CSM_D4A-_N_DS_E_4_2
1
General-purpose Limit Switch
D4A-@N
The Limit Switch with Better Seal,
Shock Resistance, and Strength
•A double seal on the head, a complete gasket cover, and
other features ensure a better seal (meets UL NEMA 3, 4,
4X, 6P, 12, 13).
•Wide standard operating temperature range:
−40°C to +100°C (standard type).
•Models with fluoro-rubber available for greater resistance
to chemicals.
•Block mounting method also reduces downtime for
maintenance.
•DPDT, double-break models available for complex
operations.
•Approved by UL, CSA, and CCC (Chinese standard).
(Ask your OMRON representative for information on
approved model.)
Be sure to read Safety Precautions on page 14 to 15 and
Safety Precautions for All Limit Switches.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Model Number Structure
Model Number Legend (Not all combinations are possible. Ask your OMRON representative for details.)
D4A-@@@@N (Set model number)
(1) (2) (3)
*1. Use the D4A-0017N Special Head.
*2. Use the D4A-0018N Special Head.
Note: Fluoro-rubber sealed type is also available.
(1) Receptacle box
1 : 1/2-14 NPT conduit (SPDT, double-break)
2 : 1/2-14 NPT conduit (DPDT, double-break)
3 : G 1/2 conduit (SPDT, double-break)
4 : G 1/2 conduit (DPDT, double-break)
(2) Switch Box
1 : SPDT, double-break, without indicator
3 : SPDT, double-break, neon lamp
E : SPDT, double-break, LED (24 VDC, leakage current: 1.3 mA)
5 : DPDT, double-break, simultaneous operation, without indicator
7 : DPDT, double-break, sequential operation, without indicator *1
9 : DPDT, double-break, center neutral operation, without indicator *2
L : DPDT, double-break, simultaneous operation, neon lamp
P : DPDT, double-break, simultaneous operation, LED
(3) Head
01 : Roller lever, standard
02 : Roller lever, high-sensitivity
03 : Roller lever, low torque
04 : Roller lever, high-sensitivity, low torque
05 : Roller lever, maintained
17 : Roller lever, sequential operation
18 : Roller lever, center neutral operation
06 : Side plunger, standard
07-V : Side plunger, vertical roller
07-H : Side plunger, horizontal roller
08 : Side plunger, adjustable
09 : Top plunger, standard
10 : Top plunger, roller
11 : Top plunger, adjustable
12 : Flexible rod, spring wire
14 : Flexible rod, plastic rod
15 : Flexible rod, cat whisker
16 : Flexible rod, coil spring
2
D4A-@N
Ordering Information
SPDT, Double-break Switches
Note: 1. Switches are also available with @1/2-14 NPT conduits. The model numbers correspond as follows:
(Examples) G 1/2 Conduits 1/2-14 NPT Conduits
D4A-3@@@N D4A-1@@@N
D4A-4@@@N D4A-2@@@N
2. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating temperature range for these Switches, however,
is −10 to +120°C.) Add “-F” to the model number. (Example: D4A-3101N becomes D4A-3101N-F.) Ask your nearest OMRON representative for details.
*1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it separately (refer to Levers on page 12).
*2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock.
Set model number
Receptacle box G 1/2 Conduit
Indicator Without indicator With neon lamp indicator (AC)
With LED indicator (DC)
Model Approved
standards Model Approved
standards Model
Actuator
Roller lever *1
Standard D4A-3101N UL, CSA D4A-3301N UL, CSA D4A-3E01N
High-sensitivity D4A-3102N UL, CSA D4A-3302N UL, CSA D4A-3E02N
Low-torque D4A-3103N UL, CSA --- --- ---
High-sensitivity,
Low-torque D4A-3104N UL, CSA D4A-3304N UL, CSA ---
Maintained *2 D4A-3105N UL, CSA D4A-3305N UL, CSA D4A-3E05N
Side plunger
Standard D4A-3106N UL, CSA --- --- ---
Vertical roller D4A-3107-VN UL, CSA D4A-3307-VN UL, CSA D4A-3E07-VN
Horizontal roller D4A-3107-HN UL, CSA D4A-3307-HN UL, CSA ---
Adjustable D4A-3108N UL, CSA D4A-3308N UL, CSA D4A-3E08N
Top plunger
Standard D4A-3109N UL, CSA D4A-3309N UL, CSA ---
Roller D4A-3110N UL, CSA D4A-3310N UL, CSA ---
Adjustable D4A-3111N UL, CSA D4A-3311N UL, CSA ---
Flexible rod
Spring wire D4A-3112N UL, CSA D4A-3312N UL, CSA D4A-3E12N
Plastic rod D4A-3114N UL, CSA D4A-3314N UL, CSA D4A-3E14N
Cat whisker D4A-3115N UL, CSA D4A-3315N UL, CSA D4A-3E15N
Coil spring D4A-3116N UL, CSA D4A-3316N UL, CSA D4A-3E16N
3
D4A-@N
DPDT, Double-break Switches
Note: 1. Switches are also available with @1/2-14 NPT conduits. The model numbers correspond as follows:
(Examples) G 1/2 Conduits 1/2-14 NPT Conduits
D4A-3@@@N D4A-1@@@N
D4A-4@@@N D4A-2@@@N
2. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating temperature range for these Switches, however,
is −10 to +120°C.) Add “-F” to the model number. (Example: D4A-4501N becomes D4A-4501N-F.) Ask your nearest OMRON representative about delivery
times and prices.
