CSM_A4EG_DS_E_8_1
1
Enabling Grip Switch
A4EG
Enabling Grip Switch with Distinct Feel
for Three Easily Discernible Positions
• In addition to the standard models, the lineup also includes
models with an emergency stop switch and models with a
momentary operation switch.
• An optional Holding Key (sold separately) provides a versatile
method for selecting modes.
• Equipped with conduit connector.
Features
Positive Operating Feel
Original Double Snap Action switch mechanism lets the operator
precisely confirm the enable position.
Selection Based on Application
In addition to the standard models, the lineup also includes models
with an emergency stop switch and models with a momentary
operation switch.
Safety Circuits Are Easy to Configure
Safety circuits can be easily configured by combining the A4EG with
the G9SX-GS Safety Guard Switching Unit.
Be sure to read the “Safety Precautions” on page 10.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Press the bottom part...Press the top part...
Click!
Click!
Single-press design ensures a
positive click feel when only one
part of the switch is pressed, to
enable positive confirmation.
A4EG-C000041
A4EG-BE2R041
Equipped with an
Emergency Stop Switch
A4EG-BM2B041
Equipped with a
Momentary Operation Switch
Wall-mounted with Bracket
Safety Door Switch
D4NS or others
Safety Door Switch
D4NS
Normal operating mode Maintenance mode
Safety Guard
Switching Unit
G9SX-GS
Enable Grip Switch
A4EG
The Selector Switch can be used to switch between
normal operating mode (using the Door Switch) and
maintenance mode (using the Enabling Grip Switch).
A Holding Key can be used to change modes
rather than a key-type selector switch.
Safety Key Selector Switch
A22TK
Note: Refer to page 8 for information on
connecting to the G9SX-GS.
A4EG
2
Ordering Information
Enabling Grip Switches
Accessories (Order Separately)
Appearance Contact form Model
Enabling switch Monitor switch Pushbutton switch
Two contacts 1NC
(grip output) None A4EG-C000041
Two contacts None Emergency stop switch
(2NC) A4EG-BE2R041
Two contacts None Momentary operation switch
(2NO) A4EG-BM2B041
Appearance Item Model
Rubber Cover
(replacement part) A4EG-OP1
Mounting Bracket
(for securing the
A4EG)
A4EG-OP2
Holding Key A4EG-OP3
3
A4EG
Specifications
Standards and EC Directives
Compliance with EC Directives and International Standards
•Low Voltage Directive
•GS-ET-22
Certified Standards
*Certification for CSA C22.2 No. 14 by UL is indicated by the .
Certified Standard Ratings (Enabling Switch Section)
TÜV (EN 60947-5-1)
Note: Use a 10-A fuse type gI or gG that conforms to IEC 60269 as the short-circuit protection device.
The fuse is not built into the Switch.
UL/CSA (UL 508, CSA C22.2 No.14), CCC (GB/T 14048.5)
•24 VDC, 0.3 A (inductive load)
•125 VAC, 1 A (resistive load)
Ratings
Certifying body Standard File No.
TÜV SÜD EN 60947-5-1
(certified direct opening)
Consult your OMRON
representative for details.
UL *UL 508, CSA C22.2 No.14 E76675
CQC (CCC) GB/T 14048.5 Consult your OMRON
representative for details.
KOSHA EN60947-5-1 Consult your OMRON
representative for details.
Item Utilization category AC-15 DC-13
Rated operating current (Ie) 0.75 A 0.55 A
Rated operating voltage (Ue) 240 V 125 V
Item Section Enabling switch Emergency stop switch
(A4EG-BE2R041 only) Pushbutton
(A4EG-BM2B041 only)
Rated insulation voltage 250 V ---
Rated ON current 2.5 A 5 A 0.1 A
Rated load
24 VDC, 0.3 A (inductive load)
125 VAC, 1 A (resistive load)
EN certification rating:
AC-15 0.75 A/240 V
DC-13 0.55 A/125 V
General rating:
125 VAC, 5 A (resistive load)
250 VAC, 3 A (resistive load)
30 VDC, 3 A (resistive load)
UL and cUL rating:
125 VAC, 5A
(inductive load, power factor: 0.75 to 0.8)
250 VAC, 3 A
(inductive load, power factor: 0.75 to 0.8)
30 VDC, 3 A (resistive load)
EN certification rating:
AC-12 3 A/250 V
DC-12 3 A/30 V
General rating:
125 VAC, 0.1 A (resistive load)
8 VDC, 0.1 A (resistive load)
14 VDC, 0.1 A (resistive load)
30 VDC, 0.1 A (resistive load)
UL and cUL rating:
125 VAC, 0.1 A
(resistive load)
30 VDC, 0.1 A (resistive load)
EN certification rating:
AC-12 0.1 A/125 V
DC-12 0.1 A/30 V
Minimum applicable load 24 VDC, 4 mA 5 VDC, 1 mA
A4EG
4
Characteristics
Note: The timing of contact outputs for two or more circuits is not synchronized. Confirm performance before application.
