Omron A22K DATASHEET
Key-type Selector Switch
A22K
Install in 22-dia. or 25-dia. Panel Cutout
• Easy mounting and removal of Switch Unit.
• Increase wiring efficiency with three-row mounting of Switch
Blocks.
• Finger protection mechanism on Switch Unit provided as a
standard feature.
• Use 25-dia. ring to install in 25-dia. panel cutouts.
• Mounted using either open-type (fork-type) or closed-type
(round-type) crimp terminals.
• IP65 oil resistance
• EN60947-5-1
• UL and cUL approved (File No. E41515).
Model Number Structure
■ Model Number Legend
Completely Assembled
Shipped as a set which includes the Selector and Switch.
A22K-@-@
1 Number of Notches/Reset Method
Code Notches
2ML
2 notches Left
2M
2AL
3ML
3 notches Manual Left
3M
3MC
3AC
Reset
method
Manual
Automatic
Automatic
1 2
Key release
position
Left and right
Left
Left and right
Center
Center
2 Contacts
Code Description
10
SPST-NO (See note.)
01
SPST-NC (See note.)
11
SPST-NO + SPST-NC
20
DPST-NO
02
DPST-NC
Note: For models with 2 notches
Contact Rating is standard
load. (Refer to the Specification
section for the A22.)
Switches
Pushbutton
Key-type Selector Switch A22K G-107
Subassembled
The Selector, Lamp, or Switch can be ordered separately. Use them in combination for models that are not available as assembled Units. These
can also be used as inventory for maintenance parts.
1. Selector
1
A22K-@
1 Number of Notches/Reset Method
Code Notches
2ML
2 notches Manual Left
2M
2AL
3ML
3 notches Manual Left
3M
3MC
3AC
Reset
method
Automatic
Automatic
Key release
position
Left and right
Left
Left and right
Center
Center
2. Switch
Non-lighted
1
A22-@M
1 Contacts
Code Description
10
SPST-NO (2-notch models only)
01
SPST-NC (2-notch models only)
11
SPST-NO + SPST-NC
20
DPST-NO
02
DPST-NC
G-108 Key-type Selector Switch A22K
Ordering Information
■ List of Models
Ordering as a Set
Appearance Number of
Key-type Selector Switch
A22K
notches
2 notches SPST-NO A22K-2ML-10 Black
3 notches SPST-NO +
Reset method Output Key release
Manual
SPST-NC A22K-2ML-01
SPST-NO +
SPST-NC
DPST-NO A22K-2ML-20
DPST-NC A22K-2ML-02
Automatic
Manual
SPST-NO A22K-2AL-10
SPST-NC A22K-2AL-01
SPST-NO +
SPST-NC
DPST-NO A22K-2AL-20
DPST-NC A22K-2AL-02
SPST-NC
position
Model Color of
A22K-2M-10
A22K-2M-01
A22K-2ML-11
A22K-2M-11
A22K-2M-20
A22K-2M-02
A22K-2AL-11
A22K-3ML-11
A22K-3M-11
Selector
Switches
Pushbutton
Note: Two Keys are provided.
Automatic
A22K-3MC-11
DPST-NO A22K-3ML-20
A22K-3M-20
A22K-3MC-20
DPST-NC A22K-3ML-02
A22K-3M-02
A22K-3MC-02
SPST-NO +
SPST-NC
DPST-NO A22K-3AC-20
DPST-NC A22K-3AC-02
A22K-3AC-11
Key-type Selector Switch A22K G-109
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