*1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it separately (refer to Levers on page 12).
*2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock.
Receptacle box
Receptacle box G 1/2 Conduit
Indicator Without indicator
With neon lamp indicator (AC)
With LED indicator (DC)
Actuator Model Approved standards Model Model
Roller lever *1
Standard D4A-4501N UL, CSA D4A-4L01N D4A-4P01N
High-sensitivity D4A-4502N UL, CSA --- ---
Low-torque D4A-4503N UL, CSA --- ---
High-sensitivity,
Low-torque D4A-4504N UL, CSA --- ---
Maintained *2 D4A-4505N UL, CSA --- ---
Sequential operation D4A-4717N UL, CSA --- ---
Center neutral
operation D4A-4918N UL, CSA --- ---
Side plunger
Standard D4A-4506N UL, CSA --- ---
Vertical roller D4A-4507-VN UL, CSA --- ---
Horizontal roller D4A-4507-HN UL, CSA --- ---
Adjustable D4A-4508N UL, CSA --- ---
Top plunger
Standard D4A-4509N UL, CSA --- ---
Roller D4A-4510N UL, CSA D4A-4L10N D4A-4P10N
Adjustable D4A-4511N UL, CSA --- ---
Flexible rod
Spring wire D4A-4512N UL, CSA --- ---
Plastic rod D4A-4514N UL, CSA --- ---
Cat whisker D4A-4515N UL, CSA --- ---
Coil spring D4A-4516N UL, CSA --- ---
Individual Parts
Type G1/2 conduit *11/2-14NPT conduit *2
Appearance Model
Approved standards
Model
Approved standards
SPDT dou-
ble-break D4A-3000N UL, CSA D4A-1000N UL, CSA
*1. M6-screw mounting
(standard mounting)
*2. 10-32UNF-screw mounting
(standard mounting)
DPDT dou-
ble-break D4A-4000N UL, CSA D4A-2000N UL, CSA
4
D4A-@N
Switch Box
Heads
*1. Levers for Roller Lever Switches are optionally available. Select the lever
from those listed in this data sheet and order (refer to Levers on page 12).
*2. The D4A-C00 adjustable roller lever is too heavy and long for these heads
and it should not be used or mechanical malfunction will result.
*3. These heads cannot be used for double break operations.
Indicator Without indicator With neon lamp indicator (AC) With LED
indicator (DC)
Appearance Model Approved
standards Model Approved
standards Model
SPDT double-
break D4A-0100N UL, CSA D4A-0300N UL, CSA D4A-0E00N
DPDT double-
break
Simultaneous
operation D4A-0500N UL, CSA D4A-0L00N --- D4A-0P00N
Sequential
operation D4A-0700N UL, CSA --- --- ---
Center neutral
operation D4A-0900N UL, CSA --- --- ---
(Without indicator lamp)
(Without indicator lamp)
Model Approved
standards
Appearance
Roller lever *1
Standard D4A-0001N UL, CSA
High-sensitivity D4A-0002N UL, CSA
Low-torque *2 D4A-0003N UL, CSA
Sequential oper-
ation: *3D4A-0017N UL, CSA
Center neutral
operation: *3D4A-0018N UL, CSA
Maintained D4A-0005N UL, CSA
Side plunger
Standard D4A-0006N UL, CSA
Vertical roller
D4A-0007-VN
UL, CSA
Horizontal roller
D4A-0007-HN
UL, CSA
Side adjustable D4A-0008N UL, CSA
Model Approved
standards
Appearance Type
Top plunger
Standard D4A-0009N UL, CSA
Roller D4A-0010N UL, CSA
Adjustable D4A-0011N UL, CSA
Flexible rod
Spring wire D4A-0012N UL, CSA
Plastic rod D4A-0014N UL, CSA
Cat whisker D4A-0015N UL, CSA
Coil spring D4A-0016N UL, CSA
5
D4A-@N
Levers
Note: Refer to page 12 for Lever shapes and applicable models.
Specifications
Approved Standards
Note: Ask your OMRON representative for information on approved models.
Ratings
* For those with indicators, refer to the following rated voltages.
Note: 1. The above current ratings are for steady-state current.
2. Inductive loads have a power factor of 0.4 min. (AC) and a time
constant of 7 ms max. (DC).
3. Lamp loads have an inrush current of 10 times the steady-state current.
4. Motor loads have an inrush current of 6 times the steady-state current.
Ratings for Indicators
Actuator Model
Roller Lever
D4A-A00
D4A-A10
D4A-A20
D4A-A30
D4A-B06
Adjustable Roller Lever D4A-C00
D4A-D00
Resin Loop Lever D4A-F00
Fork Lever Lock
D4A-E30
D4A-E20
D4A-E10
D4A-E00
Agency Standard File No.
