Omron A22E - User manual

G-303A22E
A22E
Emergency Stop Switch
A22E
Install in 22-dia. or 25-dia.
Panel Cutout
• Direct opening mechanism with minimum
contact separation of 3 mm in accordance with
EN60947-5-1, . (only for NC contacts)
• Safety lock mechanism prevents misuse.
(No tampering – in accordance with EN 418)
• Easy mounting and removal of Switch Blocks
using an incorporated lever.
• Finger protection mechanism on Switch Unit
provided as a standard feature.
• Install using either round, forked crimp terminals,
or ferrules.
Æ
For additional installation of emergency-stop switches.
A22Z-3466-1
A22E-#-#
Emergency-stop switches can be
installed easily far from machines.
A22Z-B101Y
Control Box

G-304 Safety Sensors / Components
Model Number Structure
Model Number Legend
Completely Assembled
Shipped as a set which includes the Pushbutton, Lamp (lighted models only), and Switch.
Subassembled
The Pushbutton, 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 2 3 4
L
MP
LP
S
M
L
SK
MK
6D 6 VDC
6A 6 VAC
12A 12 VAC/VDC
24A 24 VAC/VDC
T1 110 VAC*1
T2 220 VAC*2
01
11
02
A22E#-#-#-#
1 Lighted/Non-lighted
Code Description
None Non-lighted
Lighted (see note)
2 Head Size
Code Description
40 dia. Push-pull
60 dia.
30 dia. Push-lock, turn-reset
40 dia.
60 dia.
30 dia. Push-lock key reset
40 dia.
3 Light Source
Code Operating Voltage
None Non-lighted
LED
With Voltage Reduction Unit
None Non-lighted
LED
Without Voltage Reduction Unit
4 Contacts
Code Description
SPST-NC
SPST-NO + SPST-NC
DPST-NC
*1) Operational voltage: 95 to 110 VAC
*2) Operational voltage: 190 to 230 VAC
Note: Lighted Emergency Stop
Switches are available
only for the 40-dia. push-
lock turn-reset models.
Note: The LED lamp (24 VAC/VDC) can be
lit by directly applying 110 VAC/VDC
(220 VAC/VDC) to the lamp terminal.
LED incorporates the 24-VAC/VDC
models.
Unit Combinations
Non-lighted Pushbutton
Pushbutton
Pushbutton
Lamp
Lamp
Switch (without Voltage Reduction Unit)
Switch (with Voltage Reduction Unit)
Switch
∑LED
∑Incandescent
Unit Combinations
∑LED
Lighted
(without Voltage
Reduction Unit)
Lighted
(with Voltage
Reduction Unit)

A22E
G-305A22E
1. Pushbutton
Lighted/Non-lighted
2. Lamp
3. Switch
Lighted/Non-lighted
1 2
L
MP
LP
S
M
L
SK
MK
A22E#-#
1 Lighted/Non-lighted
Code Description
None Non-lighted
Lighted (see note)
2 Head Size
Code Description
40 dia. Push-pull
60 dia.
30 dia. Push-lock, turn-reset
40 dia.
60 dia.
30 dia. Push-lock key reset
40 dia.
Note: Lighted Emergency Stop
Switches are available
only for the 40-dia. push-
lock turn-reset models.
1 2
R
6D 6 VDC (6 VDC)
6A 6 VAC (6 VAC)
12A 12 VAC/VDC (12 VAC/VDC)
24A 24 VAC/VDC (24 VAC/VDC)
A22-##
2 Illumination Color
Code Description
Red
1 Operating Voltage (Rated Voltage)
LED
Incandescent
Code
1 2 3
L
01
11
02
T1 110 VAC*1
T2 220 VAC*2
A22#-#M-#
1 Lighted/Non-lighted
Code Description
None Non-lighted
Lighted
2 Contacts
Code Description
SPST-NC
SPST-NO + SPST-NC
DPST-NC
3 Voltage Reduction Unit (Lighted Models Only)
Code Description
None Without Voltage Reduction Unit
*1) Operational voltage: 95 to 110 VAC
*2) Operational voltage: 190 to 230 VAC

