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Emergency Stop Switch (16-dia.)
A165E
CSM_A165E_DS_E_7_2
Separate Construction with Smallest
Class of Depth in the World
• Direct opening mechanism to open contacts in emergencies,
such as when they are welded.
• Conforms to EN 60947-5-5.
• Includes a safety lock to prevent misuse.
• Features separate construction that allows the Switch to be
separated for easier wiring and one-piece construction that
allows easier handling.
• Models available with 3 contacts built into a single block
(A165E-U).
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Be sure to read the “Safety Precautions” on page 9.
Model Number Structure
List of Models
Diameter of
Operation Unit
Function
Model
Shape
Separate
construction
A165E
(30-mm model)
30-mm models
40-mm models
Push-Lock,
turn-reset
A165E-@-03U
One-piece
construction
(30-mm model)
Model Number Legend (Completely Assembled).........................Shipped as a set that includes the Operation Unit
and light source.
LS 24D 02
IP65 (Oil-resistant)
1. Operation Unit Shape and Functions
Code
Functions
S
Non-lighted
LS
Lighted
Pushbutton
30 dia.
M
Push-lock,
Non-lighted turn-reset
LM
Lighted
40 dia.
2. Light Source
Code
Type
Operation
voltage
Rated
voltage
None Non-lighted ---
---
24D
24 VAC/
VDC
LED
24 VAC/
VDC±5%
3. Contacts
Code
Description
01
SPST-NC
02
DPST-NC
03U
TPST-NC *
* TPST-NC models have
one-piece construction with
the contact unit. Only
non-lighted models are
available.
Note: Models with separate construction
(SPST-NC and DPST-NC) are for
normal loads only. One-piece models
(TPST-NC) are for either normal loads
or microloads.
1
A165E
Ordering Information
List of Sets
Illumination
Rated voltage
LED
Pushbutton color
Pushbutton size
Terminal
Contact form
24 VAC/VDC
30 dia.
Non-lighted
---
LED
24 VAC/VDC
Red
Solder terminal
40 dia.
Non-lighted
---
Non-lighted
---
30 dia.
SPST-NC
A165E-LS-24D-01
DPST-NC
A165E-LS-24D-02
SPST-NC
A165E-S-01
DPST-NC
A165E-S-02
SPST-NC
A165E-LM-24D-01
DPST-NC
A165E-LM-24D-02
SPST-NC
A165E-M-01
DPST-NC
A165E-M-02
A165E-S-03U
TPST-NC
40 dia.
Model
A165E-M-03U
List of Sets (in Different Colors)
Pushbutton color *
Illumination
Pushbutton size
Terminal
Contact form
Yellow
SPST-NC
Gray
Non-lighted
Yellow
30 dia.
Gray
Solder terminal
DPST-NC
Yellow
TPST-NC
Gray
Model
A165E-SY-01
A165E-SGR-01
A165E-SY-02
A165E-SGR-02
A165E-SY-03U
A165E-SGR-03U
* Models with yellow or gray pushbutton colors cannot be used as emergency switches.
Individual Parts (for Switches with Separate Construction)
Operation Units
Appearance
30
dia.
40 dia.
Switches
Illumination
Model
Non-lighted
A165E-S
Lighted
A165E-LS
Non-lighted
A165E-M
Appearance
Illumination
Non-lighted
Lighted
Lighted
A165E-LM
Model
SPST-NC
A165E-01
DPST-NC
A165E-02
SPST-NC
A165E-01L
DPST-NC
A165E-02L
Contact
form
Model
Switch Units
Lamps
Appearance
Contact
form
LED color
Red
Bright
Rated
voltage
Model
5 VDC
A16-5DSR
12 VAC/VDC
A16-12DSR
24 VAC/VDC
A16-24DSR
Appearance
Illumination
Lighted
SPST-NC
A165E-R-24D-01
DPST-NC
A165E-R-24D-02
2
A165E
Accessories (Order Separately)
Item
Appearance
Type
Model
Precautions
Yellow Plate
Yellow, 45 dia.
A16Z-5070
Use this as an emergency stop
nameplate.
Panel Plug
Round
A16ZT-3003
Used for covering the panel cutouts
for future panel expansion.
Degree of protection: IP40
Color: Black
Tightening Tool
---
A16Z-3004
Useful for repetitive mounting. Be
careful not to tighten excessively.
A16Z-5080
Convenient for extracting the Switch
and Lamp.
