New Product
1
Three-phase Voltage and Phase-sequence Phase-loss Relay
K8AK-PM
Ideal for Monitoring 3-phase Power
Supplies for Industrial Facilities and
Equipment.
• Greater resistance to inverter noise.
• Monitor overvoltages, undervoltages, phase sequence,
and phase loss for three-phase 3-wire or 4-wire power
supplies with just one Unit.
Switch setting for 3-phase 3-wire or 3-phase 4-wire power
supply.
• Two SPDT output relays, 5 A at 250 VAC (resistive load).
Output overvoltages and undervoltages using separate
relays.
• World-wide power specifications supported by one Unit
(switchable).
• Output status can be monitored using LED indicator.
Ordering Information
List of Models
Note: Three-phase 3-wire or 4-wire and the input range are switched using a DIP switch.
* The power supply voltage is the same as the rated input voltage.
●Single K8AK Monitors 3-phase Power Supply with 3 or 4 Wires
Monitoring Relays can be used to monitor 3-phase power supplies with 3 or 4 wires simply by changing DIP switch settings.
A Single K8AK Can Monitor a 3-phase Power Supply Anywhere in the World
Reduces Maintenance Parts Inventory
Refer to Safety Precautions on page 10.
Refer to page 8 to 9 for commonly asked questions.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Rated input* Model
3-phase 3-wire mode 200, 220, 230, 240 VAC K8AK-PM1
3-phase 4-wire mode 115, 127, 133, 138 VAC
3-phase 3-wire mode 380, 400, 415, 480 VAC K8AK-PM2
3-phase 4-wire mode 220, 230, 240, 277 VAC
SW3 ON OFF ON OFF
SW4 ON ON OFF OFF
K8AK-PM1 SW2 ON P-N 138 V 133 V 127 V 115 V
OFF P-P 240V 230 V 220 V 200 V
K8AK-PM2 SW2 ON P-N 277 V 240 V 230 V 220 V
OFF P-P 480 V 415 V 400 V 380 V
Phase to phase voltage (3 wires)
Phase to neutral voltage (4 wires)
L1 L2 L3 L1 L2 L3 N
400VAC
400VAC
400VAC
230VAC
230VAC
230VAC
K8AK-PM
2
Ratings and Specifications
Ratings
Rated input
voltage
K8AK-PM1 Three-phase, three-wire Mode: 200, 220, 230 and 240 VAC
Three-phase, four-wire Mode: 115, 127, 133 and 138 VAC
K8AK-PM2 Three-phase, three-wire Mode: 380, 400, 415 and 480 VAC
Three-phase, four-wire Mode: 220, 230, 240 and 277 VAC
Input load K8AK-PM1: Approx. 4.4 VA
K8AK-PM2: Approx. 4.4 VA
Operating value setting range (OVER, UNDER) Overvoltage
−30% to 25% of rated input voltage
Undervoltage
−30% to 25% of rated input voltage
Note: The rated input voltage can be switched using the DIP switch.
Operating value 100% operation at set value
Reset value 5% of operating value (fixed)
Reset method Automatic reset
Operating time
setting range (T)
Overvoltage/undervoltage 0.1 to 30 s
Phase sequence 0.1 s±0.05 s
Phase loss 0.1 s max.
Power ON lock time (LOCK) 1 s or 5 s (Switched using DIP switch.)
Indicators Power (PWR): Green, Relay output (RY): Yellow, OVER/UNDER: Red
Output relays Two SPDT relays (NC operation)
Output relay ratings Rated load
Resistive load
5 A at 250 VAC
5 A at 30 VDC
Maximum switching capacity: 1,250 VA, 150 W
Minimum load: 5 VDC, 10 mA (reference values)
Mechanical life: 10 million operations min.
Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations
3 A at 250 VAC/30 VDC: 100,000 operations
Ambient operating temperature −20 to 60°C (with no condensation or icing)
Storage temperature −25 to 65°C (with no condensation or icing)
Ambient operating humidity 25% to 85% (with no condensation)
Storage humidity 25% to 85% (with no condensation)
Altitude 2,000 m max.
Terminal screw tightening torque 0.49 to 0.59 N·m
Terminal wiring method Recommended wire
Solid wire: 2.5 mm2
Twisted wires: AWG16, AWG18
Note: 1. Ferrules with insulating sleeves must be used with twisted wires.