G-306 Safety Sensors / Components
Ordering Information
List of Models
Completely Assembled (Ask your local OMRON representative)
Non-lighted Models
Lighted Models
Appearance Output Push-lock
turn-reset system Color of cap
SPST-NC A22E-MP-01
Red
SPST-NO/SPST-NC A22E-MP-11
DPST-NC A22E-MP-02
SPST-NC A22E-LP-01
SPST-NO/SPST-NC A22E-LP-11
DPST-NC A22E-LP-02
SPST-NC A22E-S-01
SPST-NO/SPST-NC A22E-S-11
DPST-NC A22E-S-02
SPST-NC A22E-M-01
SPST-NO/SPST-NC A22E-M-11
DPST-NC A22E-M-02
SPST-NC A22E-L-01
SPST-NO/SPST-NC A22E-L-11
DPST-NC A22E-L-02
SPST-NC A22E-SK-01
SPST-NO/SPST-NC A22E-SK-11
DPST-NC A22E-SK-02
SPST-NC A22E-MK-01
SPST-NO/SPST-NC A22E-MK-11
DPST-NC A22E-MK-02
Appearance Output Lighting Rated voltage Push-lock turn-re-
set system Color of cap
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
SPST-NC 110 VAC A22EL-M-T1-01
220 VAC A22EL-M-T2-01
SPST-NO/SPST-NC 110 VAC A22EL-M-T1-11
220 VAC A22EL-M-T2-11
DPST-NC 110 VAC A22EL-M-T1-02
220 VAC A22EL-M-T2-02
A22E-MP
40-dia. head
Push-pull
A22E-LP
60-dia. head
Push-pull
A22E-S
30-dia. head
Push-lock
Turn-reset
A22E-M
40-dia. head
Push-lock
Turn-reset
A22E-L
60-dia. head
Push-lock
Turn-reset
A22E-SK
30-dia. head
Push-lock
Key-reset
A22E-MK
40-dia. head
Push-lock
Key-reset
40-dia. head
Push-lock
Turn-reset
40-dia. head
Push-lock
Turn-reset with Voltage
Reduction Unit

A22E
G-307A22E
Subassembled
Pushbuttons
Non-lighted
Lighted
Lamp
LED
Note: For voltage-reduction lighting, use the A22-24AR.
Incandescent
Sealing capability and size IP65 oil-resistant models
Small (30 dia.) Medium (40 dia.) Large (60 dia.)
Push-pull ---
Push-lock, Turn-reset
Push-lock, key-reset
---
Sealing capability and size IP65
Medium (40 dia.)
Push-lock, Turn-reset
6 VDC 6 VAC 12 VAC/VDC 24 VAC/VDC Super-bright
24 VAC/VDC
Red A22-6DR A22-6AR A22-12AR A22-24AR A22-24ASR
Rated voltage 6 VAC 14 VAC 28 VAC 130 VAC
A22-5 A22-12 A22-24 A22-H1
A22E-MP A22E-LP
A22E-S A22E-M A22E-L
A22E-SK A22E-MK
A22EL-M
Rated voltage
LED light

G-308 Safety Sensors / Components
Switch (Standard Load)
Without Voltage Reduction Unit
With Voltage Reduction Unit
Note: 1. The above illustrations are for the DPST-NO contact.
2. When using with a Voltage Reduction Unit, use the A22-24AR.
Classification
Appearance
Switch Action Momentary Momentary
Contacts
For standard loads
SPST-NO A22-10M A22L-10M
SPST-NC A22-01M A22L-01M
SPST-NO + SPST-
NC A22-11M A22L-11M
DPST-NO A22-20M A22L-20M
DPST-NC A22-02M A22L-02M
Classification
Appearance
Switch Action Momentary Momentary
Contacts
For standard loads
SPST-NO A22L-10M-T1 A22L-10M-T2
SPST-NC A22L-01M-T1 A22L-01M-T2
SPST-NO + SPST-
NC A22L-11M-T1 A22L-11M-T2
DPST-NO A22L-20M-T1 A22L-20M-T2
DPST-NC A22L-02M-T1 A22L-02M-T2
Non-lighted Lighted
Lighted (110 VAC) Lighted (220 VAC)