Extractor
Specifications
Certified Standard Ratings
UL508, CSA C22.2 No.14, CCC(GB14048.5)
Models with Separate Construction
Rated voltage
125 VAC
250 VAC
30 VDC
Resistive load
5A
3A
3A
Models with One-piece Construction
Rated voltage
125 VAC
250 VAC
30 VDC
Resistive load
1A
0.5 A
1A
Certification
body
Standards
File No.
UL *
UL508,
CSA C22.2 No.14
E41515
TÜV SÜD
EN60947-5-1 (certified
direct opening),
EN60947-5-5
Consult your OMRON
representative for
details.
CQC (CCC)
GB14048.5
2003010303070678
* Certification for CSA C22.2 No. 14 has been obtained. Separate
construction models have been certified for the Switch Unit.
Switch Ratings
Models with Separate Construction
TÜV(EN60947-5-1)
Rated voltage
Models with Separate Construction
Rated voltage
250 VAC
30 VDC
Certified Standards
Resistive load
3A
3A
Resistive load
125 VAC
250 VAC
30 VDC
5A
3A
3A
Note: Minimum applicable load: 5 VDC, 150 mA
Models with One-piece Construction
Rated voltage
250 VAC
30 VDC
Resistive load
0.5 A
1A
Models with One-piece Construction
Rated voltage
Resistive load
125 VAC
250 VAC
30 VDC
1A
0.5 A
1A
Note: Minimum applicable load: 5 VDC, 1 mA
LED Ratings
(Only for Models with LEDs)
Rated voltage
24 VAC/VDC
Rated current
8 mA
Operation voltage
24 VAC/VDC±5%
3
A165E
Characteristics
Type
Emergency Stop Switch
Non-lighted
A165E-S/A165E-M
Item
Allowable operating Mechanical
frequency
Electrical
20 operations/minute max.
Insulation resistance
100 MΩ min. (at 500 VDC)
Lighted
A165E-LS/A165-LM
Non-lighted,
One-piece construction
A165E-U
10 operations/minute max.
Between terminals of same polarity 1,000 VAC, 50/60 Hz for 1 min
Between terminals of different
polarity
Dielectric strength
2,000 VAC 50/60 Hz for 1 min
Between each terminal and ground 2,000 VAC 50/60 Hz for 1 min
1,000 VAC, 50/60 Hz for 1 min *1
Between lamp terminals
Vibration resistance Malfunction
Shock resistance
Durability
---
10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Destruction
500 m/s2
Malfunction
300 m/s2 max.
(malfunction within 1 ms)
Mechanical
100,000 operations min.
Electrical
100,000 operations min.
150 m/s2 max.
(malfunction within 1 ms)
Degree of protection
IP65 Oil-resistant *2
Electric shock protection class
Class II
IP65 *2
IP65 Oil-resistant *2
PTI (tracking characteristic)
175
Degree of contamination
3 (EN60947-5-1)
Weight
Approx. 16 g (in case of DPST-NC Switches)
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)
*1. LED not mounted. (Test them with the LED removed.)
*2. Degree of protection from the front of the panel.
Operating Characteristics
Type
Characteristics of models
with separate construction
Item
Operating force
OF max.
Characteristics of models
with one-piece construction
14.7 N
14.7 N
Releasing torque RF max.
0.1 N·m
0.1 N·m
Pretravel
3.5±0.5 mm
3±0.5 mm
PT
Structure and Nomenclature
Operation Unit
Color
Operation Unit Color
• Models with LED illumination: Red
• Non-lighted models * : Red, yellow, or gray
Operation Unit
Degree of Protection
IP65 oil resistance
Switch
Switch Holder
Specifications
(The above figure is example of the
separate construction model.)
For standard load
125 VAC, 5 A
250 VAC, 3 A
30 VDC, 3 A
* Models with yellow or gray pushbutton colors cannot be used as emergency switches.
4
A165E
Dimensions
(Unit: mm)
A165E-S
Panel cutout
dimensions
30 dia.
Mounting ring
3+0.1
0 dia.
12.3
15.8
M16 × 1
7.8+0.3
0
Non-lighted models
30 mm diameter
16+0.2
0 dia.
Lock ring
Lock
Packing (t=0.5)
1.4
12.1
18
2.8
2.6
20±0.8
10.8±5
22.0±0.8
28.5±0.8
· When applying a coating such as
paint to the panel, dimensions
after the coating must satisfy the
specified dimensions.
· Recommended panel thickness:
0.5 to 3.2 mm.
A165E-LS
Mounting ring
M16 × 1
4.85
3+0.1
0 dia.
7.8+0.3
0
Panel cutout
dimensions
30 dia.
12.3
15.8
Lighted models
30 mm diameter
Lock ring
16+0.2
0 dia.