Item Section Enabling switch Emergency stop switch
(A4EG-BE2R041 only) Pushbutton
(A4EG-BM2B041 only)
Degree of protection IP66 (A4EG-C000041), IP65 (A4EG-BE2R041, A4EG-BM2B041)
Operating section strength Operating direction: 200 N, 1 min Operating direction: 367 N, 1 min
Rotating direction: 0.49 N·m, 1 min Operating direction: 50 N, 1 min
Cable pull strength 30 N, 1 min
Allowable
operating
frequency
Electrical 20 operations/minute max. 10 operations/minute max.
(set/reset for one operation) 60 operations/minute max.
Mechanical 20 operations/minute max. 10 operations/minute max.
(set/reset for one operation) 120 operations/minute max.
Electrical durability
100,000 operations min. (rated load)
100,000 operations min.
(set/reset for one operation)
(rated load)
100,000 operations min. (rated load)
Mechanical durability OFF-ON-OFF (direct opening):
100,000 operations min.
OFF-ON: 1,000,000 operations min.
100,000 operations min.
(set/reset for one operation) 2,000,000 operations min.
Dielectric
strength
Between
terminals of the
same polarity
2,500 VAC, 50/60 Hz, 1 minute
(impulse voltage) 1,000 VAC, 50/60 Hz, 1 minute 1,000 VAC, 50/60 Hz, 1 minute
Between
terminals of the
different polarity
2,500 VAC, 50/60 Hz, 1 minute
(impulse voltage) 2,000 VAC, 50/60 Hz, 1 minute 2,000 VAC, 50/60 Hz, 1 minute
Between each
terminal and
non-current
carrying
metallic parts
2,500 VAC, 50/60 Hz, 1 minute
(impulse voltage) 2,000 VAC, 50/60 Hz, 1 minute 2,000 VAC, 50/60 Hz, 1 minute
Insulation resistance 100 MΩ min. (at 500 VDC)
Vibration
resistance Malfunction 1.5 mm double amplitude, 10 to 55 Hz
Shock
resistance Malfunction 150 m/s2 max.
Ambient operating
temperature −10 to 55°C (with no icing or condensation)
Ambient operating humidity 35% to 85%
Ambient storage temperature −25 to 65°C (with no icing or condensation)
Protection against electric
shock Class II (double insulation)
Pollution degree
(operating environment) 3 (EN 60947-5-1)
Conditional short-circuit
current 100 A (EN 60947-5-1)
5
A4EG
Structure and Nomenclature
Structure
Contact Forms
Operating Patterns
A4EG-C000041
A4EG-BE2R041
A4EG-BM2B041
*Refer to Dimensions on page 6 for information on the positions of
pushbutton switches A and B.
OPEN ON: CLOSED
CLOSED OFF: OPEN
Note: 1. The contact ON/OFF timing is not synchronized. Confirm
performance before application.