A22E
G-309A22E
Accessories (Order Separately)
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
Lamp Sockets
Direct lighting A22-TN
Used when changing the lighting
method.
Voltage-
reduction
lighting
110 VAC A22-T1
220 VAC A22-T2
Mounting Latches
For momentary-action
models A22-3200 Provided as standard. Order Mounting Latches only when mounting Switch
Blocks or Lamp Sockets that are pur-
chased individually.
For alternate-action models A22-3210
Lock Ring Rounded shape A22Z-3360
The body is equipped with a Lock Fit-
ting. This Lock Fitting is used when a
more secure lock feature is required.
Hole Plug Round A22Z-3530
Can be plugged into pre-cut panel
holes for future expansion.The color is
black.
Control Boxes
(Enclosures)
One hole A22Z-B101
Material: Polycarbonate resin
One hole, yellow box
(for emergency stop) A22Z-B101Y
Two holes A22Z-B102
Three holes A22Z-B103
Connectors
Applicable ca-
ble diameter
(mm)
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.
Legend Plates for Emer-
gency Stop
60-dia. black letters on yel-
low back-ground A22Z-3466-1 “EMERGENCY STOP” is indicated on
the plate.
90-dia. black letters on yel-
low back-ground A22Z-3476-1
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
Lock Plate
--- A22Z-3380 Use to fix the lever on the Switch.

G-310 Safety Sensors / Components
Specifications
Approved Standards
Note: UL-approved for CSA C22.2 No. 14 and bears the cRmark.
Approved Standard Ratings
•UL, cUL (File No. E41515)
6 A at 220 V, 10 A at 110 VAC
•EN60947-5-1 (Low Voltage Directive)
Rated current: 10 A; Rated voltage: 220 VAC
Ratings
Contacts (Standard Load)
Note: 1. Rated current values are determined according to the test-
ing conditions. The above ratings were obtained by con-
ducting tests under the following conditions.
(1) Ambient temperature: 20×±2°C
(2) Ambient humidity: 65±5%
(3) Operating frequency: 20 operations/minute
2. Minimum applicable load: 10 mA at 5 VDC
Contacts (Microload)
LED Indicators without Voltage Reduction Unit
Super-bright LED Indicator
Incandescent Lamp
Voltage-reduction Lighting
Recognized
organization Standards File No.
UL (See note.) UL508 E41515
AZCO EN60947-5-1 C9805502
Rated
carry
current
Rated
voltage
Rated current (A)
AC15
(induc-
tive load)
AC12
(resistive
load)
DC13
(induc-
tive load)
DC12
(resis-
tive load)
10
24 VAC 10 10
--- ---
110 VAC 5 10
220 VAC 3 6
380 VAC 2 3
440 VAC 1 2
24 VDC
--- ---
1.5 10
110 VDC 0.5 2
220 VDC 0.2 0.6
380 VDC 0.1 0.2
Rated applicable load Minimum applicable load
50 mA at 5 VDC
(Resistive load) 1 mA at 5 VDC
Rated voltage Rated current Operating voltage
6 VDC 60 mA 6 VDC±5%
6 VAC 60 mA 6 VAC/VDC±5%
12 VAC/VDC 30 mA 12 VAC/VDC±5%
24 VAC/VDC 15 mA 24 VAC/VDC±5%
Rated voltage Rated current Operating voltage
24 VAC/VDC 15 mA 24 VAC/VDC ±5%
Rated voltage Rated current Operating voltage
6 VAC/VDC 200 mA 5 VAC/VDC
14 VAC/VDC 80 mA 12 VAC/VDC
28 VAC/VDC 40 mA 24 VAC/VDC
130 VAC/VDC 20 mA 100 VAC/VDC
Rated voltage Operational voltage Applicable lamp
(BA9S/13#gold)
110 VAC 95 to 115 VAC LED Lamp
(A22-24A#)
220 VAC 190 to 230 VAC