UL UL508 E76675
CSA CSA C22.2 No.14 LR45746
CCC (CQC) GB14048.5 2003010305077615
Type Rated
voltage
Non-inductive load (A)
Inductive load (A)
Resistive
load
Lamp load
Inductive
load
Motor load
NC NO NC NO NC NO NC NO
SPDT
double-
break
(with/
without
indicator)
125 VAC *
250 VAC *
480 VAC
600 VAC
10
10
10
3
10
10
10
1
3
2
1.5
1
1.5
1
0.8
0.5
10
10
3
1.5
5
3
1.5
1
2.5
1.5
0.8
0.5
8 VDC
14 VDC
30 VDC
125 VDC *
250 VDC *
10
10
6
0.8
0.4
6
6
4
0.2
0.1
3
3
3
0.2
0.1
10
10
6
0.8
0.4
6
6
4
0.2
0.1
DPDT
double-
break
(without
indicator)
125 VAC
250 VAC
480 VAC
600 VAC
5
3
1.5
1
2
1
0.5
0.4
4
2
1
0.7
3
1.5
0.8
0.5
14 VDC
30 VDC
125 VDC
250 VAC
5
3
0.4
0.2
2
1
0.1
0.05
4
2
0.4
0.2
3
1.5
0.1
0.05
DPDT
double-
break
(with in-
dicator)
125 VAC
250 VAC
5
3
2
1
4
2
3
1.5
12 VDC
24 VDC
48 VDC
5
3
1
--- --- --- ---
Item Type
SPDT, Double-break DPDT, Double-break
Without
indicator
With indi-
cator
Without
indicator
With indi-
cator
Inrush
current
Normally closed
30 A max.
Normally open 20 A max.
Classi-
fication Indicator Model Rated
voltage
Leakage
current
Internal
resistance
SPDT
double-
break
Neon lamp D4A-0300N 125 VAC,
250 VAC
Approx.
0.47 mA 150 kΩ
LED D4A-0E00N 24 VDC Approx.
1.3 mA 15 kΩ
DPDT
double-
break
Neon lamp D4A-0L00N 125 VAC,
250 VAC
Approx.
0.28 mA 240 kΩ
LED D4A-0P00N 48 VDC Approx.
1.4 mA ---
6
D4A-@N
Approved Standard Ratings
UL/CSA
A600
D4A-@1@@N (SPDT, Double-break, Without Indicator)
A300
D4A-@3@@N (SPDT, Double-break, With Neon Lamp)
B600
D4A-@5@@N (DPDT, Double-break, Simultaneous
Operation)
D4A-@7@@N (DPDT, Double-break, Sequential Operation)
D4A-@9@@N (DPDT, Double-break, Center Neutral
Operation)
CCC (GB14048.5)
Characteristics
Note: The above figures are initial values.
*1. Excluding maintained models.
*2. The values are calculated at an operating temperature of +5°C to +35°C,
and an operating humidity of 40% to 70%RH. Contact your OMRON sales
representative for more detailed information on other operating
environments.
*3. 1,500 VAC is applied to the indicator lamp type.
*4. Not including Flexible rods (cat whisker, plastic rod, coil spring, and spring
wire types).
*1. Excluding low-torque and high-sensitivity models.
*2. Including roller lever low-torque and high-sensitivity operating models.
Rated
voltage
Carry
current
Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC
240 VAC
480 VAC
600 VAC
10 A
60
30
15
12
6
3
1.5
1.2
7,200 720
Rated
voltage
Carry
current
Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC
240 VAC 10 A 60
30
6
37,200 720
Rated
voltage
Carry
current
Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC
240 VAC
480 VAC
600 VAC
5 A
30
15
7.5
6.0
3
1.5
0.75
0.6
3,600 360
Applicable category and ratings
AC-15 2 A/125 VAC
Degree of protection
(reference standards)
IP67 and NEMA 1, 2, 3, 4X, 5, 6P, 12,
and 13
Durability
*2
Mechanical: *1
SPDT, double-break, roller lever:
50,000,000 operations min.
DPDT, double-break, roller lever:
30,000,000 operations min.
Electrical:
SPDT, double-break: for 125 VAC,
10 A resistive load: 1,000,000 opera-
tions min.
DPDT, double-break: for 125 VAC, 5 A
resistive load: 750,000 operations min.
Operating speed 1 mm/s to 2 m/s (in case of D4A-3101N
roller lever model)
Operating
frequency
Mechanical: 300 operations/minute
Electrical: 30 operations/minute
Rated frequency 50/60 Hz
Insulation resistance
100 MΩ min. (at 500 VDC) between
terminals of the same polarity, be-
tween current-carrying metal parts and
ground, and between each terminal
and non-current-carrying metal part
Contact resistance 25 mΩ max. (initial value)
Temperature rise 50°C max.
Dielectric
strength
Between terminals of
same polarity 1,000 VAC, 50/60 Hz for 1 min.
Between current-car-
rying metal parts and
ground
2,200 VAC, 50/60 Hz for 1 min. *3
Between each termi-
nal and non-current-
carrying metal part
2,200 VAC, 50/60 Hz for 1 min. *3
Pollution degree
(operating environment) 3
Protection against electric shock Class I (with grounding terminal)
Vibration
resistance Malfunction: *410 to 55 Hz, 1.5-mm double amplitude
Shock re-
sistance
Destruction: 1,000 m/s2 max.
Malfunction: *4
SPDT, double-break, roller lever:
600 m/s2 max.
DPDT, double-break, roller lever:
300 m/s2 max.
Ambient operating humidity 35% to 95%RH (with no icing)
Weight Approx. 290 g (in case of D4A-3101N)
Item Type Roller lever *1Plunger, flexi-
ble rod *2With indicator
Ambient tempera-
ture
−
40
°
C to +100
°
C
−
20
°
C to +100
°
C
−10°C to +80°C
7
D4A-@N
Engineering Data
Structure and Nomenclature
Structure (DPDT Double-break)
Note: 1. NBR is used in rubber components.