2. Direct opening only during grip.
Operating Characteristics
Chart (Enabling Switch Section)
Operating Stroke (Enabling Switch Section)
Operating Force (Enabling Switch Section:
Reference Values)
*HF: Holding force
Operating Force (Emergency Stop Switch
Section: Reference Values)
Operating Force (Pushbutton Switch Section:
Reference Value)
A4EG-C000041 A4EG-BE2R041
A4EG-BM2B041
Terminal 2
Terminal 1
Terminal 5
Terminal 6
Terminal 3
Terminal 4
Enabling Switch
Section
Terminal 2
Terminal 1
Terminal 5
Terminal 6
Terminal 3
Terminal 4
Terminal 8
Terminal 7
Emergency Stop
Switch Section/
Pushbutton Switch
Section
Three Positions: OFF - ON - OFF
Contact Configuration
Position 1
OFF OFF
Not Gripped Gripped to
Middle
Position
Gripped past
Middle
Position
Gripped lightly
Released
Released
Gripped Farther
Position 3Position 2
ON
Enabling Switch Emergency Stop Switch Pushbutton Switch
(5)
(7)
(6)
(8)
Terminal No.
Terminal No. Terminal No.
(5)
(7)
(6)
(8)
Terminal No. Terminal No.
(1) (3) (5)
(2) (4) (6)
Terminal No.
Terminal No.
*
*
*Terminal No. (5), (6): A4EG-C000041 only
Operation Terminal No. Position 1
▼
Position 2
▼
Position 3
▼
Enable output 1 to 2
3 to 4
Grip output 5 to 6
Operation Terminal No. Position 1
▼
Position 2
▼
Position 3
▼
Enable output 1 to 2
3 to 4
Pushbutton
switch Terminal No. Operation Contact
Emergency
stop switch
output
5 to 6
7 to 8
Operation (push) ON → OFF
Reset (turn reset) OFF → ON
Operation Terminal No. Position 1
▼
Position 2
▼
Position 3
▼
Enable output 1 to 2
3 to 4
Pushbutton
switch Terminal No. Operation Contact
Pushbutton
switch output
5 to 6
(pushbutton switch A) *Push OFF → ON
7 to 8
(pushbutton switch B) *Push OFF → ON
Operating characteristics Specified value
Enable output (ON) PT2 max. 3.6 mm
Max. enable holding position TT1 Approx. 4.2 mm
Enable direct opening position PT3 max. 6.0 mm
Max. stroke TT2 Approx. 6.7 mm
Operating characteristics Specified value
Enable operating force OF1 max. 14 N
Enable holding force HF *Approx. 8 N
Grip operating force OF2 max. 40 N
Operating characteristics Specified value
Operating force OF max. 14.7 N
Reset force RF max. 0.1 N·m
Operating characteristics Specified value
Operating force OF max. 4 N
A4EG
6
Dimensions (Unit: mm)
Enabling Grip Switches
Enabling switch
D4NS (order separately)
A4EG-OP3 Holding Key
(order separately)
48
(34)
47.6
102.6
44
60
(50)
174
(277)
54.2
76.2
Enabling switch
Conduit connector
MG20A-P-13B Flexible Super Gland
Manufactured by AVC Corporation of Japan (included)
48
(34)
174
60
(50)
(262)
38 44
Holding Key Mounted
A4EG-C000041
Enabling switch
Emergency stop switch
Conduit connector
MG20A-P-13B Flexible Super Gland
Manufactured by AVC Corporation of Japan (included)
48
(34)
(50)
63
174
(191)
(279)
38 44
A4EG-BE2R041
Holding Key Mounted
Enabling switch
Emergency stop switch
D4NS (order separately)
A4EG-OP3 Holding Key
(order separately)
48
(34)
174
(191)
(50)
63
(294)
44
47.6
102.6
76.2
54.2
7
A4EG
Accessories (Order Separately)
Enabling switch
Pushbutton
switch A
Pushbutton
switch B
Conduit connector
MG20A-P-13B Flexible Super Gland
Manufactured by AVC Corporation of Japan (included)
(50)
60
38
174
(189)
(277)
48
(34)
44
48
(34)
44
A4EG-BM2B041
Holding Key Mounted
Enabling switch
D4NS (order separately)
A4EG-OP3 Holding Key
(order separately)
48
(34)
174
(189)
60
(292)
44
47.6
102.6
76.2
54.2
(50)
83.2
43.3
235.9
Rubber Cover (Replacement Part)
A4EG-OP1
Mounting Bracket (for Securing the A4EG)
A4EG-OP2
Mounting surface
Two, 5.3-dia. holes
(88)
50
(82)
t3
(44)
Holding Key
A4EG-OP3
Enabling Grip Switch Mounted
Note: The screws are not included.