A22E
G-311A22E
Characteristics
Note: 1. With no icing or condensation.
2. Malfunction within 1 ms.
Operating Characteristics (for SPST-NO/SPST-NC)
Note: Rotation torque for Emergency Stop Pushbutton.
Item Emergency Stop Switches
Non-lighted model: A22E Lighted model: A22EL
Allowable operating
frequency
Mechanical 30 operations/minute max.
Electrical 30 operations/minute max.
Insulation resistance 100 MΩmin. (at 500 VDC)
Dielectric strength
2,500 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,500 VAC, 50/60 Hz for 1 min between terminals of different polarity and also
between each terminal and ground
Vibration resistance Malfunction (See note 2.): 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance Mechanical 1,000 m/s2
Malfunction (See note 2.) 250 m/s2max.
Durability Mechanical Momentary operation: 300,000 operations min.
Electrical 300,000 operations min.
Ambient temperature
(See note 1.)
Operating:
-20°C to 70°C
Storage: -40°C to 70°C
Operating:
-20°C to 55°C
Storage:
-40°C to 70°C
Ambient humidity Operating: 35% to 85%
Degree of protection IP65
(oil-resistant) IP65
Electric shock protection class Class II
PTI (tracking characteristic) 175
Degree of contamination 3 (IEC947-5-1)
Item
Emergency Stop Switches
Push-lock turn-reset system
A22E, A22EL
Total travel force
(TTF) max. 44.1 N
Total travel
(TT) 10±1 mm
Releasing force (RF) min. 0.25 N·m max.
(See note.)

G-312 Safety Sensors / Components
Nomenclature
Safety Lock Mechanism to Prevent Misuse
This Switch can be intentionally used to stop equipment in an emergency. Even if an object or person touches the Pushbutton by mistake, the
contact will not be released unless the Pushbutton reaches the lock position.
This Switch uses a finger protection mechanism to prevent electrical shocks. Moreover, it is
provided with a mechanism to prevent terminal screws from coming off and also allows
connection to either round or forked crimp terminals.
Pushbutton
Lamp
∑Light source
Switch
∑Contact Ratings
∑Lighting Method
(The above figures are examples of the lighted model.)
Push-lock Turn-reset System
Available Color: Red
Non-lighted
Lighted
LED Lamp
Incandescent Lamp
10 A at 110 VAC (resistive load)
10 A at 24 VDC (resistive load)
Non-lighted
Lighted (without Voltage Reduction Unit)
Lighted (with Voltage Reduction Unit)
Lock position
Finger protection
Mechanism for preventing
terminal screws from coming
off (loosening the screws do
not cause them to come off)

A22E
G-313A22E
Dimensions
Note: All units are in millimeters unless otherwise indicated.
34
1.8
32 41.2
1.8
1.8 1.8
A22E-MP A22E-LP
A22E-S A22E-M
A22E-L
A22E-SK A22E-MK
40 dia.
60 dia.
40 dia.
30 dia.
60 dia.
30 dia.
22 dia. 40 dia. 22 dia.
Non-lighted models
40-dia. Push-pull
Non-lighted models
60-dia. Push-pull
Non-lighted models
30-dia. Push-lock, Turn-reset
Non-lighted models
40-dia. Push-lock, Turn-reset
Non-lighted models
60-dia. Push-lock, Turn-reset
Non-lighted models
30-dia. Push-lock, Key-reset
Non-lighted models
40-dia. Push-lock, Key-reset
32 41.2
A22EL-M
40 dia.
Lighted models
40-dia. Push-lock, Turn-reset

