton
Switches
Models with PCB Terminals
Installation
For details on mounting the Switch to a panel, and mounting and dismounting the Switch, refer to installation details for the A16 Pushbutton Switch.
■Panel Mounting
Refer to the Installation section for the A16.
■Mounting and Replacing the Pushbutton
Refer to the Installation section for the A16.
■Flange Rotation
A165 Key-type Selector Switch
Fix the Switch screw and rotate the flange in 45°turns.
Precautions
Refer to the Technical Information for Pushbutton Switches (Cat. No. A143) and the Precautions section for the A16.
(Top View) (Top View)
24 min.
19 min.
16+0.2 dia.
0
24 min.
24 min.
25 min.
Recommended panel thickness: 0.5 to 3.2 mm
(Top View)
Rectangular
A165@-J
Square A165@-A
Round A165@-T
16+0.2 dia.
0
Rectangular
A165K@-2S
16+0.2 dia.
0
33 min.
(Dimension A)
Note: 1. Ensure that the variation in the distance between the centers of neighboring mounting holes is less than ±0.1 mm.
3. If the panel is to be finished with coating, etc., make sure that the panel meets the specified dimensions after coating.
2. Make sure the thickness of the mounting panel is 0.5 to 3.2 mm. If, however, a Switch Guard or Dust Cover is used, the
thickness of the mounting panel must be 0.5 to 2 mm.
Flange
Lock ring
Switch screw

G-58 Key-type Selector Switch A165K
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. A126-E1-02