2. Two wires can be twisted together.
Recommended ferrules
Al 1,5-8BK (for AWG16) manufactured by Phoenix Contact
Al 1-8RD (for AWG18) manufactured by Phoenix Contact
Al 0,75-8GY (for AWG18) manufactured by Phoenix Contact
Case color N1.5
Case material PC and ABS, UL 94 V-0
Weight Approx. 150 g
Mounting Mounts to DIN Track.
Dimensions 22.5 × 90 × 100 mm (W×H×D)
K8AK-PM
3
Specifications
Input frequency 50/60 Hz
Overload capacity Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC).
Repeat accuracy Operating value ±0.5% full scale (at 25°C and an ambient humidity of 65% at the rated power supply voltage, DC and 50/60
Hz sine wave input)
Operating time ±50 ms (at 25°C and 65% humidity, rated power supply voltage)
Applicable
standards
Conforming standards EN 60947-5-1
Installation environment (pollution level 2, installation category III)
EMC EN 60947-5-1
Safety standards UL 508 (Recognition), Korean Radio Waves Act (Act 10564),
CSA: C22.2 No.14, CCC: GB/T 14048.5
Insulation resistance 20 MΩ
Between all external terminals and the case
Between all input terminals and all output terminals
Dielectric strength 2,000 VAC for 1 min
Between all external terminals and the case
Between all input terminals and all output terminals
Noise immunity 1,500 V power supply terminal common/normal mode
Square-wave noise of ±1 μs/100 ns pulse width with 1-ns rise time
Vibration resistance Frequency: 10 to 55 Hz, 0.35-mm single amplitude
10 sweeps of 5 min each in X,Y, and Z directions
Shock resistance 100 m/s2, 3 times each in 6 directions along 3 axes
Degree of protection Terminals: IP20
0
10
20
30
40
50
60
51015
Distance between products d [mm]
Ambient temperature [°C]
K8AK
No.3
K8AK
No.2
K8AK
No.1
K8AK
No.4
K8AK
No.5
DIN Track Distance between products: d
Sample: K8AK-PM
Mounting distances: 0, 5, and 10 mm min.
Test method
●Relationship of Mounting Distance between K8AK-PM Relays
and Ambient Temperature (Reference Values)
The following diagram shows the relationship between the mounting distances and the
ambient temperature.
If the relay is used with an ambient temperature that exceeds these values, the
temperature of the K8AK may rise and shorten the life of the internal components.
K8AK-PM
4
Connections
Terminal Diagram
Note: 1. Do not connect anything to terminals that are shaded in gray.
2. Use the recommended ferrules if you use twisted wires.
Wiring Example
Timing Charts
●Overvoltage/Undervoltage and Phase
Sequence/Phase Loss Operation Diagram
Operation Indicators
*1 Over_Ry turns OFF when phase loss is detected.
*2 L1 and L2 are also used for the power supply. If the voltage becomes very
low, the indicator will turn OFF.
*3 The indicator will flash once per second after an incorrect phase is detected
and once per 0.5 second during the detection time.
L1 L2 L3
11 12
Control Output
Relay Output
250 VAC, 5 A (resistive load)
3-phase,
3-wire
power
supply
30 VDC, 5 A (resistive load)
14
Relay Output
Input Voltages
Monitoring 3-phase,
3-wire Power Supply Monitoring 3-phase,
4-wire Power Supply
or 3-phase,
4-wire
power
supply
21 24 22
Relay Output
N__
Overvoltage
L1
L2 L3
__N
L1
L2 L3
__N
Undervoltage, phase
sequence or phase loss
11 12 14
21 24 22
3-phase
voltage
21 22
L1 L2 L3
11 12 14
N__
L1
L2
L3
N
24
Motor
Power supply
AC/DC
Input
Undervoltage alarm indicator
Undervoltage relay 21-24
L2
L1
L3
L2
L3
L2
L1
L1
L2
L3
t
t1
t
L1
L2
L3
L1
L3
L2
L1
L3
FlashingFlashingFlashing
Flashing
Lit
Overvoltage alarm indicator
Undervoltage set value
Overvoltage
set value
Undervoltage alarm indicator
Overvoltage relay 11-14
Undervoltage relay 21-24
Input
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
t: Operating time (0.1 to 30 s)
t1: Power ON lock (1 s or 5 s)
Phase loss operation Phase sequence operation
Flashing
t: Operating time (0.1 to 30 s)
Lit
Note: 1. The K8AK-PM@ output relay is normally operative.
