Key-type Selector Switch (Cylindrical 22/25-dia.)
A22K
CSM_A22K_DS_E_2_1
Install in 22-dia. or 25-dia. Panel Cutout
Lever for easily mounting and removing the Socket 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
Refer to Safety Precautions for All Pushbutton Switches
and Safety Precautions for the A22.
Model Number Structure
Model Number Legend......Shipped as a set which includes the Selector and Switch.
For information on combinations, refer to Ordering Information.
(1) (2)
A 22 K - 2ML - 11
(1) Number of Notches/Reset Method (2) Contacts
Reset Key release Code Description
Code Notches
method position
10 SPST-NO *
2ML Left
01 SPST-NC *
Manual
2M 2 notches Left and right
11 SPST-NO + SPST-NC
2AL Automatic Left
20 SPST-NO + SPST-NO
3ML Left
02 SPST-NC + SPST-NC
3M Manual Left and right
* For models with 2 notches
3 notches
Contact Rating is standard load.
3MC Center
For microloads, refer to Accessories section for A22.
3AC Automatic Center
For special keys, consult your OMRON representative.
Individual models: Refer to pages 2 to 3. Specifications: Refer to the A22. Dimensions: Refer to page 5.
(The Selector and Switch can be ordered separately.) Accessories and tools: Refer to the A22.
1A22K
Ordering Information
Completely Assembled .... Shipped as a set which includes the Selector and Switch.
Key-type Selector Switch
Number of Reset Key release
Appearance Output Model
notches method position
A22K-2ML-10
SPST-NO
A22K-2M-10
A22K-2ML-01
SPST-NC
A22K-2M-01
A22K-2ML-11
Manual SPST-NO + SPST-NC
A22K-2M-11
A22K-2ML-20
SPST-NO + SPST-NO
2 notches A22K-2M-20
Key-type Selector Switch
A22K-2ML-02
A22K
SPST-NC + SPST-NC
A22K-2M-02
SPST-NO A22K-2AL-10
SPST-NC A22K-2AL-01
Automatic SPST-NO + SPST-NC A22K-2AL-11
SPST-NO + SPST-NO A22K-2AL-20
SPST-NC + SPST-NC A22K-2AL-02
A22K-3ML-11
SPST-NO + SPST-NC A22K-3M-11
A22K-3MC-11
A22K-3ML-20
Manual SPST-NO + SPST-NO A22K-3M-20
A22K-3MC-20
3 notches
A22K-3ML-02
SPST-NC + SPST-NC A22K-3M-02
A22K-3MC-02
SPST-NO + SPST-NC A22K-3AC-11
Automatic SPST-NO + SPST-NO A22K-3AC-20
SPST-NC + SPST-NC A22K-3AC-02
Note: 1. Two Keys are provided.
2. The contact ratings are for standard loads.
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.
Selector Switch
Two Keys are provided.
Ordering set combinations: Refer to this page. Specifications: Refer to the A22. Dimensions: Refer to page 5.
Accessories and tools: Refer to the A22.
2