A4EG
8
Application Examples
Note: The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming
the usage conditions.
Application Overview
1. When the emergency stop switch S1 is pressed.
•The power supply to the motor M1 and M2 is turned OFF immediately when the emergency stop switch S1 is pressed.
•The power supply to the motor M1 is kept OFF until the reset switch S2 is pressed while the emergency stop switch S1 is released.
•When normal operating mode (M1 = ON, M2 = OFF) is selected on the selector switch S8, the power supply to the motor M2 is kept OFF until
the guard is closed and the reset switch S2 and S7 are pressed while the emergency stop switch S1 is released.
•When maintenance mode (M1 = OFF, M2 = ON) is selected on the selector switch S8, the power supply to the motor M2 is kept OFF until the
enabling switch is gripped to the middle position and the reset switch S2 and S7 are pressed while the emergency stop switch S1 is released.
2. Normal operating mode (the emergency stop switch S1 is released)
•Normal operating mode (M1 = ON, M2 = OFF) is selected on the selector switch S8. The enabling switch S3 is disabled.
•Power is supplied to motor M2 when the guard is closed.
•After opening of the guard is permitted by turning ON of the lock release enable signal, the lock release switch S5 is pressed, then the guard
lock is released and the guard is opened. Opening of the guard is detected by S4 and S6, and the power supply to the motor M2 is turned OFF
immediately (The power supply to the motor M1 is kept ON).
•The power supply to the motor M2 is kept OFF until the guard is closed and the reset switch S7 is pressed.
3. Maintenance mode (the emergency stop switch S1 is released)
•Maintenance mode (M1 = OFF, M2 = ON) is selected on the selector switch S8 after the motor M2 is stopped. S4 and S6 for detecting the
opening and closing of the guard are disabled.
•After opening of the guard is permitted by turning ON of the lock release enable signal, the lock release switch S5 is pressed, then the guard
lock is released and the guard is opened.
•The power supply to the motor M2 is turned ON while the enabling switch is gripped to the middle position.
•If the enabling switch is released or gripped past the middle position, the power supply to the motor M2 is turned OFF immediately.
•The power supply to the motor M2 is kept OFF until the enabling switch is gripped again to the middle position and the reset switch S7 is pressed.
Highest achievable PL/
safety category Model Stop category Reset
PLe/4 equivalent
A22TK-@-11-@@ Safety Key Selector Switch
D4NL / D4SL-N / D4JL Guard Lock Safety-door Switch (Mechanical Lock Type)
D4N / D4F Safety Limit Switch
A4EG Enabling Grip Switch
G9SX-GS226-T15 Safety Guard Switching Unit
G9SX-BC202 Flexible Safety Unit
0 Manual
Basic Unit
G9SX-BC
Logical AND
connection
Emergency
Stop Switch,
e.g., A22E
Enabling
Grip Switch
A4EG
Safety Key
Selector Switch
A22TK
Safety Guard
Switching Unit
G9SX-GS
Conveyor
Emergency Stop Switch
Normal Operating Mode
Maintenance Mode
Door
Enabling Grip Switch
When pressed, processing will stop.
When the door is opened, processing will stop.
Emergency Stop Switch
Door
Enabling Grip Switch
When pressed, processing will stop.
The Door Switch will be disabled.
The Enabling Grip Switch will be disabled.
Processing will be possible only when the operator is gripping
the Enabling Grip Switch.
Contactor
Guard Lock
Safety-door Switch,
e.g., D4NL
Emergency
Stop Switch
Selector Switch
Enabling Grip Switch
A4EG
9
KM4
KM3
+24V
M2
KM4
KM3
KM4KM3
PLC etc.
Open OpenOpenOpen
Feedback loop
S14
A2
S24 S44 S54
L1
X3X2X1 X4
T11
A1
T12 T21
Y1 Y3
T22 T61 T62
M1 M2
T71
Y2 Y4
T72 T31 T32 T33 T41 T42
OFF
AND
Auto
Manual
G9SX-GS226-T15
(Unit 2)
Control circuit
S7
+24V
S14
A2
S24
L1 L2
X1 X2
T11
A1
T12 T21 T22 T31 T32 T33
Y1
KM2
KM1
S2
+24V
KM1 KM2
M1
KM2
KM1
PLC etc.