Fluoro-rubber sealed types use fluoro-rubber.
2. For Roller Levers, there is some lever play in the free position (about 2 mm), but this is due to the structure of the head and does not interfere with performance.
*1. A Receptacle and Terminal Box with 1/2-14NPT conduit threads are also available for the North America market.
*2. The conduit thread indication has been changed from “PF1/2” to “G1/2” accompanying the JIS B 0202 revision.
This changes applies only to the indication; thread sizes and pitches have not been affected.
Electrical Durability (SPDT Double-break) (Ambient temperature: +5°C to +35°C; ambient humidity: 40% to 70%RH)
Electrical Durability (DPDT Double-break)
300
100
500
50
10
02 4 6 8 10 12
30
Durability (x 104 operations)
Switchin
g
current
(
A
)
Operating frequencies:
30 operations/min,
cosφ = 1
125 VAC
250 VAC
480 VAC
300
100
500
50
10
02 4 6 8 10 12
30
Durability (x 104 operations)
Switchin
g
current
(
A
)
Operating frequencies:
30 operations/min,
cosφ = 1
125 VAC
250 VAC
480 VAC
300
100
500
50
10
0123456
30
Durability (x 104 operations)
Switchin
g
current
(
A
)
Operating frequencies:
30 operations/min,
cosφ = 1
125 VAC
250 VAC
480 VAC
300
100
500
50
10
0123456
30
Durability (x 104 operations)
Switchin
g
current
(
A
)
Operating frequencies:
30 operations/min,
cosφ = 1
125 VAC
250 VAC
480 VAC
Head
With the Roller Lever and Side Plunger Switches, the
direction of the switch head can be varied to any of the four
directions by loosing the roller lever switch screws at the
four corners of the head.
The Roller Lever Switch
employs a system which
allows selection of the
operation of only one side
(left or right) or both sides
without use of any tools.
Operating Position
Mark (arrow)
Bearings
The copper-alloy bearings ensure long life
expectancy.
Receptacle
The plug-in type receptacle provides adequate
space for wiring.
Sealed Gasket
The employed full-cover
method prevents the gasket
from direct exposure to oil
or water spray.
Roller
The roller actuator is made of hardened
stainless steel and excels in resistance to
wear.
Lever
With the Roller Lever Switch, the lever can
be installed anywhere in a 360° range (180°
if the lever is reversed and attached to
the shaft).
Oil Seal
Improved sealing property is ensured with a
double-seal construction (a oil seal plus an
X-ring seal).
Switch Box
Boasts long life expectancy (50 million
mechanical operations or more with the
2-pole Double-break Switches and
30 million mechanical operations or more
with the DPDT Double-break Switches).
Ground Terminal Screw
A ground terminal is provided to enhance
safety.
Switch Box Screw
A Phillips screw is used to secure the switch
housing for ease of use, and features a
measure to prevent the screw from coming off.
Actuator
Head
Switch
box
Receptacle
Easy-maintenance Block Mounting
Block mounting makes it possible to easily assemble
or disassemble the head, switch body, and
receptacle of the D4A-@N by tightening or loosening
the attached screws.
Conduit Opening *1, *2
G 1/2 conduit threads featuring high sealing
property are used. (Refer to Limit Switch
Connectors for details on SC connectors).
A terminal box with 1/2-14NPT conduit threads
is also available on request.
8
D4A-@N
Contact Forms (Switch Boxes)
STDP Double-break Switches
* Switches with indicators are factory-set to light when the switch is not operated.
DTDP Double-break Switches
Each of these Switches can be used to replace two limit switches in applications, such as high-speed control in machine tools and
switching motors between forward and reverse, that previously required 2 limit switches. This simplifies wiring, saves space, and reduces
costs.
* Switches with indicators are factory-set to light when the switch is not operated, but the setting can be changed to light for operation (dotted lines).
Type Contact model Operating pattern
Without indicator With neon lamp indicator *With LED indicator *
1NC/1NO
snap-action
D4A-0100N D4A-0300N
Lamp Unit Internal Circuits
D4A-0E00N
Lamp Unit Internal Circuits
Type
Contact model
Operating pattern Remarks
Without indicator With neon lamp
indicator *With LED indicator *
2NC/2NO snap-action,
simultaneous operation D4A-0500N D4A-0L00N D4A-0P00N
Head is compatible with
double-break head. Can
be switched for operation
on both sides of actuator.
2NC/2NO snap-action,
sequential operation
(2-step operation)
D4A-0700N --- --- Use the D4A-0017N Spe-
cial Head.
2NC/2NO snap-action,
central neutral opera-
tion
D4A-0900N --- --- Use the D4A-0018N Spe-
cial Head.