G-314 Safety Sensors / Components
Dimensions for Accessories
Legend Plates For Emergency-stop
22.2 dia.
90 dia.
A22Z-3466-1
22.2 dia.
60 dia.
A22Z-3476-1
Black letters
Yellow
Black letters
Yellow
Lamp Extractor
A22Z-3901
Tightening Wrench
A22Z-3905
8.5 dia. 8 dia.
11 dia.
19.2 dia.
21.2 dia.
25 dia.
30 dia.
Lock Ring
A22Z-3360
22.2 dia.
25-dia. Ring
A22Z-R25
30 dia.
22 dia.
24.8 dia.
27 dia.
Lock Plate
A22Z-3380
7.3 dia.

A22E
G-315A22E
Control Box (Enclosure)
A22Z-B10#
A22Z-B102 (Two Holes)
A22Z-B103 (Three Holes)
21 dia.
22.1
+0.2
dia.
-0.1
Cable Port Hole (Top View)
16±1 dia.
-0.1
Two, 22.1
+0.2
dia.
21 dia.
Cable Port Hole (Top View)
16±1 dia.
-0.1
Three, 22.1
+0.2
dia.
21 dia.
Cable Port Hole (Top View)
16±1 dia.
Panel Mounting Hole
Four, 4x38 tapping screws
(10x36) 0.6-mm concave surface
(Lead cable hole)
(Lead cable hole) Two mounting holes
(Lead cable hole)
Four, 4x38 tapping screws
Four, 4x38 tapping screws
(10x36) 0.6-mm concave surface
(Lead cable hole)
(Lead cable hole)
(10x36) 0.6-mm concave surface
A22Z-B101 (One Hole)
A22Z-B101Y
(Lead
cable hole)
Two
mounting
holes
Two
mounting
holes

G-316 Safety Sensors / Components
Terminal Arrangement
Terminal Arrangement (Bottom View)
Terminal Connection
Note: The above terminal connection diagrams are examples for SPST-NO +
SPST-NC.
Panel Cutouts
Note: 1. When applying coating such as paint to the panel, the di-
mensions should be those after the application of coating.
2. Recommended panel thickness: 1 to 5 mm.
3. Use an A22Z-R25 Ring when mounting to a panel with 25-
mm holes.
Non-lighted
(SPST-NO + SPST-NC)
Lighted
(SPST-NO + SPST-NC)
Type Terminal connection
Non-lighted
Lighted without Volt-
age Reduction Unit
Lighted with Voltage
Reduction Unit
Switch Blocks
M3.5 screws Lamp Socket
Switch
Blocks
Bottom view
Bottom view
Bottom view
Without Lock FittingWith Lock Fitting
R0.8 max.
3.2+0.2 dia.
0
24.1+0.4 dia.
0
22.3+0.4 dia.
025+0.5 dia.
0
22.3+0.4 dia.
0