+24V
Open
Feedback loop
Guard lock
Safety-door Switch
Condition monitoring of
Safety-door Switch
G9SX-BC202
(Unit 1)
Control circuit
Indicator
(Diagnostic check enabled)
Indicator
(Diagnostic check enabled)
S3
Enabling Grip Switch
A4EG
S4
OPEN
S5
Lock release enable signal
S6
UA UB
+24V
S8
Selector
Switch
Guard
S1
Emergency Stop
Switch
(2)
(1)
(4)
(3)
S1: Emergency Stop Switch
S2, S7: Reset switches
S3: Enabling Grip Switch A4EG
S4: Guard lock Safety-door Switch
S5: Lock release switch
S6: Safety Limit Switch
S8: Safety Key Selector Switch
KM1 to KM4: Magnetic contactors
M1 to M2: Motor
Reset switch S2
KM1, KM2
NO contact
Unit 1
Logical AND output L1
Emergency
Stop Switch S1
Unit 1 S14, S24
<
G9SX-BC202(Unit 1)
>
<
G9SX-GS226-T15(Unit 2)
>
(10)
(8)(3)
(6)(4)
(1) (7)(5) (9)
(2)
KM3, KM4
NO contact
Unit 2
Logical AND input T41
Lock release
switch
Guard Lock
Safety-door Switch
S4
Mode selection input M2
(Selector Switch S8)
Mode selection input M1
(Selector Switch S8)
Reset switch S7
Enabling Switch S3
S5
Unit 2 S14, S24
Timing Chart
(1) Start the unit 2 in normal operating mode.
(2) Switch to maintenance mode by operating the selector switch.
(3) After checking that the motor has stopped, press the lock
release switch to release the guard lock, and open the door to
perform maintenance.
(4) Grip the enabling switch to the middle position.
(5) Press the reset switch to start the unit 2 in maintenance mode.
(6) Release (or grip) the enabling switch to stop the unit 2.
(7) After closing the guard and switching to operating mode by operating the
selector switch, press the reset switch to restart the unit 2.
(8) After checking that the motor has stopped after a stop signal is input
during operating mode, press the lock release switch and open the guard
to stop the unit 2.
(9) Close the guard and press the reset switch to restart the unit 2.
(10)Operate the emergency stop switch -> All the units stop.
Note: The lock release enable signal
must be configured so that it
should turn ON after
dangerous movement is
stopped and safety is ensured
for the door to open.
A4EG
10
Safety Precautions
Indication and Meaning for Safe Use
!WARNING
•This product is a switch for teaching the machine such as robot in
hazardous area. The machine is allowed to operate only when
operating the switch continuously. Configure the system so that the
machine can be operated only at position 2.
•Apply load current not to exceed the rated value.
•Do not use the switch submerged in oil or water or in locations
continuously subject to splashes of oil or water. Doing so may
result in oil or water entering the switch.
•Do not use the switch in locations where explosive or flammable
gasses may be present.
•Mount the switch securely to prevent it from falling. Otherwise,
injuries may occur.
•The durability of the switch is greatly influenced by the switching
conditions. Always test the switch under actual conditions before
application and use it in a switching circuit for which there are no
problems with performance.
•Always attach the cover after completing wiring and before using
the switch. Electric shock may occur if the switch is used without
the cover attached.
•The user must not maintain or repair equipment incorporating the
switch. Contact the manufacturer of the equipment for any
maintenance or repairs required.
•Do not disassemble or remodel the switch in any case, or the
switch will not operate normally.
•Do not override by inserting the Holding Key itself in the door
switch.
•Configure the circuit so that the machine does not operate when
operating the Enabling Grip Switch while the Holding Key is being
inserted in the door switch.
•Do not impose excessive vibration or shock on the Door Switch
while the Holding Key is inserted. Excessive vibration or shock
may cause the Switch to fail or break.
•Do not incline and pull the switch body or do not impose shock on
the switch body in the directions shown with the arrows in Fig.1.
Otherwise, the switch may be damaged and may not operate
properly.
