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SitemapEmergency Stop Switch (22-dia./25-dia.)
A22E
Install in 22-dia. or 25-dia. Panel Cutout
Data Sheet (998KB)
Quick links OMRON IA Emergency Stop Switches in your country.
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- Middle East
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Please contact our European headquarters.
List of Models
Completely Assembled
Non-lighted Models
| Operating | Set Model | Color of cap | ||
| Appearance | Contact Configuration | |||
| 40-dia. head Medium Push-pull A22E-MP |  | SPST-NC | A22E-MP-01 | Red |
| SPST-NO/SPST-NC | A22E-MP-11 | |||
| DPST-NC | A22E-MP-02 | |||
| 60-dia. head Large Push-pull A22E-LP |  | SPST-NC | A22E-LP-01 | |
| SPST-NO/SPST-NC | A22E-LP-11 | |||
| DPST-NC | A22E-LP-02 | |||
| 30-dia. head Small Push-lock Turn-reset A22E-S |  | SPST-NC | A22E-S-01 | |
| SPST-NO/SPST-NC | A22E-S-11 | |||
| DPST-NC | A22E-S-02 | |||
| DPST-NC + SPST-NO | A22E-S12 * | |||
| TPST-NC | A22E-S-03 * | |||
| 40-dia. head Medium Push-lock Turn-reset A22E-M |  | SPST-NC | A22E-M-01 | |
| SPST-NO/SPST-NC | A22E-M-11 | |||
| DPST-NC | A22E-M-02 | |||
| DPST-NC + SPST-NO | A22E-M-12 * | |||
| TPST-NC | A22E-M-03 * | |||
| 60-dia. head Large Push-lock Turn-reset A22E-L |  | SPST-NC | A22E-L-01 | |
| SPST-NO/SPST-NC | A22E-L-11 | |||
| DPST-NC | A22E-L-02 | |||
| 30-dia. head Small Push-lock Key-reset A22E-SK |  | SPST-NC | A22E-SK-01 | |
| SPST-NO/SPST-NC | A22E-SK-11 | |||
| DPST-NC | A22E-SK-02 | |||
| 40-dia. head Medium Push-lock Key-reset A22E-MK |  | SPST-NC | A22E-MK-01 | |
| SPST-NO/SPST-NC | A22E-MK-11 | |||
| DPST-NC | A22E-MK-02 | |||
*Models with Korean S-mark certification.
Lighted Models
| Appearance | Operating | Push-lock turn-reset system | Color of cap | ||
| Contact configuration | Lighting | Rated voltage | Set Model | ||
| 40-dia. head Push-lock Turn-reset without Voltage Reduction Unit A22E  | SPST-NC | LED | 6 VDC | A22EL-M-6D-01 | Red |
| 6 VAC | A22EL-M-6A-01 | ||||
| 12 VAC/VDC | A22EL-M-12A-01 | ||||
| 24 VAC/VDC | A22EL-M-24A-01 | ||||
| SPST-NO/SPST-NC | 6 VDC | A22EL-M-6D-11 | |||
| 6 VAC | A22EL-M-6A-11 | ||||
| 12 VAC/VDC | A22EL-M-12A-11 | ||||
| 24 VAC/VDC | A22EL-M-24A-11 | ||||
| DPST-NC | 6 VDC | A22EL-M-6D-02 | |||
| 6 VAC | A22EL-M-6A-02 | ||||
| 12 VAC/VDC | A22EL-M-12A-02 | ||||
| 24 VAC/VDC | A22EL-M-24A-02 | ||||
| 40-dia. head Push-lock Turn-reset with Voltage Reduction Unit A22E  | SPST-NC | 100 VAC | A22EL-M-T1-01 | ||
| 200 VAC | A22EL-M-T2-01 | ||||
| SPST-NO/SPST-NC | 100 VAC | A22EL-M-T1-11 | |||
| 200 VAC | A22EL-M-T2-11 | ||||
| DPST-NC | 100 VAC | A22EL-M-T1-02 | |||
| 200 VAC | A22EL-M-T2-02 | ||||
Switch with Integrated Control Box
| Appearance | Contact configuration | Model |
 | SPST-NC | A22E-M-01B |
| SPST-NO/SPST-NC | A22E-M-11B | |
| DPST-NC | A22E-M-02B |
Subassembled
The Operation Unit, 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.
*Up to three Switch Units can be mounted for multiple contacts.
Operation Units
Non-lighted
| Sealing capability Size | IP65 oil-resistant models | ||
| Small (30 dia.) | Medium (40 dia.) | Large (60 dia.) | |
| Push-pull | --- | A22E-MP  | A22E-LP  |
| Push-lock, turn-reset | A22E-S  | A22E-M  | A22E-L  |
| Push-lock, key-reset (push-lock, turn-reset) | A22E-SK  | A22E-MK  | --- |
Lighted
| Sealing capability Size | IP65 |
| Medium (40 dia.) | |
| Push-lock, turn-reset | A22EL-M  |
Lamp
LED
| Appearance | LED light | Rated voltage | Model | |
 | Red | Standard | 6 VDC | A22-6DR |
| 6 VAC | A22-6AR | |||
| 12 VAC/VDC | A22-12AR | |||
| 24 VAC/VDC | A22-24AR | |||
| Bright | 24 VAC/VDC | A22-24ASR | ||
Note: For voltage-reduction lighting, use the A22-24AR.