2. The power ON lock prevents unnecessary alarms from being
generated during the instable period when the power is first
turned on. There is no relay output during timer operation.
3. Phase loss is detected by L1, L2, and L3 voltage drops.
A phase loss will exist if any of the phases drops below 60%
of the rated input.
Item Display Contact
operation
Ry
indicator
Over
indicator
Under
indicator
Over
relay
Under
relay
Overvoltage ON ON OFF OFF ON
Undervoltage ON OFF ON ON OFF
Phase loss OFF OFF*1ON*2OFF *1OFF
Phase
se-
quence
Incor-
rect
phase
ON OFF Flashing*3ON OFF
Cor-
rect
phase
ON OFF OFF ON ON
K8AK-PM
5
Nomenclature
Front ●Indicators
* The input across L1 and L2 is used for the internal power supply.
Therefore, the power indicator will not be lit if there is no input
across L1 and L2.
*
●Setting Knobs
Note: 1. Use either a solid wire of 2.5 mm2 maximum or a ferrule with
insulating sleeve for the terminal connection.
The length of the exposed current-carrying part inserted into
the terminal must be 8 mm or less to maintain dielectric
strength after connection.
Recommended ferrules
Phoenix Contact
• Al 1,5-8BK (for AWG16)
• Al 1-8RD (for AWG18)
• Al 0,75-8GY (for AWG18)
2. Screw tightening torque: 0.49 to 0.59 N·m
Power indicator
Relay status indicator
Overvoltage knob
(OVER)
Undervoltage knob
(UNDER)
Operating time knob
(T)
Alarm indicator
Terminal block
(See notes 1 and 2.)
Terminal block
(See notes 1 and 2.)
Item Meaning
Power indicator
(PWR: Green)
Lit when power is being supplied*
Relay status indicator
(RY: Yellow)
Lit when relay is operating (normally lit).
Alarm
indicator
Overvoltage:
Red
Lit when there is an overvoltage.
The indicator flashes to indicate the error status after
the overvoltage has exceeded the set value while the
operating time is being clocked.
Undervoltage:
Red
•Lit when there is an undervoltage or phase loss.
The indicator flashes to indicate the error status
after the undervoltage has exceeded the set
value while the operating time is being clocked.
•Lit when there is a phase sequence error.
Item Usage
Overvoltage knob
(OVER)
Can be set between −30% and 25% of the rated
input.
Undervoltage knob
(UNDER)
Can be set between −30% and 25% of the rated
input.
Operating time knob (T) Used to set the operating time to 0.1 to 30 s.
For 2.5 mm2 or
smaller solid wires
For ferrules with
an insulation sleeve.
8 mm max. 8 mm max.
K8AK-PM
6
Operation Methods
Connections
●Input
Connect to L1, L2, and L3 (for three-phase three-wire mode) or L1, L2, L3, and N (for three-phase four-wire
mode), depending on the mode selected using pin 2 on the DIP switch.
The Unit will not operate correctly if the DIP switch setting and the wiring do not agree.
Make sure the phase sequence is wired correctly. The Unit will not operate normally if the phase sequence
is incorrect.
●Outputs
Terminals 11, 12, and 14 are the output terminals for overvoltage (SPDT).
Terminals 21, 22, and 24 are the output terminals for undervoltage, phase loss, and phase sequence
(SPDT).
* Use the recommended ferrules if you use twisted wires.
DIP Switch Settings
The power ON lock time, number of wires, and rated voltage are set using the DIP switch located on the bottom of the Unit.
Load
Voltage input
Signal output
14
12
L1
L2
L3
11
L1NL2L3
Signal output
24
22
21
Undervoltage
Phase loss,
Phase sequence
Overvoltage
N
SW3 DIP switch pins
ON
OFF
SW2
SW1
SW4
●DIP Switch Functions
K8AK-PM1
Note: All pins are set to OFF at the factory.
K8AK-PM2
Note: All pins are set to OFF at the factory.