Item Without indicator With neon lamp indicator *With LED indicator *
Contact
form
D4A-0500N
D4A-0700N
D4A-0900N
D4A-0L00N D4A-0P00N
Lamp unit
internal
circuit
----
3
2
4Za
1
3
2
4
1
Za
Lamp
unit
Lamp
unit
Neon lamp
Resistor
3
2
4
1
Za
Lamp
unit
Lamp
unit
Rectifier stack LEDs
Resistor
1-2
3-4
Energized
1-2
3-4
5-6
7-8
Stroke
Energized
1-2
3-4
5-6
7-8
Stroke
Energized
1-2
3-4
5-6
7-8
Energized
Left
operation
Free
position
Right
operation
3
2
4
1
7
6
8
5
Za
3
2
4
1
7
6
8
5
Za Za
Lamp
unit
Lamp
unit
Lamp
unit
Lamp
unit
3
2
4
1
7
6
8
5
Za Za
Lamp
unit
Lamp
unit
Lamp
unit
Lamp
unit
Neon lamp
Resistor
Rectifier stack
Constant
current diode
LED
9
D4A-@N
Dimensions and Operating Characteristics (Unit: mm)
Roller Lever Switches Note: Levers of the side rotary type are optionally available.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Note: The figures in the parentheses are average values.
Set Model Numbers
Model SPDT Double-break DPDT Double-break
Operating characteristics D4A-
3@01N
D4A-
3@02N
D4A-
3@03N
D4A-
3@04N
D4A-
3@05N
D4A-
4@01N
D4A-
4@02N
D
4A-
4@03N
D4A-
4@04N
D4A-
4@05N
D4A-
4@17N
D4A-
4@18N
Operating force
OF max. 0.39 N·m 0.39 N·m 0.2 N·m 0.2 N·m 0.39 N·m 0.39 N·m 0.39 N·m 0.2 N·m 0.2 N·m 0.39 N·m 0.39 N·m 0.39 N·m
Release force RF min. 0.05 N·m 0.05 N·m --- --- --- 0.05 N·m 0.05 N·m --- --- --- 0.05 N·m 0.02 N·m
Pretravel PT max. 15° (12°) 7° (6°) 15° (12°) 7° (6°) 65° (60°) 15° (12°) 7° (6°) 15° (12°) 7° (6°) 65° (60°)
1-stage:
12° (10°)
2-stage:
20° (17°)
19° (15°)
Overtravel OT min. 70°75°70°75°20°70°75°70°75°20°65°65°
Movement Differential 5° (4°) 4° (3°) 5° (4°) 4° (3°) 35° (30°) 7° (6°) 5° (4°) 7° (6°) 5° (4°) 35° (30°) 6° (5°) 5° (4°)
MD max.
(The box in a model number indicates the switch box type.)
6
0.8
R2.6
R2.6
5.2
70.5 75.5
19 34
24.5
7.25 dia.
48
62.5
16.5
28
29.5
44
42
21
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
Two, M6
(depth: 10) screws fo
r
back-mounting
S
tandard
D4A-3@01N, D4A-4@01N
High-sensitivity
D4A-3@02N, D4A-4@02N
Low-torque
D4A-3@03N, D4A-4@03N
High-sensitivity/Low-torque
D4A-3@04N, D4A-4@04N
Sequential Operation
D4A-4@17N
Center Neutral Operating
D4A-4@18N
6
0.8
R2.6
R2.6
5.2
70.5 75.5
19.1
38.1
7.25 dia.
47.5
62
42
21
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
Two, M6
(depth: 10) screws fo
r
back-mounting
Maintained
D4A-3@05N, D4A-4@05N
10
D4A-@N
Side Plunger Switches
* Operating position
Top Plunger Switches
Model SPDT Double-break DPDT Double-break
Operating characteristics D4A-3@06N
D4A-3
@
07-HN D4A-3
@
07-VN
D4A-3@08N D4A-4@06N
D4A-4
@
07-HN D4A-4
@
07-VN
D4A-4@08N
Operating force
OF max. 19.61 N 19.61 N 19.61 N 19.61 N 19.61 N 19.61 N 19.61 N 19.61 N
Release force RF min. 4.90 N 4.90 N 4.90 N 4.90 N 4.90 N 4.90 N 4.90 N 4.90 N
Pretravel PT max. 2.4 mm 2.4 mm 2.4 mm 2.4 mm 2.4 mm 2.4 mm 2.4 mm 2.4 mm
Overtravel OT min. 5.1 mm 5.1 mm 5.1 mm 5.1 mm 5.1 mm 5.1 mm 5.1 mm 5.1 mm
Movement Differential 0.6 mm 0.6 mm 0.6 mm 0.6 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm
MD max.
OP *34±0.8 mm 44±0.8 mm 44±0.8 mm 41 to 47.5 mm 34±0.8mm 44±0.8 mm 44±0.8 mm 41 to 47.5 mm
6
0.8
R2.6
R2.6
5.2
70.5 75.5
19 31.1
21.5 10 dia.
OP
PT
42
21
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
Stainless
steel plunger
Two, M6
(depth: 10) screws
for back-mounting
Standard
D4A-3@06N
D4A-4@06N
6
0.8
R2.6
R2.6
5.2
70.5 75.5
19
21
OPPT
42
31.1
21.5
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
11 dia.x 5
stainless
steel roller
Two, M6
(depth: 10) screws
for back-mounting
Horizontal Roller
D4A-3@07-HN
D4A-4@07-HN
6
0.8
R2.6
R2.6
5.2
70.5 75.5
19
21
OPPT
42
31.1
21.5
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
Two, M6
(depth: 10) screws
for back-mounting
11 dia.x 5
stainless
steel roller
Vertical Roller
D4A-3@07-VN
D4A-4@07-VN
6
0.8
R2.6
R2.6
5.2
70.5 75.5
19
21
OPPT
42
31.1
21.5
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
M5 x 0.8 (length:14)
Allen-head bolt
Two, M6
(depth: 10) screws
for back-mounting
Adjustable
D4A-3@08N
D4A-4@08N
Standard
D4A-3@09N
D4A-4@09N
6
0.8
R2.6
R2.6
5.2
70.5 75.5
27 OP
PT
21
42
10 dia.