•Refer to the D4NS Safety-door Switch Datasheet and Instruction
Sheet about the storage, ambient conditions, the details and
handling of the Switch.
•Do not contact the enabling switch section to the mounting bracket
in Fig.2. Doing so may resoult in malfunction.
• Do not hold the Enabling Grip Switch Device at Position 2 by any
other methods except for handling. Otherwise, the original function
of the Enabling Grip Switch Device is not worked.
Operating Environment
• This switch is designed for use indoors. Using the switch outdoors
may damage it.
• The switch contacts can be used with either standard loads or
microloads. Once the contact be used to switch smaller loads. The
contact surfaces will become rough once they have been used and
contact reliability for smaller loads may be reduced.
• Do not use the switch in the following locations.
• Locations where the interior of the Protective Door may into
direct contact with cutting chips, metal filings, oil chemicals
• Locations subject to detergents, thinners, or other solvents
• Locations subject to sudden temperature changes
• Locations subject to high humidity and condensation
• Locations subject to severe vibration
• Do not use the switch where corrosive gasses (e.g., H2S, SO2,
NH3, HNO3, or Cl2) are present or in locations subject to high
temperature and humidity. Doing so may result in damage to the
switch as a result of contact failure or corrosion.
• Do not store the switch where corrosive gasses (e.g., H
2
S, SO
2
, NH
3
,
HNO
3
, or Cl
2
) or dust are present or in high temperature and humidity.
• If the switch is not turned ON and OFF for a long period of time,
contact resistance may be increased or continuity failure may
occur due to contact oxidation.
Indicates a potentially hazardous situation
which, if not avoided, will result in minor
or moderate injury, or may result in
serious injury or death. Additionally there
may be significant property damage.
Precautions
for Safe Use
Supplementary comments on what to do
or avoid doing, to use the product safely.
Precautions
for Correct
Use
Supplementary comments on what to do
or avoid doing, to prevent failure to
operate, or undesirable effect on product
performance.
Always verify the operation of the safety functions before
starting the system. Not doing so may result in the safety
functions not performing as expected if the wiring or
settings are incorrect or the switches have failed.
Do not drop the switch. Doing so may damage the switch
and the system may continue to operate, possibly
causing injury or death.
Precautions for Safe Use
WARNING
Precautions for Correct Use
Arrow indicates
insertion-pull direction.
Holding Key
A4EG-OP3
(sold separately)
D4NS (sold separately)
A4EG
No operation
Insertion-pull direction
(Perpendicular direction)
No operation
No operation No operation
Top position
Mounting surface
Magnified View
Fig. 1
Mounting bracket A4EG-OP2
(sold separately)
Enabling switch section
Fig. 2
11
A4EG
Mounting Method
Specified Tightening Torque
Loose screws may result in malfunction.Be sure to tighten each screw
of the Switch properly.
Cover Mounting
• Dislocation of the seal rubber or foreign substance on the seal
rubber reduces seal performance of the switch. Mount the cover
after confirming that there is no abnormality on the seal rubber. If
the seal rubber cracks or breaks, replace the Cover with a new one
(A4EG-OP1 Rubber Cover, separately sold).
• Do not touch the rubber boot with sharp objects. Otherwise, the
rubber boot may break and the operating characteristics and the
seal performance may not be satisfied.
Installing Mounting Bracket
•Securely install the Mounting Bracket using M5 screws and
washers and tighten them to a torque of 2.4 to 2.8 N·m.
Holding Key Type (sold separately)
•Use the A4EG-OP3 Holding Key when using the A4EG combining
with the door switch.
•Use the D4NS Safety-door Switch.
•Loose screws may result in malfunction. Tighten the screws at the
specified torques. Adhesive is recommended to prevent screws
from being loose.
The specified torque: 0.5 to 0.7 N·m (Mounting screw, 2pcs.)
•Do not impose excessive force on the tip of the Holding Key or do
not drop the switch body when the Holding Key is mounted on the
switch body. Otherwise the Holding Key may deform or break. Stop
using in case that deformation or breakage of the Holding Key
occurs.
•Use the provide Spring washers and Mounting screws when
mounting the Holding Key. Fit a tip of a slotted-screw driver on the
head of the Mounting screw as shown in the following figure when
tightening Mounting screws. The Mounting screws cannot be
released once tightened.