Lock
Packing (t=0.5)
1.4
18
12.1
2.8
2.6
· When applying a coating such as
paint to the panel, dimensions
after the coating must satisfy the
specified dimensions.
· Recommended panel thickness:
0.5 to 3.2 mm.
10.8±0.5
20±0.8
22.1±0.8
28.5±0.8
A165E-S-03U
21.5±0.5
30 dia.
1
M16 × 1
Panel cutout
dimensions
3+0.1
0 dia.
+0.2
16 0 dia.
7.8+0.3
0
Non-lighted,
One-piece construction models
30 mm diameter
Lock
20.5±0.8
28.5±0.8
Packing (t=0.5)
Lock ring
Mounting ring
· When applying a coating such as
paint to the panel, dimensions
after the coating must satisfy the
specified dimensions.
· Recommended panel thickness:
0.5 to 3.2 mm.
5
A165E
A165E-M
40 dia.
Non-lighted models
40 mm diameter
Panel cutout
dimensions
Mounting ring
M16 × 1 Switch
3+0.1
0 dia.
12.3
15.8
7.8+0.3
0
0.5
16+0.2
0 dia.
Lock ring
Lock
Packing (t=0.5)
1.4
· When applying a coating such as
paint to the panel, dimensions
after the coating must satisfy the
specified dimensions.
· Recommended panel thickness:
0.5 to 3.2 mm.
18
12.1
2.8
2.6
10.8±0.5
20±0.8
21.1±0.8
28.5±0.8
A165E-LM
40 dia.
Panel cutout
dimensions
Mounting ring
M16 × 1 Switch
15.8
12.3
0.5
Lock ring
Lock
6.05
18
2.8
Packing (t=0.5)
20±0.8
3+0.1
0 dia.
16+0.2
0 dia.
7.8+0.3
0
Lighted models
40 mm diameter
10.8±0.5
22.1±0.8
28.5±0.8
· When applying a coating such as
paint to the panel, dimensions
after the coating must satisfy the
specified dimensions.
· Recommended panel thickness:
0.5 to 3.2 mm.
A165E-M-03U
40 dia.
21.5±0.5
1
M16 × 1
Lock
20.5±0.8
Panel cutout
dimensions
16+0.2
0 dia.
3+0.1
0 dia.
7.8+0.3
0
One-piece construction models
40 mm diameter
28.5±0.8
Packing (t=0.5)
Lock ring
Mounting ring
· When applying a coating such as
paint to the panel, dimensions
after the coating must satisfy the
specified dimensions.
· Recommended panel thickness:
0.5 to 3.2 mm.
6
A165E
Accessories
Yellow Plate (Vinyl Chloride)
Panel Plugs (Round Type)
A16Z-5070
A16ZT-3003
18 dia.
• Select an appropriate Panel Plug according to the panel design and
mount from the front side of the panel. Panel cutout dimensions are
the same as those for the Operation Unit.
15.6 dia.
45 dia.
t=1
Tightening Tool
Lock Ring
A16Z-3004
Rough surface
Rough
surface
15.8 ±0.1 dia.
12 × 12
18 dia.
0
15 dia. −0.1
Terminal Arrangement
SPST Switches
DPST Switches
NC1 L−
NC1 L−
NC2
NC1 L+
NC1 L+
NC2
SW1
SW1
SW2
TPST Switches
NC2
NC1
Stopper
NC3
Note: The L+ and L− terminals are not available with the non-lighted models.
7
A165E
Installation
Mounting to the Panel (Models with Separate Construction)
After installing the Operation Unit, snap in the Switch from the back of the panel.
(1) Installing the Operation Unit
• Attach rubber packing or the
Yellow Plate onto the Operation
Unit from its terminal side. Insert
the Operation Unit into the panel
from the front. Install the lock ring
and mounting nut from the
terminal side and tighten.
• Adjust the slits on the hole of
rubber packing and Yellow Plate
Lock
to the protruding part of the Unit.
• Rubber packing is not necessary
when the Yellow Plate is used.
Cutout
• Tighten the nut to the torque of
0.29 to 0.49 N·m.
• The Operation Unit should be
installed with its
protruding part adjusted to the slit
of the panel hole.
• Align the lock ring to the groove of Lock hole
the Operation Unit so that the
edge is drawn to the panel side.
Panel
Mounting nut
Rubber packing
(included with the
product) or Yellow
Plate (sold separately)
Edge
Panel
Lock ring (included
with the product)
Mounting nut (included
with the product)
(2) Mounting the Switch
Lock ring (included
with the product)
Rubber packing (included with the product)
or Yellow Plate (sold separately)
(3) Removing the Switch
• Snap on the Switch to the Operation Unit.