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
Two, M6
(depth: 10) screws
for back-mounting
Stainless steel plunger
6
0.8
R2.6
R2.6
5.2
70.5 75.5
27 OP
PT
21
42
16.5
28
29.5
44
+0.2
0
5.2 dia.
mounting
holes
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
11 dia.x 5 stainless
steel roller
Two, M6
(depth: 10) screws
for back-mounting
Roller Plunger
D4A-3@10N
D4A-4@10N
6
0.8
R2.6
R2.6
5.2
70.5 75.5
27 OP
PT
21
42
16.5
28
29.5
44
29.4±0.2
59.5±0.2
+0.2
0
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
Two, M6
(depth: 10) screws
for back-mounting
G1/2
conduit
5.2 dia.
mounting
holes
M5 x 0.8 (length:14)
Allen-head bolt
Adjustable
D4A-3@11N
D4A-4@11N
* Operating position
Model SPDT double-break DPDT double-break
Operating
character-
istics
D4A
-3@09N
D4A
-3@10N
D4A
-3@11N
D4A
-4@09N
D4A
-4@10N
D4A
-4@11N
OF max.
RF min.
PT max.
OT min.
MD max.
17.65 N
4.90 N
1.6 mm
5.1 mm
0.4 mm
17.65 N
4.90 N
1.6 mm
5.1 mm
0.4 mm
17.65 N
4.90 N
1.6 mm
5.1 mm
0.4 mm
17.65 N
4.90 N
1.6 mm
5.1 mm
1.0 mm
17.65 N
4.90 N
1.6 mm
5.1 mm
1.0 mm
17.65 N
4.90 N
1.6 mm
5.1 mm
1.0 mm
OP *46±0.8
mm
56±0.8
mm
55.5 to
62 mm
46±0.8
mm
56±0.8
mm
55.5 to
62 mm
Note: A Fork Lever Lock can be used with D4A-@@05N models only.
11
D4A-@N
Flexible Rod
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Note: The figures in the parentheses are average values.
Model SPDT Double-break DPDT Double-break
Operating characteristics D4A-3@12N D4A-3@14N D4A-3@15N D4A-3@16N D4A-4@12N D4A-4@14N D4A-4@15N D4A-4@16N
Operating force
OF max. 0.98 N 1.47 N 0.98 N 1.47 N
Pretravel PT max. 15° (5°) 15° (5°) 15° (5°) 15° (5°)
6
0.8
R2.6
R2.6
5.2
70.5
330
88
(see note 2)
75.5
59.5±0.2
27
21
29.4±0.2
42
+0.2
0
PT 1.8 dia.
(287)
(see note 1)
16.5
28
29.5
44
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
Two, M6
(depth: 10) screws fo
back-mounting
G1/2
conduit
5.2 dia.
mounting
holes
Stainless steel
wire rod
Note: 1. The stainless rod can be operated from any direction except the
axial direction (i.e., from the top).
2. The optimum operating range of the stainless rod is within 1/3
of the entire length from the top end.
8 dia. max.
Spring wire
D4A-3@12N
D4A-4@12N
6
0.8
R2.6
R2.6
5.2
70.5
150
88.5
75.5
27
21
42
PT
16.5
28
29.5
44
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
Two, M6
(depth: 10) screws for
back-mounting
G1/2
conduit
(see note 2)
+0.2
0
(106.5)
(see note 1)
5.2 dia.
mounting
holes
Note: 1. The plastic rod can be operated from any direction except the
axial direction (i.e., from the top).
2. The optimum operating range of the plastic rod is within 1/3
of the entire length from the top end.
7 dia.
Plastic rod
Plastic Rod
D4A-3@14N
D4A-4@14N
Cat Whisker
D4A-3@15N
D4A-4@15N
6
0.8
R2.6
R2.6
5.2
70.5
170.5
93.5
75.5
27
21
42
PT
16.5
28
29.5
44
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
(see note 2)
+0.2
0
(124)
(see note 1)
5.2 dia.
mounting
holes
Note: 1. The stainless rod can be operated from any direction except the
axial direction (i.e., from the top).
2. The optimum operating range of the stainless rod is within 1/3
of the entire len
g
th from the top end.
1.4 dia.
Stainless steel
wire rod
Two, M6
(depth: 10) screws
for back-mounting
6
0.8
R2.6
R2.6
5.2
70.5
150
75.5
27
21
42
PT
16.5
28
29.5
44
29.4±0.2
59.5±0.2
Four, M4 (length: 12)
screws for head
Two, M5 (length: 20)
screws for box
G1/2
conduit
(see note 2)
+0.2
0
(106.5)
(see note 1)
5.2 dia.
mounting
holes
Note: 1. The coil spring rod can be operated from any direction except the
axial direction (i.e., from the top).
2. The optimum operating range of the coil spring rod is within 1/3
of the entire length from the top end.
6.5 dia.