Pin OFF ● ↑
ON ❍ ↓
Power ON lock
time
1 s ●--- --- ---
5 s ❍--- --- ---
Number of wires 3-wire 3-phase --- ●--- ---
4-wire 3-phase --- ❍--- ---
Rated voltage 3-wire 3-
phase
4-wire 3-
phase
200 V 115 V --- --- ●●
220 V 127 V --- --- ❍●
230 V 133 V --- --- ●❍
240 V 138 V --- --- ❍❍
Pin OFF ● ↑
ON ❍ ↓
Power ON lock
time
1 s ●--- --- ---
5 s ❍--- --- ---
Number of wires 3-wire 3-phase --- ●--- ---
4-wire 3-phase --- ❍--- ---
Rated voltage 3-wire 3-
phase
4-wire 3-
phase
380 V 220 V --- --- ●●
400 V 230 V --- --- ❍●
415 V 240 V --- --- ●❍
480 V 277 V --- --- ❍❍
1
OFF
ON
2 3 4
1
OFF
ON
2 3 4
K8AK-PM
7
lSetting Method
●Overvoltage
The overvoltage knob (OVER) is used to set the overvoltage threshold.
The overvoltage can be set to between −30% and 25% of the rated input voltage.
Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the
same level.)
Use this as a guide to set the voltage.
The rated input depends on the model and DIP switch setting.
Example: K8AK-PM1 with Pin 2 Turned OFF (Three-phase, Three-wire Mode) and Pins 3 and 4 Turned OFF (Rated Voltage of 200 V)
The rated input voltage is 200 VAC and the setting range is 140 to 250 V.
●Undervoltage
Undervoltage is set using the undervoltage knob (UNDER).
The undervoltage can be set to between −30% and 25% of the rated input.
Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the
same level.)
Use this as a guide to set the voltage.
The rated input depends on the model and DIP switch setting.
Example: K8AK-PM1 with Pin 2 Turned OFF (Three-phase, Three-wire Mode) and Pins 3 and 4 Turned OFF (Rated Voltage of 200 V)
The rated input voltage is 200 VAC and the setting range is 140 to 250 V.
●Operating Time
The operating time is set using the operating time knob (T).
The operating time can be set to between 0.1 and 30 s.
If the input exceeds (or drops lower than) the voltage set value, the alarm indicator will start flashing for the set period and then stay lit.
Dimensions (Unit: mm)
Three-phase Voltage and Phase-sequence Phase-loss Relays
Optional Parts for DIN Track Mounting
22.5
90
100
72 5
K8AK-PM1
K8AK-PM2
*Dimensions in parentheses are for the PFP-50N.
4.5
15 25 25
10 10
1,000 (500)*
25 25
15 (5)*
35
±0.3
7.3
±0.15
27
±0.15
1
●DIN Tracks
PFP-100N
PFP-50N
K8AK-PM
8
Checking Operation
Overvoltages
Gradually increase the input from 80% of the set value.
The input value will equal the operating value when the input
exceeds the set value and the alarm indicator starts flashing.
Operation can be checked by the relay output that will start
after the operating time has passed.
Undervoltage
Gradually decrease the input from 120% of the set value and
check the operation using the same method as for
overvoltage.
Example: For monitoring mode set to three-phase three-wire
monitoring, a rated voltage of 200 V, and an operating
time of 5 s.
Note: K8AK-PM@ output relays are normally operative.
Connection Diagram 1
How to Measure the Operating Time
Overvoltage
Change the input suddenly from 0% to 120% of the set value
and measure the time until the Unit operates.
Undervoltage
Change the input suddenly from 120% to 0% of the set value
and measure the time until the Unit operates.
Operating Time
Adjust the slide resistor so that the voltage applied to the
K8AK terminals is 120% of the set value (for overvoltage
detection) and 80% of the set value (for undervoltage
detection) when the auxiliary relay operates, as shown in
connection diagram 2. Close the switch and use the cycle
counter to measure the operating time.
Connection Diagram 2
Checking the Phase Sequence and Phase Loss Operation
Phase Sequence
Switch the wiring, as shown by the dotted lines in connection
diagram 1, to reverse the phase sequence and check that the
K8AK operates.
