Omron A165K DATASHEET
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)
A 1 6 5 K - J 3ML - 2
(1) Shape of Selector
Symbol Shape Color
Rectangular
J
Square
A
T
BA
Round
Square
(24-mm square)
Black
(2) Number of Notches/Resetting Method
No. of notches Reset method Key release position
Symbol
2ML
2MR
2M
2AL
3MC
3MR
3ML
3M
3AC
3MAC
3MAL
3MA
3AMC
3AMR
3AM
2 notches
3 notches
3 notches
3 notches
3 notches
Manual
Automatic
Manual
Automatic
CCW-manual,
CW-automatic
CCW-automatic,
CW-manual
Left
Right
Left and right
Left
Center
Right
Left
Left, right, and center
Center
Center
Left
Left, center
Center
Right
Center, right
(3) Contact Configuration
Symbol Type Terminal
1
SPDT
2
DPDT
1P
SPDT
2P
DPDT
2S
DPDT
Note: 1. Only DPDT contacts are
available with 3-notch models
2. PCB terminals are available
only with 2-notch models.
Solder
Terminal
PCB
Terminal
Screw-Less
Clamp
Switches
Pushbutton
Key-type Selector Switch A165K G-43
Subassembled
1. Selector
A165K-@@
1 2
1. Flange Shape
J: Rectangular
A: Square
T: Round
BA: Square (24-mm square)
2. Number of Notches/Reset Method/Key Release Position
2. Switch (Same as for Knob-type Selector Switches)
A16S-@-@@
1 2 3
1. Number of Notches
2N: 2 notches
3N: 3 notches
2. Contacts
1: SPDT
2: DPDT
3. Terminals
None: Solder terminals (tab terminals #110)
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
G-44 Key-type Selector Switch A165K
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
Number of notches Output Reset method Key release position Model
2 notches SPDT Left A165K-J2ML-1
Manual
Automatic
Right A165K-J2MR-1
Left and right A165K-J2M-1
Left A165K-J2AL-1
DPDT Left A165K-J2ML-2
3 notches DPDT Center A165K-J3MC-2
Manual
Automatic
Manual
Right A165K-J2MR-2
Left and right A165K-J2M-2
Left A165K-J2AL-2
Right A165K-J3MR-2
Left A165K-J3ML-2
Left, right, and center A165K-J3M-2
A165K-A (Square) Models
IP65 Oil-resistant
Number of notches Output Reset method Key release position Model
2 notches SPDT Left A165K-A2ML-1
DPDT Left A165K-A2ML-2
Manual
Automatic
Manual
Automatic
Right A165K-A2MR-1
Left and right A165K-A2M-1
Left A165K-A2AL-1
Right A165K-A2MR-2
Left and right A165K-A2M-2
Left A165K-A2AL-2
Switches
Pushbutton
3 notches DPDT Center A165K-A3MC-2
Manual
Right A165K-A3MR-2
Left A165K-A3ML-2
Left, right, and center A165K-A3M-2
Key-type Selector Switch A165K G-45
A165K-T (Round) Models
IP65 Oil-resistant
Number of notches Output Reset method Key release position Model
2 notches SPDT Left A165K-T2ML-1
Manual
Automatic
Right A165K-T2MR-1
Left and right A165K-T2M-1
Left A165K-T2AL-1
DPDT Left A165K-T2ML-2
3 notches DPDT Center A165K-T3MC-2
Manual
Automatic
Manual
Right A165K-T2MR-2
Left and right A165K-T2M-2
Left A165K-T2AL-2
Right A165K-T3MR-2
Left A165K-T3ML-2
Left, right, and center A165K-T3M-2
G-46 Key-type Selector Switch A165K
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
Rectangular
(A165K-J)
2 notches Manual A165K-J2ML
A165K-J2MR
A165K-J2M
Automatic
3 notches Manual A165K-J3MC
Automatic
A165K-J2AL
A165K-J3MR
A165K-J3ML
A165K-J3M
A165K-J3AC
Square
(A165K-A)
3 notches A165K-J3MAC
2 notches Manual A165K-A2ML
3 notches Manual A165K-A3MC
3 notches A165K-A3MAC
Mixedoperation
Mixedoperation
Automatic
Automatic
Mixedoperation
Mixedoperation
A165K-J3MAL
A165K-J3MA
A165K-J3AMC
A165K-J3AMR
A165K-J3AM
A165K-A2MR
A165K-A2M
A165K-A2AL
A165K-A3MR
A165K-A3ML
A165K-A3M
A165K-A3AC
A165K-A3MAL
A165K-A3MA
A165K-A3AMC
A165K-A3AMR
A165K-A3AM
Switches
Pushbutton
Key-type Selector Switch A165K G-47
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