Two, M 6
(depth: 10) screws
for back-mounting
Stainless steel
coil spring
Coil Spring
D4A-3@16N
D4A-4@16N
12
D4A-@N
Levers (for Roller Lever Switches)
Note: No D4A-0003N or D4A-0004N head should be used with the adjustable roller lever or mechanical malfunctioning could result because the total weight of the
adjustable roller lever is comparatively large. Use a standard-load head (D4A-0001N or D4A-0002N) instead.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
17
7.9
3.6
9
38.1
38.1
19 dia.
(2)
Stainless
sintered
roller
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
90°
11.5
7.9
9
18
19 dia.
38.1 7.3 dia.
Stainless
sintered roller
M5 Allen bolt
Fork Lever Lock
D4A-E30 Note: A Fork Lever
Lock can be
used with
D4A-@@05N
models only.
19.5
7.9
9
18
38.1
19 dia.
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
7.9
9 16.5
18
38.1
19 dia.
7.3 dia.
Stainless
sintered roller
M5 Allen bolt
7.9
9
39.4
18
38.1
19 dia.
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
21
15
9
18
33.7
17.5 dia.
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
7.9
14
4.5
18
21.2
12.9
2.5
113
19 dia.
7.3 dia.
Stainless
sintered roller
M5 Allen bolt
6.4 graduation
33 to 91
(adjustable)
20
10.5
13
4.5
21.2
7.5
160
3 dia.
7.3 dia.
M5 Allen bolt
150 max.
(adjustable)
Stainless rod
11
13.8
5.5
150±10
60±10
7.5
6
33
4 dia.
M5 Allen bolt
M5 Allen bolt
Nylon
25 max.
7.3 dia.
(23.6)
Roller Lever
D4A-A00
Roller Lever
D4A-A20
Roller Lever
D4A-B06
Roller Lever
D4A-A10
Roller Lever
D4A-A30
Nylon Loop Lever
D4A-F00
Adjustable Roller Lever
D4A-C00
Adjustable Rod Lever
D4A-D00
17
7.9
3.6
9
38.1
38.1
19 dia.
Stainless
sintered
roller
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
90°
(2)
Fork Lever Lock
D4A-E20
26
22
6.2
7.9
3.6
9
38.1
38.1
19 dia.
Stainless
sintered
roller
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
90°
(2)
Fork Lever Lock
D4A-E10
26
22
6.2 7.9
3.6
9
38.1
38.1
19 dia.
Stainless
sintered
roller
7.3 dia.
Stainless
sintered
roller
M5 Allen bolt
90°
(2)
Fork Lever Lock
D4A-E00
Note: A Fork Lever
Lock can be
used with
D4A-@@05N
models only.
Note: A Fork Lever
Lock can be
used with
D4A-@@05N
models only.
Note: A Fork Lever
Lock can be
used with
D4A-@@05N
models only.
13
D4A-@N
Head and Lever Positions
Lever Position
Nameplate
When ordering, do not confuse set model numbers and model
numbers for individual blocks.
Compatibility with D4A-@
The D4A-@N is compatible with the D4A-@ when the following
accessories are attached to the D4A-@N.
The D4A-@N without the above accessories is not compatible with the
D4A-@.
D4A-E00 D4A-E10
D4A-E20 D4A-E30
D4A-C00 D4A-D00
Remove the head from the
Switch by loosening the screws
(the screws can be loosened
but not removed from the head).
The operating head can be
positioned and locked in
any of four 90° positions.
The lever can lock in any position through 360° around
the shaft. The lever can be reversed and attached to the
shaft, in which case the switching operation should
complete in a range of 0° to 180°.
Four, M4 x 12
360°
operating
position
Loosen the screw
to adjust the
length of the rod.
Adjustable between
33 and 91 mm
D4A-D00 Loosen
the bolt to adjust
the length of the
lever.
By loosening the Allen-head bolt on an adjustable roller lever
or rod lever, the length of the lever can be adjusted.
There are four kinds of fork lever locks.
The position of each roller is different.
It is possible to use D4A-E00 through
D4A-E30 levers instead, if they are reversed
before attaching.
They can be used with D4A-@@05N
models only.
180° operating
position
•The operating head can be positioned
and locked in any of four 90° positions
and a lever can lock in any position
through 360° around the shaft of the Limit
Switch. Furthermore, the lever can be
reversed and attached to the shaft (refer
to the figures below on the right hand
side). Therefore the roller is compatible
with a wide movement range of a dog.
•A Fork Lever Lock can be used with
maintained models (D4A-0005N) only.
59 to 64.5
52.9 to 58.4
67 to 72.5
44.9 to 50.4
73 to 78.5
38.9 to 44.4
86.9 to 92.4
25 to 30.5
D4A-A00 D4A-A10 D4A-A20 D4A-A30
The whole switch model without
lever is printed.
The type of switch box is printed.
(The type is also indicated on the
head and receptacle.) D4A-@
Receptacle box
D4A-
@
N
Switch box
D4A-@N
Head
14
D4A-@N
Safety Precautions
Refer to Safety Precautions for All Limit Switches.
Operating Environment
•Seal material may deteriorate if a Switch is used outdoor or where
subject to special cutting oils, solvents, or chemicals. Always
appraise performance under actual application conditions and set
suitable maintenance and replacement periods.
•Install Switches where they will not be directly subject to cutting
chips, dust, or dirt. The Actuator and Switch must also be protected
from the accumulation of cutting chips or sludge.