Phase loss
Create a phase loss for any input phase and check that the
K8AK operates.
Questions and Answers
Q
Operating set value
Input voltage
Alarm indicator
Relay output
Flashing
Lit
5 s
0 to 150 V
V1
Three-phase variable
autotransformer
Overvoltage
Undervoltage
L1
L2
L3
3φ,
200 VAC V2 V3
L1
L2
L3
Q
3φ, 200 VAC
L1
L2
L3
±C 200 V
Cycle counter
V1
V2 V3
X
X/a X/b
L1
L2
L3
R1
R2
R1: Slide resistor
200 Ω 200 W
R2: 100 Ω 400 W
Q
K8AK-PM
9
Load-side Phase Loss
In principle, phase loss cannot be detected on the load side
because the K8AK-PM measures three-phase voltage to
determine phase loss.
Motor Load Phase Loss during Operation
Motor load phase loss cannot be detected during operation. It
can be used to detect phase loss at startup.
Normally, three-phase motors will continue to rotate even if
one phase is open. The three-phase voltage will be induced
at the motor terminals. The diagram shows voltage induction
at the motor terminals when phase R has been lost with a
load applied to a three-phase motor. The horizontal axis
shows the motor load as a percentage of the rated load, and
the vertical axis shows voltage as a percentage of the rated
voltage. The lines in the graph show the voltage induced at
the motor terminals for each load phase loss occurs during
operation. As the graph shows, phase loss cannot be
detected because the motor terminal voltage does not drop
very much even if a phase is lost when the load on the motor
is light. To detect motor load phase loss during operation, use
the undervoltage detection function to detect the motor
terminal voltages at phase loss.
Set the operating time carefully because it will affect the time
from when the phase loss occurs until tripping when this
function is used.
Characteristic Curve Diagram
Note: For phase loss of phase R. VST, VTR, and VRS indicate the motor
terminal voltage at phase loss.
Overvoltage Detection When Only One Phase Exceeds the
Overvoltage Set Value
The K8AK monitors each of the three-phase voltages. This
means an overvoltage is detected even if only one phase
exceeds the set value. The same applies to undervoltages.
Questions and Answers
Q
Q
100
95
90
85
80
75
70
65
60
55
50
45
100 2030405060708090100110
VST
VTR
VRS
Note: This characteristic curve shows the approximate
values only.
Voltage (as a percentage of rated voltage)
Motor load (as a percentage of rated load)
Q
K8AK-PM
10
Safety Precautions
Be sure to read the precautions for all models in the website at the following URL: http://www.ia.omron.com/.
Warning Indications
Meaning of Product Safety Symbols
Electrical shock may occasionally cause serious injury.
Confirm that the input voltage is OFF before starting any
wiring work and wire all connections correctly.
Electrical shock may cause minor injury.
Do not touch terminals while electricity is being supplied.
There is a risk of minor electrical shock, fire, or device failure.
Do not allow any pieces of metal, conductors, or cutting chips
that occur during the installation process to enter the product.
Explosions may cause minor injuries. Do not use the product
in locations with inflammable or explosive gases.
There is a risk of minor electrical shock, fire, or device failure.
Do not disassemble, modify, repair, or touch the inside of the
product.
Loose screws may cause fires. Tighten terminal screws to the
specified torque of 0.49 to 0.59 N·m.
Use of excessive torque may damage the terminal screws.
Tighten terminal screws to the specified torque of 0.49 to
0.59 N·m.
Use of the product beyond its life may result in contact welding
or burning. Make sure to consider the actual operating
conditions and use the product within its rated load and
electrical life count. The life of the output relay varies
significantly with the switching capacity and switching
conditions.
WARNING
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.
CAUTION Indicates a potentially hazardous situation
which, if not avoided, may result in minor or
moderate injury or in 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,
malfunction, or undesirable effects on
product performance.
Used to warn of the risk of electric shock under
specific conditions.
Used for general prohibitions for which there is no
specific symbol.
Used to indicate prohibition when there is a risk of
minor injury from electrical shock or other source if
the product is disassembled.
Used for general mandatory action precautions for
which there is no specified symbol.
WARNING
CAUTION
K8AK-PM
11
1. Do not use or store the product in the following locations.
•Locations subject to water or oil
•Outdoor locations or under direct sunlight
•Locations subject to dust or corrosive gases (particularly
sulfurizing gases, ammonia, etc.)