• Make sure that the Switch has the correct orientation when snapping it onto the
Operation Unit.
• Align the white dot on the Operation Unit with the guide groove on the side of
the Switch marked with an “L” as shown below, and push the Switch into the
Operation Unit until it clicks into place. Confirm that the Switch is securely in
place before using.
• Insert the prongs of the A16Z-5080 Extractor between the Switch and the
Operation Unit, grip the Switch, and pull to remove.
Guide groove
White dot
Extractor (A16Z-5080)
L marking
(4) Installing the LED Lamp
• When mounting the Lamp, make sure it is facing the direction shown in the
following diagram. Insert the Lamp while matching the protruding part of the
Lamp and the small guides on the outer surface of the switch.
Narrow guide
Protruding part
Wide guide
8
A165E
Safety Precautions
Be sure to read the precautions for all A165E models in the website at: http://www.ia.omron.com/.
CAUTION
Precautions
for Safe Use
Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury or in property damage.
Supplementary comments on what to do
or avoid doing, to use the product safely.
!CAUTION
If the Operation Unit is separated from the Switch Unit, the
equipment will not stop, creating a hazardous condition.
Always confirm that safety functions are operating before
starting operation.
Precautions for Correct Use
Using the Microload
• Insert a contact protection circuit, if necessary, to prevent the
reduction of life expectancy due to extreme wear on the contacts
caused by loads where inrush current occurs when the contact is
opened and closed.
• The [email protected] (one-piece construction) allows both a standard
load (125 V at 1 A, 250 V at 0.5 A) and a microload. If a standard
load is applied, however, the microload area cannot be used. If the
microload area is used with a standard load, the contact surface
will become rough, and the opening and closing of the contact for
a microload may become unreliable.
• The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability
level of 60% (λ 60) (conforming to JIS C5003).
• The equation, λ 60 = 0.5 x 10−6/time indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of
60%.
Voltage (V)
Indication and Meaning for Safe Use
Mounting
• Always make sure that the power is turned OFF before mounting,
removing, or wiring the Switch, or performing maintenance.
Electrical shock or fire may result if the power is not turned OFF.
• The tightening torque is 0.29 to 0.49 N·m.
0.15 mA
Wiring
• Be sure to use electrical wires that are a size appropriate for the
applied voltage and carry current. Perform soldering according to
the conditions given below. If the soldering is not properly
performed, abnormal heating may result, possibly resulting in fire.
1. Hand soldering: 30 W, within 5 s
2. Dip soldering: 240°C, within 3 s
Wait for one minute after soldering before exerting any external
force on the solder.
• Use non-corrosive resin fluid as the flux.
• Make sure that the electric cord is wired so that it does not touch
the Unit. If the electric cord will touch the Unit, then electric wires
with a heat resistance of 100°C min. must be used.
• After wiring the Switch, maintain an appropriate clearance and
creepage distance.
Operating Environment
• The IP65 model is designed with a degree of protection so that it
will not sustain damage if it is subjected to water from any direction
to the front of the panel.
• The Switch is intended for indoor use only. Using the Switch
outdoor may cause it to fail.
Area of use
Invalid
area
1 mA
Current (mA)
LEDs
The LED current-limiting resistor is built-in, so external resistance is
not required.
Rated voltage
24 VAC/VDC
Internal limiting resistor
2.4 kΩ
Operating Torque
• Do not exceed an operating torque of 0.49 N·m in the direction of
rotation.
• Do not pull the operating button or apply excessive force to any
side of the button.
Otherwise it may be damaged.
9
A165E
Others
• The oil-resistant IP65 uses NBR rubber and is resistant to general
cutting oil and cooling oil. Some special oils cannot be used with
the oil-resistant IP65, however, so contact your OMRON
representative for details.
• If the panel is to be coated, make sure that the panel meets the
specified dimensions after coating.
• Due to the structure of the Switch, severe shock or vibration may
cause malfunctions or damage to the Switch.
Also, most Switches are made from resin and will be damaged if
they come into contact with sharp objects. Particularly scratches
on the Operation Unit may create visual and operational obtrusions.
Handle the Switches with care, and do not throw or drop them.
Do not allow the
Switch to drop and hit
the floor.
Do not place or drop
heavy objects on the
Switch.
Do not operate the
Switch with hard or
sharp objects.
Hammer
Screwdriver
10
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.
2015.9
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 2015 All Right Reserved.
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