•As shown in figure 1 in Precautions for Safe Use, install the D4NS
so that its mounting surface is above the highest part of the A4EG.
•As shown in figure 1 in the Precautions for Safe Use, use the
Holding Key inserted vertically to the insert hole.
Using the A4EG-BE2R041 (Enabling Grip Switch
Equipped with an Emergency Stop Button)
If the A4EG is installed in a machine, do not use the A4EG alone as
an emergency stop switch or as an emergency shutoff switch as
specified by SEMI-S2.
SEMI-S2 specifies the installation of emergency shutoff switches at
specified intervals on equipment. The A4EG can be removed from the
equipment, and so may not satisfy the requirements of SEMI. Use the
A4EG in combination with emergency stop switches or emergency
shutoff switches that are installed at fixed positions.
Wiring
•Confirm that safety is satisfied on the operation of the equipment
to wire.
•Do not put the electric power when wiring. Otherwise electric shock
may occur.
•Use an adequate diameter of cable. The seal performance is
reduced when the diameter is smaller than the adequate diameter.
•Use the conforming sizes of lead wires to the apply voltage and
current.
Conforming cable size
Recommended multi-wire cable size: AWG20 to 18
(0.5 to 0.75 mm2)
Recommended cable diameter: 8.0 to 13 mm
(used with provided Conduit
Connector)
•Do not pull the lead wires with excessive force. Doing so may
disconnect them.
•Do not pull the cable when the Enabling
Switch Device is hung on the Bracket.
•Use crimp terminals with insulator tube for wiring.
Recommended crimp terminal (Ring tongue terminal, Nylon-
insulated): J.S.T. Mfg Co. FN1.25-3.7 (F Type)/
N1.25-3.7 (Straight Type)
•Cut and crimp the lead wires in length as shown in the following
table.
Otherwise, excess length may cause the cover to rise and not fit
properly.
•Do not let particles such as small piece of lead wire in the switch
body when wiring.
Item Specified torque
Cover mounting screw 1.1 to 1.3 N·m
Terminal screw 0.4 to 0.5 N·m
Holding Key mounting screw 0.5 to 0.7 N·m
Conduit Connector
(Conforming spanner 27 mm
(width across flats)) 2.0 to 2.4 N·m
Mounting Bracket 2.4 to 2.8 N·m
Seal Cover, A4EG-OP1 (sold separately)
Rubber boot
Seal rubber
Holding Key
A4EG-OP3 (sold separately)
A4EG
Mounting screw, 2 pcs.
(provided)
Spring washer, 2 pcs.
(provided)
Length of lead wires Terminal No. 1-4 5-8
L1/L2
(Length to the centers of crimp terminals)
40±2 mm 25±2 mm
Bracket
A4EG-OP2
(sold separately)
L
l F
B
D dia.
dz dia.
t: 0.8 mm
dz dia.: 3.7 mm
D dia.4.0 mm
B: 5.5 mm
L: 15.7 mm
F: 4.0 mm
I: 9.0 mm
Terminal 1
Terminal 2 Terminal 3
Terminal 4
Terminal 5 Terminal 6 Terminal 7 Terminal 8
L1
L2
Terminal ArrangementLead Wire Lengths
12
A4EG
Terminal No. and Circuit Configuration
•Assemble all of the parts without leaving any parts as shown in the
following figure when mounting Conduit Connector.
Mount Rubber packing, Conduit part, Cable Seal part and Spiral
Nut part in order.
•Both of the switches is ON when pushing the two push buttons
simultaneously. Confirm that safety is satisfied on the operation of
the equipment to wire. (A4EG-BM2B041)
•Perform maintenance inspections periodically.
Model Circuit Terminal No.
A4EG-C000041 Enable output 1-2, 3-4
Grip output 5-6
A4EG-BE2R041
Enable output 1-2, 3-4
Emergency Stop
Pushbutton Switch output 5-6, 7-8
A4EG-BM2B041 Enable output 1-2, 3-4
Pushbutton Switch output 5-6, 7-8
Conduit part
Rubber packing
Cable seal part
Spiral nut part
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2019.1
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2019 All Right Reserved.