•Locations subject to rapid temperature changes
•Locations prone to icing and dew condensation
•Locations subject to excessive vibration or shock
•Locations subject to wind and rain
•Locations subject to static electricity and noise
•Habitats of insects or small animals
2. Use and store the product in a location where the ambient
temperature and humidity are within the specified ranges. If
applicable, provide forced cooling.
3. Mount the product in the correct direction.
4. Do not wire the input and output terminals incorrectly.
5. Make sure the input voltage and loads are within the
specifications and ratings for the product.
6. Make sure the crimp terminals for wiring are of the specified size.
7. Do not connect anything to terminals that are not being used.
8. Use a power supply that will reach the rated voltage within 1
second after the power is turned ON.
9. Keep wiring separate from high voltages and power lines that
draw large currents.
Do not place product wiring in parallel with or in the same path as
high-voltage or high-current lines.
10.Do not install the product near equipment that generates high
frequencies or surges.
11.The product may cause incoming radio wave interference. Do not
use the product near radio wave receivers.
12.Install an external switch or circuit breaker and label it clearly so
that the operator can quickly turn OFF the power supply.
13.Make sure the indicators operate correctly. Depending on the
application environment, the indicators may deteriorate
prematurely and become difficult to see.
14.Do not use the product if it is accidentally dropped. The internal
components may be damaged.
15.Be sure you understand the contents of this catalog and handle
the product according to the instructions provided.
16.Do not install the product in any way that would place a load on it.
17.When discarding the product, properly dispose of it as industrial
waste.
18.The product must be handled only by trained electrician.
19.Prior to operation, check the wiring before you supply power to
the product.
20.Do not install the product immediately next to heat sources.
21.Perform periodic maintenance.
Observe the following operating
methods to prevent failure and
malfunction.
1. Use the input power and other power supplies and converters
with suitable capacities and rated outputs.
2. Use a precision screwdriver or similar tool to adjust the setting
knobs.
3. The distortion in the input waveform must be 30% max. If the
input waveform is distorted beyond this level, it may cause
unnecessary operation.
4. The product cannot be used for thyristor control or on the
secondary side of an inverter. To use the product on the primary
side of an inverter, install a noise filter on the primary side of the
inverter.
5. To reduce the error in the setting knob, always turn the setting
knob from the minimum setting toward the maximum setting.
6. Phase loss is detected only when the power supply to the motor is
turned ON. Phase loss during motor operation is not detected.
7. Phase loss can be detected only from the input contacts to the
power supply side. Phase loss cannot be detected from the input
contacts to the load side.
8. When cleaning the product, do not use thinners or solvents. Use
commercial alcohol.
Correct Mounting Direction, Mounting,
and Removing
•Mounting to DIN Track
1. Attach the product to the DIN Track with the tab at the top and
the hooks at the bottom.
2. Push the product onto the Track until the hooks lock into place.
•Removing from the DIN Track
Pull down on the bottom hook with a flat-blade screwdriver and lift
up on the product.
Precautions for Safe Use Precautions for Correct Use
AB
PFP-100N (100 cm)
PFP-50N (50 cm)
Applicable DIN Tracks:
K8AK-PM
12
Adjusting the Setting Knobs
•Use a screwdriver to adjust the setting knobs. The knobs have a
stopper that prevents them from turning beyond the full right or left
position. Do not force a knob beyond these points.
Setting knob
MEMO
13
MEMO
14
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.
0513
Authorized Distributor:
In the interest of product improvement,
specifications are subject to change without notice.
Cat. No. N185-E1-01 0314 (0314)
© OMRON Corporation 2014 All Rights Reserved.
OMRON Corporation Industrial Automation Company
OMRON ELECTRONICS LLC
One Commerce Drive Schaumburg,
IL 60173-5302 U.S.A.
Tel: (1) 847-843-7900/Fax: (1) 847-843-7787
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69-2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
Contact: www.ia.omron.com
Tokyo, JAPAN
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road # 05-05/08 (Lobby 2),
Alexandra Technopark,
Singapore 119967
Tel: (65) 6835-3011/Fax: (65) 6835-2711
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China CSM_3_4_0519
Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200