•Constantly subjecting a Switch to vibration or shock can result in
wear, which can lead to contact interference with contacts,
operation failure, reduced durability, and other problems.
Excessive vibration or shock can lead to false contact operation or
damage.
Install Switches in locations not subject to shock and vibration and
in orientations that will not produce resonance.
•The Switches have physical contacts. Using them in environments
containing silicon gas will result in the formation of silicon oxide
(SiO2) due to arc energy. If silicon oxide accumulates on the
contacts, contact interference can occur. If silicon oil, silicon filling
agents, silicon cables, or other silicon products are present near the
Switch, suppress arcing with contact protective circuits (surge
killers) or remove the source of silicon gas.
Changing the Operating Direction
Roller Lever Switch
The head of the side rotary type can be converted in seconds to CW,
CCW, or both-way operation. Follow the procedures on the right hand
side for conversion (not applicable to the Maintained, Sequential
Operating, Center Neutral Operating Switches).
Lighting Mode Selection of Indicators (SPDT only)
The lighting mode of the operation indicator can be changed easily
between two modes: lighting when the Switch is operating and
lighting when the Switch is not operating.
*1. The lamp is lit when the actuator is at the free position.
The lamp will be off when the contacts of the Limit Switch have been
actuated and snapped to each other at the operating position.
*2. The lamp is lit when the contacts have been released and snapped only from
the operating position.
Change the lighting mode as follows:
In either case, the lamp will not light when the load is ON.
Mounting
Precautions for Correct Use
Operating Part (Rear of Head) Procedures
1. Dismount the head by loosening the
four screws that secure it.
2. Turn over the head to set the desired
operation (CW, CCW, or both). The
desired side can be selected by set-
ting the mode selector knob shown in
the figure. This knob is factory set to
the “CW+CCW” (both-way operation)
position.
3. When set to the CW position, the
head rotates in clockwise direction.
When set to the CCW position, the
head rotates in counterclockwise di-
rection.
In either case, be sure to accurately
align the arrow mark to the setting po-
sition.
Not Suitable Suitable
Operating position arrow marks
Lights When Not Operating *1Lights When Operating *2
Model
G1/2 Conduit Mounting lo-
cations
D4A-3@@@N
D4A-4@@@N
Front
Mounting
Rear
Mounting
3
4
2
1
Load
Power supply
Internal circuits
Built-in switch
2
34
1
Internal circuits
Built-in switch
Power supply
Load
1. Push the claw securing
the lamp section to the
right (do not push
strongly).
2. Remove the lamp
section.
3. Mount the lamp section
so that legend “NC-ON”
or “NO-ON” will appear
in the display window.
+0.2
0
59.5±0.15
29.4±0.15
Two, 5.2 dia. holes
or M5 tapped holes
: Mounting
locations
+0.2
0
59.5±0.15
29.4±0.15
Two, 6.2 dia. holes
(Recommended mounting
screws: M6.
Switch Box depth: 10.)
: Mounting
locations
15
D4A-@N
Screw Tightening Torques for Heads and Switch Boxes
To maintain the high sealing capability of the Limit Switch, tighten the
screws for the head and switch box with the following torques:
Head (four 12-mm M4 screws): 1.2 to 1.4 N·m
Switch box (two 20-mm M5 screws): 2.4 to 2.7 N·m
Solderless Terminals
The D4A-@N with DPDT double-break incorporates solderless
terminals.
Operation
•The operating methods, cam and dog shapes, operating frequency,
and overtravel (OT) have a significant effect on the service life and
accuracy of the Limit Switch. The shape of the cam should be as
smooth as possible.
•A marginal overtravel (OT) value should be set. The ideal value is
the rated OT value x 0.7.
•The actuator should not be remodeled to change the operating
position.
Connectors
To satisfy IP67, apply sealing tape to the connector conduit.
Appropriate external diameter of cables is 5.5 to 14 dia.
Use OMRON’s SC-@M Series.
Tighten the Connectors to a torque of 1.8 to 2.2 N·m.
Maintenance and Repair
The user must not maintain or repair equipment incorporating any
D4A-N model. Contact the manufacturer of the equipment for any
maintenance or repairs required.
Appropriate Tightening Torque
A loose screw may cause malfunctions. Be sure to tighten each screw
to the proper tightening torque as shown in the table.
* When using M5 Allen-head bolts, particularly when the head direction has
been changed, check the torque of each screw and make sure that the screws
are free of foreign substances, and that each screw is tightened to the proper
torque.
No. Type
Appropriate tightening
torque
1Terminal screws (M3.5 screws) (in-
cluding grounding terminals) 0.78 to 0.88 N·m
2Head mounting screws 1.18 to 1.37 N·m
3Switch box mounting screws 2.35 to 2.75 N·m
4*
Body mounting screws
4.90 to 5.88 N·m
5Connectors 1.77 to 2.16 N·m
6Actuator mounting screws 2.45 to 2.65 N·m
Individual model numbers
*
Example: D4A- 3101N D4A- 3 000N D4A-0 1 00N D4A-00 01 N D4A-A00
Receptacle Switch box Head Lever
=
=
Set model numbers
How to
O
rder
The D4A-@N is compatible with the D4A-@
when the following accessories are
attached to the D4A-@N.
*The D4A-@N without the above
accessories is not compatible with
the D4A-@.
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.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS 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 OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
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 model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog 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 users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2012.9
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 2012 All Right Reserved.