Incandescent
| Appearance | Rated voltage | Model |
 | 6 VDC | A22-5 |
| 14 VAC | A22-12 | |
| 28 VAC | A22-24 | |
| 130 VAC | A22-H1 |
Switch (Standard Load)
Without Voltage Reduction Unit
| Classification Appearance | Non-lighted  | Lighted  | |
| Switch Action | Momentary | Momentary | |
| Contacts | Model | Model | |
| For standard loads | SPST-NC | A22-01M | A22L-01M |
| SPST-NO + SPST-NC | A22-11M | A22L-11M | |
| DPST-NC | A22-02M | A22L-02M | |
With Voltage Reduction Unit
| Classification Appearance | Lighted (110 VAC)  | Lighted (220 VAC)  | |
| Switch Action | Momentary | Momentary | |
| Contacts | Model | Model | |
| For standard loads | SPST-NC | A22L-01M-T1 | A22L-01M-T2 |
| SPST-NO + SPST-NC | A22L-11M-T1 | A22L-11M-T2 | |
| DPST-NC | A22L-02M-T1 | A22L-02M-T2 | |
Note: When using with a Voltage Reduction Unit, use the A22-24AR.
Accessories (Optional)
| Item | Appearance | Classification | Model | Remarks | |
| Switch Blocks |  | SPST-NO | A22-10 | Provided as standard. Order Switch Blocks only when adding or replacing them. | |
| SPST-NC | A22-01 | ||||
 | DPST-NO, one-piece | A22-20 | |||
| DPST-NC, one-piece | A22-02 | ||||
| Lamp Sockets |  | Direct lighting | A22-TN | Used when changing the lighting method. | |
| Voltage- reduction lighting | 100 VAC | A22-T1 | |||
| 200 VAC | A22-T2 | ||||
| Mounting Latches |  | --- | A22-3200 | Provided as standard. Order Mounting Latches only when mounting Switch Blocks or Lamp Sockets that are purchased individually. | |
| Legend Plates for Emergency Stop |  | 60-dia. black letters on yellow back-ground | A22Z-3466-1 | "EMERGENCY STOP" is indicated on the plate. | |
| 90-dia. black letters on yellow back-ground | A22Z-3476-1 | ||||
 | 60-dia. black letters on yellow back-ground | A22Z-3466-2 | "EMERGENCY OFF" is indicated on the plate. | ||
| Hole Plug |  | Round | A22Z-3530 | Can be plugged into pre-cut panel holes for future expansion. The color is black. | |
| Connectors |  | Applicable cable diameter | 7 to 9 dia. | A22Z-3500-1 | Plastic connector used to extend a cable from the Switch Box. |
| 9 to 11 dia. | A22Z-3500-2 | ||||
| 25-dia. Ring |  | --- | A22Z-R25 | Can be fit into a 25-dia. hole in the panel. Since this is not attached to the main body, order separately. | |
| 30-dia. Resin Attachment |  | --- | A22Z-A30 | Can be fit into a 30-dia. hole in the panel. | |
| Lock Plate |  | --- | A22Z-3380 | Use to fix the lever on the Switch. | |
| Control Boxes (Enclosures) |  | One hole, yellow box (for emergency stop) | A22Z-B101Y | Material: Polycarbonate resin | |
| Operation Keys |  | --- | A22K-K | Two keys are provided. | |
| Lock Ring |  | Rounded shape | A22Z-3360 | The body is equipped with a Lock Fitting. This Lock Fitting is used when a more secure lock feature is required. | |
| Lamp Extractor |  | --- | A22Z-3901 | Rubber tool used to replace Lamps easily | |
| Tightening Tool |  | --- | A22Z-3905 | Tool used to tighten nuts from the back of the panel and to attach caps to lighted models. | |
| E-stop Shroud for EMO, Yellow |  | --- | A22Z-EG1 | Provides SEMI-S2/SEMATECH Application Guide for SEMI-S2 compatibility. The SEMI- S2-compatible Shroud and legend plate for EMERGENCY OFF come as a set. Use with an A22E Emergency Stop Switch. | |
| E-stop Shroud for EMS, White |  | --- | A22Z-EG1-W | Provides SEMI-S2/SEMATECH Application Guide for SEMI-S2 compatibility. The SEMI- S2-compatible Shroud and legend plate for EMERGENCY STOP come as a set. Use with an A22E Emergency Stop Switch. | |
| E-stop Shroud |  | --- | A22Z-EG2 | SEMI-S2/SEMATECH Application Guide for SEMI S2-compatible Shroud. Use together with an A22E Emergency Stop Switch. | |
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