A22E
G-317A22E
Installation
Mounting to the Panel
Mounting the Operation Unit on the Panel
Insert the Operation Unit (Pushbutton, etc.) from the front surface of
the panel, insert the Lock Ring and the mounting nut from the termi-
nal side, then tighten the nut. Before tightening, check that the rub-
ber washer is present between the Pushbutton Unit and the panel.
When using a Legend Plate Frame, put one rubber washer each
between the Legend Plate Frame and the panel and between the
Operation Unit and the Legend Plate Frame. (One rubber washer will
be provided when one Legend Plate Frame is ordered.)
Align the Lock Ring with the groove in the casing, then insert the
Lock Ring so that its edge is located on the panel side.
Tighten the mounting nut at a torque of 0.98 to 1.96 N·m.
When using a Lock Ring, replace with the supplied Lock Ring, insert
the projecting part into the lock slot, and then tighten the mounting
nut.
When the panel cutout dimension is 25 dia., remove the supplied
rubber washer and mount the 25-dia. Ring as shown below. (Since
the A22Z-R25 is not attached to the main body, order separately.)
Mounting the Switch on the Pushbutton Unit
Insert the Pushbutton Unit into the Switch Unit, aligning the arrow
mark inscribed on the Case with the lever on the Switch Blocks, then
move the lever in the direction indicated by the arrow in the following
figure.
Removing the Switch
Move the lever in the direction indicated by the arrow in the following
figure, then pull the Pushbutton Unit or the Switch Blocks.
Since the lever has a hole with an inside diameter of 6.5 mm, the
lever can be moved in the specified direction by inserting a screw-
driver into the hole and then moving the screwdriver.
Hold here
Mounting nut
Lock Ring
Rubber washer Panel
Panel Lock Ring
Pro-
jecting
part
Operation Unit
25-dia. Ring (A22Z-R25)
Panel
Lock Ring
Mounting nut
22.3 dia.
25 dia.
25 dia.
22 dia.
22.3 dia.
Operation Unit
Arrow mark
Lever
Screwdriver

G-318 Safety Sensors / Components
Assembling the Cap
Emergency Stop Switch
Insert the protrusion of the Tightening Wrench (A22Z-3905) into the
Cap slot and then turn to remove the Cap.
Installing/Replacing the Lamp
Installing/Replacing from the Panel Surface
Insert the Lamp Extractor (A22Z-3901) into the lamp, then rotate the
Extractor while pressing it.
Installing/Replacing on the Switch
Grip the indicator with your fingers, then rotate the indicator while
pressing it against the Switch.
Control Box (Enclosure)
Mounting the Switch
The Standard-size Legend Plate Frame can be mounted. Mount the
Frame as shown in the following diagram. Mount the Switch in the
same way as for an ordinary panel.
Creating a Cable Port Hole
Place the tip of a screwdriver on the surface where the cable port
hole is to be created with the cover attached and strike the screw-
driver to punch a hole. Attempts to punch a hole on the other side of
the case will damage the Box.
Securing the Connector Cable
1. Insert the connector into the cable port hole in the Box and secure
with the fixing nut inside the box.
2. Open a hole in the thin rubber section of the rubber ring.
3. Pass the tightening cap through the cable, insert the cable into
the connector, and tighten the hexagonal nut to secure the cable.
Cable diameter Connector
7 to 9 dia. A22Z-3500-1
9 to 11 dia. A22Z-3500-2
Snap-in Legend Plate
Lock nut Rubber washer
Connector
Tightening cap
Inside Outside
Box
Cable

A22E
G-319A22E
Installing/Removing the Switch Blocks
Installing the Switch Blocks
Hook the small protrusion on the Mounting Latch into the groove on
the other side of the lever, then push up the Switch Block in the direc-
tion indicated by the arrow in the figure below.
Removing the Switch Blocks
Insert a screwdriver between the Mounting Latch and the Switch
Block, then push down the screwdriver in the direction indicated by
the arrow in the following figure.
Wiring
Wiring Round Crimp Terminals
Loosen the terminal screw from the Switch Unit until it completely
comes off the groove, insert a screwdriver as shown in the following
figure, then push up the washer in the direction indicated by the
arrow to temporarily secure it. Now, a round crimp terminal can be
connected. After inserting the terminal, tighten the screws to com-
plete wiring.
Lever
Switch Block
Protrusion
Mounting
Latch
Use either of the following screwdrivers.
Screwdriver
3 to 6 mm
3 to 6 mm
Flat-head
screwdriver
Phillips
screwdriver
Screw
Washer
Screwdriver

G-320 Safety Sensors / Components
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. A119-E2-03A-X